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OpenAccountants/Skills/Quebec — Corporate Income Tax (CO-17)

Quebec — Corporate Income Tax (CO-17)

Asked about Quebec corporate income tax. Quebec administers its own CIT (separate from federal T2) via the CO-17 return filed with Revenu Québec under the Quebec Taxation Act (Loi sur les impôts, RLRQ c. I-3).

CanadaTax year 2025· Last reviewed May 27, 2026

Key facts — Canada, 2025

FieldValue
ProvinceQuebec (Québec)
TaxCorporate Income Tax — Impôt sur le revenu des sociétés
CurrencyCAD
Tax authorityRevenu Québec (Agence du revenu du Québec — ARQ)
Primary legislationLoi sur les impôts, RLRQ c. I-3 (Quebec Taxation Act, "QTA")
Companion administration ActLoi sur l'administration fiscale, RLRQ c. A-6.002 (Tax Administration Act)
Federal interactionSeparate return — Quebec does NOT join the federal T2 collection agreement. A corporation with a permanent establishment in Quebec files both the federal T2 (with CRA) and the CO-17 (with Revenu Québec).
Quebec general CIT rate11.5% of taxable income earned in Quebec (Section 771 QTA) — combined with federal 15% net rate = 26.5% combined general rate
Quebec Small Business Deduction (SBD) rate3.2% on the first $500,000 of active business income for CCPCs that pass the paid-hours test — combined with federal 9% small-business rate = 12.2% combined small-business rate
SBD paid-hours threshold (full rate)≥ 5,500 paid hours in the taxation year (or preceding year) — Section 771.1 QTA
SBD paid-hours phase-outLinear reduction between 5,000 and 5,500 paid hours; no SBD if < 5,000 hours (with limited exception for primary-sector and manufacturing activities)
SBD business limit$500,000 — aligned with federal small-business limit; reduced if taxable capital employed in Canada is between $10M and $50M (parallel to federal grind)
C3i credit rate (high-vitality zones)20% of qualified investment in qualified property (e.g., Montreal, Quebec City urban areas)
C3i credit rate (intermediate zones)30% of qualified investment
C3i credit rate (low-vitality / resource regions)40% of qualified investment (e.g., Gaspésie–Îles-de-la-Madeleine, Bas-Saint-Laurent, Côte-Nord, Nord-du-Québec, Saguenay–Lac-Saint-Jean designated portions)
C3i credit refundabilityFully refundable for CCPCs with assets ≤ $50M; partially refundable on a sliding scale up to $100M; non-refundable above $100M
R&D credit (Quebec)Quebec stacks on top of the federal SR&ED ITC. Refundable for CCPCs. Multiple components: salaries (general rate up to 30% for SMEs sliding to 14% for large), university / public research contracts, private partnership pre-competitive research, fees paid to eligible research consortia
Capital gains inclusion50% for gains realised on or before 24 June 2024; 66.67% thereafter — Quebec harmonised with the federal change announced in the 2024 federal Budget and confirmed in the Quebec 2024–25 Information Bulletins
Compensation tax on financial institutionsSeparate tax under Title IV.1.1 QTA (out of scope of this skill)
Allocation of taxable income"Taxable income earned in Quebec" (TIEQ) — based on the two-factor formula (50% wages + 50% gross revenue from a Quebec PE) — Section 771R QTA and Regulation 771R
Annual returnForm CO-17 — Déclaration de revenus des sociétés
CO-17 filing deadline6 months after the end of the taxation year (parallel to federal T2 — Section 1000 QTA)
Payment deadline (balance due)2 months after year-end for general corporations; 3 months for CCPCs claiming the SBD and meeting the federal CCPC payment-extension criteria (Section 1027 QTA — harmonised with federal Section 157(1)(b) ITA)
Instalments — frequencyMonthly by default; quarterly for "eligible CCPCs" parallel to federal Section 157(1.1)–(1.5) ITA
Instalment due dateLast day of each month (or quarter)
NEQ — Enterprise NumberQuebec Enterprise Number — registration via the Registraire des entreprises du Québec required for all corporations with a Quebec PE
Late filing penaltyMinimum penalty regime under Sections 1045, 1049 QTA — generally 5% of unpaid tax plus 1% per month up to 12 months (parallel to federal Section 162(1))
Statute of limitations (reassessment)3 years from the original notice of assessment for CCPCs; 4 years for other corporations (Section 1010 QTA) — extended for misrepresentation or neglect
Skill version1.0
Validated byPending — sign-off by Quebec CPA with corporate tax expertise

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About

Use this skill whenever asked about Quebec corporate income tax. Quebec administers its own CIT (separate from federal T2) via the CO-17 return filed with Revenu Québec under the Quebec Taxation Act (Loi sur les impôts, RLRQ c. I-3). Trigger on phrases like "Quebec CIT", "CO-17", "QC corporate tax", "Quebec small business deduction SBD", "Quebec tax credits R&D Quebec", "C3i credit", "C3I investment credit", "Crédit d'impôt à l'investissement et l'innovation", "Revenu Québec corporate", "déclaration de revenus des sociétés", "Quebec corporate instalments", "taxable income earned in Quebec", "TIEQ", "Quebec allocation", "Quebec compensation tax financial institutions", "Quebec CCPC rate", or "Quebec 5500 hour test". Covers the **11.5% Quebec general CIT rate** under Section 771 of the Quebec Taxation Act (combined with federal 15% = 26.5% combined), the **Quebec Small Business Deduction (SBD)** reducing the rate to **3.2% on the first $500,000** of active business income for Canadian-Controlled Private Corporations (CCPC) subject to the **5,500 paid-hours test** under Section 771.1, the **C3i credit (Crédit d'impôt à l'investissement et l'innovation)** for qualified property at rates of 20-40% depending on territorial zone (high-economic-vitality vs. intermediate vs. low-economic-vitality regions), the Quebec R&D tax credit stack on top of federal SR&ED, and the CO-17 filing mechanics including 6-month filing deadline, 2-month payment deadline, instalment regime, and coordination with the federal T2 return. Out of scope: federal T2 corporate tax (use `canada-corporate-tax-t2`), Quebec personal income tax TP-1 (use `qc-individual-return`), Quebec QST (use `qc-qst-return`), Quebec compensation tax on financial institutions, mining duties under the Mining Tax Act, Quebec source deductions and employer contributions (TPZ-1015), insurance premium tax, logging tax, and specialised sector regimes (cooperatives, mutual funds, insurance corporations). ALWAYS read this skill alongside `canada-formation` and the federal CIT files (`canada-corporate-tax-t2`) — Quebec CIT is computed in parallel with, not as a substitute for, federal CIT.

CanadaTax year 2025

Full guide

Quebec — Corporate Income Tax (CO-17) — Skill v1.0

Produced by OpenAccountants (openaccountants.com)

This skill is for informational purposes only and does not constitute tax, legal, or financial advice. All outputs must be reviewed and signed off by a qualified Quebec tax adviser (CPA auditeur or CPA with Quebec corporate tax expertise, or a tax lawyer admitted to the Barreau du Québec with corporate tax specialisation) before filing or acting upon. Quebec administers its CIT separately from the federal government — the CRA does not collect Quebec corporate tax. The latest verified version of this skill is maintained at openaccountants.com.


Section 1 — Quick Reference

FieldValue
ProvinceQuebec (Québec)
TaxCorporate Income Tax — Impôt sur le revenu des sociétés
CurrencyCAD
Tax authorityRevenu Québec (Agence du revenu du Québec — ARQ)
Primary legislationLoi sur les impôts, RLRQ c. I-3 (Quebec Taxation Act, "QTA")
Companion administration ActLoi sur l'administration fiscale, RLRQ c. A-6.002 (Tax Administration Act)
Federal interactionSeparate return — Quebec does NOT join the federal T2 collection agreement. A corporation with a permanent establishment in Quebec files both the federal T2 (with CRA) and the CO-17 (with Revenu Québec).
Quebec general CIT rate11.5% of taxable income earned in Quebec (Section 771 QTA) — combined with federal 15% net rate = 26.5% combined general rate
Quebec Small Business Deduction (SBD) rate3.2% on the first $500,000 of active business income for CCPCs that pass the paid-hours test — combined with federal 9% small-business rate = 12.2% combined small-business rate
SBD paid-hours threshold (full rate)≥ 5,500 paid hours in the taxation year (or preceding year) — Section 771.1 QTA
SBD paid-hours phase-outLinear reduction between 5,000 and 5,500 paid hours; no SBD if < 5,000 hours (with limited exception for primary-sector and manufacturing activities)
SBD business limit$500,000 — aligned with federal small-business limit; reduced if taxable capital employed in Canada is between $10M and $50M (parallel to federal grind)
C3i credit rate (high-vitality zones)20% of qualified investment in qualified property (e.g., Montreal, Quebec City urban areas)
C3i credit rate (intermediate zones)30% of qualified investment
C3i credit rate (low-vitality / resource regions)40% of qualified investment (e.g., Gaspésie–Îles-de-la-Madeleine, Bas-Saint-Laurent, Côte-Nord, Nord-du-Québec, Saguenay–Lac-Saint-Jean designated portions)
C3i credit refundabilityFully refundable for CCPCs with assets ≤ $50M; partially refundable on a sliding scale up to $100M; non-refundable above $100M
R&D credit (Quebec)Quebec stacks on top of the federal SR&ED ITC. Refundable for CCPCs. Multiple components: salaries (general rate up to 30% for SMEs sliding to 14% for large), university / public research contracts, private partnership pre-competitive research, fees paid to eligible research consortia
Capital gains inclusion50% for gains realised on or before 24 June 2024; 66.67% thereafter — Quebec harmonised with the federal change announced in the 2024 federal Budget and confirmed in the Quebec 2024–25 Information Bulletins
Compensation tax on financial institutionsSeparate tax under Title IV.1.1 QTA (out of scope of this skill)
Allocation of taxable income"Taxable income earned in Quebec" (TIEQ) — based on the two-factor formula (50% wages + 50% gross revenue from a Quebec PE) — Section 771R QTA and Regulation 771R
Annual returnForm CO-17 — Déclaration de revenus des sociétés
CO-17 filing deadline6 months after the end of the taxation year (parallel to federal T2 — Section 1000 QTA)
Payment deadline (balance due)2 months after year-end for general corporations; 3 months for CCPCs claiming the SBD and meeting the federal CCPC payment-extension criteria (Section 1027 QTA — harmonised with federal Section 157(1)(b) ITA)
Instalments — frequencyMonthly by default; quarterly for "eligible CCPCs" parallel to federal Section 157(1.1)–(1.5) ITA
Instalment due dateLast day of each month (or quarter)
NEQ — Enterprise NumberQuebec Enterprise Number — registration via the Registraire des entreprises du Québec required for all corporations with a Quebec PE
Late filing penaltyMinimum penalty regime under Sections 1045, 1049 QTA — generally 5% of unpaid tax plus 1% per month up to 12 months (parallel to federal Section 162(1))
Statute of limitations (reassessment)3 years from the original notice of assessment for CCPCs; 4 years for other corporations (Section 1010 QTA) — extended for misrepresentation or neglect
Skill version1.0
Validated byPending — sign-off by Quebec CPA with corporate tax expertise

1.1 Conservative Defaults (Snapshot)

AmbiguityDefault
Quebec PE existence unclearAssume PE exists if any employee, office, fixed place, agent with contracting authority, or substantial equipment in Quebec — Section 12 QTA
TIEQ allocation factors unclearAllocate 100% to Quebec if any doubt about the second-province factor; never under-allocate to Quebec
SBD paid-hours unclearDefault to NO SBD (apply 11.5% general rate) until time-tracking records confirm ≥ 5,500 hours
CCPC status unclearDefault to non-CCPC (no SBD); confirm with federal T2 CCPC determination first
C3i zone classification unclearDefault to 20% high-vitality rate (lowest) until zone confirmed against Annex II of the Taxation Act regulations
C3i property qualification unclearDo not claim until qualified-property test confirmed against Section 1029.8.36.166.40 et seq. QTA
Refundability of credits unclearDefault to non-refundable treatment until taxable-capital threshold verified
Quebec R&D harmonised with federal SR&EDQuebec rules are separate — never assume federal SR&ED qualification automatically qualifies for the Quebec credit
Capital gains inclusion rate (transitional 2024 year)Apply 50% pre-25-June and 66.67% post-24-June per the federal split unless the proposed federal deferral changes the harmonised position

Section 2 — Required Inputs and Refusal Catalogue

2.1 Required Inputs

Minimum viable

  • Signed statutory financial statements for the taxation year (typically ASPE Part II or IFRS).
  • Prior-year CO-17 and prior-year federal T2 (Schedule 5 — Provincial Allocation).
  • Confirmation of Quebec permanent establishment (address, employees, fixed place of business).
  • Confirmation of CCPC status (control test from federal T2).
  • For SBD claim: time-tracking records establishing paid hours by employee for the year and for the preceding year.

Recommended

  • General ledger trial balance reconciled to financial statements.
  • Federal T2 Schedule 5 (allocation of taxable income to provinces) — Quebec's TIEQ should reconcile to T2 Schedule 5 Quebec column with adjustments.
  • Federal Schedule 1 (reconciliation of net income for tax purposes) — Quebec adopts the federal starting point with QTA-specific add-backs.
  • Capital allowance schedule (Quebec generally harmonises with federal CCA classes but watch for non-harmonised items — see Section 3.7).
  • C3i investment register (asset descriptions, acquisition dates, zone, qualified-property test documentation).
  • Quebec R&D documentation: payroll allocation, contract research invoices, technical reports per Quebec rules.
  • Instalment-payment history (Revenu Québec online services printout).
  • NEQ confirmation from the Registraire des entreprises.

Ideal

  • Audited financial statements.
  • Transfer pricing local file if associated with non-resident parties (Quebec generally relies on federal Section 247 ITA but the Minister of Revenue may reassess under Section 421 QTA).
  • Allocation-formula worksheet showing two-factor calculation per province.
  • Documentation of any inter-provincial corporate income tax planning (Quebec is aggressive on income-shifting reassessments under Section 7.4 et seq. QTA — the general anti-avoidance rule).
  • Prior Revenu Québec audit / verification correspondence.
  • Prior-year Form CO-1029.8.36.II ("Demande de crédit C3i") confirmations.

HARD STOP if minimum is missing. Without statutory accounts and the prior-year CO-17 and T2 Schedule 5, no CO-17 computation may be produced.

2.2 Refusal Catalogue

R-QC-CT-1 — Non-Quebec PE. Section 12 QTA permanent-establishment test required first. Corporations without a Quebec PE do not file CO-17. Where PE existence is contested, escalate to a Quebec tax lawyer.

R-QC-CT-2 — Compensation tax on financial institutions. Banks, insurance corporations, savings and credit unions and other "financial institutions" defined under Title IV.1.1 QTA file separate compensation-tax computations. Out of scope.

R-QC-CT-3 — Mining and natural-resource regimes. Quebec mining duties under the Mining Tax Act (RLRQ c. I-0.4) and logging tax under Title IV QTA are separate from CO-17 CIT — out of scope.

R-QC-CT-4 — Cooperatives and mutual insurance. Tax-exempt cooperatives under Section 985 QTA, life-insurance corporations, and mutual fund corporations have specialised computations — out of scope.

R-QC-CT-5 — Inter-provincial income shifting / Quebec GAAR. Section 1079.13.1 QTA general anti-avoidance rule and Section 7.4 et seq. recharacterisation rules apply aggressively to inter-provincial allocation planning. Do NOT advise on transactions that primarily shift TIEQ out of Quebec. Escalate to Quebec corporate tax counsel.

R-QC-CT-6 — Cross-skill scope. Federal T2 → canada-corporate-tax-t2. Quebec personal income tax → qc-individual-return. Quebec sales tax (QST) → qc-qst-return. Quebec source deductions / employer contributions (RREGOP, FSS, RQAP) → separate skill. GST/HST → canada-gst-hst.

R-QC-CT-7 — Revenu Québec verification or audit. Active Revenu Québec audit, vérification, or objection — do not draft positions without engaged Quebec tax counsel or CPA representative under power of attorney (Form MR-69 — Procuration).

R-QC-CT-8 — Continuance or amalgamation across jurisdictions. Corporate continuance into Quebec under the Business Corporations Act (RLRQ c. S-31.1) or amalgamations involving Quebec corporations have CO-17 short-year and acquisition-of-control consequences — escalate to specialist.

R-QC-CT-9 — Foreign-affiliate / FAPI Quebec layer. Quebec generally piggy-backs on federal FAPI inclusion but with separate computational quirks under Section 580 et seq. QTA. Specialist sign-off required.


Section 3 — Tier 1 Rules (Standard CO-17 Computation)

3.1 The 11.5% General CIT Rate — Section 771 QTA

Legislation: Section 771(1) QTA sets the standard Quebec CIT rate at 11.5% on taxable income earned in Quebec (TIEQ).

Quebec CIT (general) = 11.5% × TIEQ

Combined federal + provincial rate (general):

Federal net rate           15.00%
Quebec general rate        11.50%
                           ------
Combined general rate      26.50%

The federal general rate of 15% is the post-provincial-abatement rate. Quebec corporations claim the federal 10% provincial abatement under Section 124 ITA because Quebec is a non-agreement province.

3.2 Quebec Small Business Deduction (SBD) — Section 771.1 QTA

Mechanism: A Canadian-Controlled Private Corporation (CCPC) — as defined under federal Section 125(7) ITA and incorporated by reference into the QTA — may claim a deduction reducing the Quebec CIT rate on its active business income (ABI) earned in Quebec, up to the $500,000 business limit, from 11.5% down to 3.2%.

Quebec CIT (SBD rate) = 3.2% × min(ABI in Quebec, $500,000 × SBD entitlement %)

Combined federal + provincial rate (SBD):

Federal small-business rate    9.00%
Quebec SBD rate                3.20%
                              ------
Combined SBD rate             12.20%

3.2.1 Paid-Hours Test — the Quebec-Specific Restriction

Quebec layered a paid-hours qualification test on top of the federal CCPC + ABI rules. This test does not exist federally and is the most material Quebec-specific divergence.

Paid hours in year (or preceding year)SBD entitlement
≥ 5,500 hoursFull SBD — rate reduces to 3.2%
5,000 — 5,500 hoursLinear phase-down — entitlement reduced proportionally
< 5,000 hoursNO SBD — full 11.5% rate applies (with primary-sector / manufacturing exception below)

Phase-out formula:

SBD entitlement % = (Paid hours − 5,000) / 500   (capped at 100%)
                  = 0 if paid hours ≤ 5,000
                  = 100% if paid hours ≥ 5,500

Counting paid hours (Section 771.1 paragraph c QTA):

  • Each employee's paid hours for the year (including paid leave) count.
  • Hours of shareholder-employees count subject to a maximum 40 hours/week per shareholder (anti-abuse).
  • Hours from sub-contractors do NOT count.
  • Hours for the preceding taxation year may be used in lieu (so a new corporation does not lose SBD in its first year if it ramps up in year 2 — but year-1 itself defaults to no SBD unless the test is met in the year).

Primary-sector and manufacturing exception (Section 771.1(2.1) QTA): Corporations whose proportion of activities in the primary sector (agriculture, fishing, forestry) or manufacturing-and-processing exceeds 50% may claim the SBD without satisfying the paid-hours test, but at a reduced rate scaled to the sector proportion. Reviewer must verify the activity-sector classification.

3.2.2 Taxable-Capital Grind on the Business Limit

Parallel to federal Section 125(5.1) ITA, the $500,000 business limit is reduced where the taxable capital employed in Canada of the CCPC (and associated corporations) is between $10 million and $50 million, with full elimination above $50M. Quebec adopts the same grind through Section 771.2.1.4 QTA cross-referencing the federal computation.

Reduced business limit =
  $500,000 − [$500,000 × (Taxable capital − $10M) / $40M]

3.2.3 Associated-Corporation Allocation

The $500,000 business limit must be shared among associated corporations (Section 1138 et seq. QTA — associated-corporation rules — parallel to federal Section 256 ITA). A Quebec-specific allocation agreement (Form CO-771.1.3) must be filed when associated corporations share the limit.

3.3 Taxable Income Earned in Quebec (TIEQ) — Section 771R QTA and Regulation 771R

The two-factor formula allocates a corporation's total taxable income (computed on federal lines) between provinces where it has a PE:

TIEQ = Total taxable income × Quebec allocation factor

Quebec allocation factor = ½ × (Wages Quebec / Total wages)
                         + ½ × (Gross revenue from Quebec PE / Total gross revenue)

Two-factor specifics:

  • Wages factor: Salaries, wages, and other remuneration paid to employees of the Quebec PE during the year. Includes paid commissions but excludes payments to sub-contractors.
  • Gross revenue factor: Gross revenue reasonably attributable to the Quebec PE — generally based on the customer location for sales of goods, location of services performed for services, and location of the borrower for interest (with specific carve-outs in Regulation 771R).

No-Quebec-PE-corporation: If the corporation has no Quebec PE, TIEQ = 0 and no CO-17 is filed (subject to NEQ-registration consequences which may exist independently).

Single-PE corporation: If 100% of activity is in Quebec, TIEQ = total federal taxable income (no allocation).

Multi-jurisdiction corporation: Reconcile with federal T2 Schedule 5 (Allocation of Taxable Income to Provinces and Territories). Quebec uses the same two-factor formula as the federal Schedule 5 allocation but enforces its own audit standard for the Quebec figures.

Conservative default: Where the allocation factors are uncertain, allocate 100% to Quebec (no under-allocation). The Quebec GAAR (Section 1079.13.1) and the Minister's broad discretion under Section 421 QTA make under-allocation a high-risk position.

3.4 Starting Point — Federal Taxable Income with QTA Adjustments

Quebec uses federal taxable income (as computed on federal T2 Schedule 1) as the starting point, then applies Quebec-specific adjustments via the CO-17 Schedule:

Adjustment directionCommon items
Add to federal taxable incomeFederal CCA exceeding Quebec CCA (limited cases of non-harmonisation); federal deductions not allowed by Quebec (e.g., portion of federal R&D ITC additions that Quebec computes differently); federal items the QTA explicitly does not adopt
Subtract from federal taxable incomeQuebec-only deductions (e.g., the Quebec-only deduction for foreign specialists under Section 737.18.6 QTA, the deduction for foreign researchers, the IFC deduction for international financial centres — all out of scope for Tier 1)
Allocate via TIEQ factorThe adjusted taxable income is allocated to Quebec via the two-factor formula in 3.3

3.5 Capital Gains Inclusion — Harmonised with Federal

Quebec harmonised with the federal capital gains inclusion rate change announced in the 2024 federal Budget (Information Bulletins 2024-7, 2024-9):

PeriodInclusion rate
Gains realised on or before 24 June 202450%
Gains realised after 24 June 202466.67%

Important uncertainty (2025): The federal government deferred and ultimately did not legislate the 66.67% rate before Parliament was prorogued. The CRA administrative position revised in early 2025 reverted to 50%. Quebec's harmonisation position is contingent on federal legislation — reviewer must verify the final harmonised position at the time of filing. Information Bulletin updates supersede this skill on this point.

Conservative default: Apply the 50% inclusion rate for all gains pending final legislative outcome, with explicit reviewer note on potential top-up.

3.6 Refundable Dividend Tax (RDTOH / GRIP / LRIP — Quebec Mechanics)

Quebec harmonises with the federal RDTOH (Refundable Dividend Tax on Hand) and dividend refund mechanics under Sections 1106–1106.11 QTA. The integration rates differ slightly because Quebec dividends are taxed at provincial individual rates, but the corporate-level mechanics mirror federal Section 129 ITA.

Quebec dividend refund (Section 1106 QTA): A private corporation that pays taxable dividends receives a refund of its previously paid Quebec Part-IV-equivalent tax. Quebec does NOT have a separate Part IV tax — the federal Part IV applies — but Quebec has a parallel "impôt en main remboursable au titre de dividendes" (IMRTD) computation aligned with federal RDTOH-eligible / non-eligible split (since the federal 2018 split).

Conservative default: Reconcile Quebec IMRTD beginning balance to federal RDTOH eligible/non-eligible balances; flag any discrepancy.

3.7 Capital Cost Allowance — Generally Harmonised

Quebec generally adopts the federal CCA classes and rates by reference in Section 130 et seq. QTA. Non-harmonised items include:

  • Quebec-specific accelerated depreciation for certain manufacturing and IT equipment in low-vitality regions (Sections 130R and following of the Regulation).
  • Federal Accelerated Investment Incentive (AII) — Quebec harmonised effective for property acquired after 20 March 2018; same phase-out schedule.
  • Federal immediate expensing for CCPCs (Section 1100(0.1) ITR) — Quebec harmonised within $1.5M annual cap.
  • Bonus depreciation interactions with the C3i credit (Section 3.8 below) require careful CCA-base reduction tracking.

3.8 C3i Credit (Crédit d'impôt à l'investissement et l'innovation) — Section 1029.8.36.166.40 et seq. QTA

The C3i is the principal Quebec refundable investment credit, designed to encourage capital investment outside the Montreal–Quebec City corridor. It replaced the older "Crédit d'impôt à l'investissement" (CII) regime in 2020 and was extended (Bulletin 2024-9) to property acquired before 1 January 2030.

3.8.1 Qualified Property

Qualified property includes:

  • Manufacturing and processing equipment (Class 53 federally).
  • Computer hardware and certain software (Class 50).
  • Ore-processing equipment.
  • Equipment used in the processing of green hydrogen, biofuels, and other clean-energy applications (added by recent Information Bulletins).
  • Property must be new (or used but never previously used for an income-earning purpose by a Quebec-related party).
  • Property must be used principally in Quebec in the course of carrying on a business.

3.8.2 Credit Rates by Territorial Zone

The credit rate depends on where the qualified property is used, classified into three zones under Annex II of the QTA regulations:

ZoneExamplesCredit rate
High-economic-vitality zoneGreater Montreal CMA, Greater Quebec City CMA20%
Intermediate zoneMost regions outside the two CMAs but not designated as low-vitality30%
Low-economic-vitality / resource zonesDesignated portions of Gaspésie–Îles-de-la-Madeleine, Bas-Saint-Laurent, Côte-Nord, Nord-du-Québec, Saguenay–Lac-Saint-Jean, designated RCMs of Outaouais, Mauricie, Abitibi-Témiscamingue40%

3.8.3 Excluded Threshold and Cumulative Limit

  • Excluded threshold: The first $5,000 per asset does not qualify (Section 1029.8.36.166.43 QTA).
  • Cumulative limit: $100 million per qualified-property over any 5-year period across associated corporations.

3.8.4 Refundability — Sliding Scale

Total assets (corporation + associated)Refundability
≤ $50 millionFully refundable
$50M — $100MSliding-scale refundability (linear)
> $100 millionNon-refundable — can only be applied against Quebec CIT, with 20-year carry-forward and 3-year carry-back

3.8.5 CCA Base Reduction

The C3i credit reduces the CCA base of the qualified property under Section 130R134 of the Regulation (parallel to federal Section 13(7.1) ITR for investment tax credits).

3.8.6 Filing — Form CO-1029.8.36.II

The C3i is claimed via Form CO-1029.8.36.II filed with the CO-17. Supporting documentation includes the qualified-property asset register, zone verification, and proof of "principal use" in Quebec.

Conservative default: Do not claim C3i without (i) the property-acquisition invoice on file, (ii) zone verification against the Annex II list current at the date of acquisition, and (iii) confirmation the property is used principally (> 50%) in Quebec in the course of a business.

3.9 Quebec R&D Tax Credits — Stack on Top of Federal SR&ED

Quebec maintains a parallel R&D credit regime that stacks on top of the federal Scientific Research and Experimental Development (SR&ED) Investment Tax Credit. Quebec's regime is significantly more complex than the federal regime.

3.9.1 Core Salary Component — Section 1029.7 et seq. QTA

ComponentRate (CCPC SMEs)Rate (large corporations)
In-house R&D salaries (general)Sliding 30% → 14% based on assets (≤$50M → ≥$75M)14%
Subcontracted R&D (eligible subcontractor)Same rate as above on 50% of contract valueSame

3.9.2 University and Public Research Contracts — Section 1029.8.1 QTA

Credit on payments to an eligible university entity or eligible public research centre at 30% (CCPC SMEs) or 14% (large corporations).

3.9.3 Private Pre-Competitive Research Partnerships — Section 1029.8.6 QTA

Credit on payments under a recognised pre-competitive research partnership between two or more unrelated taxpayers, at 30% / 14%.

3.9.4 Fees to Eligible Research Consortia — Section 1029.8.9 QTA

Credit on fees paid to an eligible research consortium (e.g., MITACS, certain CRIAQ programs), generally at 30% / 14%.

3.9.5 Refundability and Federal Stacking

  • For CCPC SMEs, the Quebec R&D credit is fully refundable even if exceeding tax payable.
  • Federal SR&ED ITC and Quebec R&D credit are both claimed — Quebec credit reduces the SR&ED expenditure base on the federal computation (Section 127(18) ITA reduces the federal ITC base by government assistance, and the Quebec credit is treated as government assistance).
  • Net combined Quebec + federal benefit on a $100,000 R&D salary spend for a CCPC SME can approach 50%+ depending on activity classification.

Conservative default: Do not claim Quebec R&D credits without (i) federal SR&ED filing prepared and reviewed first (Quebec follows federal qualification heavily), (ii) contemporaneous technical narrative meeting both federal and Quebec audit-readiness standards, and (iii) project-by-project allocation between salary, subcontract, university, and consortium components.

3.10 Computation Template — CO-17 Bottom Line

StepItem
1Federal taxable income (from T2 Schedule 1)
2Quebec-specific adjustments (Section 3.4) → Adjusted taxable income
3TIEQ = Adjusted taxable income × Quebec allocation factor (two-factor formula, Section 3.3)
4Apply 11.5% general rate to TIEQ
5Compute SBD deduction (3.2% rate on first $500K of ABI in Quebec, subject to paid-hours test, taxable-capital grind, associated-corporation sharing)
6Compute C3i credit (Form CO-1029.8.36.II) — apply zone rate to qualified investment, subject to $5K threshold and cumulative limit
7Compute Quebec R&D credits (per component) — adjust federal SR&ED base for Quebec credit treated as government assistance
8Apply other credits (foreign tax credit Section 772 QTA, investment tax credits carried forward, etc.)
9Compute IMRTD beginning, additions, dividend refund — reconcile to federal RDTOH
10Determine balance due / refund, instalment-deficiency interest (Section 1037 QTA), penalties

Section 4 — Deductible and Non-Deductible Expenses (Quebec-Specific)

4.1 General Deductibility — Section 128 QTA

Quebec generally adopts the federal "income from a business" computation under Sections 9–37 ITA via Sections 128–168 QTA. The starting point is therefore the federal Schedule 1 reconciliation.

4.2 Quebec Non-Deductible / Restricted Items

ItemReference / Notes
50% of meals and entertainmentFederal 50% applies. Quebec adds a further restriction capping deductibility at a percentage of gross revenue (Section 421.1 QTA — 1.25% of sales for sales below $32,500; 2% on sales $32,500–$51,999; 1.25% for $52,000+ — see Annex of Section 421.1 for the sliding scale). Reviewer must apply the additional cap.
Membership duesQuebec generally aligns with federal restriction (Section 421 QTA) — recreational club dues non-deductible.
Penalties and finesNon-deductible per Section 144 QTA (parallel to federal Section 67.6 ITA).
Bottle-deposit and certain environmental contributionsTreatment matches federal — generally deductible when paid.
Gifts to officers / shareholdersDistribution recharacterisation risk under Section 111 QTA (parallel to federal Section 15 / 246 ITA shareholder-benefit rules).
Excessive shareholder remunerationQuebec applies Sections 420–422 QTA reasonableness test — parallel to federal Section 67 ITA.

4.3 Quebec-Only Deductions (Out of Tier 1)

DeductionReferenceNotes
Foreign specialist tax holidaySection 737.18.6 QTA5-year graduated deduction for foreign-specialist remuneration
Foreign researcherSection 737.18.14 QTASimilar to specialist regime
International Financial Centre (IFC)Section 771.1.1 QTASpecialised regime for qualified IFC corporations in Montreal
Tax holiday for large investment projects (LIP)Section 737.18.17 et seq. QTAUp to 15-year tax holiday for projects ≥ $100M qualifying investment

These regimes require specialist sign-off — out of scope for Tier 1.


Section 5 — Tier 2 Catalogue (Reviewer Judgement Required)

5.1 Allocation-Formula Audit Exposure

Revenu Québec is historically aggressive on TIEQ allocation reassessments — particularly on the wages factor (related-party payroll arrangements, employees travelling between provinces, secondments) and on the gross-revenue factor (services rendered partly inside and outside Quebec, royalty allocation, software licensing source). Reviewer must scrutinise the federal Schedule 5 numbers against the Quebec allocation evidence.

5.2 Quebec GAAR — Section 1079.13.1 QTA

Quebec's general anti-avoidance rule mirrors federal Section 245 ITA but is administered with a notably broader interpretation, especially against inter-provincial income shifting. Reviewer must screen any transaction whose primary purpose is to reduce TIEQ.

5.3 Acquisition-of-Control and Section 736.0.2 QTA

Acquisition-of-control triggers loss-streaming and CCA-class restrictions parallel to federal Section 111(5) ITA. Quebec's separate filing requires a separate streaming computation, and short taxation years on AOC are common.

5.4 Associated-Corporation Designations — Sections 1138–1142 QTA

The associated-corporation rules are critical for SBD limit-sharing and the C3i $100M cumulative limit. Reviewer must verify corporate structure annually because de-facto control tests (Section 1142.1 QTA — parallel to federal Section 256(5.1) ITA) are easily missed in informal structures.

5.5 Foreign Tax Credit — Section 772 QTA

Quebec grants a separate foreign tax credit on the Quebec proportion of foreign-source income. The mechanics are parallel to but distinct from federal Section 126 ITA — reviewer should reconcile, not assume identity.

5.6 C3i Eligible Property — Borderline Cases

The qualified-property test (Section 1029.8.36.166.40 et seq.) excludes many borderline assets including:

  • Buildings (excluded unless qualifying as M&P building, narrow category).
  • Vehicles (most road vehicles excluded).
  • Software developed in-house (specific exclusion — though acquired off-the-shelf software may qualify).
  • Property leased to others (lessor-lessee rules in Section 1029.8.36.166.42 require careful analysis).

Reviewer must verify each material asset against the qualified-property test.

5.7 Quebec Tax Holidays — LIP, Manufacturing Innovation, Tertiary R&D

Out of scope for Tier 1 — but flag for specialist engagement where the corporation appears to qualify (e.g., new project ≥ $100M, AI / quantum / aerospace cluster, designated science-park location).


Section 6 — Worked Example

6.1 Montreal Tech CCPC — $2M Revenue, $400K Active Business Income

Facts:

  • TechMTL Inc., incorporated in Quebec, head office and sole PE in Montreal.
  • CCPC for federal purposes (confirmed on federal T2 Schedule 23).
  • Taxation year ending 31 December 2025.
  • Gross revenue: $2,000,000 (all Quebec sales).
  • Net income for tax purposes (federal Schedule 1): $400,000 — all active business income.
  • No non-Quebec PE; TIEQ = 100% of taxable income.
  • Total wages: $700,000 paid to 8 full-time employees; total paid hours for the year: 15,200 (well above the 5,500 threshold).
  • Taxable capital employed in Canada: $4M (below the $10M grind threshold — full SBD).
  • No associated corporations.
  • C3i: TechMTL acquired qualified manufacturing equipment costing $200,000 during the year, used principally at the Montreal facility (high-vitality zone → 20% rate). $5,000 excluded threshold applies per asset.
  • Federal SR&ED qualifying expenditures: $80,000 (in-house salaries). Quebec R&D credit on the same $80,000 at 30% (CCPC SME rate, assets under $50M).

Federal T2 (high-level reconciliation):

Federal taxable income                      400,000
Federal general tax @ 38%                   152,000
Less: Federal abatement 10% × 400,000       (40,000)
Less: Federal SBD 19% × 400,000             (76,000)
                                            -------
Federal Part I tax                           36,000
Less: Federal SR&ED ITC 15% × 80,000        (12,000)
[refundable for CCPC SME]
                                            -------
Net federal CIT                              24,000

Quebec CO-17 computation:

Step 1 — Starting taxable income
Federal taxable income                            400,000
Quebec adjustments                                      0
                                                  -------
Adjusted taxable income                           400,000

Step 2 — TIEQ allocation
Quebec allocation factor = 100% (sole PE in QC)
TIEQ                                              400,000

Step 3 — Apply general rate
Quebec CIT @ 11.5% × 400,000                       46,000

Step 4 — Quebec SBD
Paid hours check: 15,200 ≥ 5,500    → full SBD
Active business income in Quebec:    400,000
Business limit (no grind, no
  associated corp sharing):          500,000
ABI subject to SBD:                  400,000
Rate reduction: 11.5% − 3.2% = 8.3%
SBD deduction = 8.3% × 400,000                    (33,200)
                                                  -------
Quebec CIT after SBD                               12,800
[Effective rate: 3.2% × 400,000 = 12,800 ✓]

Step 5 — C3i credit (Form CO-1029.8.36.II)
Qualified investment per asset:      200,000
Less: $5,000 exclusion threshold:     (5,000)
Eligible C3i base:                   195,000
Rate (high-vitality zone):              20%
C3i credit                                        (39,000)
[Fully refundable — TechMTL assets < $50M]

Step 6 — Quebec R&D credit
Eligible salaries:                    80,000
Adjustment: federal SR&ED ITC treated as
  government assistance reduces federal
  expenditure base (already in federal calc);
  Quebec applies its rate to the Quebec
  qualifying base — assume parallel $80,000.
Rate (CCPC SME, assets < $50M):         30%
Quebec R&D credit                                 (24,000)
[Fully refundable]
                                                  -------
Quebec CIT / (refund) before instalments         (50,200)

Combined federal + Quebec position
Federal Part I net tax                             24,000
Federal SR&ED refund          [already netted]
Quebec CIT (refund)                               (50,200)
                                                  -------
Net Canadian + Quebec tax (refund)                (26,200)

Combined effective rate on $400,000 ABI before credits:

Federal 9% + Quebec 3.2% = 12.2% × 400,000 = 48,800

Less credits:
  Federal SR&ED 12,000
  Quebec C3i      39,000
  Quebec R&D      24,000
                 -------
  Total credits   75,000

The credits exceed the combined CIT — TechMTL receives a net refund of $26,200 for the year (subject to instalment-deficiency interest if instalments were not paid on schedule; see Section 7).

Filing:

  • Federal T2 with CRA by 30 June 2026 (6 months after FY-end).
  • Quebec CO-17 with Revenu Québec by 30 June 2026 (6 months after FY-end).
  • Payment of CO-17 balance: technically due 28 February 2026 (2 months after year-end) for non-SBD payment timing, or 31 March 2026 (3 months) for SBD-qualifying CCPCs — in this case TechMTL is refund-position so no payment due, but instalment reconciliation still applies.
  • Form CO-1029.8.36.II (C3i) filed with the CO-17.
  • Form CO-1029.7 (Quebec R&D salary credit) filed with the CO-17.

Conservative default applied: Figures illustrative; reviewer must confirm (i) actual paid-hours documentation, (ii) C3i qualified-property classification of the specific equipment acquired, (iii) zone confirmation against Annex II current at acquisition date, (iv) Quebec R&D qualification project-by-project matching federal SR&ED, (v) any associated-corporation status affecting business-limit sharing and C3i cumulative cap.


Section 7 — Filing and Payment Mechanics

7.1 Form CO-17 via Revenu Québec Online Services

The CO-17 — Déclaration de revenus des sociétés is filed electronically through Mon dossier pour les entreprises (the Revenu Québec online portal) or via certified tax-preparation software (most Canadian tax software supports CO-17 alongside T2).

Key panels:

PanelContent
IdentificationNEQ, name, fiscal year, address of principal Quebec PE
Allocation of taxable incomeTwo-factor formula computation; reconcile to federal Schedule 5
Income tax computationFederal taxable income, Quebec adjustments, TIEQ, rate application
Small Business DeductionPaid-hours test, business limit, associated-corporation allocation
Refundable creditsC3i (CO-1029.8.36.II), R&D (CO-1029.7 / 1029.8.1 / 1029.8.6 / 1029.8.9), other
Non-refundable creditsForeign tax credit (Section 772), carry-forward credits
Dividend refund / IMRTDSection 1106 reconciliation
InstalmentsReconciliation of instalments paid with assessed liability
Balance due / refundFinal position

7.2 Filing Deadline — Section 1000 QTA

6 months after the end of the taxation year. Parallel to federal T2.

Year-endCO-17 filing deadline
31 December 202530 June 2026
30 June 202631 December 2026
Short year ending 15 April 202515 October 2025

7.3 Payment Deadline — Section 1027 QTA

Balance of CIT is due:

  • 2 months after year-end for general corporations.
  • 3 months after year-end for CCPCs that:
    • Claimed the federal SBD in the year or preceding year, AND
    • Taxable income in the year (with associated corporations) did not exceed the business limit, AND
    • Met the federal Section 157(1)(b) ITA payment-extension criteria.

The 3-month extension is harmonised with federal but Quebec applies its own verification.

7.4 Instalments — Sections 1025–1028 QTA

7.4.1 Threshold for Instalments

Instalments are required where the corporation's Quebec CIT (and certain related Quebec taxes) for the current year or the immediately preceding year is > $3,000.

7.4.2 Monthly Instalments (Default)

For corporations not qualifying for quarterly status:

Each monthly instalment = lower of:

  • 1/12 of estimated current-year Quebec CIT;
  • 1/12 of prior-year Quebec CIT (with safe-harbour reference to "second preceding year" for the first two months).

Due: Last day of each month of the taxation year.

7.4.3 Quarterly Instalments — "Eligible CCPCs"

Parallel to federal Section 157(1.1)–(1.5) ITA, eligible CCPCs may pay quarterly:

Eligibility tests:

  • CCPC throughout the year.
  • Claimed federal SBD in the year or preceding year.
  • Taxable income (current and preceding year, with associated corporations) ≤ $500,000.
  • Taxable capital (current and preceding year, with associated corporations) ≤ $10M.
  • Perfect compliance history (no late filings / payments in past 12 months for designated taxes — Section 1025.1 QTA).

Quarterly instalment = 1/4 of the safer of estimated current-year Quebec CIT or prior-year Quebec CIT.

Due: Last day of each quarter (last days of months 3, 6, 9, 12 of the taxation year).

7.4.4 Instalment-Deficiency Interest — Section 1037 QTA

Interest at the prescribed rate (set quarterly by the Minister; for 2025 generally 8–10% per annum range, parallel to federal) applies to the difference between instalments actually paid and the lesser of estimated current-year or prior-year requirements, computed daily.

Penalty: Additional 50% surcharge on substantial instalment underpayments (Section 1045.2 QTA) where the underpayment exceeds prescribed limits.

7.5 Late Filing and Payment Penalties

InfractionPenalty
Late filing of CO-175% of unpaid Quebec CIT at filing deadline, plus 1% per full month late, up to 12 months — Section 1045 QTA
Repeat late filing (3rd offence in 3 years)10% + 2% per month up to 20 months — Section 1045 QTA
Late payment of CITInterest at the prescribed rate (~8–10% in 2025), daily compounding — Section 28 Tax Administration Act
Failure to file Form CO-1029.8.36.II (C3i) on timeCredit denied — strict filing-deadline rule (often within 12 months of CO-17 filing deadline, but check current Section 1029.8.36.166.45 QTA wording)
Failure to file Form CO-1029.7 (Quebec R&D) on timeCredit denied — strict deadline parallel to federal SR&ED 18-month claim deadline under Section 37(11) ITA
Negligent returnUp to 50% of tax shortfall under Section 1049 QTA
False statement / gross negligenceUp to 50% of tax avoided under Section 1049.5 QTA
Deliberate defaultCriminal prosecution under Section 62 et seq. Tax Administration Act

7.6 Reassessment Period — Section 1010 QTA

Corporation typeReassessment period
CCPC3 years from notice of assessment
Other corporation4 years from notice of assessment
Misrepresentation, neglect, carelessness, wilful default, or fraudNo limit (Section 1010(2)(a) QTA)
Transactions with non-arm's-length non-residents (transfer pricing)7 years (Section 1010(2)(b) QTA — parallel to federal)
To claim a loss / credit carry-backExtended periods per the specific carry-back rules

7.7 Power of Attorney — Form MR-69

To represent a corporation before Revenu Québec, a tax professional must hold a signed Form MR-69 — Procuration, procuration concernant les renseignements fiscaux. The federal RC59 / AUT-01 is not sufficient for Quebec — MR-69 is separate and required.


Section 8 — Conservative Defaults Summary

ItemDefault
Quebec PE existence unclearAssume PE exists if any nexus indicator (Section 12 QTA)
TIEQ allocation uncertainAllocate 100% to Quebec; never under-allocate
Paid-hours test for SBDNo SBD until ≥ 5,500 hours documented
CCPC statusDefault to non-CCPC until federal T2 confirmed
C3i zone classificationDefault to 20% high-vitality rate (most conservative)
C3i qualified-property testDo not claim until line-item asset register matched to qualified-property categories
Refundability testDefault to non-refundable until taxable capital threshold confirmed
Quebec R&DDo not claim without federal SR&ED filing first prepared
Capital gains inclusion rate transitional year50% until federal legislation finalises 66.67%
IMRTD beginning balanceReconcile to federal RDTOH split (eligible / non-eligible)
Associated-corporation statusDefault to associated if any common control, ownership, or de-facto influence — Section 1142.1 QTA
Meals and entertainmentApply federal 50% AND Quebec sales-based cap (Section 421.1)
Foreign specialist / IFC / LIP regimesOut of scope — escalate
InstalmentsPay on safer of prior-year or current-year estimate
Late filingNever strategise — Section 1045 penalty is automatic
Power of attorneyAlways file MR-69 before acting on behalf of a Quebec corporation

Section 9 — Coordination With Federal T2

Quebec CIT and federal CIT are computed on the same accounting starting point (financial statements → Schedule 1 reconciliation → taxable income) but filed separately with two separate authorities (Revenu Québec for CO-17; CRA for T2).

ConceptFederal (T2)Quebec (CO-17)Coordination point
Net income per accountsSameSameIdentical starting point
Schedule 1 adjustmentsFederal Schedule 1CO-17 with Quebec-specific add-backsQuebec generally adopts federal Schedule 1 by reference, with QTA-specific overrides
CCA / depreciationFederal Schedule 8Quebec generally harmonised; some accelerated regional incentivesReconcile any non-harmonised items
Taxable incomeFederal Line 360Adjusted federal × Quebec allocation factorFederal Schedule 5 column for Quebec ≈ TIEQ on CO-17
Active business incomeFederal Schedule 7Same definition by referenceReconcile
CCPC statusFederal Schedule 23 / 49Same definition (Section 1117 QTA references federal 125(7) ITA)Reconcile
Small business deductionFederal 19% on first $500K → 9% netQuebec 3.2% on first $500K subject to paid-hours testQuebec adds paid-hours layer
RDTOHFederal eligible / non-eligible RDTOHQuebec IMRTD eligible / non-eligibleReconcile beginning balances; track refunds separately
Foreign tax creditSection 126 ITASection 772 QTAParallel but separate computations
R&DFederal SR&ED ITC (Section 127.1 ITA)Quebec R&D credits (multiple sections, see 3.9)Both claimed; Quebec credit treated as government assistance reducing federal SR&ED base
Capital gains inclusion50% / 66.67% per federal final lawHarmonisedConfirm at filing time
Filing deadline6 months after year-end6 months after year-endSame
Payment deadline2 months (3 months for SBD CCPCs)2 months (3 months for SBD CCPCs)Same
Reassessment period3 years CCPC / 4 years other3 years CCPC / 4 years otherParallel — Section 152(3.1) ITA / Section 1010 QTA
AuthorisationRC59 / AUT-01MR-69 (separate)Cannot rely on federal authorisation

Reconciliation discipline: Reviewer must reconcile the CO-17 to the federal T2 line-by-line on (i) taxable income, (ii) the provincial allocation (Schedule 5 Quebec column), (iii) SBD computation, and (iv) any credit interaction (federal SR&ED ↔ Quebec R&D; federal ITC ↔ C3i where applicable). Discrepancies trigger Revenu Québec / CRA exchange-of-information notices under the Quebec-Canada information sharing protocol.


Section 10 — Cross-References

TopicSkill
Federal Corporate Income Tax (T2)canada-corporate-tax-t2
Canadian corporate formationcanada-formation
Quebec personal income tax (TP-1)qc-individual-return
Quebec Sales Tax (QST / TVQ)qc-qst-return
Federal GST/HSTcanada-gst-hst
Foundation principlesfoundation
Intake checklistintake

Section 11 — Sources

Primary Legislation

  • Loi sur les impôts, RLRQ c. I-3 (Quebec Taxation Act, "QTA") — consolidating Act for Quebec direct taxes.
    • Section 12 — permanent establishment definition.
    • Section 128–168 — computation of income from a business.
    • Section 130 — CCA.
    • Section 144 — non-deductible penalties and fines.
    • Section 421, 421.1 — meals and entertainment, recreational dues.
    • Sections 580 et seq. — foreign affiliates.
    • Section 736.0.2 — acquisition of control.
    • Section 737.18.6, 737.18.14, 737.18.17 — foreign specialist, foreign researcher, large investment projects tax holidays.
    • Section 771 — general 11.5% corporate tax rate.
    • Section 771.1 — Small Business Deduction (SBD) and paid-hours test.
    • Section 771.2.1.4 — business-limit grind on taxable capital.
    • Section 771R / Regulation 771R — TIEQ allocation formula.
    • Section 771.1.1 — IFC deduction.
    • Section 772 — foreign tax credit.
    • Sections 1000–1010 — return filing and reassessment.
    • Section 1010 — reassessment period.
    • Sections 1025–1028 — instalments.
    • Section 1027 — balance due date.
    • Sections 1029.7 et seq. — Quebec R&D salary credit.
    • Sections 1029.8.1, 1029.8.6, 1029.8.9 — Quebec R&D university / partnership / consortium credits.
    • Sections 1029.8.36.166.40 et seq. — C3i (Crédit d'impôt à l'investissement et l'innovation).
    • Sections 1037, 1045, 1045.2, 1049, 1049.5 — interest and penalties.
    • Section 1079.13.1 — Quebec general anti-avoidance rule.
    • Section 1106 — dividend refund (IMRTD).
    • Sections 1117 et seq. — CCPC and private corporation definitions (cross-referenced to federal).
    • Sections 1138–1142.1 — associated corporations.
  • Loi sur l'administration fiscale, RLRQ c. A-6.002 (Tax Administration Act).
    • Section 28 — interest on late payment.
    • Sections 62 et seq. — penal provisions.
  • Regulation respecting the Taxation Act, RLRQ c. I-3, r. 1 — Quebec CCA classes, allocation regulations (especially Regulation 771R), and Annex II (territorial zones for C3i).

Federal Legislation Referenced

  • Income Tax Act, RSC 1985, c. 1 (5th Supp.) ("ITA") — incorporated by reference at multiple points.
    • Section 9–37 — income from a business (starting point).
    • Section 13(7.1), Regulation 1100(0.1) — accelerated/immediate expensing.
    • Section 67.6 — non-deductible penalties and fines.
    • Section 125 — federal Small Business Deduction.
    • Section 126 — federal foreign tax credit.
    • Section 127.1 — federal SR&ED ITC.
    • Section 127(18) — government assistance grinding ITC base.
    • Section 129 — refundable dividend tax (federal RDTOH).
    • Section 157(1), 157(1.1)–(1.5) — federal instalment and CCPC quarterly option.
    • Section 162(1) — federal late-filing penalty.
    • Section 245 — federal GAAR.
    • Section 247 — transfer pricing.
    • Section 256 — associated corporations.

Revenu Québec Bulletins and Information

  • Information Bulletin 2024-7 (June 2024) — harmonisation with federal capital gains inclusion rate increase.
  • Information Bulletin 2024-9 (December 2024) — C3i extension; capital gains update.
  • Tax News (Nouvelles fiscales) — periodic Revenu Québec updates.
  • IN-417 — General Information Concerning the QST and GST/HST (cross-reference only).
  • Guide to the Corporation Income Tax Return — IN-417.A (annual guide accompanying CO-17).
  • IMP. 1029.8.36.166.40 et seq. — Revenu Québec interpretation bulletins on C3i.
  • IMP. 1029.7 et seq. — Revenu Québec interpretation bulletins on Quebec R&D credit.

Forms

  • CO-17 — Déclaration de revenus des sociétés (Corporation Income Tax Return).
  • CO-17.SP — Supplementary information schedules (multiple).
  • CO-771 — SBD computation (where required separately).
  • CO-771.1.3 — Associated corporation business-limit allocation agreement.
  • CO-1029.8.36.II — Demande de crédit d'impôt à l'investissement et l'innovation (C3i).
  • CO-1029.7 / CO-1029.8.1 / CO-1029.8.6 / CO-1029.8.9 — Quebec R&D credit forms by component.
  • MR-69 — Procuration (Power of Attorney for Revenu Québec).
  • TPZ-1015.G — Source deductions guide (cross-reference for payroll-employer obligations).

Other

  • Companies Act / Business Corporations Act (Quebec), RLRQ c. S-31.1 — corporate-law framework.
  • Registraire des entreprises du Québec (REQ) — NEQ registration and annual updating declaration.
  • Quebec-Canada Information Exchange Protocol — bilateral data sharing on corporate returns.

PROHIBITIONS

  • NEVER apply the 11.5% Quebec rate to income earned outside Quebec — use the TIEQ allocation formula.
  • NEVER claim the Quebec SBD without confirming the 5,500 paid-hours test (or the primary-sector / manufacturing exception with documented activity proportion).
  • NEVER assume the federal CCPC determination automatically secures Quebec SBD entitlement — the paid-hours test is additional.
  • NEVER under-allocate TIEQ to Quebec where the allocation factors are ambiguous — Quebec audits are aggressive.
  • NEVER claim the C3i credit without (i) qualified-property test, (ii) zone classification against Annex II current at acquisition date, (iii) principal-use-in-Quebec confirmation.
  • NEVER claim the C3i credit on the first $5,000 of each asset (excluded threshold).
  • NEVER stack C3i and federal ITC on the same expenditure without confirming the federal Section 127(18) ITA government-assistance grind.
  • NEVER claim Quebec R&D credits without preparing the federal SR&ED claim first.
  • NEVER ignore the Quebec sales-revenue cap on meals and entertainment (Section 421.1) — apply on top of the federal 50%.
  • NEVER assume federal CCA is automatically Quebec CCA — verify any non-harmonised regional incentives.
  • NEVER apply the Quebec foreign tax credit as if identical to the federal Section 126 ITA computation — Section 772 QTA has its own mechanics.
  • NEVER bypass the Quebec associated-corporation analysis — Section 1142.1 de-facto control catches informal structures.
  • NEVER plan inter-provincial income shifting to reduce TIEQ without flagging Quebec GAAR risk (Section 1079.13.1).
  • NEVER file late — Section 1045 penalty (5% + 1% per month up to 12 months) is automatic.
  • NEVER miss the 12-month claim window for C3i (Form CO-1029.8.36.II) or the parallel Quebec R&D claim deadlines — late claims are denied outright.
  • NEVER act before Revenu Québec without a signed MR-69 Procuration — federal RC59 is insufficient.
  • NEVER assume RDTOH and IMRTD beginning balances reconcile — verify line-by-line.
  • NEVER advise on Quebec tax holidays (foreign specialist, IFC, LIP) without specialist sign-off.
  • NEVER apply Section 110 / Section 245-equivalent / Section 247-equivalent positions cross-jurisdictionally without engaged Quebec corporate tax counsel.
  • NEVER present figures as definitive — always label as estimates pending CPA / Quebec tax adviser reviewer sign-off.

Disclaimer

This skill and its outputs are for informational and computational purposes only and do not constitute tax, legal, or financial advice. All outputs must be reviewed and signed off by a qualified Quebec tax adviser (CPA auditeur with Quebec corporate tax experience, or a tax lawyer admitted to the Barreau du Québec with corporate tax specialisation) before filing or acting upon. Quebec administers its corporate income tax separately from the federal government — a corporation with a permanent establishment in Quebec must file both the federal T2 with the CRA and the CO-17 with Revenu Québec; these returns are not interchangeable, and reliance on one does not satisfy the other. The latest verified version of this skill is maintained at openaccountants.com.


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