How to compute nb-individual-return for Canada, tax year 2025: rates, thresholds, and step-by-step rules with primary-source citations.
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Standard T1 filing deadline (2025 tax year)
30 April 2026Income Tax Act (Canada), s. 150(1)(d)
T1 filing deadline for self-employed individuals (2025 tax year)
15 June 2026Income Tax Act (Canada), s. 150(1)(d)
Balance owing due date (self-employed)
30 April 2026Income Tax Act (Canada), s. 156.1
NB provincial rate — Band 1 (0 to $49,958)
9.4%New Brunswick Income Tax Act
NB provincial rate — Band 2 ($49,959 to $99,916)
14%New Brunswick Income Tax Act
NB provincial rate — Band 3 ($99,917 to $185,064)
16%New Brunswick Income Tax Act
NB provincial rate — Band 4 (above $185,064)
19.5%New Brunswick Income Tax Act
NB Band 1 upper threshold
$49,958New Brunswick Income Tax Act
NB Band 2 upper threshold
$99,916New Brunswick Income Tax Act
NB Band 3 upper threshold
$185,064New Brunswick Income Tax Act
Harmonized Sales Tax (HST) — total rate
15%Excise Tax Act (Canada); New Brunswick HST
HST — federal component
5%Excise Tax Act (Canada)
HST — provincial component
10%New Brunswick HST; Excise Tax Act (Canada)
Basic personal amount (NB, 2025)
$13,044New Brunswick Income Tax Act; Form NB428
Spousal / equivalent-to-spouse amount (NB, 2025)
$13,044New Brunswick Income Tax Act; Form NB428
Age amount (NB, 2025)
$5,493New Brunswick Income Tax Act; Form NB428
NB Low-Income Tax Reduction — approximate single threshold
~$22,000 (single)New Brunswick Income Tax Act; Form NB479
NB Child Tax Benefit — per-child amount
$250 per child (income-tested)New Brunswick Income Tax Act; Form NB479
NB Seniors' Home Renovation Tax Credit — credit rate
10% of eligible expensesNew Brunswick Income Tax Act; Form NB479
NB Seniors' Home Renovation Tax Credit — maximum eligible expenses
$10,000 per yearNew Brunswick Income Tax Act; Form NB479
NB Seniors' Home Renovation Tax Credit — maximum credit per year
$1,000 per yearNew Brunswick Income Tax Act; Form NB479
NB Tuition Rebate — rebate rate
50% of tuition paidNew Brunswick Income Tax Act; Form NB479
NB Tuition Rebate — claim period
Over 3 yearsNew Brunswick Income Tax Act; Form NB479
NB Tuition Rebate — maximum lifetime rebate
$10,000New Brunswick Income Tax Act; Form NB479
Combined Federal + NB marginal rate — Band 1 (0 to $49,958)
24.4%Income Tax Act (Canada); New Brunswick Income Tax Act
Combined Federal + NB marginal rate — Band 2 ($49,959 to $57,375)
29%Income Tax Act (Canada); New Brunswick Income Tax Act
Combined Federal + NB marginal rate — Band 3 ($57,376 to $99,916)
34.5%Income Tax Act (Canada); New Brunswick Income Tax Act
Combined Federal + NB marginal rate — Band 4 ($99,917 to $114,750)
36.5%Income Tax Act (Canada); New Brunswick Income Tax Act
Combined Federal + NB marginal rate — Band 5 ($114,751 to $158,468)
42%Income Tax Act (Canada); New Brunswick Income Tax Act
Combined Federal + NB marginal rate — Band 6 ($158,469 to $185,064)
45%Income Tax Act (Canada); New Brunswick Income Tax Act
Combined Federal + NB marginal rate — Band 7 ($185,065 to $220,000)
48.5%Income Tax Act (Canada); New Brunswick Income Tax Act
Combined Federal + NB marginal rate — Band 8 (above $220,000)
52.5%Income Tax Act (Canada); New Brunswick Income Tax Act
NB non-refundable credit — disability amount
$9,834New Brunswick Income Tax Act; Form NB428
NB non-refundable credit — pension income maximum
Up to $1,000New Brunswick Income Tax Act; Form NB428
NB non-refundable credit rate (lowest bracket, applied to most credits)
9.4%New Brunswick Income Tax Act; Form NB428
NB donations credit — rate on first $200
9.4%New Brunswick Income Tax Act; Form NB428
NB donations credit — rate on excess over $200
19.5%New Brunswick Income Tax Act; Form NB428
NB medical expenses credit — threshold
Excess over 3% of net incomeNew Brunswick Income Tax Act; Form NB428
HST small supplier registration threshold
$30,000 in 4 consecutive quartersExcise Tax Act (Canada), s. 148
HST New Housing Rebate — provincial portion rebate rate
36% rebate on homes up to $350,000Excise Tax Act (Canada); New Brunswick HST New Housing Rebate
NB Dividend Tax Credit — eligible dividends (public corps) federal gross-up
38% gross-upIncome Tax Act (Canada), s. 82(1)(b)(ii)
NB Dividend Tax Credit — eligible dividends NB credit rate
14% of taxable dividend amountNew Brunswick Income Tax Act; Form NB428
NB Dividend Tax Credit — non-eligible dividends (CCPCs) federal gross-up
15% gross-upIncome Tax Act (Canada), s. 82(1)(b)(i)
NB Dividend Tax Credit — non-eligible dividends NB credit rate
2.75% of taxable dividend amountNew Brunswick Income Tax Act; Form NB428
Capital gains inclusion rate — first $250,000 (individuals)
50%Income Tax Act (Canada), s. 38(a)
Capital gains inclusion rate — above $250,000 (individuals, effective June 2024)
Not applicable — proposed $250,000 higher-inclusion threshold was cancelled; current inclusion rate remains 50% for all capital gainsPM announcement March 21, 2025 cancelling proposed capital-gains inclusion-rate increase; CRA administration update; ITA s.38; LCGE increase retained at $1.25M for 2025
Capital gains inclusion rate change threshold (individuals)
Not applicable — proposed $250,000 higher-inclusion threshold was cancelled; current inclusion rate remains 50% for all capital gainsPM announcement March 21, 2025 cancelling proposed capital-gains inclusion-rate increase; CRA administration update; ITA s.38; LCGE increase retained at $1.25M for 2025
Lifetime Capital Gains Exemption — qualifying small business shares (2025)
$1,250,000Income Tax Act (Canada), s. 110.6
NB Small Business Investor Tax Credit — credit rate
50% of eligible investmentNew Brunswick Income Tax Act; Form NB479
NB Small Business Investor Tax Credit — maximum investment per investor per year
$125,000New Brunswick Income Tax Act; Form NB479
NB Small Business Investor Tax Credit — maximum credit per year
$62,500New Brunswick Income Tax Act; Form NB479
NB Small Business Investor Tax Credit — carry-forward period for unused credits
7 yearsNew Brunswick Income Tax Act; Form NB479
NB Small Business Investor Tax Credit — minimum hold period for investment
4 yearsNew Brunswick Income Tax Act; Form NB479
NB Low-Income Tax Reduction — single filer threshold (exact)
$22,005New Brunswick Income Tax Act; Form NB479
NB Low-Income Tax Reduction — single + 1 dependant threshold
$28,459New Brunswick Income Tax Act; Form NB479
NB Low-Income Tax Reduction — couple (no dependants) threshold
$28,459New Brunswick Income Tax Act; Form NB479
NB Low-Income Tax Reduction — couple + 1 child threshold
$32,457New Brunswick Income Tax Act; Form NB479
NB Seniors' Home Renovation Credit — minimum age of eligibility
65+New Brunswick Income Tax Act; Form NB479
Quick Reference
| Field | Value |
|---|---|
| Province | New Brunswick (Canada) |
| Tax | Provincial Personal Income Tax |
| Currency | CAD only |
| Tax year | 1 January -- 31 December 2025 |
| Primary legislation | New Brunswick Income Tax Act |
| Tax authority | Canada Revenue Agency (administers on behalf of New Brunswick) |
| Filing portal | CRA My Account / NETFILE / paper T1 |
| Filing deadline | 30 April 2026 (15 June 2026 if self-employed; balance due 30 April) |
| Skill version | 1.0 |
New Brunswick Provincial Tax Rates (2025)
| Taxable Income (CAD) | Rate |
|---|---|
| 0 -- 49,958 | 9.4% |
| 49,959 -- 99,916 | 14% |
| 99,917 -- 185,064 | 16% |
| 185,065+ | 19.5% |
Key New Brunswick Features
| Feature | Detail |
|---|---|
| Harmonized sales tax (HST) | 15% (5% federal + 10% provincial) |
| Basic personal amount (2025) | $13,044 |
| Spousal/equivalent amount | $13,044 |
| Age amount | $5,493 |
| NB Low-Income Tax Reduction | Eliminates provincial tax for income below ~$22,000 (single) |
| NB Child Tax Benefit | $250/child (income-tested) |
| NB Seniors' Home Renovation Tax Credit | 10% of eligible expenses (max $10,000) |
| NB Tuition Rebate (for graduates staying in NB) | 50% of tuition rebated over 3 years |
Combined Federal + New Brunswick Marginal Rates (2025)
| Taxable Income (CAD) | Combined Rate |
|---|---|
| 0 -- 49,958 | 24.4% |
| 49,959 -- 57,375 | 29% |
| 57,376 -- 99,916 | 34.5% |
| 99,917 -- 114,750 | 36.5% |
| 114,751 -- 158,468 | 42% |
| 158,469 -- 185,064 | 45% |
| 185,065 -- 220,000 | 48.5% |
| 220,001+ | 52.5% |
Conservative Defaults
| Ambiguity | Default |
|---|---|
| Unknown residency province on Dec 31 | Do not compute -- confirm province |
| Unknown marital/family status | Single, no dependants |
T1 Structure
| Schedule | Purpose |
|---|---|
| T1 General | Federal return |
| Form NB428 | New Brunswick Tax and Credits |
| Form NB479 | New Brunswick Credits (refundable) |
Provincial Non-Refundable Credits (Form NB428)
| Credit | Amount (2025) | Rate |
|---|---|---|
| Basic personal amount | $13,044 | 9.4% |
| Spousal / common-law partner | $13,044 | 9.4% |
| CPP/EI contributions | Actual | 9.4% |
| Age amount | $5,493 | 9.4% |
| Pension income | Up to $1,000 | 9.4% |
| Disability | $9,834 | 9.4% |
| Tuition | Actual | 9.4% |
| Medical expenses | Excess over 3% of net income | 9.4% |
| Donations | First $200 at 9.4%; excess at 19.5% | Non-refundable |
New Brunswick Refundable Credits (Form NB479)
| Credit | Detail |
|---|---|
| NB Low-Income Tax Reduction | Eliminates provincial tax for low-income earners |
| NB Child Tax Benefit | $250/child; income-tested |
| Seniors' Home Renovation Credit | 10% on up to $10,000 eligible expenses |
| Tuition Rebate | 50% of tuition over 3 years for NB graduates working in NB |
| Small Business Investor Tax Credit | 50% of eligible investment (max $125,000 investment) |
HST Considerations
| Item | Detail |
|---|---|
| HST rate | 15% (5% federal + 10% provincial) |
| HST registrant (business) | Full input tax credit (ITC) available |
| Small supplier threshold | $30,000 in 4 consecutive quarters |
| New Housing Rebate | Provincial portion: 36% rebate on homes up to $350,000 |
| Point-of-sale rebates | Children's clothing, footwear, diapers, feminine hygiene |
New Brunswick Dividend Tax Credit
| Dividend Type | Federal Gross-Up | NB Credit Rate |
|---|---|---|
| Eligible dividends (public corps) | 38% gross-up | 14% of taxable amount |
| Non-eligible dividends (CCPCs) | 15% gross-up | 2.75% of taxable amount |
NB Small Business Investor Tax Credit
| Element | Detail |
|---|---|
| Credit rate | 50% of eligible investment |
| Maximum investment | $125,000 per investor per year |
| Maximum credit | $62,500 per year |
| Eligible businesses | NB-based small businesses (approved by NB government) |
| Carry-forward | 7 years for unused credits |
| Hold period | Must hold investment for at least 4 years |
NB Tuition Rebate details
| Element | Detail |
|---|---|
| Eligible programs | Degrees/diplomas from designated NB institutions |
| Maximum lifetime rebate | $10,000 |
| Claim schedule | ~33% per year over 3 years |
| Residency | Must be NB resident and working in NB |
| Application | Automatic through T1 filing (claimed on NB479) |
Low-Income Tax Reduction thresholds
| Filing Status | Threshold (approximate) |
|---|---|
| Single | $22,005 |
| Single + 1 dependant | $28,459 |
| Couple (no dependants) | $28,459 |
| Couple + 1 child | $32,457 |
Seniors' Home Renovation Credit
| Element | Detail |
|---|---|
| Credit rate | 10% of eligible expenses |
| Maximum expenses | $10,000 per year |
| Maximum credit | $1,000 per year |
| Eligibility | 65+ or supporting a senior; NB resident |
| Eligible expenses | Ramps, grab bars, walk-in tubs, stairlifts, widening doorways |
| Non-eligible | Routine maintenance, appliances, landscaping |
New Brunswick is Canada's only officially bilingual province. CRA services and all tax forms are available in both English and French. No tax implications -- administrative convenience only.
Single taxpayer, employment income $70,000 (2025)
| Step | Calculation | Amount |
|---|---|---|
| Taxable income | $70,000 | |
| NB tax on first $49,958 | $49,958 × 9.4% | $4,696 |
| NB tax on $49,959 -- $70,000 | $20,042 × 14% | $2,806 |
| Gross NB provincial tax | $7,502 | |
| Less: Basic personal credit | $13,044 × 9.4% | ($1,226) |
| Less: CPP credit | ~$3,867 × 9.4% | ($364) |
| Less: EI credit | ~$1,049 × 9.4% | ($99) |
| Net NB provincial tax | $5,813 | |
| Federal tax (for reference) | $10,252 | |
| Total combined tax (approx.) | $16,065 | |
| Effective combined rate | ~22.9% |
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