ie-income-tax-form11

Section 1 -- Quick Reference

Section 1 Quick Reference table

Field	Value
Country	Ireland
Tax	Income Tax (20%/40%) + USC + PRSI Class S
Currency	EUR only
Tax year	Calendar year (1 January -- 31 December)
Primary legislation	Taxes Consolidation Act 1997 (TCA 1997)
Supporting legislation	Finance Act 2024 (Budget 2025); Social Welfare Consolidation Act 2005 (PRSI); Part 18D TCA 1997 (USC)
Tax authority	Revenue Commissioners (revenue.ie)
Filing portal	Revenue Online Service (ROS)
Filing deadline	31 October (paper) / mid-November (ROS e-filing) of following year
Contributor	Open Accountants Community
Validated by	Pending -- requires sign-off by a Chartered Accountant or CTA
Validation date	Pending
Skill version	2.0

Income Tax Rates and Standard Rate Band (2025)

Income Tax Rates and Standard Rate Band (2025)

Filing Status	Standard Rate Band (20%)	Balance at 40%
Single	EUR 44,000	Above EUR 44,000
Married (one earner)	EUR 53,000	Above EUR 53,000
Married (two earners)	EUR 53,000 + EUR 35,000 (max EUR 88,000)	Above combined band
Single parent	EUR 48,000	Above EUR 48,000

USC Rates (2025)

USC Rates (2025)

Band	Rate
First EUR 12,012	0.5%
EUR 12,012.01 -- EUR 27,382	2%
EUR 27,382.01 -- EUR 70,044	3%
Above EUR 70,044	8%
USC surcharge (non-PAYE income > EUR 100,000)	+3%

• USC exemption — USC exemption: total income not exceeding EUR 13,000 = no USC.

PRSI Class S (2025)

PRSI Class S (2025)

Item	Value
Rate (blended 2025)	4.125% (4.1% Jan-Sep, 4.2% Oct-Dec)
Minimum contribution	EUR 650/year
Income threshold	EUR 5,000 (below = no PRSI)

Key Personal Tax Credits (2025)

Key Personal Tax Credits (2025)

Credit	EUR
Single Person's Credit	2,000
Married Person's Credit	4,000
Earned Income Credit (self-employed)	2,000
Employee (PAYE) Credit	2,000
One Parent Family Credit	1,800

Form 11 Key Panels

Form 11 Key Panels

Panel	Description
Panel A	Personal details
Panel B	Self-employment (Case I/II) -- turnover, profit, capital allowances
Panel C	Other Irish income (PAYE, rental, investment)
Panel D	Foreign income
Panel E	Tax credits and reliefs
Panel F	Capital gains
Panel G	Property details
Panel H	Self-assessment (tax, preliminary tax, balance)

Conservative Defaults

Conservative Defaults

Ambiguity	Default
Unknown filing status	Single
Unknown business-use % (vehicle, phone, home)	0% deduction
Unknown expense category	Not deductible
Unknown whether capital or revenue	Capital (depreciate)
Unknown motor vehicle cost	Cap at EUR 24,000

Section 2 -- Required Inputs and Refusal Catalogue

Required Inputs

• Minimum viable — Minimum viable -- bank statement for the full tax year in CSV, PDF, or pasted text, plus confirmation of filing status (single/married/single parent).
• Recommended — Recommended -- all sales invoices, purchase invoices, prior year Form 11 or Notice of Assessment, PPS number, capital asset records.
• Ideal — Ideal -- complete trading account, asset register with capital allowances schedule, preliminary tax payment records, employment P60/payslip (if dual income).
• Refusal if minimum is missing — Refusal if minimum is missing -- SOFT WARN. No bank statement = hard stop. Bank statement without invoices = proceed with reviewer warning.

Refusal Catalogue

• R-IE-1 — Companies (Ltd, DAC, PLC). "This skill covers self-employed individuals filing Form 11 only. Companies file Form CT1 (Corporation Tax). Out of scope."
• R-IE-2 — Partnerships. "Partnership profits are computed at partnership level (Form 1 Firms) and allocated to partners. Out of scope."
• R-IE-3 — Non-resident / dual resident. "Non-resident and dual-resident taxation has different rules. Escalate."
• R-IE-4 — Capital gains tax (CGT). "CGT computations require detailed disposal analysis. Escalate."
• R-IE-5 — Revenue audit / appeal. "Revenue audit or appeal situations require specialist advice. Escalate."

Section 3 -- Transaction Pattern Library

This is the deterministic pre-classifier. When a bank statement transaction matches a pattern below, apply the treatment directly. If none match, fall through to Tier 1 rules in Section 5.

3.1 Income Patterns (Credits on Bank Statement)

Income Patterns (Credits on Bank Statement)

Pattern	Form 11 Line	Treatment	Notes
Client name + TRANSFER, LODGEMENT, EFT	Panel B -- Turnover	Business income	If VAT-registered, extract net (excl. 23% VAT)
PROFESSIONAL FEES, CONSULTANCY, INVOICE	Panel B -- Turnover	Business income	Case II profession typical
STRIPE PAYOUT, STRIPE TRANSFER	Panel B -- Turnover	Business income	Platform payout -- match to invoices
PAYPAL PAYOUT, PAYPAL TRANSFER	Panel B -- Turnover	Business income	Match to underlying invoices
WISE PAYOUT, REVOLUT PAYOUT	Panel B -- Turnover	Business income	International platform payout
UPWORK, FIVERR, TOPTAL	Panel B -- Turnover	Business income	Net of platform commission
SALARY, WAGES, EMPLOYER [name]	Panel C -- Employment	NOT self-employment	PAYE income -- separate
RENT RECEIVED, TENANT [name]	Panel C -- Rental	NOT self-employment	Rental income -- Case V
DEPOSIT INTEREST, DIRT	Panel C -- Investment	NOT self-employment	DIRT already withheld at 33%
DIVIDEND	Panel C -- Investment	NOT self-employment
REVENUE REFUND, TAX REFUND	EXCLUDE	Not income	Prior year refund
SOCIAL WELFARE, DEASP	Check nature	May be taxable	Some SW payments are taxable income

3.2 Expense Patterns (Debits) -- Fully Deductible

Expense Patterns (Debits) -- Fully Deductible

Pattern	Category	Treatment	Notes
OFFICE RENT, COMMERCIAL RENT, LEASE [premises]	Rent	Fully deductible	Dedicated business premises
PROFESSIONAL INDEMNITY, PI INSURANCE	Insurance	Fully deductible
ACCOUNTANT, AUDITOR, TAX ADVISER	Professional fees	Fully deductible
SOLICITOR, BARRISTER (business)	Legal fees	Fully deductible	Business-related only
OFFICE SUPPLIES, STATIONERY, VIKING	Supplies	Fully deductible
MARKETING, GOOGLE ADS, META ADS, FACEBOOK ADS	Advertising	Fully deductible
TRAINING, CPD, COURSE, CONFERENCE	Training	Fully deductible	Current business related
CPA IRELAND, ACCA, LAW SOCIETY, CHARTERED	Professional subs	Fully deductible
BANK CHARGE, MAINTENANCE FEE, TRANSACTION FEE	Bank charges	Fully deductible	Business account
STRIPE FEE, PAYPAL FEE, SQUARE FEE	Payment processing	Fully deductible
POSTAGE, AN POST (business)	Postage	Fully deductible
DOMAIN, HOSTING, AWS, CLOUDFLARE	IT infrastructure	Fully deductible
SOFTWARE, SUBSCRIPTION, SAAS	Software	Fully deductible	Recurring subscription = revenue

3.3 Expense Patterns (Debits) -- Travel and Subsistence

Expense Patterns (Debits) -- Travel and Subsistence

Pattern	Category	Treatment	Notes
RYANAIR, AER LINGUS, EASYJET	Flights	Fully deductible	Business purpose required
HOTEL, BOOKING.COM, AIRBNB	Accommodation	Fully deductible	Business travel
IRISH RAIL, IARNROD EIREANN, BUS EIREANN	Transport	Fully deductible	Business travel
TAXI, FREE NOW, BOLT	Local transport	Fully deductible	Business purpose
SUBSISTENCE, PER DIEM	Subsistence	Civil service rates	Standard rates apply

3.4 Expense Patterns (Debits) -- NOT Deductible

Expense Patterns (Debits) -- NOT Deductible

Pattern	Category	Treatment	Notes
RESTAURANT, DINNER, LUNCH, ENTERTAINMENT	Entertainment	NOT deductible	Blocked under s.840 TCA 1997
PERSONAL, GROCERIES, SUPERMARKET, TESCO, DUNNES	Personal	NOT deductible	Private living costs
FINE, PENALTY, PARKING FINE	Fines	NOT deductible	Public policy
REVENUE PAYMENT, INCOME TAX, USC, PRSI	Tax payments	NOT deductible	Tax on income
DRAWINGS, PERSONAL, ATM (personal)	Drawings	NOT deductible	Not an expense

3.5 Expense Patterns (Debits) -- Capital Items

Expense Patterns (Debits) -- Capital Items

Pattern	Category	Annual Rate	Notes
LAPTOP, COMPUTER, MACBOOK, IMAC	Computer equipment	12.5% (8 years)	Capital allowance
PRINTER, SCANNER, COPIER	Plant/machinery	12.5% (8 years)
FURNITURE, DESK, CHAIR, FILING	Furniture/fittings	12.5% (8 years)
VEHICLE, CAR (business)	Motor vehicle	12.5% (8 years, capped EUR 24,000)	Business % only
ENERGY EFFICIENT (SEAI listed)	ACA equipment	100% year 1	Accelerated Capital Allowance

3.6 Expense Patterns -- Mixed Use (Tier 2)

Expense Patterns -- Mixed Use (Tier 2)

Pattern	Category	Treatment	Notes
ESB, ELECTRIC IRELAND, BORD GAIS	Utilities	T2 -- home office % only	If home office
EIRCELL, THREE, VODAFONE, 48	Phone	T2 -- business % only	Default 0%
BROADBAND, EIRE, SKY, VIRGIN MEDIA	Internet	T2 -- business % only	Default 0%
FUEL, PETROL, DIESEL, CIRCLE K, MAXOL	Vehicle fuel	T2 -- business % only	Mileage log required
RENT (residential, for home office)	Home office	T2 -- proportional	Dedicated room required

3.7 Exclusions

Exclusions

Pattern	Treatment	Notes
INTERNAL TRANSFER, OWN ACCOUNT, SAVINGS	EXCLUDE	Own-account transfer
LOAN REPAYMENT, MORTGAGE PRINCIPAL	EXCLUDE	Loan principal
LOAN INTEREST (business)	Deductible	Interest on business borrowings
VAT PAYMENT, REVENUE VAT	EXCLUDE	VAT liability payment
PRELIMINARY TAX, PT PAYMENT	Panel H (credit)	Not expense -- credit against liability

3.8 Irish Banks -- Statement Format Reference

Irish Banks -- Statement Format Reference

Bank	Format	Key Fields	Notes
AIB (Allied Irish Banks)	PDF, CSV	Date, Description, Debit, Credit, Balance	Most common; description = counterparty + ref
BOI (Bank of Ireland)	PDF, CSV	Date, Details, Debit, Credit, Balance	Similar format to AIB
PTSB (Permanent TSB)	PDF, CSV	Date, Description, Amount, Balance	Less granular descriptions
Ulster Bank / NatWest	PDF, CSV	Date, Description, Paid Out, Paid In, Balance	UK-style format
Revolut Business	CSV	Date, Counterparty, Amount, Currency, Reference	Clean data
N26, Wise	CSV	Date, Counterparty, Amount, Reference	International neobanks

Section 4 -- Worked Examples

Example 1 -- Client Payment (VAT-registered)

Input line: 15/03/2025 ; AIB CREDIT TRANSFER ; ABC CONSULTING LTD ; INV-2025-012 ; +6,150.00 ; EUR

Reasoning: Client payment. If VAT-registered at 23%, EUR 6,150 includes VAT. Net = EUR 5,000 (Panel B turnover). EUR 1,150 is VAT collected (excluded).

Classification: Panel B turnover = EUR 5,000.

Example 2 -- Entertainment (Blocked)

Input line: 22/04/2025 ; BOI VISA ; THE SHELBOURNE HOTEL ; CLIENT DINNER ; -120.00 ; EUR

Reasoning: Entertainment. Blocked under s.840 TCA 1997. No deduction.

Classification: NOT deductible. Remove from allowable deductions.

Example 3 -- Motor Vehicle Capital Allowance

Input line: 01/06/2025 ; AIB DD ; VOLKSWAGEN FINANCE ; CAR PAYMENT ; -450.00 ; EUR

Reasoning: Car finance payment. The capital cost (not finance payments) determines capital allowance. Motor vehicles capped at EUR 24,000. Annual allowance = EUR 24,000 x 12.5% = EUR 3,000 x business %. Ask for business-use percentage.

Classification: T2 -- capital allowance on capped cost, business % required.

Example 4 -- Software Subscription

Input line: 01/05/2025 ; BOI DD ; ADOBE SYSTEMS IRELAND ; CREATIVE CLOUD ; -29.99 ; EUR

Reasoning: Monthly SaaS subscription. Revenue expense, fully deductible.

Classification: Allowable deduction -- software subscription.

Example 5 -- PRSI / USC Payment (NOT Deductible)

Input line: 31/10/2025 ; AIB TRANSFER ; REVENUE COMMISSIONERS ; PRELIMINARY TAX ; -8,000.00 ; EUR

Reasoning: Preliminary tax payment (includes income tax, USC, PRSI). Not a deductible expense. Goes to Panel H as credit against liability.

Classification: Panel H -- preliminary tax paid. NOT a deduction.

Example 6 -- Internal Transfer (Exclude)

Input line: 15/05/2025 ; AIB TRANSFER ; OWN SAVINGS ACCOUNT ; ; -5,000.00 ; EUR

Reasoning: Transfer between own accounts. Neither income nor expense.

Classification: EXCLUDE.

Section 5 -- Tier 1 Rules (When Data Is Clear)

5.1 Case I / Case II Trading Profits

• Case I / Case II adjusted profit — Gross turnover minus allowable revenue deductions minus capital allowances = adjusted profit. The "wholly and exclusively" test applies (TCA 1997, s.81). (TCA 1997, Schedule D, Cases I and II)

5.2 Capital Allowances

Capital Allowances

Asset Type	Annual Rate	Recovery Period
Plant and machinery	12.5%	8 years
Motor vehicles (capped EUR 24,000)	12.5%	8 years
Computer equipment	12.5%	8 years
Furniture/fittings	12.5%	8 years
Industrial buildings	4%	25 years
Energy-efficient (ACA)	100%	Year 1

• Motor vehicle cap example — Motor vehicle cap: if car costs EUR 35,000, allowances calculated on EUR 24,000 only.

5.3 Non-Deductible Expenses

Non-Deductible Expenses

Expense	Reason
Entertainment	Blocked under s.840 TCA 1997
Personal living expenses	Not business-related
Fines, penalties, surcharges	Public policy
Income tax, USC, PRSI	Tax on income
Capital expenditure	Through capital allowances
General provisions (non-specific bad debts)	Must be specific

5.4 Preliminary Tax

• Preliminary tax minimum — Must equal or exceed the lower of: 100% of prior year's final tax liability; 90% of current year's actual liability.
• First year / direct debit — First year: no preliminary tax due. Direct debit option: 105% of pre-preceding year spread monthly.

5.5 Tax Computation Steps

• Tax Computation Steps — 1. Compute Case I/II adjusted profit 2. Add other income 3. Total income 4. Less deductions (pension, losses forward) 5. Taxable income 6. Apply income tax at 20%/40% 7. Less personal tax credits 8. Income tax payable 9. Compute USC on gross income 10. Compute PRSI Class S on gross income 11. Total liability = IT + USC + PRSI 12. Less preliminary tax and PAYE withholding 13. Balance due / refund

5.6 Filing Deadlines and Penalties

Filing Deadlines and Penalties

Item	Deadline
Form 11 (paper)	31 October
Form 11 (ROS)	Mid-November
Preliminary tax	Same as Form 11
Late surcharge (within 2 months)	5% of tax (max EUR 12,695)
Late surcharge (over 2 months)	10% of tax (max EUR 63,485)
Late payment interest	0.0219% per day (~8% p.a.)

Section 6 -- Tier 2 Catalogue (Reviewer Judgement Required)

6.1 Home Office Expenses

• Home Office Expenses — Proportional deduction based on dedicated room as % of total floor area. Must be exclusively for business -- dual-use room does not qualify. Utility costs (electricity, heat, broadband) apportioned. Conservative default: 0% until reviewer confirms arrangement.

6.2 Motor Vehicle Business Use

• Motor Vehicle Business Use — Business-use % of running costs deductible. Capital allowances on cost capped at EUR 24,000, multiplied by business %. Civil service mileage rates may apply as alternative. Conservative default: 0% business use until mileage log provided.

6.3 Phone / Broadband Mixed Use

• Phone / Broadband Mixed Use — Default: 0%. Client must provide reasonable business-use estimate.

6.4 Bad Debt Write-Off

• Bad Debt Write-Off — Must be specific (not general provision). Previously included in income. All reasonable recovery steps taken. Flag for reviewer.

6.5 Pension Contributions

• Pension Contributions — Age-related % limits (15% under 30 to 40% for 60+). Annual earnings cap EUR 115,000. Flag for reviewer to confirm age bracket.

6.6 Loss Relief

• Loss Relief — Current year: set off against other income (s.381 TCA 1997). Carry forward: against future profits of same trade (s.382). Flag for reviewer for optimal utilisation. (s.381 TCA 1997; s.382)

Section 7 -- Excel Working Paper Template

IRELAND INCOME TAX -- FORM 11 WORKING PAPER
Tax Year: 2025
Client: ___________________________
Filing Status: Single / Married (1 earner) / Married (2 earners) / Single Parent

A. PANEL B -- SELF-EMPLOYMENT INCOME
  A1. Gross turnover (net of VAT if registered)  ___________
  A2. Less: Cost of sales                         ___________
  A3. Gross profit                                ___________
  A4. Less: Allowable revenue deductions           ___________
  A5. Net profit before capital allowances         ___________
  A6. Less: Capital allowances                     ___________
  A7. Adjusted Case I/II profit                    ___________

B. ALLOWABLE DEDUCTIONS BREAKDOWN
  B1. Office rent                                  ___________
  B2. Professional insurance                       ___________
  B3. Accountancy / legal fees                     ___________
  B4. Office supplies                              ___________
  B5. Software / IT                                ___________
  B6. Marketing / advertising                      ___________
  B7. Bank charges / payment processing            ___________
  B8. Training / CPD / professional subs           ___________
  B9. Travel and subsistence                       ___________
  B10. Telecoms (business %)                       ___________
  B11. Home office (% of utilities)                ___________
  B12. Vehicle running costs (business %)          ___________
  B13. Other allowable expenses                    ___________
  B14. TOTAL DEDUCTIONS                            ___________

C. TAX COMPUTATION
  C1. Income tax (20%/40%)                         ___________
  C2. Less: Tax credits                            ___________
  C3. Income tax payable                           ___________
  C4. USC                                          ___________
  C5. PRSI Class S                                 ___________
  C6. Total liability                              ___________
  C7. Less: Preliminary tax paid                   ___________
  C8. Balance due / refund                         ___________

REVIEWER FLAGS:
  [ ] Filing status confirmed?
  [ ] Home office arrangement confirmed?
  [ ] Vehicle business % confirmed with mileage log?
  [ ] Phone/broadband business % confirmed?
  [ ] Motor vehicle cost cap applied (EUR 24,000)?
  [ ] Entertainment excluded?
  [ ] All T2 items flagged?

Section 8 -- Bank Statement Reading Guide

Irish Bank Statement Formats

Irish Bank Statement Formats

Bank	Format	Key Fields	Notes
AIB	PDF, CSV	Date, Description, Debit, Credit, Balance	Most common; good counterparty detail
BOI (Bank of Ireland)	PDF, CSV	Date, Details, Debit, Credit, Balance	Similar to AIB
PTSB	PDF, CSV	Date, Description, Amount, Balance	Less detail in descriptions
Ulster Bank	PDF, CSV	Date, Description, Paid Out, Paid In, Balance	UK-style naming
Revolut Business	CSV	Date, Counterparty, Amount, Currency	Clean; multi-currency
N26	CSV	Date, Counterparty, Amount, Reference	Neobank format

Key Irish Banking Terms

Key Irish Banking Terms

Term	Meaning	Classification Hint
LODGEMENT / LDG	Deposit/credit	Potential income
DD / DIRECT DEBIT	Direct debit	Regular expense
SO / STANDING ORDER	Standing order	Regular expense
EFT	Electronic funds transfer	Check direction
POS / CARD	Point of sale / card payment	Expense
ATM	Cash withdrawal	Ask purpose
CHG / FEE	Bank charge	Deductible

Section 9 -- Onboarding Fallback

If the client provides a bank statement but cannot answer onboarding questions immediately:

1. Classify all transactions using the pattern library (Section 3)
2. Mark all Tier 2 items as "PENDING -- reviewer must confirm"
3. Apply conservative defaults (Section 1)
4. Generate the working paper with clear flags
5. Present the following questions:

ONBOARDING QUESTIONS -- IRELAND INCOME TAX
1. Filing status: single, married (one earner), married (two earners), or single parent?
2. Are you registered for VAT? If yes, at what rate?
3. Home office: dedicated room or shared space? Floor area %?
4. Vehicle: do you use a car for business? Business %? Mileage log?
5. Phone/broadband: business use %?
6. Any capital assets purchased during the year?
7. Preliminary tax paid in the year?
8. Any other income (employment, rental, investment)?
9. Age (for USC reduced rates and pension limits)?
10. Prior year Notice of Assessment available?

Section 10 -- Reference Material

Key Legislation

Key Legislation

Topic	Reference
Income tax rates / bands	TCA 1997, as amended by Finance Act 2024
USC	TCA 1997, Part 18D
PRSI Class S	Social Welfare Consolidation Act 2005
Deductibility test	TCA 1997, s.81 (wholly and exclusively)
Entertainment block	TCA 1997, s.840
Capital allowances	TCA 1997, Part 9 (ss.283-321)
Motor vehicle cap	EUR 24,000
Preliminary tax	TCA 1997, ss.952-959
Late filing surcharge	TCA 1997, s.1084
Record keeping	TCA 1997, s.886 (6 years)

Test Suite

Input: Single, gross EUR 60,000, expenses EUR 15,000, capital allowances EUR 1,250, first year. Expected: Adjusted profit EUR 43,750. IT: EUR 43,750 x 20% = EUR 8,750 - EUR 4,000 credits = EUR 4,750. Plus USC + PRSI.

Input: Married (one earner), gross EUR 100,000, expenses EUR 25,000, capital allowances EUR 3,000. Expected: Adjusted profit EUR 72,000. IT: EUR 53,000 x 20% + EUR 19,000 x 40% - EUR 6,000 credits.

Input: EUR 3,000 client entertainment. Expected: Remove entirely. Not deductible.

Input: Car EUR 40,000, 100% business. Expected: Capped at EUR 24,000. Annual = EUR 3,000.

Input: Non-PAYE income EUR 150,000. Expected: Standard USC + 3% surcharge on EUR 50,000 above EUR 100,000.

Input: Total income EUR 4,000. Expected: No PRSI Class S. Below EUR 5,000.

PROHIBITIONS

• NEVER apply a standard rate band without knowing filing status
• NEVER compute final tax directly -- pass to deterministic engine
• NEVER allow entertainment expenses
• NEVER allow income tax, USC, or PRSI as deductions
• NEVER apply capital allowances on motor vehicles above EUR 24,000
• NEVER allow capital items as revenue deductions
• NEVER ignore the USC surcharge for non-PAYE income over EUR 100,000
• NEVER present tax calculations as definitive

Disclaimer

This skill and its outputs are provided for informational and computational purposes only and do not constitute tax, legal, or financial advice. Open Accountants and its contributors accept no liability for any errors, omissions, or outcomes arising from the use of this skill. All outputs must be reviewed and signed off by a qualified professional (such as a CPA, EA, tax attorney, or equivalent licensed practitioner in your jurisdiction) before filing or acting upon.

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