Form 11 Explained: The Irish Self-Employed Tax Return (2026)

Short answer: A self-employed person in Ireland files a Form 11, the income tax return and self-assessment for a chargeable person, normally through ROS. Your business profit goes into Panel B, and the Extract from Accounts panels replace the accounts themselves — you never attach them. The 2025 Form 11 is due 31 October 2026, extended to 18 November 2026 if you both file and pay through ROS. That one payment covers the 2025 balance plus preliminary tax for 2026.

The Form 11 is not a business return. It is your personal income tax return, and your trading result is one part of it. Every figure below comes from Revenue — the Guide to Completing 2025 Pay & File Self-Assessment Returns and the pay and file pages — and applies to a sole trader rather than a limited company. For the rates that produce the numbers you enter, see self-employed taxes in Ireland; if you are not registered for income tax yet, start with how to register as self-employed in Ireland.

What is a Form 11, and do I have to file one?

The Form 11 is titled Tax Return and Self-Assessment. You file it if you are a chargeable person for a given year. Any one of the following is enough.

Trigger	Detail
Trading income and no PAYE income	Income from a business, trade, profession or vocation
PAYE income plus non-PAYE income over €5,000 net	Net of capital allowances, expenses and losses forward
PAYE income plus non-PAYE income over €30,000 gross	Gross profits or gains before allowances and losses
Proprietary director	Owns or controls more than 15% of ordinary share capital
Rental, foreign or other non-PAYE income only	Dividends, deposit interest, covenants, estate income and so on
Opened a foreign bank account in the year	Subject to the exchange-of-information carve-out

Three related forms cause confusion. Form 11S is a shorter extract of the Form 11, usable only where everything relevant to you is captured by it. Form 12 (or eForm 12) is for PAYE taxpayers who are not chargeable persons — typically someone with small non-PAYE income under €5,000 already coded against their credits. And a gain from exercising, assigning or releasing a share option under section 128 TCA 1997 does not, on its own, make you a chargeable person — Revenue confirms this for options exercised, assigned or released on or after 1 January 2024, because the income tax is now deducted by the employer through payroll. Capital gains on selling the resulting shares are still taxed under self-assessment.

Married couples and civil partners submit one return showing both incomes, unless a formal election for separate treatment has been made.

How do I file a Form 11 — ROS, paper or the offline facility?

There are three routes, and most self-employed people are pushed towards the first.

• ROS (Revenue Online Service). The self-assessed filing and payment system, available around the clock. Registration is a three-step process: apply for a ROS Access Number (RAN), which arrives by post; apply for your digital certificate; then download and save that certificate on the machine you will log in from. Start this well before October — the RAN letter takes days, not minutes.
• The Return Preparation Facility (RPF). An offline tool at ros.ie/rpf-web/rev/offline that lets you prepare the Form 11 on your own computer and save it as a file. It is not a filing route on its own: the completed return still has to be uploaded through ROS.
• Paper. Post the completed form to the return address printed on page 1 of the form — Revenue prints “Freepost” instructions there, so no stamp is needed. Most self-assessed individuals are mandatory e-filers and must file electronically even if a paper Return of Income was issued to them; the category list is on revenue.ie under Starting and running a business, so check it before assuming paper is open to you.

The practical argument for ROS is the calculation: file online and you get an instant liability figure at any point up to the deadline, where on paper you either work it out yourself or file early enough for Revenue to do it for you.

Which panels of the Form 11 does a self-employed person actually complete?

The Form 11 is organised into lettered panels, A to P. Most of them will not apply to a one-person business. Panels that need no entry are simply left blank.

Panel	Content	Typical sole trader
A	Personal Details	Yes — civil status, dates of birth, PPS number
B	Self-Employed Income (including farming and partnership)	Yes — this is the core
C	Irish Rental Income	Only if you let property
D / E	PAYE / BIK / Pensions	Only if you also had employment income
F	Foreign Income	Only if you had it
G	Irish Other Income	Deposit interest, dividends and similar
H	Exempt Income	Rarely
I	Charges and Deductions	Pension contributions, permanent health insurance
J	Personal Tax Credits	Yes — including the Earned Income Tax Credit at line 516
K	Restriction of Reliefs	High-income reliefs restriction; rarely
L / M / N	Capital Gains, Chargeable Assets, Capital Acquisitions	Only if you disposed of or received assets
O	Property Based Incentives	Rarely
P	Self-Assessment	Yes — see below

How does my business profit get onto the Form 11?

Through Panel B, at lines 101 to 168. You do not enter turnover and let Revenue work out the tax. You prepare accounts, adjust them for tax, and enter the result.

Line	What it holds
102	Description of the trade, profession or vocation
105	Whether the source ceased during the year
108(a) / 108(b)	Adjusted net profit or adjusted net loss for the accounting period
109	Profit assessable for the year — the figure you are taxed on
113–116	Capital allowances for the current year, including machinery and plant
117	Current-year loss you elect, under section 381 TCA 1997, to set against other income
118	Unused trading losses forward from a prior year
122	Credit for Professional Services Withholding Tax

Line 109 is usually the same as line 108(a), but not always — commencement and cessation years can differ, and you must enter 109 regardless. You are generally assessed on the adjusted net profit of a twelve-month accounting period ending in the tax year, so accounts to 30 June 2025 form the basis for the 2025 return.

Capital allowances sit below the profit line, not inside it. Wear and tear on plant, machinery and motor vehicles runs at 12.5% a year over eight years on a straight-line basis for expenditure incurred on or after 4 December 2002, and vehicles are entered under “machinery and plant”. Taxis and short-term hire cars are the exception — Revenue calculates those on a reducing-balance basis instead. The asset has to be in use at the end of the accounting period. Unused allowances carry forward against future profits of the same trade. A loss carried forward at line 118 can only be set against profits of that same trade, and only up to the amount of that trade’s income for the year.

If you have two trades, the main one goes in the Primary Trade section and the second in Appendix 1; trades of a spouse or civil partner are kept separate.

What goes in the Extract from Accounts panels?

Lines 124 to 168, and this is the part people are not expecting. You must prepare proper business accounts, but you must not submit them. Instead you transcribe headline figures into the Extract from Accounts panels. Revenue is explicit that these are extracts from your accounts, not a tax computation.

Line	Heading
128	Sales / Receipts / Turnover
131 / 132	Purchases; Gross Trading Profits
133	Salaries and wages (staff only — not your own drawings)
137	Consultancy and professional fees
138	Motor, Travel and Subsistence
139	Repairs and renewals
141	Depreciation, goodwill and capital write-off
143	Other expenses
146	Drawings, net of tax and pension contributions
150 / 151	Cash and bank; loans and overdraft
157 / 158	Net trade profit or loss per accounts
160–162	Add-backs: private element of motor expenses; donations and entertainment; private element of light, heat and phone

Two mechanical points. Your accounts may split things differently from the form — if motor, travel and subsistence appear on separate lines in your books, you aggregate them into line 138. And depreciation at 141 is an accounting figure that gets added back in the adjusted profit computation — Revenue says so explicitly in its note on line 141 — because tax relief on assets comes through capital allowances instead. There is no dedicated depreciation add-back line: only motor (160), donations and entertainment (161) and light, heat and phone (162) get their own boxes, so depreciation lands in Other Addbacks at line 167.

The add-backs at 160 and 162 are where the business/private split gets declared, so the split has to be defensible. Mileage and motor expenses in Ireland covers how the motor apportionment works for a sole trader, and expenses and receipts covers what belongs in the expense lines at all.

Individual partners do not complete these pages — the partnership files that information in the Form 1 (Firms), and the partner enters the partnership tax reference at line 127(a).

What is the self-assessment panel, and do I have to complete it?

Panel P, lines 936 to 937. Filing the return and making the self-assessment are two separate obligations, and failing to make the self-assessment carries a €250 penalty.

The panel walks through the arithmetic: total income before deductions at 936(a); income tax chargeable at 936(b)(i); USC and PRSI recorded separately at 936(b)(ii)–(v); the sum of all three at 936(b)(vi); tax payable after credits at 936(c); any late-filing surcharge at 936(f); the LPT surcharge at 936(g); preliminary tax already paid at 936(h); and the balance payable or overpaid at 936(i).

There is one way out. If you file a paper return on or before 31 August 2026, Revenue makes the self-assessment on your behalf. Revenue’s Guide to Completing 2025 Pay & File Self-Assessment Returns states twice that this date has been extended to 30 September 2026 — but the printed Form 11 still carries the 31 August date, so if you are cutting it fine, treat 31 August as the safe date and confirm the extension with Revenue before relying on September. After either date, the calculation is yours. On a paper return you must also sign two declarations: the one on page 1 and the one in the self-assessment panel. Sign only the first and you have not made a self-assessment.

When is the Form 11 due, and what happens if I file late?

Obligation	Date
File the 2025 Form 11, pay the 2025 balance and 2026 preliminary tax	31 October 2026
Same, where you both file and pay through ROS	18 November 2026
Paper filing with Revenue calculating your liability	31 August 2026 on the form; extended to 30 September 2026 in Revenue’s 2025 guide
File the 2026 Form 11	31 October 2027
Repayment claims for the year ended 31 December 2022	31 December 2026

The ROS extension is conditional and the condition is routinely missed: you must file the return and make the payment through ROS. File online and pay by cheque or bank draft and you fall back to 31 October. Revenue announces the ROS date annually, so the extended date for the 2026 return has not been published yet — only 31 October 2027 is safe to plan around.

Delay	Surcharge	Cap
Filed after 31 October 2026, on or before 31 December 2026	5% of the tax due	€12,695
Filed after 31 December 2026	10% of the tax due	€63,485

Revenue’s wording is that the surcharge is “a percentage of the total tax payable for the year for which the return is late”. On the form it is calculated on the tax payable at 936(d) — that is, after tax credits and tax already withheld at source, but before deducting the preliminary tax you have already handed over. So someone who paid everything on time and filed in January is still charged. Separately, if you file on time but have not filed or paid your Local Property Tax — or entered an agreed payment arrangement — add 10% to the self-assessment liability, subject to the same €63,485 overall maximum. Once the LPT is brought up to date, the surcharge is capped at the amount of the LPT liability itself.

How do I pay what the Form 11 says I owe?

Two payments fall on the same date: the balance for the year you are filing, and preliminary tax for the current year. To avoid interest, preliminary tax must be at least the lower of 90% of the current year’s final liability, 100% of the prior year’s, or 105% of the pre-preceding year’s — the last only if you pay by direct debit and only where that year was not nil.

Preliminary tax must cover income tax, USC and PRSI together. Budgeting for income tax alone is the classic underpayment, and underpayment backdates the due date for the whole balance to 31 October of the year of assessment: Revenue’s guidelines state that where insufficient preliminary tax is paid, or it is paid late, the due date for the full amount reverts to the date the preliminary tax should have been paid. Interest then runs under section 1080 TCA 1997 at 0.0219% per day — the income tax daily rate Revenue has applied since 1 July 2009, published in its guidelines for charging interest on late payment.

Through ROS you can pay by ROS Debit Instruction, online banking, or debit or credit card. You may file the return early and select a payment date up to the filing deadline, which is worth doing: it fixes the number in September and keeps the cash until November. Direct debit is available for preliminary tax only, set up and managed on ROS, and Revenue takes it on the ninth of the month. Your monthly payments have to add up to the preliminary tax you expect to owe, so how many instalments you need depends on when in the year you start — check Revenue’s preliminary Income Tax direct debit page before relying on it to hit the 100% or 105% threshold.

What records sit behind the Form 11, and where does Keel fit?

Nothing is attached to the return, so everything rests on what you kept. Revenue requires records to be retained for six years — sales invoices, purchase and expense receipts, and the linking documents connecting them to your accounts — because they may be requested for an assurance check or an audit. The Extract from Accounts panels are only as good as the underlying evidence.

Keel: Invoice Maker & Receipts, by Ilura Technology OÜ, is built for exactly that stretch of work. It runs entirely on your iPhone: no account, no sign-in, no bank connection, no cloud sync. Its App Store privacy label reads “Data Not Collected”.

The honest tradeoff is that nothing imports itself. There is no bank feed reconciling overnight — you raise the invoice, you photograph the receipt (Apple Intelligence reads the merchant, total, tax and date on device), you log the trip. In exchange the records stay in your hands, the ledger is append-only and hash-chained, and at year end the Accountant Pack exports the whole year as a CSV plus a one-page summary PDF, which is the shape your accountant needs to build the accounts the Form 11 draws on. Keel: Invoice Maker & Receipts on the App Store.

The free tier gives you unlimited invoices, receipts and mileage, with a “Made with Keel” footer on invoices. Keel Pro is a one-time $249.99 Lifetime purchase, not a subscription.

Frequently asked questions

What is a Form 11 in Ireland? It is the annual income tax return and self-assessment for a chargeable person — most commonly someone who is self-employed, or who has non-PAYE income above €5,000 net or €30,000 gross. It covers a calendar year, is filed the following October, and includes your income tax, USC and PRSI in a single return.

How do I file a Form 11 online? Through ROS. Register first, which takes three steps: apply for a ROS Access Number, which arrives by post, apply for your digital certificate, then download and save it. Once logged in you complete the panels, get an instant liability calculation, and pay by ROS Debit Instruction, online banking or card. You can also prepare the return offline in the Return Preparation Facility and upload it.

What is the difference between a Form 11 and a Form 12? Form 11 is for chargeable persons under self-assessment. Form 12 is for PAYE taxpayers who are not chargeable persons — typically someone with net non-PAYE income under €5,000 that is coded against their tax credits or already taxed at source. Form 11S is a shorter extract of the Form 11, usable only where it captures everything relevant to you.

Do I have to send my accounts with my Form 11? No. You must prepare proper business accounts, but you do not submit them or any schedules with the return. Instead you complete the Extract from Accounts panels at lines 124 to 168, transcribing headline figures such as turnover, purchases, expense categories and net profit. The accounts themselves are retained for six years in case Revenue asks.

When is the Form 11 deadline for 2026? The 2025 Form 11 is due 31 October 2026, extended to 18 November 2026 if you both file the return and make the payment through ROS. The 2026 Form 11 is due 31 October 2027; Revenue publishes the ROS extended date for that year closer to the time, so do not assume a November date.

What happens if I file my Form 11 late? A surcharge is added to your tax: 5% of the tax due or €12,695, whichever is lesser, if you file within two months of the deadline, and 10% or €63,485, whichever is lesser, after that. It is charged on the year’s tax payable before credit for the preliminary tax you already paid, so filing late still costs you even if the tax itself was paid on time.

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This article is general information, not tax advice. Consult a qualified Irish tax professional.