Learn › Filing taxes in Ireland

In short: Employees and pensioners taxed under PAYE file a simple Income Tax Return through Revenue’s myAccount and receive a Statement of Liability showing any refund or underpayment. People with substantial non-PAYE income are chargeable persons who must self-assess using Form 11 on ROS, paying and filing by 31 October each year — or by the extended mid-November date if they both pay and file online through ROS.

How to file your taxes in Ireland

In Ireland, how you handle your taxes depends on where your income comes from. Most employees and pensioners are taxed automatically under PAYE (Pay As You Earn) and only need to file a simple return to claim refunds or extra credits. People with significant non-PAYE income — the self-employed, landlords, company directors — are “chargeable persons” who must self-assess using Form 11. This chapter explains both routes and the key dates so you know which one applies to you. (As of 2026; when in doubt, check the official Revenue source.)

  • Work out your route. If all your income is taxed under PAYE, you use Revenue’s myAccount. If you have net non-PAYE income of around €5,000 or more (self-employment, rent, dividends), you are a chargeable person and must self-assess with Form 11 on ROS.
  • PAYE route — file an Income Tax Return in myAccount. Sign in to myAccount, complete two-factor authentication, and under “PAYE Services” choose “Review your tax” for the year you want. Submitting the return lets you claim extra credits, reliefs and expenses, or declare extra income.
  • Get your Statement of Liability. About five working days after you submit the PAYE return, Revenue issues a Statement of Liability in your “My Documents” folder. It shows whether you overpaid (a refund is due) or underpaid for that year.
  • Self-assessment route — pay and file on ROS. Chargeable persons complete Form 11 on the Revenue Online Service (ROS), pay any balance due for the prior year, and pay preliminary tax for the current year, all by the deadline.

What matters

Ireland runs two parallel systems for personal income tax, and most of the confusion comes from not knowing which one you are in. The first is PAYE (Pay As You Earn). If you are an employee or pensioner, your employer or pension provider deducts income tax, USC (Universal Social Charge) and PRSI before you are paid, based on the tax credits and rate band Revenue has assigned to you. Much of the year-end work happens automatically. But you can — and often should — file an Income Tax Return through Revenue’s online portal, myAccount. You sign in, complete two-factor authentication, go to “PAYE Services” and review your tax for the year. This is where you claim extra tax credits, reliefs (such as medical expenses or remote-working relief) and declare any additional income. About five working days after you submit, Revenue places a Statement of Liability in your “My Documents” folder. It confirms whether you overpaid (refund due) or underpaid tax for that year. You can generally review and claim for up to four years back. The second system is self-assessment. If you have meaningful non-PAYE income — self-employment profits, rental income, investment income, or you are a proprietary director — you are likely a “chargeable person.” A common trigger is net non-PAYE income of around €5,000 or more. Chargeable persons must register for the Revenue Online Service (ROS) and file Form 11, a fuller return where you calculate your own liability. Alongside the Form 11 you pay two things: the balance of tax due for the previous year, and preliminary tax — an advance payment toward the current year. To avoid interest charges, preliminary tax is generally at least 90% of the current year’s final liability or 100% of the prior year’s. The two routes also have different deadlines, and the difference is worth real money. This is summarised in the calculation box below. (As of 2026; volatile figures should be confirmed against the official Revenue source.)

ExampleSelf-assessment example (2025 tax year, paid in 2026): A sole trader has a final income tax liability of €10,000 for 2025. By the deadline she files Form 11 on ROS and pays the €10,000 balance for 2025. At the same time she pays preliminary tax for 2026 — choosing 100% of her 2025 liability, so €10,000 — to stay safe from interest. Total paid on the deadline: €20,000. Key 2026 dates: the standard pay-and-file deadline is 31 October 2026 (paper). If she both pays and files online through ROS, the extended deadline is around mid-November 2026 (18 November 2026 was the confirmed ROS date). (As of 2026; confirm current figures and dates on revenue.ie.)
Use Kontoo to track your income, expenses and set aside money for a tax bill throughout the year, then file through Revenue’s official myAccount or ROS portals (revenue.ie) when the time comes.

In depth

myAccount vs ROS — two different portals

Revenue runs myAccount for PAYE and personal services, and ROS (Revenue Online Service) for self-assessed and business taxpayers. If you become a chargeable person you typically move from myAccount to ROS and file Form 11 there. Knowing which portal you need avoids wasted time at deadline.

Why preliminary tax exists

Because the self-employed are not taxed at source like PAYE workers, Revenue collects tax close to when income is earned by asking for an advance (preliminary tax) on the current year while you settle the previous year. Setting money aside monthly — for example in a dedicated savings pot — turns a large October bill into something manageable.

Interest and surcharges for late filing

Missing the pay-and-file deadline can lead to a surcharge on the tax due (a percentage that increases the longer you are late) plus daily interest on unpaid amounts. Filing on time, even if you cannot pay everything immediately, generally limits the penalties — contact Revenue early if you are struggling.

Checklist

  • Do you know whether you are in the PAYE system, the self-assessment system, or both?
  • Can you name the document Revenue issues after a PAYE return that shows a refund or underpayment (the Statement of Liability)?
  • Do you know the standard pay-and-file deadline (31 October) and that ROS online filing gets an extension to around mid-November?
  • Do you understand that self-assessed people pay both last year’s balance and this year’s preliminary tax on the same date?

Common myths

Myth: “PAYE workers never need to do a tax return.”

Reality: PAYE handles most of your tax automatically, but filing a return in myAccount is how you claim missed credits and reliefs and get a refund. Many people leave money unclaimed by skipping it. You can usually go back up to four years.

Myth: “Filing on ROS gives me weeks longer to pay, so I can relax until then.”

Reality: The extended deadline (around mid-November) only applies if you both pay and file online through ROS — and the full balance plus preliminary tax is still due then. It is more time, not less tax, and missing it can mean interest and surcharges.

Frequently asked questions

I am a regular employee — do I have to file anything?

Not always, but it is often worth it. PAYE collects your tax automatically, but filing an Income Tax Return through myAccount lets you claim credits, reliefs and expenses you may have missed and triggers a Statement of Liability. If you overpaid, that is how you get your refund. Reviews can generally be requested for up to four years back.

How do I know if I must use Form 11 self-assessment?

You are normally a “chargeable person” if you have net non-PAYE income of around €5,000 or more — for example from self-employment, rental property, or investments — or significant gross non-PAYE income. Chargeable persons file Form 11 on ROS and self-assess. If you only have small amounts of extra income, a simpler return may be enough; check Revenue’s guidance for your situation.

What is preliminary tax?

Self-assessed taxpayers pay preliminary tax — an advance estimate of the current year’s liability — at the same time as the balance for the previous year. To avoid interest, you generally pay at least 90% of the current year’s final liability, or 100% of the prior year’s liability (whichever you choose). This is why setting money aside during the year matters.

All lessons · Glossary · Editorial · Kontoo does the math and explains – this is general education, not tax, legal or financial advice.

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