October has a way of coming around quickly, especially when there’s a tax return waiting to be filed.
For expats in Ireland, that return might involve a few things you haven’t dealt with before. Maybe you still own property in another country or aren’t quite sure what Revenue needs to know about your overseas finances.
These are questions you don’t want to be figuring out with three days left on the clock.
With the 31 October Irish tax deadline approaching, here’s what to check, what to gather, and what you need to know before filing.
What is the tax filing deadline for expats in Ireland?
The tax filing deadline for expats is the same as it is for everyone else in Ireland who falls under self-assessment.
For 2026, the standard deadline is 31 October. By then, you generally need to:
- File your 2025 Income Tax return
- Pay any remaining tax you owe for 2025
- Pay preliminary tax towards your 2026 bill
If you use Revenue Online Service (ROS), you can get a little extra time. For 2026, the deadline is extended to 18 November if you both file your Form 11 and make the required payment through ROS.
FAQs
What is preliminary tax?
Preliminary tax is an advance payment towards your tax bill for the current year.
When you file your 2025 return in 2026, you may also need to make a payment towards the tax you expect to owe for 2026. That payment can cover Income Tax, Universal Social Charge (USC) and Pay Related Social Insurance (PRSI).
Revenue has a useful breakdown of Income Tax, USC and PRSI available here.
Why am I paying tax for 2026 before the year is over?
This is because Ireland’s self-assessment system works on a Pay and File basis.
At the same time as you settle any remaining tax due for 2025, you also make a payment on account towards 2026. Your final 2026 liability is worked out later when you file that year’s return.
What do I need to complete when filing Form 11?
When filling out your Form 11, there are a few different sections to work through depending on your income and circumstances. As part of the form, Revenue also requires you to complete the IT Self-Assessment panel..
The IT Self-Assessment is where you confirm your tax calculation for the year, while the Statement of Net Liabilities records the amounts you need to pay Revenue. If you’re using the extended ROS deadline, you’ll also need to make the required payment through ROS.
Do I need to file an Irish tax return by 31 October as an expat?
Possibly, but being an expat doesn’t automatically mean you need to file a Form 11.
If all of your income comes through an Irish PAYE job and your tax is dealt with through payroll, you generally won’t need to file one just because you’ve moved to Ireland.
You may still need to register for self-assessment if you’re self-employed, or if your taxable non-PAYE income is more than €5,000 or your gross non-PAYE income is more than €30,000. This could include rental, investment or foreign income.
If your additional non-PAYE income stays below those limits, you may still need to declare it, but this can generally be done through a Form 12 using Revenue’s myAccount.
FAQs
What is PAYE?
PAYE stands for Pay As You Earn. It’s the system used to collect tax from employees in Ireland. Your employer deducts Income Tax, USC and PRSI from your pay before you receive it.
What is non-PAYE income?
It’s income that isn’t taxed through an employer’s payroll. This can include things like self-employed earnings, rental income, investment income and foreign income.
What is the difference between Form 11 and Form 12?
Form 11 is the annual Income Tax return used by people within the self-assessment system. Form 12 is generally used by PAYE taxpayers who need to declare some additional income or claim tax credits and reliefs but don’t need to register for self-assessment. Form 12 taxpayers do not have preliminary tax obligations.
Note: You generally have four years after the end of the relevant tax year to submit a PAYE Income Tax Return and claim a refund.
How do residence and domicile affect your Irish tax return?
Before you work out what income belongs on your Irish tax return, you need to understand tax residence and domicile. They’re two different things, and both can directly affect how Ireland taxes your foreign income and gains.
Tax residence is mainly based on how much time you spend in Ireland. You’re generally Irish tax resident if you spend:
- 183 days or more in Ireland in a tax year, or
- 280 days or more across two consecutive tax years, as long as you spend more than 30 days here in each year.
Domicile is where your permanent home is considered to be. It usually starts with the domicile you have at birth and doesn’t automatically change just because you move to Ireland.
If you’re resident and domiciled in Ireland, you’ll generally be taxed here on your worldwide income and gains.
If you’re resident in Ireland but not Irish domiciled, different rules can apply to some foreign income and gains, including the remittance basis.
What income do you need to include on your Irish tax return?
If the 31 October deadline applies to you, your return needs to cover the relevant income you received during the 2025 Irish tax year, which ran from 1 January to 31 December 2025.
For expats, that can mean looking beyond your Irish salary and including income you still receive from abroad.
Depending on your circumstances, this could include:
- Self-employed income, including freelance work, consulting, nixers, fees and commissions
- Rental income from property in Ireland or overseas
- Foreign employment income from work carried out abroad
- Investment income, including dividends, deposit interest and income from shares
- Pensions and foreign pensions
- Income from trusts
- Certain social welfare payments that are taxable in Ireland
- Maintenance payments, where they are taxable
- Other income that hasn’t already been taxed through PAYE
The important thing is to look at all of your income for the year, rather than assuming something doesn’t count because it came from outside Ireland or because it was already taxed overseas.
For foreign income in particular, what you need to declare and how it is taxed will depend on factors such as your Irish tax residence and domicile.
FAQs
What records should I keep for foreign income?
Keep anything that shows where the income came from, how much you received and any tax already paid overseas. That could include foreign payslips, rental statements, pension documents, dividend statements or tax certificates.
Having these ready can make it much easier to complete your return and support the figures you report.
Do I need to convert foreign income into euros?
Yes. Foreign income generally needs to be reported in euro on your Irish tax return.
That means converting the amount using an appropriate exchange rate for the relevant period, rather than simply entering the amount in the original currency.
Can I claim credit for tax I already paid abroad?
In some cases, yes. If the same income is taxable in Ireland and another country, you may be able to claim double taxation relief. The amount of relief available depends on the type of income involved and whether Ireland has a tax treaty with the country concerned.
What happens if I realise I left income off my return?
You can generally amend a return after it has been filed through ROS. If you spot a mistake or omission, it’s better to correct it rather than leave the return as it is. Revenue allows self-assessed taxpayers to amend filed returns through ROS. Interest and penalties may still apply.
What do you need to have ready before filing your Irish tax return?
Once you know you need to file, the next job is getting everything together before you sit down to complete the return.
For expats, that can mean pulling information from both Ireland and abroad, so give yourself a bit of time to track down anything you don’t already have.
Depending on your circumstances, you may need:
- Records of any self-employed or freelance income earned during 2025
- Rental income and allowable expenses for Irish or overseas property
- Statements showing foreign interest, dividends or other investment income
- Pension statements for any foreign pension income received
- Details of foreign tax already paid
- Records of any shares, property or other assets sold during the year
- Receipts or documents for tax credits and reliefs you plan to claim
- Your PPS number and access to ROS if you’re filing a Form 11 online
Getting this together early gives you time to spot anything that’s missing before the deadline starts getting uncomfortably close.
Can expats get an extension on the 31 October tax deadline?
Yes, if you file and pay online through Revenue Online Service (ROS).
When you’re planning around the key tax dates, the main ones to keep in mind for 2026 are 31 October for the standard Pay and File deadline and 18 November for eligible ROS users.
To get the extra time, you need to do both of the following through ROS:
- File your 2025 Form 11
- Make the required payment, including any 2025 Income Tax balance and 2026 preliminary tax
If you only file through ROS but pay another way, or make the payment through ROS without filing there, the extension doesn’t apply. Your deadline remains 31 October.
Example:
Say you still owe €1,000 in tax for 2025 and also need to make a preliminary tax payment towards 2026. If you file your Form 11 through ROS and make both required payments through ROS by 18 November, you can use the extended deadline.
But if you file online and make the payment another way, or pay through ROS without filing the return there, the extension doesn’t apply. Your deadline remains 31 October.
What tax credits and reliefs should expats check before filing?
When you’re preparing your tax return, it’s easy to focus only on the income you need to report and the tax you might owe.
But this is also the time to check whether you’re entitled to any tax credits or reliefs that could reduce your final bill.
Depending on your circumstances, these could include:
- Pension contribution relief: Contributions to certain pension schemes, including PRSAs, RACs, occupational pensions and some qualifying overseas pension plans, may qualify for Income Tax relief. You can backdate contributions made in the current year by 30 October to the previous year subject to age-related limits.
- Health expense relief: You may be able to claim relief for qualifying medical and health expenses you paid yourself. You’ll need to keep receipts to support the claim.
- Rent Tax Credit: If you rented a qualifying property during 2025, you may be able to claim the Rent Tax Credit through your Form 11.
- Double taxation relief: If you paid tax on the same income in another country, you may be able to claim relief so you aren’t taxed twice on it in full. The exact treatment depends on the type of income and the country involved.
- Other personal tax credits: Your personal circumstances may also qualify you for additional credits, such as the Home Carer Tax Credit, Single Person Child Carer Credit or Dependent Relative Tax Credit. Some credits are given automatically, while others have to be claimed.
The main thing is not to assume Revenue will automatically apply everything you’re entitled to.
Some credits and reliefs need to be actively claimed on your return, so it’s a good idea to review them before you file rather than realising afterwards that you missed one.
For expats, pension contributions and foreign tax paid can be especially important to check, as the treatment can depend on where the pension is held, where the income arose and your wider tax position.
Need help getting your Irish tax return sorted? That’s what we’re here for
If your tax situation stretches beyond a straightforward Irish salary, the tax return deadline might have you a bit stressed out.
Foreign income, overseas pensions, residence rules, tax credits, and preliminary tax can all add extra questions when you’re trying to get everything filed on time.
Expat Taxes works specifically with people living in Ireland who have income, assets, pensions or tax obligations across more than one country.
The team can help with things like:
- Working out whether you need to file a Form 11
- Reviewing your Irish residence and domicile position
- Reporting foreign income correctly
- Checking whether double taxation relief applies
- Calculating preliminary tax and any balance due
- Reviewing credits and reliefs before you file
- Preparing and filing your Irish tax return
Book a consultation with Expat Taxes before the deadline and make sure your return is filed correctly, with the right income reported and any available reliefs taken into account.
If you require support with your tax return please drop us a note to info@expattaxes.ie so we can provide a quote.
DISCLAIMER: The material in this article is for general information purposes only and does not constitute legal or taxation advice. Legal, financial, investment and taxation advice should be sought before acting or refraining from acting. All information and taxation rules are subject to change without notice. Expat Taxes Limited and RemitEase Limited (hereafter ‘the parties’) accept no liability for any action taken based on the information in this article or any of the articles in our blog series. The parties do not provide financial planning, investment, or mortgage advice; this article is provided only for general information. We are not authorised/licensed to provide financial advice, and this article should not be considered to constitute advice of this type in any respect.
Written by Stephanie Wickham (Chartered Tax Adviser, Fellow of Chartered Accountants Ireland)
Known for her ability to simplify even the most complex tax matters, Stephanie has worked extensively across income tax, corporate taxes, capital gains, and inheritance taxes for over 10 years. Having experienced life as an expatriate herself, Stephanie understands the stress that can come with international moves -— and how daunting tax compliance can feel. Her philosophy is simple: tax advice should be straightforward, clear, and tailored to each individual. Stephanie hosts the Taxbytes for Expats podcast, and her insights have been published several times in respected publications such as the Irish Times, Irish Tax Review, the Irish Independent, and TaxPoint.
