Tax Residency in Ireland for Individuals: What Revenue Says

Whether an individual is tax resident in Ireland affects how much of their income Ireland can tax, and employers in Dublin and elsewhere often need to understand it when staff arrive from abroad or leave for a posting overseas. This guide sets out what Revenue's own pages say about the residence tests, split-year treatment and ordinary residence, followed by some employer-side points that we label as suggestions. It is general information, not tax advice. If your business is bringing in staff from outside the EEA, the immigration side is a separate matter; see our employment permits guide for Irish employers.

The day-count tests on Revenue's page

Revenue's "Tax residence" page (published 24 November 2025) says a person is resident in Ireland for tax purposes if they are present in Ireland for:

• 183 days or more in a tax year, or
• 280 days or more across the current and the preceding tax year combined.

The same page states that a person will not be resident in Ireland if they are here for 30 days or less in a tax year. It defines the tax year as 1 January to 31 December, inclusive. Because the tests interact, read the page itself rather than relying on a summary when a real case turns on a few days.

What counts as a day

According to the page, a person is present in Ireland for a day if they are here for any part of that day. Two exceptions are described: a day spent airside (in a part of an airport or port that non-travellers cannot access) does not count, and a person who is prevented from leaving on their planned departure day solely by unforeseen and unavoidable circumstances, such as severe weather or an aircraft breakdown, is not treated as present on the following day. Revenue words these exceptions narrowly, so do not assume other situations qualify.

Choosing to be resident

A person who does not meet the day-count tests can still choose to be tax resident in the year they arrive, if they arrive with the intention of being resident in the following tax year and, barring unforeseen circumstances, will be resident in that following year. The page says that someone who makes this choice is taxed on their worldwide income and can claim full tax credits, and must inform Revenue in writing. The page also describes a Letter of Residence, which Revenue can issue to confirm tax residency to a foreign tax authority under a Double Taxation Agreement, requested through "Manage My Record" in myAccount. It cannot be used for other purposes.

Ordinary residence

Revenue's page on ordinary residence (published 24 November 2025) says that a person who has been tax resident in Ireland for three consecutive tax years becomes ordinarily resident from the start of the fourth tax year. If they then leave Ireland, they remain ordinarily resident for three further consecutive tax years. During those years, the page says Irish tax is payable on worldwide income, with exceptions for income from a trade or profession where no part is performed in Ireland, income from an office or employment where all the duties are performed outside Ireland, and other foreign income such as investment income that does not exceed a stated amount (the page gives a figure, which we have not repeated because figures change; check the page). Revenue's guidance on how residence status affects Irish tax adds that the tax you pay depends on both residence and domicile. We did not cover domicile, the remittance basis or double taxation treaties, because the pages we opened did not explain them in enough detail.

Split-year treatment for arrivals and departures

Revenue's page on moving to or from Ireland during the tax year (published 24 November 2025) describes split-year treatment in two situations. The detailed pages, both published 20 January 2026, say:

• Year of arrival. Split-year treatment can be requested on employment income if the person is resident in Ireland in that year, was not resident in the previous year and will be resident in the following year. Employment income from the arrival date is taxed normally, income earned abroad before arrival is ignored for Irish tax purposes, and the page says full tax credits are generally given.
• Year of departure. The person must be resident in the year of departure and not resident in Ireland the following year. Employment income up to the departure date is taxed in the normal way, and employment income earned abroad afterwards is ignored for Irish tax purposes. The page says a statement from the employer or a copy of the employment contract may be needed, depending on how long the person will be abroad.

Both treatments apply to employment income only, and the pages say a claim can be made in writing through MyEnquiries in myAccount or to a Revenue office, and, for moves after 31 December 2024, by filing a tax return.

The employer angle

Revenue's page on how residence status affects Irish tax says duties performed in Ireland are taxed through PAYE, even where the employer is foreign, and that a foreign employer may need to register in Ireland and deduct income tax, PRSI and USC. Citizens Information (page edited 14 July 2026) says an employee needs a Personal Public Service Number to work and register for tax, and that the employer deducts PRSI. Neither page sets out an employer's full duties for mobile staff, so check Revenue's PAYE guidance for the specific arrangement. Some perks given to relocating staff may raise separate reporting questions; our benefit in kind guide for employers explains that area. Individuals with income outside PAYE may also want to read our guide to preliminary tax deadlines and payment rules.

Practical steps: our suggestions

These are our suggestions, not Revenue requirements:

• Keep a simple travel log for staff who split time between Ireland and elsewhere, since the tests count days.
• Ask for dates early. The year of arrival or departure can change how payroll should treat income, so get expected start and end dates in writing.
• Check each person's claim route. Revenue's pages describe different ways to claim split-year treatment depending on the date of the move.
• Do not decide residence for the employee. Point them to Revenue's pages or their own adviser.
• Keep copies of contracts and secondment letters, as Revenue may ask for an employer statement or contract.

Learnsignal's offices are off Baggot Street in Dublin, and we offer in-person training from there. For current details, see our CPD pages.

Frequently asked questions

How many days make someone Irish tax resident?

Revenue's page says 183 days or more in a tax year, or 280 days or more across the current and preceding tax years combined. It also says that 30 days or less in a tax year means the person is not resident. Read the page in full for the detail.

Does a part-day count?

Yes, according to Revenue, a person is present for a day if they are here for any part of it, subject to the airside and unforeseen-circumstances exceptions.

Can someone choose to be resident?

Revenue says a person who arrives intending to be resident in the following tax year can choose to be resident in the year of arrival, and must tell Revenue in writing. They are then taxed on worldwide income.

Do employers decide whether an employee is tax resident?

The pages we read do not say that. Residence depends on the individual's days in Ireland, and Revenue invites individuals to claim certain treatments themselves. Employers should keep accurate records and follow Revenue's PAYE guidance.

Is a Letter of Residence available?

Revenue says it can issue a Letter of Residence to confirm residency to a foreign tax authority with which Ireland has a Double Taxation Agreement, requested through myAccount.

Tax rules and Revenue pages are updated, so confirm the current position on revenue.ie before acting.