Country topic
Tax in Ireland
You are tax resident in Ireland if you are present for 183 days or more in a tax year (1 January to 31 December), or 280 days or more in total across the current and previous tax year together; you are not resident if you are here 30 days or fewer in a tax year. You are present on a day if you are here for any part of it, except that time airside or delayed by unforeseen circumstances can be excluded. [T1] If you do not meet the day tests you can choose to be tax resident in the year you arrive, if you arrive intending to be resident in the following tax year and, barring unforeseen circumstances, will be. You are then taxed on worldwide income and can claim full tax credits, and you must tell Revenue in writing. Revenue can issue a Letter of Residence to prove residency to a foreign tax authority where Ireland has a double taxation agreement. [T1]
What we found
The research, with its sources.
Research information, not advice. Rules change, so check the source before you act on one.
- You are tax resident in Ireland if you are present for 183 days or more in a tax year (1 January to 31 December), or 280 days or more in total across the current and previous tax year together; you are not resident if you are here 30 days or fewer in a tax year. You are present on a day if you are here for any part of it, except that time airside or delayed by unforeseen circumstances can be excluded. [T1]
- If you do not meet the day tests you can choose to be tax resident in the year you arrive, if you arrive intending to be resident in the following tax year and, barring unforeseen circumstances, will be. You are then taxed on worldwide income and can claim full tax credits, and you must tell Revenue in writing. Revenue can issue a Letter of Residence to prove residency to a foreign tax authority where Ireland has a double taxation agreement. [T1]
- If you have been tax resident in Ireland for three consecutive tax years, you become ordinarily resident from the start of the fourth. If you leave, you stay ordinarily resident for three more years, and pay Irish tax on worldwide income except income from a trade, profession or employment with no part performed in Ireland, and other foreign income of €3,810 or less (if it is over €3,810 the full amount is taxable). [T2]
- For tax year 2026 the standard rate band is €44,000 at 20% for a single person with the balance at 40%, €48,000 for a single person qualifying for the Single Person Child Carer Credit, and €53,000 for a married or civil-partnered couple with one income (up to €35,000 more when both earn, capped at the lower earner's income). The Single Person tax credit is €2,000, and a PAYE employee also gets a €2,000 employee credit. Revenue notes that Budget 2027 changes were announced on 6 October 2026; they need a Finance Bill, so 2027 rates are unknown. [T3] [T15]
- USC is a tax on total income, including employment, self-employed, rental and dividend income. If total income is over €13,000 you pay USC on the full amount; the 2026 standard rates are 0.5% on the first €12,012, 2% on the next €16,688, 3% on the next €41,344 and 8% on the balance. There is no relief from USC for employee pension contributions. Reduced rates exist for some people and were not read. PRSI contributions were not read, so their rates are unknown. [T4] [T5]
- Your domicile affects how foreign income is taxed. Under the remittance basis, a person who is resident but not ordinarily resident and not domiciled in Ireland pays Irish tax only on Irish-source income and on foreign income to the extent it is remitted into Ireland by wire, mail or online transfer. Domicile broadly means living in a country with the intention of living there permanently; you keep your domicile of origin unless you show clear evidence of a new one. Revenue also describes a domicile levy of €200,000 a year for Irish-domiciled people above set income and property limits. [T6]
- If you are non-resident, non-ordinarily resident and domiciled in Ireland, you pay Irish tax on Irish income, income from a trade, profession or employment performed in Ireland, and gains in Ireland. If you are non-resident, non-ordinarily resident and not domiciled, you pay on Irish income and work performed in Ireland and on gains on Irish specified assets only (land, buildings, minerals and assets of a trade carried on in Ireland). Tax credit entitlements for non-residents vary and were not read in full. Revenue's pages we read do not say whether pay from a foreign employer for work done while you live in Ireland counts as Irish-source or foreign, so that is unknown. [T7]
- Foreign pensions, including UK and US pensions, are generally taxable in Ireland: liable to income tax and USC but not PRSI. Foreign State pensions are not liable to USC. Some foreign pensions are not taxable in Ireland, for example foreign occupational and social security pensions that would not be taxable if the recipient lived in the country that granted them. A PAYE taxpayer must tell Revenue about a foreign pension, which reduces the tax credits and rate band on their Tax Credit Certificate. [T8]
- Revenue says Ireland has signed double taxation agreements with 78 countries, 75 of them in effect, covering income tax, USC, corporation tax and capital gains tax. The IRS lists an Ireland income tax treaty signed at Dublin on 28 July 1997, in effect from 1 January 1998, with an amending convention effective 1 September 2000. Australia's Treasury lists a double tax agreement signed on 31 May 1983 and in force from 21 December 1983. New Zealand lists Ireland among agreements in force. Whether Canada has an agreement in force with Ireland, and what each agreement says about pensions or self-employment income, is unknown here. [T9] [T10] [T11] [T12] [T17]
- US citizens and residents living abroad generally have to file income tax returns, estate tax returns and gift tax returns and pay estimated tax in the same way as those living in the United States. The rules of Canada, Australia and New Zealand for people who move abroad were not checked, so they are unknown here. [T13]
- The US-Ireland social security agreement, in effect since 1 September 1993, covers old age (contributory) pension, retirement pension, surviving spouses' pension, invalidity pension, orphans' allowance, death grant and the liability for employment and self-employment contributions. Self-employed workers who live in the United States are assigned US coverage; those who live in Ireland are assigned Irish coverage, and a certificate of coverage from Ireland's PRSI Special Collection Section shows exemption from US contributions. The text read gives no rule for employees, so that is unknown. Workers exempted from Irish coverage generally cannot receive Irish unemployment, maternity, injury or health benefits. Agreements between Ireland and Canada, Australia or New Zealand were not checked, so they are unknown. [T14] [T18]
- The US-Ireland treaty has a saving clause: each country may tax its own residents, and the US its citizens, as if the treaty had not come into effect, so it does not remove a US citizen's filing. If both countries treat you as resident, the tie-breaker runs permanent home, then closer personal and economic relations, then habitual abode, then nationality. The US allows a credit for Irish tax paid, and social security payments from one country to a resident of the other are taxable only in the country of residence. [T16]
- For tax year 2026 the US foreign earned income exclusion is capped at US$132,900 per person, and the physical presence test needs 330 full days in a foreign country or countries in any 12 consecutive months. You cannot claim a foreign tax credit (Form 1116) on foreign tax paid on income you exclude. Foreign financial accounts above US$10,000 in total at any time in the year must be reported on an FBAR. [T19] [T20] [T21] [T22]
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Questions about Tax in Ireland.
When am I tax resident in Ireland?
You are resident if you are in Ireland 183 days or more in a tax year (1 January to 31 December), or 280 days or more across the current and previous tax year together; you are not resident if you were here 30 days or fewer in the year. Any part of a day counts. You can also choose to be resident in your arrival year.
What are Ireland's income tax and USC rates?
For 2026 a single person pays 20% on the first €44,000 and 40% above. USC is 0.5% on the first €12,012, 2% on the next €16,688, 3% on the next €41,344 and 8% after that, and applies to all income once total income passes about €13,000. To be safe, have more than €14,000. Budget 2027 changes (6 October 2026) are not yet law.
Do I pay Irish tax on income from abroad?
A resident who is not ordinarily resident and not domiciled in Ireland pays Irish tax on Irish income and on foreign income only to the extent it is remitted to Ireland (the remittance basis). Domicile means living in a country intending to stay permanently. Ask an adviser.
How is a foreign pension taxed in Ireland?
Revenue says foreign pensions, including UK and US pensions, are generally taxable in Ireland under income tax and USC but not PRSI. Foreign State pensions are not liable to USC. Some foreign occupational and social security pensions are not taxable if they would be tax-free in the country that granted them.
Does Ireland have a tax treaty with my country?
Revenue says Ireland has signed 78 double taxation agreements, 75 in effect. The IRS lists a US treaty signed 28 July 1997 (in effect 1 January 1998, amended from 1 September 2000); Australia lists a 1983 agreement and New Zealand an agreement in force. Canada was not checked here. Ask an adviser.
Do US citizens still file US tax returns while living in Ireland?
Yes. US citizens abroad file on worldwide income. The treaty's saving clause lets the US tax its citizens as if it did not exist, and the US allows a credit for Irish tax paid. For 2026 the foreign earned income exclusion is capped at US$132,900 per person, and foreign accounts above US$10,000 in total need an FBAR.
Sources
Where each figure comes from.
Every figure on this page links to the page we read, with the date we checked it.
- [T1] How to know if you are resident for tax purposes, Revenue Commissioners (Irish tax authority). Checked 16 October 2026. Published 24 November 2025. 183 days in a tax year, or 280 days over two years together; 30 days or fewer is not resident.
- [T2] How to know if you are ordinarily resident for tax purposes, Revenue Commissioners (Irish tax authority). Checked 16 October 2026. Published 24 November 2025. Ordinarily resident from the fourth consecutive resident year.
- [T3] Tax rates, bands and reliefs, Revenue Commissioners (Irish tax authority). Checked 16 October 2026. Tax year 2026: 20% up to 44,000 euros for a single person, balance at 40%. The page notes Budget 2027 changes announced on 6 October 2026.
- [T15] How your Income Tax is calculated (2026 rate band and credits), Revenue Commissioners (Irish tax authority). Checked 16 October 2026. For a single PAYE employee in 2026 the rate band is 44,000 euros and tax credits total 4,000 euros (a 2,000 euro single person's credit and a 2,000 euro employee credit).
- [T4] Universal Social Charge (USC): overview, Revenue Commissioners (Irish tax authority). Checked 16 October 2026. Published 12 December 2025. USC is due on the full income if total income exceeds 13,000 euros.
- [T5] Standard rates and thresholds of USC, Revenue Commissioners (Irish tax authority). Checked 16 October 2026. 2026: 0.5%, 2%, 3% and 8% bands.
- [T6] What is domicile and the domicile levy?, Revenue Commissioners (Irish tax authority). Checked 16 October 2026. Published 24 November 2025. Remittance basis for people resident, not ordinarily resident and not domiciled.
- [T7] Tax and tax credits for non-residents, Revenue Commissioners (Irish tax authority). Checked 16 October 2026. How non-residents are taxed depends on ordinary residence and domicile.
- [T8] Taxation of foreign pensions, Revenue Commissioners (Irish tax authority). Checked 16 October 2026. Published 15 October 2026. Foreign pensions, including UK and US pensions, are generally taxable in Ireland.
- [T9] Double Taxation Treaties, Revenue Commissioners (Irish tax authority). Checked 16 October 2026. Published 18 February 2026. 78 agreements signed, 75 in effect.
- [T10] Ireland - Tax treaty documents, Internal Revenue Service. Checked 16 October 2026. Lists the income tax treaty of 1997, its technical explanation and an amending convention of 1999.
- [T11] Income tax treaties (list of Australia's treaties), Australian Government, Treasury. Checked 16 October 2026. Ireland: double tax agreement signed 31 May 1983, in force 21 December 1983.
- [T12] Tax treaties: double tax agreements in force, Inland Revenue, New Zealand (Tax Policy). Checked 16 October 2026. Ireland is on the list of double tax agreements and protocols in force with New Zealand.
- [T17] Table 3: list of tax treaties (updated through 26 September 2025), Internal Revenue Service. Checked 16 October 2026. Ireland is listed with a general effective date of 1 January 1998; the amending convention took effect on 1 September 2000.
- [T13] US citizens and residents abroad: filing requirements, Internal Revenue Service. Checked 16 October 2026. US citizens abroad generally file in the same way as those living in the United States.
- [T14] Totalization Agreement with Ireland (Internet Archive copy of 20 April 2026), US Social Security Administration. Checked 16 October 2026. Self-employed workers who live in the US are covered by the US; those who live in Ireland by Ireland. The live page refused automated access.
- [T18] US social security agreements: overview and list (Internet Archive copy of 10 October 2026), US Social Security Administration. Checked 16 October 2026. Ireland is on the list of countries with a US social security agreement, effective 1 September 1993. ssa.gov refuses automated access, so this is the Internet Archive copy.
- [T16] Convention between the United States and Ireland for the avoidance of double taxation (signed at Dublin, 28 July 1997), Internal Revenue Service (treaty text). Checked 16 October 2026. Article 1(4) saving clause; Article 4(3) tie-breaker; Article 18(1)(b) social security payments taxable only in the state of residence; Article 24 US credit for Irish tax.
- [T19] Foreign earned income exclusion, Internal Revenue Service. Checked 16 October 2026. Maximum exclusion for tax year 2026: 132,900 US dollars per person.
- [T20] Physical presence test, Internal Revenue Service. Checked 16 October 2026. 330 full days in a foreign country or countries in any 12 consecutive months.
- [T21] Foreign tax credit, Internal Revenue Service. Checked 16 October 2026. Claimed on Form 1116; no credit for foreign tax on income you exclude.
- [T22] Report of Foreign Bank and Financial Accounts (FBAR), Financial Crimes Enforcement Network (FinCEN). Checked 16 October 2026. A US person must file an FBAR if foreign financial accounts exceed 10,000 US dollars in aggregate at any time in the year.