Ireland expat tax guide
Europe · how a foreigner who moves to Ireland is taxed · 2026 · Mixed
If you move to Ireland, you become a tax resident when day-count residence test: 183 days in a tax year, or the 280-day two-year look-back (min. 30 days each year). As a resident you are taxed on a mixed basis — A new resident who is non-Irish-domiciled is taxed fully on Irish-source income but on foreign income/gains only to the extent remitted to Ireland (remittance basis); a domiciled resident is taxed on worldwide income. The top personal income tax rate is 40%. A foreign pension is treated as: Foreign pension taxed at marginal rates if domiciled; for non-doms the remittance basis can apply (taxed only if remitted to Ireland); treaty-dependent. Ireland also offers the Non-dom remittance basis + SARP regime, which can sharply change this picture. It has a US tax treaty and has a US totalization agreement. Overall it reads as mixed for an inbound mover. General information, not tax advice — verify with Ireland's tax authority.
Source: PwC Worldwide Tax Summaries. Data as of June 2026.
Ireland expat tax at a glance
| Question | Ireland (2026) |
|---|---|
| When you become tax resident | Day-count residence test: 183 days in a tax year, or the 280-day two-year look-back (min. 30 days each year) |
| Residency day-count trigger | 183 days |
| How residents are taxed | Mixed — A new resident who is non-Irish-domiciled is taxed fully on Irish-source income but on foreign income/gains only to the extent remitted to Ireland (remittance basis); a domiciled resident is taxed on worldwide income. |
| Top personal income tax rate | 40% |
| Foreign pension treatment | Foreign pension taxed at marginal rates if domiciled; for non-doms the remittance basis can apply (taxed only if remitted to Ireland); treaty-dependent |
| Foreign capital gains / dividends | Domiciled residents: worldwide gains at 33% CGT, foreign dividends at marginal rates; non-doms: foreign gains/dividends taxed only on the portion remitted to Ireland |
| Special expat / non-dom / retiree regime | Non-dom remittance basis + SARP |
| US income tax treaty | Yes |
| US social-security totalization | Yes |
Source: PwC Worldwide Tax Summaries. Data as of June 2026.
Compiled from the primary source for Ireland, cross-checked against PwC Worldwide Tax Summaries, the OECD, the IRS US-treaty list and the SSA totalization list. Rules change — confirm with the official tax authority. This is not tax advice.
What this means if you relocate to Ireland
The first thing that matters is tax residency: day-count residence test: 183 days in a tax year, or the 280-day two-year look-back (min. 30 days each year). The 183-day line is the headline trigger, but a home, family or business ties can make you resident sooner — so counting days alone is risky.
Once resident, Ireland taxes your worldwide income, so income earned abroad is in scope unless a treaty or special regime says otherwise. The top 40% rate only bites at the highest income band — an average earner pays less.
Foreign pensions and investments
Foreign pension: Foreign pension taxed at marginal rates if domiciled; for non-doms the remittance basis can apply (taxed only if remitted to Ireland); treaty-dependent. Foreign capital gains and dividends: Domiciled residents: worldwide gains at 33% CGT, foreign dividends at marginal rates; non-doms: foreign gains/dividends taxed only on the portion remitted to Ireland. These outcomes can be overridden by a double-tax treaty, which decides whether the source country or Ireland taxes each stream — a key reason retirees should map their specific income against the relevant treaty.
The Non-dom remittance basis + SARP regime
Resident-but-non-Irish-domiciled individuals are taxed on foreign income/gains only to the extent remitted to Ireland, with no annual charge — Ireland did NOT abolish its non-dom regime (unlike the UK in April 2025). SARP (employees only, not retirees) was extended to 31 Dec 2030 with minimum income raised to EUR 125,000 from 2026.
Special regimes have eligibility tests, time limits and sunset dates that change frequently. Treat the summary above as a starting point and verify the current terms with Ireland's tax authority before relying on it.
US citizens and social security in Ireland
| Question | Ireland |
|---|---|
| US income tax treaty? | Yes |
| US social-security totalization agreement? | Yes |
| Tax basis for residents | Mixed |
| Top personal income tax | 40% |
A US tax treaty with Ireland helps reassign taxing rights and reduce withholding, and US citizens lean on the Foreign Earned Income Exclusion and Foreign Tax Credit to avoid double income tax. A totalization agreement means you generally pay social-security contributions to only one of the two countries. See our guides on FEIE vs the Foreign Tax Credit and totalization agreements.
Countries with a similar expat-tax profile to Ireland
| Country | Tax basis | Top income tax | Special regime |
|---|---|---|---|
| Ireland (this country) | Mixed | 40% | Non-dom remittance basis + SARP |
| Chile | Mixed | 40% | 3-year foreign-income exemption |
| Indonesia | Mixed | 35% | 4-year territorial concession for skilled expats |
| Bulgaria | Worldwide | 10% | None |
| Romania | Worldwide | 10% | None |
| United Kingdom | Mixed | 45% | 4-year Foreign Income and Gains (FIG) regime |
Frequently asked questions
When do you become a tax resident of Ireland?
Day-count residence test: 183 days in a tax year, or the 280-day two-year look-back (min. 30 days each year). The headline trigger is 183 days. Once resident, Ireland taxes you on income on a basis that depends on your status (see the profile). This is general information for 2026, not tax advice — verify with the official authority.
How does Ireland tax a foreign pension?
Foreign pension taxed at marginal rates if domiciled; for non-doms the remittance basis can apply (taxed only if remitted to Ireland); treaty-dependent. Tax treaties can reassign who taxes a pension, so the outcome depends on your nationality and the source country. Confirm with a cross-border adviser before relying on this.
What is the Non-dom remittance basis + SARP regime in Ireland?
Resident-but-non-Irish-domiciled individuals are taxed on foreign income/gains only to the extent remitted to Ireland, with no annual charge — Ireland did NOT abolish its non-dom regime (unlike the UK in April 2025). SARP (employees only, not retirees) was extended to 31 Dec 2030 with minimum income raised to EUR 125,000 from 2026. It is a headline summary for 2026; conditions and sunset dates change, so verify the current rules with Ireland's tax authority.
Is Ireland good for US citizens or retirees?
Ireland has a US income tax treaty and has a US social-security totalization agreement. The totalization agreement means you generally pay social-security contributions to only one country. US citizens are taxed on worldwide income wherever they live, but the Foreign Earned Income Exclusion and Foreign Tax Credit usually prevent double income tax. Not tax advice.
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Sources & accuracy
Profile for Ireland compiled from its primary source, cross-checked with PwC Worldwide Tax Summaries, the OECD, the IRS US-treaty list and the SSA totalization list. Top rate 40%; USC up to 8% + PRSI give a combined marginal ~52%. A deemed-remittance charge can apply to very-long-term non-doms (15+ years resident). US treaty + totalization (1993). Data as of June 2026 (2026 position). This page is general information, not tax advice — tax residency and special regimes are fact-specific and change often, so verify with Ireland's official tax authority and a qualified cross-border adviser before acting. See our methodology and disclaimer.
Last updated: 2026-06-21