Tax residency
When Ireland taxes you
A visa lets you stay. It does not decide who taxes you. In Ireland that turns on a day count of about 183 days and the ties you keep, and it is the line that quietly reshapes what you take home.
When you become tax resident
You are Irish tax resident if present 183 days or more in a tax year, or 280 days or more across the current and prior year combined (with at least 30 days in each year); non-domiciled residents can use the remittance basis on foreign income Two tests: (1) 183 days or more present in the tax year, or (2) 280 days or more across that year and the preceding year combined, but a year with 30 days or fewer of presence is ignored (the 30-day floor). Any part of a day counts as a day present. Ordinary residence follows after three consecutive resident years. Non-domiciled but resident individuals are taxed on Irish source income and gains in full, but foreign income and gains only to the extent remitted into Ireland (the remittance basis), with no annual charge; a deemed remittance regime can apply to long-term (15+ year) residents.
Also a 280-day test across two consecutive years.
How your income is taxed
Income tax is 20% up to 44,000 euro (single) and 40% above; adding USC (up to 8%) and employee PRSI (about 4.2%) brings the top marginal rate to roughly 52% Income tax bands for 2026: 20% on income up to 44,000 euro for a single person (53,000 euro one-income married couple), 40% on the balance. On top: Universal Social Charge at 0.5% / 2% / 3% / 8% bands (8% on income over 70,044 euro; source: Citizens Information USC page https://www.citizensinformation.ie/en/money-and-tax/tax/income-tax/universal-social-charge/), plus employee PRSI at about 4.2% of gross (rising to 4.35% from 1 October 2026). Combined, the top marginal rate for higher earners is about 52%.
The trap below the day count
Staying under 183 days does not make you safe. A permanent home available to you, a partner or children living in Ireland, or your centre of vital interests can create residence well below the count. And where two countries both claim you in the same year, a tax treaty tie-breaker decides, on your permanent home first, then your centre of vital interests, then where you habitually live. This is the part worth taking to a specialist.
Count your days against the threshold
The tracker counts the days you spend in each country and shows which cross their tax-residency line, Ireland included.
Keep reading
Researched from public sources, checked Jul 2026. Not expert-reviewed, and not legal or tax advice. Rules change; the sources and dates above are how you judge whether to rely on this or take it to a professional.