How Irish income tax works
Irish income tax is deducted from your pay automatically under the PAYE system. Three charges come out of your gross salary: Income Tax (20% on income up to your standard rate band, 40% above), the Universal Social Charge (USC) (0.5%, 2%, 3% and 8% bands) and PRSI (4.2% on earnings above €441 a week in 2026, rising to 4.35% from 1 October 2026). For a single person in 2026, the standard rate band is €44,000 — you pay 20% on the first €44,000 and 40% on the rest.
Tax credits: your first priority
Tax credits reduce your tax bill euro-for-euro, and every employee gets two: the personal tax credit of €2,000 and the employee tax credit of €2,000 (€4,000 in total for 2026). Together with the €44,000 band, this means a single person pays no income tax on the first €20,000 or so of earnings. If you are married or in a civil partnership, you can choose joint assessment, which gives a higher band (€53,000 for one income, up to €88,000 for two incomes) and two sets of credits. Parents may also qualify for the single person child carer credit (€1,900) or home carer credit (€1,950).
Avoiding emergency tax
The most common problem newcomers hit is emergency tax: if Revenue does not have your details when you start work, your employer must deduct tax at the higher 40% rate with no credits or bands until your employer sends your details to Revenue. To avoid it: register for myAccount on revenue.ie as soon as you have your PPS number, then register your new job (employer's name and PAYE reference number, start date and your PPS number). Your employer will receive a Revenue Payroll Notification (RPN) with your credits and band, usually within a few days. If you are over-taxed, any overpayment is refunded automatically through your payslip or an annual balancing statement.
Special rules for people moving to Ireland
Your Irish tax residence status is determined by days spent in Ireland: you are resident if you spend 183+ days here in a tax year, or 280+ days over two consecutive years. Your first year is usually a 'split year', so you only pay Irish tax on income earned after you arrive (with some exceptions). If you are employed by a multinational and assigned to Ireland, check whether you qualify for the Special Assignee Relief Programme (SARP), which gives 30% income tax relief on earnings above €75,000 for qualifying assignees (extended to 2027). The Foreign Earnings Deduction also gives relief on income from workdays spent in certain countries (e.g., Brazil, India, China) for qualifying employees. Both have detailed conditions — check Revenue's guidance.
Other taxes to know about
There is no local income tax, no social security number separate from your PPS number, and no filing requirement for most employees — if your only income is from one PAYE job, everything is handled automatically. You will need to file an annual return in myAccount only if you have other income (rental income, foreign income, shares) or want to claim reliefs (medical expenses, tuition fees, rent tax credit of up to €1,000 for tenants). Stamp duty applies to property purchases (1% up to €1m), and Local Property Tax applies to homeowners. If you keep assets abroad, check whether you become Irish-domiciled for capital taxes after 3 years of residence.
Action steps
- Get your PPS number before your first payday.
- Register for myAccount and add your job to avoid emergency tax.
- If married, decide on joint assessment — it is usually more tax-efficient.
- Keep receipts for medical expenses and rent — both attract tax relief.
- If you are on a cross-border assignment, ask your employer's tax team about SARP before you move.
A worked example
Take a single newcomer earning €55,000 in 2026. Income tax: €44,000 at 20% (€8,800) plus €11,000 at 40% (€4,400) = €13,200, minus €4,000 of credits (personal + employee) = €9,200. USC: €12,012 at 0.5% (€60) + €16,688 at 2% (€334) + €14,300 at 3% (€429) = about €823. PRSI: 4.2% on earnings above €441 a week (€52,107 × 4.2% ≈ €2,189) for most of 2026 — wait, PRSI applies to all earnings above €441 per week, i.e., €55,000 − (€441 × 52 = €22,932) = €32,068 at 4.2% ≈ €1,347. Total deductions ≈ €11,370, leaving about €43,600 net — roughly €3,630 a month. That is the reality of Irish tax: roughly 21% of gross for a €55,000 single earner, rising towards 30%+ for six-figure salaries.
What counts as taxable income
Irish income tax reaches broadly: employment income, bonuses, benefits-in-kind (company cars, health insurance paid by your employer), rental income, foreign income, and most investment income. Some things are exempt: social welfare payments, Child Benefit, most redundancy lump sums (up to the statutory limits), and savings interest (taxed at source under DIRT at 33%). If you keep a job or business abroad after moving, the split-year residence rules usually mean only income earned after your arrival is taxed in Ireland in year one — but the detail depends on your residence status and the tax treaty between Ireland and your home country, so take advice before structuring anything around it.