Irish income tax, USC and PRSI: how your Dublin paycheck gets taxed

Your first Irish payslip will show three deductions where you're used to federal, state and FICA: income tax, the Universal Social Charge (USC) and Pay Related Social Insurance (PRSI). Here's how each one works in 2026, and how they line up with the return Uncle Sam still expects.

The short version

• Income tax is 20% up to a cut-off, then 40%. In 2026 the 20% band is EUR 44,000 for a single person (about USD 49,100), and most employees get EUR 4,000 in tax credits (about USD 4,470) [1].
• USC is a second income tax on gross pay, from 0.5% to 8%, once your income tops EUR 13,000 (about USD 14,500) [2][3].
• PRSI for most employees is 4.35% of all earnings from October 1, 2026, up from 4.2%, if you earn over EUR 352 a week [4].
• Get a PPS number and register your job with Revenue fast, or you'll pay emergency tax [5].
• The US still taxes you. Irish rates are high enough that the foreign tax credit often wipes out the US bill on salary, but you still file, and the US–Ireland treaty and totalization agreement shape the details [7][9].

USD conversions use the Federal Reserve H.10 rate of October 30, 2026 (EUR 1 = USD 1.1163).

How Irish tax works, in American terms

Ireland runs PAYE (Pay As You Earn), which is close to US withholding but more precise. Revenue, Ireland's IRS, sends your employer a Revenue Payroll Notification with your credits and rate band, and most people are taxed on a cumulative basis that spreads the year's tax evenly [5]. Get it right and many employees never file an annual return, which is a pleasant change from April back home.

Two big differences from the States:

• Credits, not deductions. Ireland doesn't have a standard deduction. You pay tax on gross income, then subtract tax credits from the bill.
• No state or city income tax. One national system covers everyone in Dublin, Cork or Galway.

Income tax: rates, bands and credits for 2026

Income tax rates stay at 20% and 40% [6]. The amount taxed at 20% is your "standard rate cut-off point" [1]:

The two-income increase is capped at the lower of EUR 35,000 or the lower earner's income, and can't be transferred between spouses [1].

The main credits for 2026 [1]:

A note on marriage: if your spouse is still in the States, or isn't working here, Irish assessment rules and your US filing status can interact in surprising ways. A preparer can map out how it plays on both returns.

What Budget 2027 changes

Budget 2027 was announced on October 6, 2026. For 2027, the single person's 20% band rises by EUR 2,500 to EUR 46,500 (about USD 51,900), the Personal, Employee and Earned Income credits rise to EUR 2,125 each (about USD 2,370), and the Rent Tax Credit rises to EUR 1,150 for a single person [6]. Some measures still need legislation, so check Revenue in January.

USC: the "second income tax"

USC is charged on gross income, before pension contributions, and almost no reliefs reduce it [5]. If your total income is over EUR 13,000, you pay USC on all of it [3]. The standard bands [2]:

For 2027, the top of the 2% band rises to EUR 30,300 [6]. Reduced rates apply to some people over 70 and some medical card holders [3].

PRSI: Ireland's FICA

PRSI funds Irish social welfare and the State Pension, much like Social Security and Medicare taxes back home. Most private-sector employees are Class A [4]:

• Earn EUR 352 a week or less (about USD 390): no employee PRSI, though you still get Class A coverage [4].
• Earn more: 4.35% of all your earnings from October 1, 2026, up from 4.2% through September 30, 2026 [4]. A small tapered credit applies between EUR 352.01 and EUR 424 a week [4].
• Your employer pays separately: 9.15% on weekly earnings up to EUR 552, or 11.4% above that, from October 1, 2026 [4]. Budget 2027 raises that EUR 552 threshold to EUR 600 [6].

Unlike Social Security, there's no annual wage cap: PRSI applies to every euro.

A ballpark example

Here's a rough illustration for a single employee earning EUR 60,000 (about USD 67,000) in 2026, paid evenly through the year, with only the personal and employee credits:

That's about a quarter of gross pay. Pension contributions, the Rent Tax Credit and other reliefs would change it, and Revenue's own calculators are the place to check your case.

Emergency tax and how to avoid it

Start a job without the paperwork and your employer must use the temporary basis, better known as emergency tax [5]. It takes a big bite until Revenue catches up. To avoid it:

1. Get your PPS number (Ireland's Social Security number) as soon as you arrive.
2. Set up Revenue's myAccount online.
3. Register your new job in the Jobs and Pensions service in myAccount [5].
4. Claim your credits, such as the Rent Tax Credit, in myAccount.
5. Check your first payslip. If it shows emergency tax, update myAccount; the overpayment is usually refunded through payroll once Revenue issues your credits.

Fitting it with your US return

You still file with the IRS

The US taxes citizens wherever they live. The US–Ireland treaty's "saving clause" lets the US tax its citizens as if the treaty didn't exist, with a few listed exceptions [7]. So the treaty won't make your Irish salary US-tax-free. What it does guarantee is relief from double tax: the US must allow a credit for Irish tax [7].

You have two main tools:

• Foreign tax credit (Form 1116): credits Irish income tax against US tax on the same income. Because Irish rates are high, it often leaves no US tax on salary, and unused credits can carry forward.
• Foreign earned income exclusion (Form 2555): excludes up to USD 132,900 of foreign earnings for 2026 [8]. It's simpler, but often a worse fit in a high-tax country, and it can make you lose the benefit of extra Irish credits.

Income tax qualifies for the credit. USC is generally treated as an income tax too. PRSI is a social insurance contribution, and contributions covered by a totalization agreement aren't creditable. A US expat tax preparer can check your situation and pick the right mix.

Social Security and the totalization agreement

The US and Ireland have a totalization agreement, so you shouldn't pay both PRSI and US Social Security on the same pay [9]:

• Employees of Irish employers pay PRSI, not FICA.
• Americans sent temporarily by a US employer can stay in US Social Security with a certificate of coverage. Employers keep it on file in case of an IRS audit [9].
• Self-employed people living in Ireland are covered by the Irish system [9], and attach the certificate of coverage to their US return each year [9].
• Credits combine. Irish credits can count toward a partial US benefit if you have at least six US credits [9].

And don't forget the paperwork: the FBAR and Form 8938 still apply to your Irish bank accounts.

Comparing payslips is a favorite topic in our community group for Americans in Ireland, so bring yours (with your PPS number blacked out).

Sources

1. Revenue: Tax rates, bands and reliefs (2026 and 2025)
2. Revenue: Standard rates and thresholds of USC
3. Revenue: Universal Social Charge
4. Citizens Information: Paying social insurance (PRSI) (edited October 9, 2026)
5. Citizens Information: How your income tax is calculated
6. Citizens Information: Budget 2027
7. IRS: US–Ireland income tax treaty (1997)
8. IRS: Instructions for Form 2555 (2026)
9. SSA: US–Ireland Social Security agreement

Keep reading

• Irish taxes for Americans: how they fit with your US return
• Getting a PPS number in Dublin
• Irish pensions and PRSAs: US tax issues
• Foreign earned income exclusion vs foreign tax credit