Three separate deductions come off a PAYE salary before it reaches your account: income tax at 20% or 40%, USC on a sliding scale from 0.5% to 8%, and PRSI at 4.2%. Each one runs on its own rules, its own thresholds, and its own exemptions, which is why two people on the same salary can end up with noticeably different take-home pay.
A calculator gives you the final number. What it usually doesn’t explain is why the number lands where it does, which matters the moment your circumstances change, a raise, a second income, a change in marital status, and the same salary produces a different result than it did the year before.
The Three Deductions, One at a Time
Income tax uses two rates. A single PAYE employee pays 20% on the first €44,000 of income in 2026, then 40% on everything above that. Tax credits get subtracted afterward, not before, so the 20% and 40% figures are calculated on gross income first.
USC applies in four bands: 0.5% up to €12,012, 2% from there to €28,700, 3% up to €70,044, and 8% above that. PRSI, Class A for most employees, runs at 4.2% of gross earnings from January 2026, rising to 4.35% from October, with no PRSI at all on weekly earnings of €352 or less.
Working Through an Actual Salary
A single PAYE employee earning €50,000 in 2026 has €44,000 taxed at 20% and €6,000 taxed at 40%, giving €11,200 in gross income tax before credits. The standard Personal Tax Credit and Employee Tax Credit together total €4,000, bringing the actual income tax bill down to €7,200.
| Deduction | Amount |
| Gross salary | €50,000 |
| Income tax (after €4,000 credits) | €7,200 |
| USC | ≈ €1,035 |
| PRSI (4.2%) | €2,100 |
| Approximate net take-home | €39,665 |
That works out to an effective tax rate of roughly 20.7% on gross pay, well below the 40% headline rate, because the marginal rate only applies to the slice of income sitting above the standard rate band, not the whole salary.
The USC Threshold That Catches People Off Guard
Total income of €13,000 or less is completely exempt from USC. Cross that line by even a single euro and USC applies to the entire amount, not just the portion above €13,000. Someone earning €13,050 pays USC on all €13,050, not on the €50 that pushed them over. This cliff-edge catches part-time and seasonal workers most often, since a small increase in hours can trigger a bigger drop in take-home pay than the extra hours were worth. Getting the tax returns position checked matters more at exactly this kind of threshold than it does further up the income scale.
What Actually Moves the Standard Rate Band
Marital status changes the calculation more than almost anything else. A single person’s standard rate band sits at €44,000 for 2026. A married couple with one earner gets €53,000. Where both spouses work, the combined band can stretch to €88,000, made up of €53,000 plus up to €35,000 transferred from the second earner’s own allowance. None of this happens automatically. It requires actively electing joint assessment through tax services or directly with Revenue, and couples who never make the election are frequently paying more than they need to as two separately assessed individuals.
Why a Second Income Doesn’t Work the Way Most People Expect
A second job in Ireland isn’t automatically taxed at a higher flat rate. What actually happens is that your tax credits and standard rate band, by default, stay allocated entirely to your main employment. Every euro from the second job then falls outside any remaining 20% band and gets taxed at 40% from the very first euro, which looks like a punitive second-job rate but is really just an allocation problem. Splitting the credits and band correctly between both employments through Revenue’s myAccount service fixes this without waiting for a refund at year-end. The same imbalance shows up for anyone running a consultants practice alongside PAYE employment, where the self-employed portion needs its own separate tracking rather than assuming payroll handles it.
Auto-Enrolment Adds a New Line From 2026
Ireland’s auto-enrolment pension scheme started on 1 January 2026 for qualifying employees not already in a workplace pension. In the first three years, the employee contributes 1.5% of gross pay, matched by a 1.5% employer contribution, with the State adding a further 0.5% on top. That contribution rate rises every three years until it reaches 6% each for employer and employee by year ten. For anyone managing payroll for staff who weren’t in a pension scheme before, this is a new deduction appearing on payslips that didn’t exist last year.
Frequently Asked Questions
Does a bonus get taxed at a higher rate than regular salary?
No. A bonus is simply added to your income for that pay period and taxed under the same bands as any other earnings. It can look higher because a lump sum often pushes that period’s income into the 40% band, even if your annual salary doesn’t reach it.
Why is my PRSI different from a colleague on the same salary?
PRSI class depends on employment type, not just salary. Most private-sector employees pay Class A, but public servants, some company directors, and certain other categories fall under different PRSI classes with different rates and entitlements.
Do pension contributions reduce USC and PRSI as well as income tax?
No. Pension contributions reduce the income subject to income tax at your marginal rate, but USC and PRSI are calculated on gross income before any pension deduction.
Is the standard rate cut-off the same for everyone?
No. It depends on marital status and, for couples, how income is split between spouses. A single person, a one-income married couple, and a two-income married couple each have a different cut-off point.
What happens if too much tax was deducted during the year?
It gets refunded once a Revenue review confirms the overpayment, either automatically in some cases or after requesting a Statement of Liability through myAccount.
Getting the Number Right for Your Actual Situation
A generic calculator gets close for a straightforward single PAYE employee with one job and no other income. It gets less reliable the moment a second income, a marital status change, or self-employment enters the picture, since those are exactly the situations that shift bands and credits away from their default settings. We check income tax return positions for PAYE and self-employed clients across Ireland where the default allocation of credits and bands is no longer the right one.
A broader look at how salary, dividends, and pension contributions interact for company directors and business owners is covered on geroconnor.info, and a fuller picture of how online chartered accountants work with both PAYE and self-employed clients is covered there too.
