How to Read Your Irish Payslip — And Spot the Errors That Cost You
Most people look at two numbers on a payslip: gross and net. Everything in between is treated as weather.
That's understandable, and it's also where money quietly goes missing. Payroll errors in Ireland are rarely dramatic. They don't produce a zero payment or an obviously wrong figure. They produce a payslip that looks completely normal and is quietly wrong by a few hundred euro a year — sometimes for years.
In the example below, a worker on €40,000 is overpaying €2,000 a year because one line on their tax credit certificate is missing. Their payslip looks fine. Nothing about it would make you suspicious.
Here's how to read yours properly.
The three deductions, and why they behave differently
Your gross pay is reduced by three separate charges, calculated on three different bases. Confusing them is why payslips feel unreadable.
Income Tax (PAYE). Charged at 20% on income up to your standard rate cut-off point — €44,000 for a single person in 2026 — and 40% above it. Then your tax credits come off the resulting bill, euro for euro. A standard PAYE employee has €2,000 personal credit plus €2,000 employee credit: €4,000 a year, or €333.33 a month.
USC (Universal Social Charge). A separate charge on your gross income, with no tax credits applied to it. It's progressive, running in bands from 0.5% up to 8% on income above €70,044. Two things about it catch people out: you're exempt entirely if your total income is €13,000 or less, but that's a cliff edge — earn €13,001 and USC applies to your income from the first euro, not just the excess. A reduced maximum rate of 2% applies for people aged 70 or over, and for medical card holders, where income doesn't exceed €60,000. The intermediate band rates and thresholds move with almost every Budget, so check Revenue's current table rather than relying on a figure you remember.
PRSI. Charged on gross pay, and not reduced by tax credits or by pension contributions. Class A employees pay 4.2% from January to September 2026, rising to 4.35% from 1 October 2026. You're exempt if you earn €352 or less in a week, with a tapering credit of up to €12 a week between €352 and €424.
The practical consequence: a pension contribution reduces your income tax but not your USC or PRSI. People who expect a €100 pension contribution to save them 52% are disappointed for exactly this reason.
Read these five lines first
Whatever format your employer uses, find these:
- Your PPSN. Wrong or missing means nothing downstream is reliable.
- Your employer's registered number. You need this to register a first job yourself, and to split credits between two employers.
- Tax credits applied, usually shown per period. For a standard single employee on one job, expect around €333.33 a month or €76.92 a week.
- Standard rate cut-off point applied, again per period. For a single person on €44,000, expect around €3,666.67 a month.
- The basis of assessment — usually printed as "Cumulative", "Week 1", "Month 1", "Non-cumulative" or "Emergency".
If lines 3 and 4 are blank, zero, or much smaller than the figures above, that's your problem, and it's costing you every payday.
What "Week 1" actually means
This is the one nobody explains, and it isn't the same as emergency tax.
On a cumulative basis, each payslip recalculates your tax from the start of the year. Credits you didn't use in a month when you earned less get picked up automatically later. If you're owed a refund mid-year, it arrives through payroll.
On a Week 1 or Month 1 basis, each period stands alone. Your employer applies one period's credits and one period's rate band, and never looks back. Nothing recalculates, nothing catches up, and no refund can come through your payslip — even if you're clearly owed one.
Week 1 basis is applied in various circumstances, often where Revenue doesn't yet have a complete picture. It's not an error in itself. But if it stays on all year, any overpayment stays put until you claim it in an Income Tax Return.
Emergency basis is worse again and separate: no tax credits at all, and after four weeks, 40% on everything. That's covered in emergency tax in Ireland.
So: if your payslip says anything other than "Cumulative", find out why.
The missing credit
Here's how quietly this goes wrong.
Say you earn €40,000 and you're a single PAYE employee with one job. Your tax credit certificate should show €4,000 — personal credit plus employee credit. But only the personal credit is on it, because of how your record was set up.
What you should be paying:
| Calculation | Amount | |
|---|---|---|
| Income tax at 20% | €40,000 × 20% | €8,000.00 |
| Less personal credit | −€2,000.00 | |
| Less employee credit | −€2,000.00 | |
| Correct annual PAYE | €4,000.00 |
What you're actually paying:
| Calculation | Amount | |
|---|---|---|
| Income tax at 20% | €40,000 × 20% | €8,000.00 |
| Less personal credit only | −€2,000.00 | |
| PAYE deducted | €6,000.00 |
Overpaid: €2,000 a year. That's €166.67 a month, on a payslip where every other line is correct and nothing looks unusual. Over four open tax years it's €8,000.
You'd only catch this by comparing the credits line on your payslip against what you're actually entitled to — which is the whole reason to read the thing.
Five errors we see most
1. Credits sitting entirely with one of two jobs. If you have a second job — weekend shifts, agency work, a part-time role — and all your credits and rate band are allocated to job one, job two is taxed at 40% on everything. You fix it by dividing credits and rate band between the employments in myAccount.
2. Week 1 basis left running all year. As above. Nothing recalculates, and the overpayment has to be claimed.
3. Benefit-in-kind quietly added. A company car, health insurance paid by your employer, or other benefits are taxable and increase your taxable pay. That's correct — but the valuation should be right, and it's worth checking that what's being taxed matches what you actually have.
4. A pension deduction that isn't getting relief. Contributions deducted by your employer should reduce your taxable pay before income tax is calculated. If your taxable pay equals your gross pay despite a pension line, something's wrong. Note again that it correctly does not reduce USC or PRSI. See AVC and pension tax relief.
5. Reliefs never on the certificate at all. Rent, medical expenses, flat rate expenses, remote working relief — none of these appear automatically. Your payslip can be perfectly correct and you can still be overpaying, because Revenue doesn't know about them. That's a different problem with the same symptom: see the top Irish tax deductions you could be missing.
What to do if something looks wrong
First, check your tax credit certificate, not your payslip. Sign in to myAccount and look at what Revenue has actually instructed your employer to apply. Your employer applies the instruction they're given — if the instruction is wrong, payroll isn't at fault and can't fix it.
Then check your employments are listed. Under "Jobs and Pensions" in myAccount, confirm every employer you have appears. A missing employment is the most common single cause of a wrong payslip.
Fix the current year forward by correcting your credits and rate band allocation in myAccount. That stops the loss.
Then claim the past separately. Correcting your certificate doesn't refund what's already gone. That needs an Income Tax Return for each affected year — walked through in claiming your PAYE tax back for the first time.
If you'd rather have someone read the payslips and tell you what's actually wrong, that's exactly what our Payslip Review does.
Four years, and one deadline
Whatever went wrong, you can go back four years. As of 2026 that's 2022, 2023, 2024 and 2025 — and 2022 closes permanently on 31 December 2026.
Keep your payslips, but know that you don't strictly need them: your Employment Detail Summary in myAccount is built from what each employer reported to Revenue directly, so the record survives even if the employer doesn't.
Questions we get asked
My payslip says "Week 1". Is that an error?
Not necessarily — it's applied in a range of circumstances. But it means nothing recalculates across the year, so any overpayment stays with Revenue until you claim it. If it's still there late in the year, find out why.
My employer says the deductions are correct. Are they wrong?
Probably not. Employers apply the instruction Revenue sends them. If your credits are wrong, the instruction is wrong — which means the fix is in myAccount, not in payroll. Arguing with your payroll department is usually the wrong conversation.
Why doesn't my pension contribution reduce my USC and PRSI?
Because they're calculated on a different base. Pension relief works against income tax only. It's not an error on your payslip.
I got a pay rise and my take-home went up by much less than I expected.
That's usually the standard rate cut-off point. Income above €44,000 for a single person is taxed at 40% rather than 20%, and USC and PRSI apply on top, so the marginal rate on the increase is far higher than your average rate. Increasing pension contributions is the usual lever if you want to pull income back below the threshold.
How do I know what my credits should be?
A single PAYE employee with one job usually has €4,000 — €2,000 personal and €2,000 employee. More may apply depending on your circumstances: marital status, children, a spouse with no income, or reliefs you've claimed. Your certificate in myAccount shows what's actually applied.
If you do one thing after reading this: open your most recent payslip and find the tax credits figure. If it isn't roughly €333 a month and you're a single employee with one job, something needs looking at.