Income Tax Calculator Ireland 2027

Budget 2027 Income Tax update

The calculator now defaults to the 2027 single-person PAYE baseline: a €46,500 standard-rate band and €4,250 of combined Single Person and maximum Employee Tax Credits.

The 2026 €44,000 band and €4,000 combined baseline remain available through the tax-year selector. Advanced mode can still replace the band and credits with the figures on your own Revenue record.

What this calculator is for

This tool isolates Irish Income Tax from USC and PRSI. It applies the selected 2026 or 2027 standard-rate band and credits so you can see gross tax, tax credits and the resulting Income Tax liability.

How to read the result

Income Tax is progressive. Income within the standard-rate band is taxed at 20%, while income above the band is generally taxed at 40%. Tax credits then reduce the tax bill euro-for-euro; they are not the same as deductions from taxable income.

Worked example

For a single person with €50,000 of taxable income and a €44,000 standard-rate band, €44,000 is taxed at 20% and €6,000 at 40% before credits. Tax credits are then subtracted from that gross Income Tax.

Irish context

Revenue’s 2026 standard-rate band for a single person without qualifying children is €44,000. Different bands apply to married couples/civil partners and some single parents. The Employee Tax Credit can be up to €2,000, and other credits may apply.

What can change the answer

Personal circumstances, pension relief, tax credits, jointly assessed income, rental or self-employed income and other reliefs can all alter the liability. This calculator is intentionally narrower than a full Form 11 or PAYE assessment.

Common mistakes to avoid

Do not confuse tax credits with the 20%/40% bands. Do not add USC and PRSI into the Income Tax result. And do not assume the standard single-person band applies to every taxpayer.

Related Compound tools

Use the Take-Home Pay Calculator for the combined net-pay picture, USC Calculator, PRSI Calculator and Pension Tax Relief Calculator.

Frequently asked questions

Are tax credits deductions from income?

No. They reduce the Income Tax calculated.

Is USC part of Income Tax?

No.

Does the 40% rate apply to my whole salary once I cross the band?

No. It applies to the portion above the standard-rate band.

Does this calculate every credit?

No.

Marginal tax rate versus effective tax rate

Crossing into the 40% Income Tax band does not mean your entire salary is suddenly taxed at 40%. Only the slice above the standard-rate band is taxed at the higher rate before credits.

That is the difference between a marginal rate and an effective rate. The marginal rate describes the tax on the next euro of taxable income; the effective rate is total Income Tax divided by total income.

For example, a single taxpayer with €50,000 of taxable income in 2026 has €44,000 within the 20% band and €6,000 in the 40% band before credits. The effective Income Tax rate after credits can therefore be far below 40%.

This distinction is important when considering overtime, bonuses or salary increases. Earning more gross income does not make you worse off merely because part of the extra income enters a higher band, although the extra euro can face a higher combined marginal deduction once USC and PRSI are included.

Advanced mode: pension relief, bands and credits

Basic mode defaults to the 2027 €46,500 single-person standard-rate band and €4,250 of standard personal plus maximum employee tax credits. Select 2026 to reproduce the prior-year baseline. Advanced mode is designed for users who know the figures on their own Revenue record.

A pension amount entered in Advanced mode is deducted before the 20% and 40% band calculation, but the tool assumes that amount qualifies for Income Tax relief. Revenue’s age-related pension contribution limits and earnings ceiling are separate tests, so use the Pension Tax Relief Calculator where that limit matters.

Changing the tax band and credits can materially alter the answer. This is particularly relevant for married/civil-partner assessment, transferred bands, additional credits and other situations where the single-person defaults do not represent the taxpayer.

A better way to use the 2026 result

The most useful way to read an Income Tax estimate is as a waterfall, not as a single percentage. In 2026, a single person without a qualifying child has a standard-rate band of €44,000: income inside that band is generally charged at 20% and income above it at 40%, before tax credits are deducted. A typical PAYE employee may also have a €2,000 Single Person Tax Credit and a €2,000 Employee Tax Credit, although the credits and band on your own Revenue record are what matter for payroll.

That structure explains why crossing the standard-rate band does not cause all of your earnings to be taxed at 40%. Only the slice above the band moves into the higher Income Tax rate. For salary decisions, the better question is therefore: “How much of my next €1,000 falls into the 40% band, and what other deductions apply to that extra income?”

The calculator deliberately separates Income Tax from USC and PRSI. That makes it easier to diagnose a payslip. If the Income Tax estimate looks reasonable but net pay still feels lower than expected, open the USC calculator and PRSI calculator rather than trying to force every deduction into the Income Tax number.

Why your Revenue record can beat a generic default

Irish PAYE normally operates on a cumulative basis. Your employer receives Revenue Payroll Notification information containing the tax credits and rate bands Revenue says should apply. That means a person who changed jobs, has a second employment, transferred a band between spouses or civil partners, or has non-standard credits can legitimately have a payroll result that differs from a simple “single PAYE worker” example.

Use Advanced mode when you know your actual annual standard-rate band and tax credits. The default figures are useful for orientation; the personalised figures are better for reconciling real payroll.

Scenario test: a pay rise or bonus

When testing a pay rise, run the existing salary first and save the Income Tax result. Then increase only gross income and compare the difference. This produces an estimate of the incremental Income Tax on the raise.

Do the same exercise in the Take-Home Pay Calculator when you want the combined effect of Income Tax, USC and PRSI. A bonus can have a high deduction rate even though your average tax rate across the full year is much lower. That is a normal feature of a progressive system, not evidence that the entire salary has moved to the highest rate.

Payroll reconciliation checklist

If the estimate and payslip differ materially, check four items before assuming either is wrong:

1. Tax basis: cumulative versus Week 1/Month 1 treatment can change deductions in a particular pay period.
2. Revenue credits and bands: use the figures on your own Tax Credit Certificate or Revenue record.
3. Taxable pay: benefits-in-kind and other payroll items can make taxable pay differ from cash salary.
4. Timing: payroll works by pay period, while this calculator is designed primarily as an annual planning model.

For current statutory figures, Revenue remains the primary source. See Revenue’s 2026 tax rates, bands and reliefs and its explanation of how Income Tax is calculated.

Method and limitations

The calculator applies 20% to income within the entered standard-rate band and 40% above it, then subtracts the credits entered, floored at zero. It does not model every relief or personal circumstance.

Useful sources

• Revenue — Tax rates, bands and reliefs
• Revenue — How tax credits work