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Marginal brackets2026 bracketsCouples quotientDeductions versus creditsWorked exampleCommon questionsMarginal brackets
Portuguese income tax (IRS) is progressive: your taxable income is sliced into brackets and each slice is taxed at that bracket's rate. Nobody pays the top rate on their whole income. Crossing into a higher bracket raises the tax on the euros above the line only, so a raise never leaves you worse off after tax.
In practice the tables collapse the slice-by-slice arithmetic into a shortcut: multiply your whole taxable income by the rate of the bracket it lands in, then subtract a fixed amount (the parcela a abater) that gives you back the lower rates on the earlier slices. Both routes produce the same number.
2026 brackets
For income earned in 2026, mainland Portugal has nine brackets. The bracket boundaries were lifted by 3.51% against 2025 and the marginal rates of the second to fifth brackets were cut by 0.3 percentage points. The table below is the published 2026 table; Madeira and the Azores apply their own regional variants, so islanders should check the regional tables.
| Taxable income | Marginal rate | Parcela a abater |
|---|---|---|
| Up to 8,342 | 12.5% | 0 |
| 8,342 to 12,587 | 15.7% | 266.94 |
| 12,587 to 17,838 | 21.2% | 959.23 |
| 17,838 to 23,089 | 24.1% | 1,476.53 |
| 23,089 to 29,397 | 31.1% | 3,092.76 |
| 29,397 to 43,090 | 34.9% | 4,209.85 |
| 43,090 to 46,566 | 43.1% | 7,743.23 |
| 46,566 to 86,634 | 44.6% | 8,441.72 |
| Above 86,634 | 48% | 11,387.28 |
Couples quotient
Married and cohabiting couples can opt for joint taxation, and the mechanics matter. The household's combined taxable income is divided by two, the bracket table is applied to that half, and the resulting tax is multiplied by two. Splitting pushes the average rate down whenever incomes are unequal, because half of a single big income lands in a lower bracket than the whole of it. A couple where one partner earns most of the money usually gains from the quotient; two similar earners see little difference. The portal simulates both options before you submit, so the choice can be made on numbers rather than guesswork.
Deductions versus credits
Two different things reduce your bill, and they work at different stages. Deductions reduce taxable income before the brackets apply: the automatic employment deduction (a fixed amount every employee gets, around four thousand euros in recent years; confirm the current figure), social security contributions for freelancers under some setups, and similar items. A euro of deduction saves you your marginal rate.
Before the rate, after the calculation
A reading map for this guide’s calculation. Check the rules for each deduction or credit rather than treating all expenses alike.
- Taxable-income stageItems that change the income entering the rate calculation.
- Tax-liability stageItems credited against the tax calculated on that income.
Credits (deduções à coleta) come off the computed tax afterwards: percentages of your validated health, education, rent, and general family expenses from e-Fatura, each with its own cap. A euro of credit saves you a full euro, but the caps are tight. The e-Fatura guide lists the categories and current limits.
Worked example
Worked example
Marta, a single resident employee, earns 30,000.00 gross in 2026 with no other income, using an illustrative round figure for the employment deduction.
Her employer withheld monthly through the year; if withholding exceeded 4,443.24 the difference comes back as a refund, and if it fell short the balance is due by the end of August.
The effective rate in this example is around 15% of gross, while the marginal rate is 31.1%. That gap is the progressive system working as designed, and it is why "what bracket am I in" is the wrong question for estimating your bill.
Common mistakes
- Reading the top bracket as your rate. Only the slice above each threshold pays that bracket's rate, so a raise never leaves you worse off after tax.
- Forgetting the parcela a abater. Multiplying your whole income by the bracket rate without the subtraction overstates the bill by thousands.
- Confusing deductions with credits. A euro of deduction saves your marginal rate while a euro of credit saves a full euro, and they enter the calculation at different stages.
- Not simulating joint versus separate. The couples quotient often helps unequal earners, and the portal compares both options before you submit.
- Reusing last year's table. Boundaries are typically lifted with inflation in each state budget; check the current table before estimating.
Common questions
Does foreign income use the same brackets?
Foreign employment, pension, and rental income aggregates into the same brackets unless a regime exempts it. Foreign dividends and interest generally take the flat 28% instead. The Anexo J guide covers the routing.
Why is my monthly withholding different from these rates?
Withholding tables are a monthly estimate designed to land near your annual bill, and they follow their own schedule. The annual bracket table is what actually decides the tax; withholding just prepays it.
What is the minimum existence rule?
A floor that guarantees low earners keep a minimum amount after tax, set at 12,880 for 2026. If the bracket arithmetic would push you below it, the tax is reduced.
Do the brackets change every year?
Usually. Boundaries are typically lifted with inflation in each state budget and rates are adjusted more occasionally, so check the current table before reusing last year's numbers.
Sources
- CIRS article 68, 2026 bracket table as amended by the 2026 state budget
- Autoridade Tributária guidance on joint taxation and deduções à coleta
- CalculaPT, CRN Contabilidade, and Cofidis 2026 bracket guides (checked August 2026)
This guide is general information, not personalised tax advice. Rules and rates change, and your facts can move you off the defaults described here. Confirm your position with a qualified professional before acting on it.