Portugal Corporate Tax Calculator 2026 (20.5%)
Estimate corporate income tax in Portugal on any profit: tax due, effective rate and profit after tax, with the 20.5% headline rate and the reduced rates in force in September 2026.
The calculation runs in your browser: nothing you type is uploaded or stored. Results are estimates for planning, not tax advice. Check your own case with your adviser or the tax authority.
Corporate tax rules in Portugal
General rate, mainland Portugal (19% for periods starting in 2026): a flat 19% on taxable profit. SME or Small Mid Cap with a commercial, industrial or agricultural main activity: 15% on the first EUR 50,000 (de minimis rules): 15% on the first €50,000.00 and 19% above €50,000.00. Qualifying start-up (Law 21/2023) that is an SME: 12.5% on the first EUR 50,000: 12.5% on the first €50,000.00 and 19% above €50,000.00.
Tax periods beginning in 2026 (mainland Portugal)
19% IRC + up to 1.5% municipal derrama = up to 20.5%; state derrama of 3%/5%/9% applies on profit above EUR 1.5m
Who qualifies for the lower rates
- Law 64/2025: general rate 19% for periods starting in 2026, 18% in 2027, 17% from 2028 (was 20% in 2025, 21% before).
- SME rate on the first EUR 50,000 is 15% from 2026 (Law 64/2025); SME status per the annex to Decree-Law 372/2007; subject to EU de minimis aid limits.
- Madeira and Azores: 13% standard, 10.5% SME rate on first EUR 50,000, regional surtaxes instead of the state surtax.
- Inland-territory SMEs: 12.5% on the first EUR 50,000 (PwC).
Local taxes and minimum taxes
Not included in the bands: municipal surtax (derrama municipal) up to 1.5% of taxable profit set by each municipality; state surtax (derrama estadual) on taxable profit: 3% on EUR 1.5m-7.5m, 5% on EUR 7.5m-35m, 9% above EUR 35m (slices). Both are computed before loss carry-forwards.
Autonomous taxation on certain expenses (e.g. 10% on entertainment) is due even with no profit - not modelled. Pillar Two (RIMG) for groups >= EUR 750m not modelled.
Filing and payment
Annual return (Modelo 22) by the last day of May of the following year (5th month after a non-calendar year end); three payments on account in July, September and by 15 December
How the calculation works
The calculator applies the rates in the order the law does: band by band where a country taxes profit in slices, or one rate to the whole profit where eligibility decides the rate. Surcharges are applied to the tax, local business taxes to the profit. The result is an estimate: it does not include loss relief, tax credits, deferred tax or group rules.
Frequently asked questions
What is the corporate tax rate in Portugal?
General rate, mainland Portugal (19% for periods starting in 2026): a flat 19% on taxable profit. SME or Small Mid Cap with a commercial, industrial or agricultural main activity: 15% on the first EUR 50,000 (de minimis rules): 15% on the first €50,000.00 and 19% above €50,000.00. Qualifying start-up (Law 21/2023) that is an SME: 12.5% on the first EUR 50,000: 12.5% on the first €50,000.00 and 19% above €50,000.00.
How much corporate tax is due on a profit of €100,000.00?
On a taxable profit of €100,000.00 this calculator estimates €20,500.00 of tax, an effective rate of 20.5%, before any credits, losses or local adjustments. Change the inputs above to model your own figures.
Who qualifies for the reduced rates?
Law 64/2025: general rate 19% for periods starting in 2026, 18% in 2027, 17% from 2028 (was 20% in 2025, 21% before). SME rate on the first EUR 50,000 is 15% from 2026 (Law 64/2025); SME status per the annex to Decree-Law 372/2007; subject to EU de minimis aid limits. Madeira and Azores: 13% standard, 10.5% SME rate on first EUR 50,000, regional surtaxes instead of the state surtax. Inland-territory SMEs: 12.5% on the first EUR 50,000 (PwC).
When is the corporate tax return due?
Annual return (Modelo 22) by the last day of May of the following year (5th month after a non-calendar year end); three payments on account in July, September and by 15 December
Does the estimate include local taxes and minimum taxes?
Not included in the bands: municipal surtax (derrama municipal) up to 1.5% of taxable profit set by each municipality; state surtax (derrama estadual) on taxable profit: 3% on EUR 1.5m-7.5m, 5% on EUR 7.5m-35m, 9% above EUR 35m (slices). Both are computed before loss carry-forwards. Autonomous taxation on certain expenses (e.g. 10% on entertainment) is due even with no profit - not modelled. Pillar Two (RIMG) for groups >= EUR 750m not modelled.
Is the result my exact tax bill?
No. It applies the statutory rates to the profit you enter. Your real bill depends on how taxable profit is computed (non-deductible costs, losses brought forward, allowances), on credits and on advance payments already made.
Are these rates up to date?
They were checked against Autoridade Tributária e Aduaneira - Portal das Finanças and the other sources listed on this page on 30 September 2026. If a rate changes, type the new one into the rate field and the result updates at once.
Sources
- Código do IRC, artigo 87.º Taxas (with transitional rule of Law 64/2025) — Autoridade Tributária e Aduaneira - Portal das Finanças
- Código do IRC, artigo 87.º-A Derrama estadual — Autoridade Tributária e Aduaneira - Portal das Finanças
- Portugal - Corporate - Taxes on corporate income (PwC Worldwide Tax Summaries, authoritative corroboration; last reviewed 24 July 2026) — PwC
- Portugal - Corporate - Significant developments (Law 64/2025) — PwC
- Portugal - Corporate - Tax administration (PwC Worldwide Tax Summaries) — PwC
Rates, bands and thresholds were checked against these sources on 30 September 2026. Tax rules change: if a rate has moved, edit it in the calculator above.
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