What is the derrama and how is it calculated?
The derrama is a surcharge added to corporate income tax (IRC). There are two: the municipal one, set by each council up to 1.5 % of profit, and the state one, which only the highest profits pay.
TL;DR
The derrama is a surcharge added to corporate income tax (IRC), charged on the company's same taxable profit. There are two. The derrama municipal is levied by the home municipality, up to 1.5 % of profit, and the actual rate is set by each council (many exempt or reduce it for low turnover). The derrama estadual is a national surcharge in brackets (3 % from €1.5 to €7.5 million, 5 % from €7.5 to €35 million and 9 % above €35 million) that only the highest profits pay. The total derrama is the sum of the two.
What is the derrama?
The derrama is not a separate tax: it is a surcharge added to corporate income tax (IRC), charged on the company's same taxable profit. In other words, after working out the IRC on the profit, the company also pays an additional percentage of that profit as derrama.
There are two distinct derramas: the derrama municipal, levied by the municipality where the company is based, and the derrama estadual, a national surcharge only the highest profits pay. You can estimate both with our derrama calculator.
The municipal surcharge
The derrama municipal is a tax of the municipality where the company is based, up to a ceiling of 1.5 % of taxable profit2. The calculation is simple:
Municipal surcharge = taxable profit × the council's rate (up to 1.5 %)
The point most people get wrong is assuming the rate is always 1.5 %. It is not: 1.5 % is the ceiling, but each town hall sets its own rate, which can be lower and can change every year. On top of that, many councils apply a reduced rate or an exemption to companies with low turnover (usually up to €150,000 a year). That is why, in the derrama calculator, the council's rate is a field you fill in. Confirm the current rate with the town hall or the tax portal.
The state surcharge
The derrama estadual is a national surcharge only the highest profits pay. It applies marginally in brackets on taxable profit, like income-tax brackets1:
| Taxable profit | Rate on the part in the bracket |
|---|---|
| Up to €1.5 million | 0 % (no state surcharge) |
| €1.5 to €7.5 million | 3 % |
| €7.5 to €35 million | 5 % |
| Above €35 million | 9 % |
Because the first bracket starts at €1.5 million, the vast majority of companies pay no state surcharge. And because it is marginal, only the part of the profit inside each bracket is taxed at that bracket's rate, not the whole profit.
How the total derrama is calculated
The total derrama is the sum of the two:
Total derrama = municipal surcharge + state surcharge
- Municipal surcharge: taxable profit × the council's rate (up to 1.5 %).
- State surcharge: zero for most; it only counts above €1.5 million of profit.
For the company's full tax, add the IRC itself: see how in our IRC calculator, which sums the IRC and the two surcharges.
Worked example
A company with €40,000 of taxable profit, in a municipality with a 1.5 % surcharge:
- municipal surcharge = €40,000 × 1.5 % = €600;
- state surcharge = €0 (profit is far below €1.5 million);
- total derrama = €600.
A large company with €5 million of profit, in the same municipality:
- municipal surcharge = €5,000,000 × 1.5 % = €75,000;
- state surcharge = (€5 − €1.5) million × 3 % = €105,000;
- total derrama = €180,000.
Try your case in the derrama calculator.
Derrama, IRC and self-employment
The derrama only exists on top of IRC, and IRC only applies to companies and other legal entities. A self-employed worker (recibos verdes) is an individual: they pay IRS and have no derrama. If you are weighing whether to work as self-employed or to incorporate, compare the two sides with the self-employed (recibos verdes) calculator (IRS and Social Security) and the IRC calculator (the company's tax, with the derramas).
What this calculation does not include
The calculator shows only the surcharges, from the taxable profit you enter. It does not compute the IRC itself (that is the IRC calculator), does not determine the taxable profit from your accounts, does not apply each council's actual rate (it is a field you fill in) and does not cover the rules of the autonomous regions (Madeira and the Azores). Use the estimate to get a sense of the order of magnitude and confirm the figures with your accountant.
Common mistakes
Confusing the derrama with IRC
The derrama is a surcharge added to IRC; it is not the base tax. A company's total tax is the IRC itself plus the surcharges. For the full tax, use the IRC calculator.
Assuming 1.5 % municipal surcharge everywhere
1.5 % is the legal ceiling, not every council's rate. Each town hall sets its own rate, which can be lower, and many exempt companies with low turnover. Confirm your council's rate.
Calculating the derrama on turnover
The derrama is charged on taxable profit, not on sales. A company with high sales but no profit pays no derrama.
Frequently asked questions
What is the derrama?
How is the municipal surcharge calculated?
Who pays the state surcharge?
What is my council's derrama rate?
Is the derrama the same as IRC?
What is the derrama charged on?
Related reading & calculators
Sources
- 1.Código do IRC (CIRC): art. 87.º-A (derrama estadual) — Diário da República · retrieved 12 Jun 2026
- 2.Lei das Finanças Locais (Lei n.º 73/2013): art. 18.º (derrama municipal) — Diário da República · retrieved 12 Jun 2026
Author / Reviewed by
Author
Thorben Rasmus Idel
Co-founder & writer
Co-founder of Calculadora Capital and the writer behind the methodology on every calculator and article. An entrepreneur and active investor, Thorben founded Idel Versandhandel GmbH, an international trading company operating across 16 countries, and invests across stocks, ETFs and cryptocurrency. He writes the methodology and verifies the math behind each page, drawing on hands-on business and investing experience to keep the tools and explanations grounded in how money, markets and taxes actually work for everyday people in Portugal.
Reviewed by
Nahar Geva
Co-founder & reviewer
Co-founder of Calculadora Capital and the independent reviewer behind every calculator and article. An entrepreneur and active investor, Nahar brings a data- and product-driven mindset together with hands-on experience in the markets — investing across stocks and ETFs as well as cryptocurrency and other digital assets, alongside broader personal finance and real estate. On each page Nahar reviews the methodology and double-checks the math and figures, pressure-testing how the tools and explanations hold up against the way money, markets and taxes actually work for everyday investors.
Published: Updated: Reviewed: