Business
Guides to company taxes in Portugal: IRC, the derrama and what a business pays.
What is corporate income tax (IRC) and how is it calculated?
What IRC is: the 19 % general rate in 2026, the reduced SME rate (15 %), the municipal and state surcharges, and how the tax is calculated, with an example.
4 min readWhat is the derrama and how is it calculated?
What the derrama is: the municipal surcharge (up to 1.5 %, set by your council) and the state surcharge in brackets (3 %, 5 %, 9 %), and how they work.
4 min readWhat is an IRC payment on account?
What an IRC payment on account is: the three instalments a company pays in advance, how they are worked out (80 % or 95 %) and when they are waived.
4 min readWhat is autonomous taxation (IRC)?
What autonomous taxation of IRC is: the fixed-rate tax on company cars and certain expenses, due even in a loss-making year, and how it is calculated.
4 min read
The content is educational and does not constitute financial advice.