Freelancer Tax Deductions in Portugal: What You Can and Cannot Deduct (2026)

Tax deductions are one of the most confusing topics for expat freelancers in Portugal. The system works very differently from the US, UK, or most other countries — and the rules depend entirely on which tax regime you are on. This guide explains what you can deduct, how the automatic deduction works, and the e-Fatura system that catches many D8 visa holders off guard.

How tax deductions work for freelancers in Portugal

The simplified regime: your automatic 25% deduction

The 15% e-Fatura rule (and how to satisfy it)

What counts as a business expense on e-Fatura

Organized regime: full expense deductions

Personal deductions all freelancers can claim

Common expenses: deductible or not?

Special considerations for D8 visa holders

Mistakes to avoid with deductions

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