How to File Your IRS Tax Return in Portugal as a Freelancer (2026)

Every freelancer in Portugal must file an annual IRS (income tax) return. For 2026, the filing window is April 1 to June 30. If you are on a D8 visa or recently became a tax resident, this guide walks you through the entire process in English.

When to file your IRS return

Category B income explained

The simplified regime (75% taxable)

Portugal IRS tax brackets 2026

Deductible expenses for freelancers

Step-by-step filing on Portal das Financas

Common mistakes and how to avoid them

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