Legal notice

Last updated: 3 November 2026.

This English version is a translation provided for convenience. In case of doubt, the Portuguese version prevails: Aviso legal.

General information, not advice

Simples IRS provides calculators, calendars and guides on IRS, Social Security and VAT for self-employed workers in Portugal. All content is informational and general in nature. It does not constitute tax, accounting or legal advice and does not replace a certified accountant (contabilista certificado), a lawyer, the Tax and Customs Authority (Autoridade Tributária e Aduaneira, AT) or Social Security (Segurança Social).

Estimates

The results are estimates based on simplified assumptions (a single taxpayer, resident in mainland Portugal, constant income, simplified regime, only category B income, among others stated in each tool). The actual amount of tax and contributions is the one resulting from the official assessment (the calculation made by the Finanças and by Social Security).

How current the information is

The tax figures were checked against the official sources listed on each page on the date shown ("Checked on"). Legislation changes often; always confirm with the official sources before making a decision.

Liability

To the extent permitted by law, the person responsible for the site is not liable for decisions taken solely on the basis of these tools, nor for errors or omissions, without prejudice to the rights that the law grants to consumers.

Person responsible for the site

Francisco T. — contact: simplesirs.pt@gmail.com.