Open your atividade
On the Portal das Finanças. Then come back and finish your business details.
Have ready
- Your NIF and your Portal das Finanças password — or your Cartão de Cidadão, or Chave Móvel Digital.
- Your activity code. Ask your accountant which one fits.
- Your estimated turnover until the end of the year.
- The IBAN of a bank account in your name.
YouSteps
- Go to portaldasfinancas.gov.pt and sign in.
- Open Cidadãos › Serviços › Atividade. Choose the start‑of‑activity declaration.
- Answer the questions. The form has help texts and a search for activity codes.
- Check the summary and submit. Keep the proof.
Portal das Finanças — Início de atividade →gov.pt — Abrir atividade →
It worked
On the Portal, Atividade › Consultar dados de Atividade shows your activity as open.
Good to know
You have an atividade, but we couldn’t confirm it?
We look up your NIF in VIES, the EU list of VAT numbers. Many small sole traders are not in it. On “Business details”, tick “I confirm my atividade is open on the Portal das Finanças” and type your legal name.
Who needs one?
Anyone who organises and sells events often, on their own account. Declare it before you start.
Activity code, IVA, Segurança Social?
They depend on your case. Ask your accountant.
If it doesn’t work
No Portal password?
On the Portal, tap Criar Conta and enter your NIF. The password comes by letter to your tax address.
The Portal asks for organised accounting?
Then a certified accountant files the declaration for you.
Rather do it in person?
A Serviço de Finanças or a Loja do Cidadão can take the declaration.