What are the registration requirements for registering a .PT domain? – Domains Help Center

.PT and .COM.PT:

Anyone can register them, from any country, in their own name. You don't need a local presence or a Portuguese tax number.
After you place your order, you will be asked for the holder's tax identification number (the one from your own country is fine): for companies registered in a European Union country, the VAT number; for companies registered outside the EU, the Tax Identification Number (TIN). The domain stays pending until we receive it.
The Portuguese registry checks the holder's details and may ask you to confirm them or to send a copy of your tax certificate or ID card. Please use real, up-to-date details and answer its emails quickly.

.CO.PT and .LDA.PT: