Glossary

Autoridade Tributária e Aduaneira

Published 30 October 2026, 20:39
Autoridade Tributária e Aduaneira, AT (tax and customs authority)

The full name of the Portuguese tax authority, which everybody simply calls Finanças. It assesses and collects taxes, runs the Portal das Finanças, issues fines and pursues debts.

Where you come across it. Bank details for a payment from abroad, letters and notices, documents for a tax refund, any papers about IRS and IVA.
When paying from another bank, enter Autoridade Tributária e Aduaneira as the payee and give your NIF and the payment document number from your online account as the reference; otherwise the payment will not be identified.