Portuguese Tax Authority

What is the Portuguese Tax and Customs Authority (AT)?

The Portuguese Tax and Customs Authority - Autoridade Tributária e Aduaneira (AT) — is the tax and customs authority of Portugal responsible for collecting taxes and enforcing customs regulations in the country. It ensures that individuals and businesses comply with tax laws and customs requirements.

What is 'Portal das Finanças' — Tax Portal?

The Portuguese Tax and Customs Authority (Finanças) is responsible for services related to taxes and customs, such as applying for a Tax Identification Number (NIF), submitting an IRS tax return or opening a business, among other things. These services can be accessed online, over the counter or by telephone.

The Tax Portal “Portal das Finanças” is the Tax and Customs Authority's (AT) online platform that allows citizens to deal with various tax matters.