Where can I find my NIF on the provided by Autoridade Tributária e Aduaneira document?

You can find your NIF in the upper left corner of the PDF document provided by Financas.

WARNING: People will commonly mistake their tax representative’s NIF for their own because it is labeled “Numero Fiscal” on the document.

Do not yet have a NIF? Make a few simple steps to obtain your first Portugal NIF online