NIF for Inheritance in Portugal (2026): What Heirs Need to Do

When a relative dies in Portugal (or leaves assets in Portugal), the succession process almost always hits the same administrative wall: you can’t move forward without the right NIFs. In practice, you may need:

• the deceased person’s NIF (usually already exists),

• a Portuguese NIF for the head of the estate (“cabeça-de-casal”),

• a Portuguese NIF for each heir/beneficiary, and sometimes

• a separate NIF for the “inheritance estate” (Herança Indivisa) before certain tax filings can be submitted.

This guide explains what heirs typically need to do in 2026, the deadlines that matter, and the fastest way to get the missing NIF(s) so the inheritance can progress.