Conditions to qualify for tax exemption, e.g. deadlines
You must provide the following documentation:
Proof that you are transferring your residence to Portugal from another country where you have lived for at least 12 consecutive months (or 12 non-consecutive months in countries that limit the duration of stay)
Proof of nationality, of your activity in the country you are leaving, and of any contractual ties and their duration.
Proof that you own the vehicle (registration certificate)
The vehicle you are registering must:
have a non-temporary license plate of another EU country and be registered in the name of a person who is not resident in Portugal;
be owned by you and be brought to Portugal for your private use.
You must apply for exemption within six months of transferring your residence to Portugal.