What documents does a foreign buyer need to buy a car in Portugal?
22/10/2026 · Buying a car
Author: Artur Vasilyev · Updated:

At a glance: foreign buyers need a NIF (Portuguese tax number) and a valid passport to buy a car in Portugal. A residence permit is not required. You also need an address where you can receive the new vehicle registration document.
1. NIF — your Portuguese tax number
You cannot register a car in your name without a NIF, so arrange this first. You can apply at the tax office (Finanças) with your passport. Non-residents also need proof of their address abroad.
2. Passport
A valid passport is accepted. A residence card or Portuguese Citizen Card is not required to buy the car.
3. An address for the vehicle document
After the purchase, the change of ownership is recorded in the vehicle register through IRN. The new vehicle registration document, the Documento Único Automóvel (DUA), is sent by post, usually within around 15 days. You therefore need an address where you can receive it. Until it arrives, you can drive with proof that the registration application has been submitted.
4. What the seller provides
- The car’s current DUA.
- An ownership registration application signed by the seller and buyer.
- A valid periodic inspection (IPO) certificate, if the car is already subject to inspection.
The change of ownership must be registered within 60 days of purchase. A professional dealership will usually handle this and provide a declaration allowing you to drive legally.
5. Insurance
You cannot drive on public roads in Portugal without insurance. Arrange cover before collecting the car.
How to check the car itself
Paperwork is only half the picture. The car’s condition matters too. Before you travel, book a GRANT Check-Up: a mechanic checks at least 300 points, including computer diagnostics and a test drive, and sends you at least 50 photos and videos. The price is 149 EUR (VAT included).
Frequently asked questions
Can I buy a car without a NIF?
No. A NIF is required to register the car in your name.
Do I need a residence permit?
Not to buy a car: a valid passport and NIF are sufficient. Car finance requires a residence card or Portuguese Citizen Card.
How long does the new DUA take to arrive?
Usually around 15 days, by post to your address. Delays at the registration authority are possible.