
Yes, you can typically drive a rental car from Spain into Portugal, but it is not automatically allowed. You must obtain written permission from your rental company beforehand. This policy, known as a cross-border authorization, varies significantly by rental agency and is often restricted to specific vehicle categories.
Failing to get this permission can void your rental agreement's insurance coverage, leaving you fully liable for any damages, theft, or accidents that occur in Portugal. The process usually involves presenting your driver's license, passport, and credit card at the rental counter for verification.
| Rental Company | Typical Cross-Border Policy for Portugal | Potential Fee | Required Documentation |
|---|---|---|---|
| Europcar | Often allowed (pre-authorization required) | Varies (e.g., €25-€50 per rental) | Rental agreement, driver's license, passport |
| Sixt | Generally permitted for most vehicles | Subject to a daily fee | Written authorization, IDP (if applicable) |
| Avis | Usually allowed, but restrictions may apply | Flat fee or daily charge | Proof of insurance, credit card in driver's name |
| Hertz | Frequently permitted with prior approval | Varies by location and duration | Valid driver's license for at least 1 year |
| Budget | Case-by-case basis; not all locations allow it | Inquire at pickup | Passport, secondary form of ID |
Beyond company approval, ensure you carry the vehicle's registration and insurance documents (Green Card) in the car. You must also comply with Portuguese driving laws, which include carrying a warning triangle and high-visibility vest for all occupants. Some companies prohibit taking their vehicles to certain events or on specific types of roads, like unpaved trails. Always inspect the rental agreement's terms and conditions section for "Geographical Restrictions" to avoid any costly surprises.

Call the rental office a day before you pick up the car. Don't just rely on the website's fine print. Tell them exactly which border crossing you plan to use and for how many days you'll be in Portugal. Get the name of the person who confirms it's okay and ask for an email stating the permission. This little bit of homework saves you from a massive headache if something happens across the border.


