Countries
Driving in Portugal with a US license
Portugal is one of the easier countries in Europe for an American driver, within a time limit that the tool below computes.
Do you need an International Driving Permit there?
Driving in Portugal on a US license
US license accepted for visitors
| US license counts | 6 months of a stay |
| IDP | Not required by the rule we read, but rental desks and insurers may still ask for one. |
| Conventions | Party to both the 1949 Geneva and the 1968 Vienna conventions (1949: 1955) (1968: 2010) |
| Rule | State Department You may drive with a valid US license for up to six months. The State Department refers drivers to AAA for international permits. |
Source: U.S. Department of State, Portugal country information (updated December 11, 2025). Not legal advice; the country's own authorities decide.
Driving in Portugal: the full rulesYou may drive in Portugal with a valid US license for up to six months, according to the State Department's Portugal page, updated on December 11, 2025, which refers travelers to AAA for international permits. No permit is listed as a requirement, which sets Portugal apart from its neighbor Spain, where one is required. Portugal has been a party to the 1949 Geneva convention since 1955 and to the 1968 Vienna convention since 2010, so a permit issued in the United States is recognized if a rental company or an insurer asks for one. The page warns that, despite a much improved motorway network, the road fatality rate remains high, driving can be aggressive and fast, fines are substantial and police can collect them on the spot with portable card machines. Mobile phone use while driving is illegal, and seat belts are required for every passenger.
Until when does your US license count?
Last day on the US license in Portugal
June 4, 2027
| Rule | 6 months of a stay |
| Days counted | 182 |
| Also needed | nothing else by the rule read |
Leaving and coming back may restart the count in some countries, not all: check the text cited on the country page.
Rules read by Radif Partners · Editorial policy · Method and sources
Why some travelers still carry a permit
A road trip from Lisbon often crosses into Spain, where the permit is required. Carrying one from the start avoids a second set of rules at the border. It also translates the license for a police officer or insurer who does not read English. The trip planner shows what each country on a route asks for.
Six months, then a Portuguese license
The six-month limit concerns the US license. A person who settles in Portugal needs to deal with the Portuguese license authority before it runs out, under rules not covered here. Tolls on many motorways are collected electronically; rental cars usually come with a transponder, which is worth confirming at the counter.
Portugal at a glance
| What a US license holder needs | US license accepted for visitors |
| How long the US license counts | 6 months of a stay |
| Side of the road | right, as in the United States |
| 1949 Geneva convention | party since December 28, 1955 |
| 1968 Vienna convention | party since September 30, 2010 |
| Rule read in | U.S. Department of State, Portugal country information (updated December 11, 2025) |
What the State Department page says
| Passage on driver's licenses, as published |
|---|
| You may drive with a valid U.S. driver's license for up to six months. For international driving permits, please contact AAA or the National Auto Club. |