Expats need a UK driving licence once their foreign licence is no longer valid under UK rules, and the timing depends on where the licence was issued. In the United Kingdom, most expats can use a valid foreign driving licence for up to 12 months after becoming resident. Expats in the UK from certain countries may be able to exchange their foreign licence for a UK licence without taking a driving test, provided they apply within the required timeframe. However, if a licence is not exchangeable, expats in the UK must apply for a provisional UK licence and pass both the theory and practical driving tests to continue driving legally after the 12-month period. Expats should plan ahead, as test waiting times can be long. Driving without a valid licence can invalidate insurance and lead to penalties. Understanding when a UK licence is required helps expats stay compliant and insured.