Travellers at a Thai airport immigration counter, AI-generated illustration

Thailand Immigration Checks in 2026: Overstay, TDAC and Visa Compliance

Updated 17 October 2026. This guide replaces vague “crackdown” language with practical immigration-compliance advice. When travellers hear that Thailand has launched “another crackdown”, they often imagine sudden rule changes. In reality, the most useful approach is to understand the rules that already exist: keep your stay valid, use official systems and avoid relying on rumours…