UK Visa for US Citizens 2026: ETA vs Visa Complete Guide
US citizens need an Electronic Travel Authorisation (ETA) to visit the UK since January 2025 — full enforcement from 25 February 2026. The fee rose from £16 to £20 on 8 April 2026. For stays over 6 months or work, a full visa is required. This guide covers the 2026 rules.