Don't worry, quite the reverse. I personally know of 3 expats on 5 year+ overstay, one of those was a total surprise - until he was arrested in connection with a UK warrant. In rural Thailand, or even the darkside of places like Pattaya, you can go unnoticed for years. The rules/penalties are quite clear:- Thailand’s 2026 overstay rules impose a fine of 500 THB per day (maximum 20,000 THB) and re‑entry bans ranging from 1 to 10 years depending on overstay length and whether you surrender voluntarily.Overview of 2026 Overstay PenaltiesThailand updated and clarified its overstay enforcement in 2026. Key elements include fines, re‑entry bans, and differences between voluntary surrender and being caught. 1. Overstay Fines500 THB per day of overstay. Maximum fine: 20,000 THB, regardless of how long you overstayed. https://www.bing.com/th?id=ODF.wjl647jNuY1djzmuU9WLwQthailandknowledge.com+1 Fine is paid at the airport or immigration office when you surrender. 2. Re‑Entry Bans (Voluntary Surrender)If you go to immigration or leave Thailand on your own: Under 90 days: No ban (but permanent record). https://www.bing.com/th?id=ODLS.A2450BEC-5595-40BA-9F13-D9EC6AB74B9Fstampstay.com 90 days – 1 year: 1‑year ban. 1 – 3 years: 3‑year ban. 3 – 5 years: 5‑year ban. Over 5 years: 10‑year ban. https://www.bing.com/th?id=ODLS.A2450BEC-5595-40BA-9F13-D9EC6AB74B9Fthai-visa-services.com 3. Re‑Entry Bans (If Caught by Authorities)Penalties are much harsher if police or immigration catch you: Under 1 year overstay: 5‑year ban. Over 1 year: 10‑year ban. https://www.bing.com/th?id=ODLS.A2450BEC-5595-40BA-9F13-D9EC6AB74B9Fthai-visa-services.com Possible detention and forced deportation.