How To File Taxes in Thailand in 2026

If you're an expat living in Thailand, the tax rules just got a lot more complicated — and most people don't know it yet. In this episode, Chiara from Siam Legal breaks down everything you need to know: why foreign income you bring into Thailand is now taxable, how the 180-day rule determines your tax residency regardless of your visa, and what the Long-Term Resident (LTR) visa can (and can't) protect you from. You'll also learn how Thailand's participation in the global Common Reporting Standard means your overseas accounts may already be visible to Thai authorities — and what to do about it before tax season.   Related Topic: https://www.siam-legal.com/Business-in-Thailand/thailand-accounting.php   ------------------------------------------------------------------------------------------------ SIAM LEGAL INTERNATIONAL (Bangkok Office) 18th Floor, Unit 1806 Two Pacific Place, 142 Sukhumvit Rd, Khlong Toei, Bangkok 10110, Thailand Phone: TH: +66 2254 8900 Email: [email protected] Website: https://www.siam-legal.com/   ------------------------------------------------------------------------------------------------ Follow us across platforms: 📌Facebook: https://www.facebook.com/SiamLegal/ 📌Instagram: https://www.instagram.com/siamlegal/ 📌X: https://x.com/SiamLegal 📌TikTok: https://www.tiktok.com/@siamlegal 📌LinkedIn: https://www.linkedin.com/company/siam-legal/ 📌YouTube: https://www.youtube.com/@SiamLegal