Thailand
Thai Government Lottery prizes carry a 0.5% stamp duty (1% for the charity lottery).
Government Lottery Office prizes are effectively income-tax-free but carry a 0.5% stamp duty on winnings (1% for charitable draws), collected when the prize is claimed. Winners keep the rest of the prize with no further Thai tax to pay.
2 years from the draw date.
Regulator: Government Lottery Office (GLO) — official site
Full country guide: every Thailand game, ranked, with tax rules. For a cross-border view, see lottery tax in every country and the after-tax prize calculator.
This page is general information, not tax advice. Rules change and personal circumstances matter — for a significant win, pay a local professional before you claim.
Last verified: 2026-08-29