Thailand VAT calculator
Add VAT to a net price or take it out of a gross price for Thailand. The rate is filled in from QuoteBill's data and you can change it. Nothing you type leaves your browser.
What QuoteBill's data says about VAT in Thailand
The rate is shown as it was recorded in QuoteBill's data on 2026-09-17. That is not a statement that it is the rate in force today.
The statutory rate in the Revenue Code is 10%. The Revenue Department states that the current rate is 7%, a reduction that has been renewed every year since 1999.
- Name of the tax in the data
- VAT
- Standard rate in the data
- 7%
- Currency
- THB, 2 decimal places
- Source
- The Revenue Department of Thailand: Value Added Tax
- Kind of source
- The tax authority or the government
- Data checked on
- 2026-09-17
A worked example
Starting from a net amount of THB 1,234.00 at 7%: VAT comes to THB 86.38 and the gross amount to THB 1,320.38.
Starting from the gross amount of THB 1,320.38 at 7%: the net amount is THB 1,234.00 and the VAT is THB 86.38.
How the result is worked out
From a net amount: tax = net × rate, rounded half up to the smallest unit of the currency (THB: 2 decimal places). From a gross amount: tax = gross × rate ÷ (100% + rate) and net = gross − tax, so net and tax always add up to the gross amount.
A withholding or other deduction is worked out on the net amount, or on the amount with tax if you choose that, and taken from the gross amount to give the amount payable. You type its rate yourself; nothing is filled in.
Before you rely on it
Rates and rules change; reduced rates, exemptions and thresholds are not covered here; check with the tax authority or an adviser.
This is a calculator, not tax advice. QuoteBill does not say that the rate shown is current beyond the date given on this page.