Thailand VAT Calculator: Add or Remove 7% VAT

Add or remove Thai VAT at 7%: the price with and without VAT and the VAT payable after input tax, with the rate extended until 30 September 2027.

VAT (7%)
β€”Amount without VAT
β€”Amount with VAT
β€”VAT payable

The statutory VAT rate is 10%; Royal Decree No. 807 keeps the reduced 7% (6.3% plus local tax) until 30 September 2027. Businesses register once turnover exceeds 1.8 million baht a year.

What it does


Value added tax in Thailand is charged at 7% on most goods and services and on imports. A VAT-registered business adds it to its prices, issues tax invoices and pays the Revenue Department the output VAT minus the input VAT on its purchases, monthly by form P.P. 30.

How to use it


  1. Type the amount.
  2. Choose whether it already includes VAT and add the input VAT of your purchases.
  3. Read the VAT, the amounts with and without VAT and the VAT payable.

The arithmetic runs in your browser. Nothing you type is sent anywhere and nothing is stored, so you can use these with real numbers.

Frequently asked questions


How do I add 7% VAT?
Multiply by 7%: on 1,000 baht the VAT is 70 baht and the total 1,070 baht. To take VAT out, divide by 1.07: 1,070 ÷ 1.07 = 1,000 baht.

Will VAT go up to 10%?
Not before October 2027. The 10% rate in the Revenue Code has been reduced to 7% by royal decree every year since 1999; the latest decree runs to 30 September 2027.

When must a business register for VAT?
When its annual turnover exceeds 1.8 million baht, within 30 days. Smaller businesses may register voluntarily; some activities, such as basic foods, are exempt.

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