Thailand VAT Calculator

Add or remove VAT at Thailand’s 7% standard rate — net, VAT and gross, instantly. Free, no signup.

VAT rate
Net
THB 1,000.00
VAT @ 7%
THB 70.00
Gross
THB 1,070.00

VAT in Thailand: the essentials

  • Standard rate: 7% (a reduced rate extended from the statutory 10%)
  • Registration: THB 1.8 million annual revenue
  • Return: PP30, filed monthly with the Revenue Department
  • Corporate tax: 20%

How to calculate VAT in Thailand

  1. Enter the amount. Type the amount — your net figure to add VAT, or a tax-inclusive figure to remove it.
  2. Choose add or remove VAT. Switch between adding VAT to a net price and backing it out of a gross price.
  3. Pick the rate. Select the VAT rate (default 7%).
  4. Read the result. See the net, VAT amount and gross total update instantly.

Stop calculating VAT by hand

KARR applies Thailand’s VAT automatically on every invoice, tracks the registration threshold, and prepares the return — flagging non-compliance before you file.

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Frequently asked questions

What is the VAT rate in Thailand?

The standard VAT rate in Thailand is 7% (a reduced rate extended from the statutory 10%).

How do I calculate VAT in Thailand?

To add VAT, multiply the net amount by the rate. At 7%, a 1000 net becomes 1070.00 gross. To remove VAT from a tax-inclusive price, divide it by 1.070. This calculator does both instantly.

When must I register for VAT in Thailand?

Registration: THB 1.8 million annual revenue, filed with the Revenue Department.

Is this Thailand VAT calculator free?

Yes — it is completely free, needs no signup, and runs entirely in your browser. For automatic VAT on every invoice and one-click returns, try KARR.

Read the full Thailand VAT & tax guides →

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Rates shown reflect Thailand’s published VAT rates and are provided for guidance only — confirm the rate for your specific supply. Not tax advice.