Tax calculator

Thailand Withholding Tax Calculator

Calculate a user-selected Thai withholding tax rate.

Last reviewed: 14 September 2026

Enter details

Calculation result
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Calculated in your browser. Values are not sent to ThaiUtility.

Quick answer

Enter the income base and select a rate to see withholding and remaining payment.

Formula

Withholding = income base × selected rate ÷ 100.

Worked example

10,000 baht at 3%

Withholding is 300 baht and 9,700 baht remains.

Choose this tool when

Use this page for one selected withholding calculation. Use VAT and Withholding Tax when invoice total and transfer amount are both needed.

Assumptions and limitations

  • The tool does not select the legally correct rate.
  • Treatment depends on payment facts and exceptions.

Official sources

Last reviewed: 14 September 2026

Review again when the responsible authority changes the rule, rate, or effective period, or when this calculator's assumptions change.

Check the current Thai text and effective dates before relying on a result for tax, billing, employment, or legal purposes.