ThaiUtilityTools for everyday tasks in Thailand
THEN
Home / Tax
English tools for Thailand

Thailand VAT and Withholding Tax Calculators

These tools use user-selected Thailand tax assumptions and do not decide which status or rate applies.

5tools

Choose a tool

Calculate Thai VAT, reverse VAT, withholding tax, invoice totals, and net payments.

Thailand VAT Calculator

Add Thailand VAT to a price before tax.

Open tool

Thailand Reverse VAT Calculator

Remove VAT from a VAT-inclusive amount.

Open tool

Thailand Withholding Tax Calculator

Calculate a user-selected Thai withholding tax rate.

Open tool

Thailand VAT and Withholding Tax Calculator

Calculate invoice total, withholding, and transfer amount.

Open tool

Thailand Net Payment Gross-up Calculator

Find the base needed for a target net payment.

Open tool

Choose from the amount you already have

  • Use VAT Calculator when you have a price before tax; use Reverse VAT when the total already includes VAT.
  • Use Withholding Tax for one selected deduction, or VAT and Withholding Tax when you need invoice and transfer totals together.
  • Use Net Payment Gross-up only when the desired amount received is known and the billing base must be worked backwards.