Is this calculator an official government tool?

No. It is an independent planning tool built on published reference rules and does not replace official filing or adviser review.

Can I rely on this estimate for filing or payment?

Use it for planning only. Verify the final tax, payroll, customs or wage position with the responsible authority before filing or payment.

Thailand business reference

Personal income tax estimator

Estimate Thailand personal income tax using the published progressive brackets on the official Revenue Department page.

2026-07-12Not official

Personal income tax estimator

Annual taxable income

Estimated PIT: 0 THB
Effective rate: 0%

How the PIT estimator works

The estimator applies progressive personal income tax brackets to annual taxable income. It is useful for fast planning, but it does not replace official tax computation, deductions, allowances or adviser review.