Income tax calculator

Quick estimates using the rates currently in force. Our team updates these tables every time the Finance Act changes.

Your details

AY 2025-2026

Tax-free threshold for this category: เงณ500,000

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Fill in your income on the left and hit Calculate. Nothing is stored or sent anywhere โ€” the whole calculation runs in your browser.

How this calculation works

  1. 1. Taxable income โ€” your gross annual income minus any income exempted under the Sixth Schedule.
  2. 2. Slab-by-slab tax โ€” the tax-free threshold is applied first, then each subsequent slab is taxed at its own rate. Only the portion of income inside a slab is taxed at that slab's rate.
  3. 3. Investment rebate โ€” deducted as the lowest of the three figures set under Admin โ†’ Tax rates โ†’ Calculation rules.
  4. 4. Minimum tax โ€” if your computed tax falls below the minimum for your area, the minimum applies instead.
  5. 5. Balance โ€” any tax already deducted at source or paid in advance is subtracted to give what you still owe.