Tax Calculators

Sri Lankan tax calculators.

Use the planning tools below, or open our detailed individual income tax calculator for YA 2026/2027.

New

Individual income tax calculator

Calculate employment, business, investment and foreign income with reliefs, special rates, tax credits and a transparent YA 2026/2027 breakdown.

Open individual tax calculator

Annual taxable income estimator

Enter your monthly salary, monthly other income, and estimated annual reliefs.

All amounts should be entered in Sri Lankan Rupees.

Provisional tax set-aside calculator

Estimate monthly and quarterly amounts based on annual taxable income and an expected effective rate.

Late payment penalty estimator

Estimate potential penalty amounts for planning conversations.