Salary Tax Calculator Sri Lanka

Estimate your monthly APIT / salary tax in Sri Lanka based on your regular gross monthly employment income.

Enter your monthly salary

This calculator is designed for regular monthly income from primary employment. Bonuses, lump-sum payments, terminal benefits, and secondary employment may need separate APIT treatment.

Enter your monthly salary before APIT. Include taxable allowances and taxable benefits if they are part of regular monthly remuneration.
This is used only for the estimated take-home salary. It does not reduce the APIT calculation in this simple estimator.
Optional. Add staff loans, welfare, insurance, salary advances, or other payroll deductions if you want a take-home estimate.
Income up to approximately LKR 150,000 per month is normally covered by the annual personal relief of LKR 1,800,000, subject to eligibility and employment treatment.
Estimated Monthly APIT LKR 0
Estimated Take-Home Pay LKR 0
Annual Gross Salary LKR 0
Less: Personal Relief LKR 0
Taxable Income After Relief LKR 0
Estimated Annual Income Tax LKR 0
Monthly Employee EPF LKR 0
Other Monthly Deductions LKR 0
The APIT amount shown is an estimate based on annualizing your monthly salary. Your employer’s payroll system may calculate deductions using the official IRD APIT tables.

How your estimated tax is calculated

First, your monthly salary is annualized. Then the annual personal relief is deducted. The remaining taxable income is taxed using progressive income tax slabs.

Calculation step Amount applied Rate Tax for this step

Understanding your result

Monthly APIT

APIT means Advance Personal Income Tax. For employees, this is usually deducted by the employer from salary and remitted to the Inland Revenue Department.

Taxable income after relief

This is not your full salary. It is your annual gross salary after deducting the applicable personal relief used by this calculator.

Estimated take-home pay

This calculator estimates take-home pay by deducting monthly APIT, employee EPF, and any optional deductions you enter.

Formula used

  1. Annual Gross Salary = Monthly Gross Salary × 12
  2. Taxable Income = Annual Gross Salary − Personal Relief
  3. Annual Income Tax = Tax calculated using current individual income tax slabs
  4. Monthly APIT Estimate = Annual Income Tax ÷ 12
  5. Estimated Take-Home = Monthly Gross Salary − Monthly APIT − Employee EPF − Other Deductions
This calculator is for educational estimates only. It does not handle bonuses, lump-sum payments, terminal benefits, secondary employment, non-cash benefits, exemptions, arrears, or complex payroll situations.
Source: Inland Revenue Department of Sri Lanka, Tax Chart 2025/2026 and APIT Table No. 01.
View official IRD Tax Chart
View official APIT Table No. 01