Sri Lanka Income Tax
Estimate income tax in Sri Lanka from taxable earnings.
About Sri Lanka Income Tax
A simplified income-tax estimate in Sri Lanka. This uses the tax rate you enter as a reference.
Formula
Tax
Tax = taxable income × rate
Worked example
With the default values below, Sri Lanka Income Tax returns Estimated Tax of රු. 16,000.00. Change any input above and every figure here is recalculated in your browser.
Inputs used
- Taxable incomeminimum 0
- 80,000
- Assumed tax rateaccepts 0–60
- 20
Results
- Estimated Tax
- රු. 16,000.00
- After Tax
- රු. 64,000.00
- Effective Rate
- 20.0%
- Rate Applied
- 20.00%
Step by step
- 1Values used
- 2Tax
- 3Estimated Tax= 16,000.00
- 4After Tax= 64,000.00
- 5Effective Rate= 20.0
- 6Rate Applied= 20.00
Assumptions and limits
- The result is derived only from the 2 inputs listed above. Anything not among them is not part of the calculation.
- In particular, this calculator does not take inflation, fees or charges or compounding frequency into account.
- Figures are rounded for display to 2 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
- Approximate estimate — not tax advice.
How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.
Approximate estimate — not tax advice.
Frequently Asked Questions
Is this a real tax return?
No — a rough planning estimate. File-year brackets and deductions differ.
How accurate is this estimate?
Rates are approximate reference values. Local rates, exemptions and rules can differ, so treat the output as a planning figure only.
Related Calculators
Sri Lanka specifics
- Currency
- Rs LKRSri Lankan Rupee
- Region
- Asia
- Country code
- LK
- Amounts look like
- LKR 1,234,567.89
- Dates look like
- Mar 9, 2026
- Units
- metricWeek starts Monday
Results on this page are expressed in LKR (Sri Lankan Rupee). Figures are estimates for general planning — confirm current rates and thresholds with the relevant Sri Lanka authority before relying on them.