How this calculator works
- Choose the tax type first, then enter only the numbers needed for that calculation.
- The calculator applies the published 2025/2026 Sri Lanka tax chart rates for common tax categories including APIT, VAT, SSCL, WHT, and company tax.
- Results update instantly with a plain breakdown so you can use the page for quick checks instead of switching between multiple tax references.
Worked example
For annual ordinary income of LKR 3,600,000.00, the resident individual tax mode automatically applies the personal relief of LKR 1,800,000.00 before calculating the tax bands.
Important assumptions
- This calculator uses the IRD tax chart for year of assessment 2025-2026, last updated on August 28, 2025.
- The resident individual mode auto-applies the standard personal relief and lets you enter any additional deductions or reliefs separately.
- VAT is calculated at 18%, SSCL at 2.5% on the liable turnover base, and WHT depends on the selected payment category and thresholds.
FAQ
Are these calculators free?
Yes. lankacalculator tools are free to use and designed to be quick to access without sign-up.
How accurate are the results?
The calculators use clear assumptions and formulas, but results are estimates and should be checked against official documents or provider terms.
Can I use this on mobile?
Yes. The layout is built to work cleanly on phones, tablets, and desktops.
Do you store my inputs?
No account is required for these tools, and calculator inputs are not stored as user profiles in this v1 setup.