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Sri Lanka in numbers, context, and plain English.

HomeEconomyTools
PAYSLIP%

Income tax calculator

ExperimentalIRD rates

Your share of running the country.

Simple mode
Fast
No wizard. Type one income figure and tax is calculated on this page — the same results screen as Advanced, without the earlier steps.
Advanced mode
Full return
Step through tax year, each income source, and qualifying payments. Ends on the same results page, with a complete breakdown.