Calculate.lk

Rates, sources and effective dates

Every rate used anywhere on Calculate.lk is listed here, with the document it came from and the date we last checked it against the publisher. Nothing on this site uses a rate that is not on this page.

Individual income tax

The rates below were introduced by the Inland Revenue (Amendment) Act, No. 02 of 2025, with effect from 1 April 2025. Personal relief is available to individuals resident in Sri Lanka and to non-residents who are citizens of Sri Lanka.

Year of assessment 2026/2027

1 April 2026 – 31 March 2027

Income tax bands for the year of assessment 2026/2027
Taxable incomeRate
Rs 0 – Rs 1.8Mpersonal relief0%
Rs 1.8M – Rs 2.8M6%
Rs 2.8M – Rs 3.3M18%
Rs 3.3M – Rs 3.8M24%
Rs 3.8M – Rs 4.3M30%
Above Rs 4.3M36%
Personal relief
LKR 1,800,000 a year
Service exports & foreign source income
15% maximum rate
Betting, gaming, liquor and tobacco business
45% flat
Gains on realisation of investment assets
10%
Withholding tax on interest or discount
10%

Last reviewed 2 September 2026

Year of assessment 2025/2026

1 April 2025 – 31 March 2026

Income tax bands for the year of assessment 2025/2026
Taxable incomeRate
Rs 0 – Rs 1.8Mpersonal relief0%
Rs 1.8M – Rs 2.8M6%
Rs 2.8M – Rs 3.3M18%
Rs 3.3M – Rs 3.8M24%
Rs 3.8M – Rs 4.3M30%
Above Rs 4.3M36%
Personal relief
LKR 1,800,000 a year
Service exports & foreign source income
15% maximum rate
Betting, gaming, liquor and tobacco business
45% flat
Gains on realisation of investment assets
10%
Withholding tax on interest or discount
10%

Last reviewed 2 September 2026 · previous year, kept for reference

EPF and ETF contributions

These are the statutory minimum rates. Individual employment contracts may provide for more, which is why the EPF calculator lets you override each rate.

Employee EPF
8%

Deducted from the employee’s earnings

Employer EPF
12%

Paid by the employer, on top of earnings

Employer ETF
3%

Employer only — there is no employee share

Last reviewed 2 September 2026.

Exchange rates

Calculate.lk publishes no exchange rates. Rates move daily, and a stale rate baked into a calculator would produce a confidently wrong answer. The foreign income calculator asks you for the rate your bank actually applied on the date the money arrived — which is also the rate that matters for tax purposes.

Where these rates come from

How these rates are kept current

Rates live in one configuration file rather than being written into individual calculators, so a change to Sri Lankan tax law is a single edit that flows through every page at once. Each record carries its own effective dates and source list, and previous years are kept rather than overwritten so that a calculation for an earlier year of assessment stays reproducible.

Where the published rules leave genuine room for interpretation — for example whether an employee’s EPF contribution reduces taxable employment income — we do not pick an answer silently. The assumption is stated on the calculator page, and wherever it materially changes the result, it is exposed as a control you can switch.

Found something out of date? Tax rules change, and this page carries the date each rate was last checked. Always confirm against the Inland Revenue Department before relying on a figure for filing or planning.

Calculators using these rates

Salary Calculator

Find your estimated take-home salary after deductions.

Income Tax Calculator

Work out your estimated Sri Lankan income tax, band by band.

Foreign Income Tax Calculator

For freelancers and remote workers paid from overseas.

Loan Calculator

Monthly instalment, total interest and a full repayment schedule.

Vehicle Leasing Calculator

What a vehicle lease really costs, flat rate or reducing balance.

EPF & ETF Calculator

Employee, employer and ETF contributions, month by month.