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Sri Lanka income tax calculator (2025/2026)

Estimate your annual liability across salary, freelance, interest and investment income — with 2025/2026 reliefs applied.

Personal relief
Rs 1.8M
Slabs
6% → 36%
Interest AIT
10%
Return due
30 Nov 2026

Reflects Y/A 2025/2026Reviewed by TaxWiseLast updated 13 June 2026Source: Inland Revenue Act No. 24 of 2017, Inland Revenue (Amendment) Act No. 02 of 2025, Inland Revenue Department

Your year

Show figures
= Rs 350,000 a month
Leave at 0 if you only earn a salary
Your bank already kept Rs 30,000 (10% AIT). It counts back.

Deductions · reliefs you can claim

Switch on what applies. Each one comes off before the slabs start.

Left to pay for the year
Rs 462,000
10.9% of your income goes to tax
Rs 38,500 a month
You keep 4MAlready kept by bank 30kStill to pay 462k
Assessable incomeRs 4,500,000
Personal relief− Rs 1,800,000
Taxable incomeRs 2,700,000
Income tax on the slabsRs 492,000
Less AIT your bank already kept− Rs 30,000
Left to payRs 462,000

Tax · slab by slab

6%Rs 60,000
18%Rs 90,000
24%Rs 120,000
30%Rs 150,000
36%Rs 72,000

Worked out with the TaxWise engine. Ignores APIT your employer already took and WHT on rent or fees; the full return credits those.

This is one piece of your return. See which schedules you file, which reliefs apply, and what the whole year comes to.

See your full profile

Sri Lanka 2025/2026 income tax slabs

On taxable income, after the Rs 1,800,000 personal relief. Your highest rupee lands in the 36% slab.

Income tax slabs for Y/A 2025/2026
Taxable income bandRateTax on bandRunning total
First Rs 1,000,000 6%Rs 60,000Rs 60,000
Next Rs 500,000 18%Rs 90,000Rs 150,000
Next Rs 500,000 24%Rs 120,000Rs 270,000
Next Rs 500,000 30%Rs 150,000Rs 420,000
Above Rs 2,500,000 ← your top rupee36%36% of the restRs 420,000 + 36%
Filing open now

Turn this estimate into IRD-ready schedules

Import salary, rent, dividends, and gains — TaxWise runs the same engine cage-by-cage and exports schedules for your IRD submission. You submit on the IRD e-Filing portal.

Start my returnReturn for Y/A 2025/2026 due 30 November 2026
In TaxWise
  • Aggregate every income type with PAYE, WHT, and APIT credits applied
  • Schedule 8 special rates, solar QP, and rent relief traced to each cage
  • Export Y/A 2025/2026 schedules and follow the IRD filing checklist
This calculator: One blended number. No Schedule 8 lanes, WHT matching, or return PDF.

Frequently asked questions

Rs. 1,800,000 per year (the personal relief). Taxable income is what remains after relief and qualifying deductions, floored at zero.

Estimator disclaimerResults follow the Inland Revenue Act and the 2025 Amendment for Y/A 2025/2026 but are not tax advice. Rounding, missing inputs and simplified assumptions can change the final figure. Only a return you submit to the IRD counts.