Income Tax Return Calculator
Estimate your annual income tax (YA 2025/26): employment, rental, business and interest income, with reliefs.
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Estimate your annual income tax for the year of assessment 2025/26. Enter your yearly figures.
Income (annual)
Reliefs & tax already paid (annual)
Relief capped at Rs 600,000.
Capped at min(⅓ income, Rs 75,000).
Frequently asked questions
When is the Sri Lankan income tax return due?
For the year of assessment 2025/26 (1 April 2025 – 31 March 2026), the individual return is due by 30 November 2026. Filing is done online through the IRD e-Services portal, and you need a Taxpayer Identification Number (TIN).
Do I have to file if my employer already deducted APIT?
If employment is your only income and APIT was correctly deducted, your tax may already be settled — but filing a return is how you reconcile it, claim reliefs (rent, solar, donations) and recover any over-deduction as a refund. Anyone with rental, business or investment income generally must file.
What reliefs can I claim?
The personal relief of Rs 1,800,000, rent relief of 25% of rental income, solar relief up to Rs 600,000, and approved donations capped at the lesser of one-third of taxable income or Rs 75,000.
Need something custom-built?
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