
How to get a Tax Residency Certificate (TRC)
A TRC proves to another country that you are a Sri Lankan tax resident. IRD has published the ways to apply.

A client paying you more than Rs. 100,000 in a month may deduct 5%. Ask for the free WHT certificate — it reduces your tax.
Service fees from foreign clients received in foreign currency through a bank are taxed at a maximum of 15%.
Quarterly instalments + return by 30 November.
Get a Tax Residency Certificate (TRC) if a foreign client asks.

A TRC proves to another country that you are a Sri Lankan tax resident. IRD has published the ways to apply.

If you pay income tax in quarterly instalments, pay the 2nd instalment for 2026/27 by 15 November 2026.

If you are registered for income tax, file your 2025/26 return on or before 30 November 2026.

The final income tax payment for 2025/26 was due on 30 September 2026. If you missed it, pay as soon as possible.

The Inland Revenue (Amendment) Act No. 11 of 2026 was certified on 3 June 2026. Here are the changes that matter for ordinary people.

You can check your TIN on IRD e-Services. A printout showing your NIC and TIN may be accepted instead of the certificate.