Sri Lanka, Oct. 30 -- The Inland Revenue Department has announced that a valid Taxpayer Identification Number (TIN) certificate will be mandatory for eight specified transactions from November 1, 2026, under amendments to the Inland Revenue Act.

According to the department, the requirement has been introduced under the Inland Revenue (Amendment) Act, No. 11 of 2026, and will apply to persons specified under Section 102(3) of the Inland Revenue Act, No. 24 of 2017, as amended.

From November 1, individuals will be required to submit a valid TIN certificate when carrying out the following transactions:

1. Opening an account at any bank or financial institution.

2. Obtaining approval for a building plan.

3. Registering a motor vehicle....