Online / Offline Registration for TIN (Taxpayer Identification Number) at the Inland Revenue Department (IRD), Sri Lanka
“With effect from January 01, 2024, any individual who is at the age 18 years or more, or who attains the age of 18 years on or after January 01, 2024, it is mandatory to register with the Inland Revenue Department and obtain a TIN (Taxpayer Identification Number)”
Full Instructions & Online Links – How to obtain a TIN (Taxpayer Identification Number)?