Sri Lanka to require TIN for key transactions from November 2026

The Inland Revenue Department (IRD) has introduced mandatory requirements for a valid Taxpayer Identification Number (TIN) Certificate across multiple transaction categories, effective from November 1, 2026. The directive stems from provisions established through the Inland Revenue (Amendment) Act No. 11 of 2026, which aims to strengthen tax administration and broaden the tax base across the country.

The expansion of TIN requirements represents a significant administrative shift for businesses and individuals engaged in regulated transactions. By making TIN certification mandatory for key processes, the IRD seeks to enhance transparency and improve compliance within the tax system.

The implementation of these requirements will affect a range of stakeholders operating across different economic sectors. Individuals and entities are advised to ensure they obtain or update their TIN status ahead of the November deadline to avoid disruptions to their transactions and business operations.

The IRD has indicated that further details regarding the specific transaction categories affected will be communicated through official channels. Stakeholders are encouraged to maintain contact with the department for clarifications and guidance on compliance procedures as the effective date approaches.