Is a TIN Mandatory for All Sri Lankans Over 18? Law vs. Misconception 📄

A widespread public belief that every individual over the age of 18 in Sri Lanka must mandatorily obtain a Tax Identification Number (TIN) is a legal misconception, according to analysis based on recent legislative changes. • The Legal Reality: Under the Inland Revenue Act, the legal obligation to register for a TIN is strictly tied to tax liability and income tax criteria, not age. An individual is legally required to get a TIN only if their annual net income exceeds Rs. 1,800,000. • Impact of 2026 Amendments: The recently enacted Inland Revenue (Amendment) Act, No. 11 of 2026, chooses a targeted approach rather than a blanket age mandate. It dictates that a TIN is required only when undertaking specified transactions or services, such as opening bank accounts, registering vehicles or lands, and establishing a business. • Status of the 2023 Gazette: The 2023 Gazette notification that originally sought to mandate registration based on age was effectively abandoned by the previous administration due to legality and feasibility issues. The 2026 amendment has now rendered that age-based directive obsolete. • Alternative for Tax Administration: To build a comprehensive taxpayer database without a colossal administrative burden, existing laws (Amendment Act, No. 45 of 2022) already permit inter-agency data sharing. The Inland Revenue Department can legally pull voter registration data directly from the Commissioner General of Elections. _Conclusion_: Unless an individual possesses taxable income or engages in the specific transactions designated by Parliament, obtaining a TIN remains a transaction-based requirement rather than a collective obligation for all adults.