Sri Lanka’s tax incentives, like Colombo Port City’s holidays, risk irrelevance under OECD’s 15% global minimum tax (Pillar Two). Large MNCs’ “top-up taxes” now flow to parent countries (e.g., UK/India), not Sri Lanka. The solution? Adopt a Domestic Minimum Top-up Tax (DMTT) to retain revenue and pivot to non-tax FDI incentives. Without urgent reforms, Sri Lanka’s tax sovereignty and investment appeal face severe erosion.





