Estimated Chargeable Income (ECI) Filing for Singapore Companies: A Complete 2026 Guide
Estimated Chargeable Income — universally abbreviated to ECI — is one of the most misunderstood tax obligations for Singapore companies. Many directors know they need to file a tax return by 30 November each year, but are unaware that a separate, earlier filing is required: the ECI, due within three months of the financial year-end. [...]