Each year, the taxpayer must file a return together with the audited accounts required under the Companies Act to the Inland Revenue Authority of Singapore (IRAS) by 30 November (paper-filing) or 15 December (electronic filing) of the YA.
An Estimated Chargeable Income (ECI) is to be filed within 3 months from the end of the financial period.
The ECI Self-Pay Instalment Scheme (non-GIRO) will be discontinued with effect from 1 January 2015. All new instalment plans issued thereafter will be paid through GIRO only. For companies to continue to enjoy instalment plans, they will therefore need to set up a bank account in Singapore.
With an attempt to reduce the compliance cost on business, as announced by the second Minister for Finance on 7 March 2017, effective from YA 2017, companies with annual revenue of S$5,000,000 or below are qualified for filing of Form C-S.