Beware of Impersonation Scams

Government officials will NEVER do these things over a phone call:
1. Ask you to transfer money;
2. Ask you to disclose bank log-in details;
3. Ask you to install mobile apps from unofficial app stores;
4. Transfer your call to Police.

Call the 24/7 ScamShield Helpline at 1799 if you are unsure whether something is a scam. Learn more from our scam advisory. 

Inland Revenue Authority Of Singapore (IRAS)

Taxes for our nation

31 Mar 2026 Corporate Income Tax File Estimated Chargeable Income (ECI) (Dec financial year-end)
31 Mar 2026 International Tax Apply for Common Reporting Standard (CRS) Registration
18 Apr 2026 Individual Income Tax File Individual & Partnership Income Tax Return
30 Apr 2026 Goods And Services Tax (GST) File GST return (period ending in Mar)
31 May 2026 International Tax Submit Common Reporting Standard (CRS) return
31 May 2026 International Tax Submit FATCA return
30 Jun 2026 Corporate Income Tax File Estimated Chargeable Income (ECI) (Mar financial year-end)
31 Jul 2026 Goods And Services Tax (GST) File GST return (period ending in Jun)
30 Sep 2026 Corporate Income Tax File Estimated Chargeable Income (ECI) (Jun financial year-end)
31 Oct 2026 Goods And Services Tax (GST) File GST return (period ending in Sep)
30 Nov 2026 Corporate Income Tax File Corporate Income Tax Return (Form C-S/ Form C-S (Lite)/ Form C)
31 Dec 2026 Corporate Income Tax File Estimated Chargeable Income (ECI) (Sep financial year-end)
View all dates

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