Inland Revenue Authority Of Singapore (IRAS)
Taxes for our nation
30 Nov 2026
Corporate Income Tax
File Corporate Income Tax Return (Form C-S/ Form C-S (Lite)/ Form C)
Act now: File your YA 2026 Corporate Income Tax Return on myTax Portal to avoid late filing penalties.
Find out moreCertain digital services will be unavailable from 16 Dec 2026, and myTax Portal will be temporarily unavailable from 22 to 28 Dec 2026. Complete your transactions early.
FIND OUT MORELearn if your business qualifies for the SME Cash Grant 2026.
Find Out MoreIRAS plans to mandate the use of the ‘Revise/ Object to Assessment’ digital service for companies submitting revisions or filing objections to their tax assessments from 1 July 2027.
Find out moreNeed flexible payment options for your taxes? Enjoy the convenience of automatic deductions and choose from up to 12 interest-free monthly instalments with GIRO.
Find out moreLearn about the support packages available to early adopters of the GST InvoiceNow Requirement
FIND OUT MOREThe GST InvoiceNow Requirement will be extended to all GST-registered businesses progressively from Apr 2028 to Apr 2031. Prepare early to ensure a smooth transition.
Find Out MorePopular Topics
- Individual Income Tax rates
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- 2027 Property Tax Bill
- Singpass Foreign user Account (SFA) for Foreign Individuals