FREE TOOL · COMPANY DEADLINES
ECI and annual-return deadline calculator
Enter your company's financial year end to calculate the IRAS ECI deadline and ACRA annual-return deadline—and check whether the common ECI filing waiver may apply.
Main source of income; separate-source income is generally excluded for the ECI waiver test.
Enter the amount before start-up or partial tax exemptions. Enter 0 if nil.
Your dates will appear here
Enter the company's FYE and financial figures to calculate both deadlines and check the common ECI waiver.
ECI deadline
ECI is generally due within three months after FYE. The common waiver requires annual revenue of S$5 million or below and nil ECI.
Annual-return deadline
The usual deadline is five months after FYE for listed companies and seven months for non-listed companies, with one extra month for an overseas branch register.
Official guidance
This calculator provides general information, not a filing extension, ruling or tax advice. Special entities and altered financial periods may require separate review. Rules checked 27 June 2026.