Singapore Registered Office Hours: 3-Hour Rule Removed 20 Oct 2026
Singapore registered office opening hours: since 20 October 2026, a Singapore registered office no longer has to be open to the public three hours each…
Video update, 11 November 2026: Singapore Tax Filing Deadlines: ECI & Corporate Tax Return Guide (VIVOS Short, 45 s)
Missing a tax deadline in Singapore means penalties. Two dates to diarise: ECI (Estimated Chargeable Income) within 3 months of your financial year-end, and the annual corporate tax return (Form C-S/C) by 30 November.
Stay ahead: file ECI on time and keep clean accounts through the year.
▶ Watch on YouTube: Singapore Tax Filing Deadlines: ECI & Corporate Tax Return Guide.
Reviewed by Ray Tay, VIVOS. General information, not legal or tax advice.
Published: 10 March 2025 · Reviewed by Ray Tay, Co-Founder & Director, VIVOS PTE. LTD. (ACRA Filing Agent FA20240323 · MOM EA Licence 24S2425)
What is a Corporate Service Provider (CSP)?
A Corporate Service Provider (CSP) is a professional firm that offers business support services, including tax filing, accounting, compliance, and corporate advisory services.
Why should I engage a CSP for tax filing?
A CSP ensures accurate tax filing, helps businesses stay compliant, and provides expert tax planning to maximize savings while reducing risks of penalties.
Can a CSP help with GST compliance?
Yes, a CSP can assist with GST registration, filing, and compliance to ensure your business meets all Inland Revenue Authority of Singapore (IRAS) requirements.
Is hiring a CSP cost-effective?
Yes, outsourcing tax filing and accounting to a CSP can save time and money compared to hiring in-house accountants, allowing you to focus on core business operations.
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