Running a Singapore company comes with a set of statutory obligations that must be met on time, every year. Missing filing deadlines triggers penalties from ACRA and IRAS, and in serious cases, can lead to the striking off of the company or prosecution of directors. Yet many business owners — particularly those running lean operations or relying on part-time bookkeepers — are caught out by deadlines they did not know existed.
This compliance calendar consolidates every significant filing deadline for a standard Singapore private limited company (Pte Ltd) with a 31 December financial year end. Use it as a planning reference and share it with your accountant, bookkeeper, and company secretary at the start of each year.
Key Regulatory Bodies and Their Deadlines
Singapore company compliance obligations arise from three primary regulatory bodies: ACRA (Accounting and Corporate Regulatory Authority), IRAS (Inland Revenue Authority of Singapore), and the Ministry of Manpower (MOM) for CPF and employment-related matters.
Monthly Obligations
CPF Contributions (Due by 14th of Each Month)
Employers must contribute CPF for all Singapore citizen and Permanent Resident employees by the 14th of each calendar month (for the preceding month’s wages). Late contributions attract interest at 18% per annum, plus potential penalties. CPF contributions must be submitted via the CPF Board’s e-Submission portal. Employers who also wish to claim CPF-related tax deductions must ensure contributions are made on time, as late contributions may affect deductibility for corporate tax purposes.
GST Filing (Quarterly, Monthly, or Annual)
Companies registered for GST must submit GST returns within one month after the end of each prescribed accounting period. For companies on a quarterly GST filing cycle (the most common), the deadlines are:
- January–March quarter: return due 30 April
- April–June quarter: return due 31 July
- July–September quarter: return due 31 October
- October–December quarter: return due 31 January
Companies with annual taxable turnover exceeding SGD 1 million (or those who have voluntarily registered for GST) must comply with these deadlines. Late or incorrect GST filing attracts penalties under the GST Act.
First Quarter (January–March) Obligations
January — Estimated Chargeable Income (ECI) Filing
The Estimated Chargeable Income (ECI) is a preliminary estimate of the company’s taxable income for the preceding financial year, submitted to IRAS within three months from the financial year end. For companies with a 31 December year end, ECI is due by 31 March.
Companies with annual revenue below SGD 5 million and ECI of zero (i.e. nil ECI) are exempt from filing, but must still verify that their ECI is indeed nil. Most actively trading companies must file, even if the ECI is modest. Failure to file ECI results in IRAS estimating the company’s income, which typically results in a higher tax bill.
March — IR8A Submission (Employee Income Reporting)
Employers with six or more employees must submit IR8A forms to IRAS by 1 March each year, reporting the total employment income (including bonuses, benefits-in-kind, and stock options) paid to each employee in the preceding calendar year. Employees use this information for their own personal income tax filing. Since 2023, all employers are required to submit IR8A electronically via the AIS (Auto-Inclusion Scheme) portal, and employees’ income is pre-populated in their MyTax Portal.
Second Quarter (April–June) Obligations
April — Annual General Meeting (AGM)
Under Section 175 of the Companies Act 1967, Singapore companies must hold their Annual General Meeting (AGM) within six months from the financial year end. For a company with a 31 December year end, the AGM must be held by 30 June. At the AGM, shareholders receive and adopt the financial statements, declare dividends (if any), appoint or re-appoint auditors, and transact other routine business.
Private companies with no more than 20 shareholders and no corporate shareholders may dispense with the AGM by obtaining a written resolution signed by all shareholders. However, any shareholder may still require the company to hold an AGM by written notice. For a detailed overview of AGM requirements, see our related article on Annual Return filing with ACRA.
May/June — Annual Return Filing with ACRA
The Annual Return (AR) must be filed with ACRA within seven months from the financial year end for listed companies, and within seven months for private companies with share capital. For a company with a 31 December year end, this means the AR must be filed by 31 July.
The AR must be accompanied by the company’s financial statements (unless the company qualifies for the small company audit exemption). Financial statements must comply with the Singapore Financial Reporting Standards (SFRS) or the SFRS for Small Entities, as applicable. ACRA imposes late filing penalties of SGD 300 per director per late AR, escalating to SGD 600 after 30 days.
Third Quarter (July–September) Obligations
July — Annual Return Deadline (7-Month Companies)
As noted above, for companies with a 31 December financial year end, the Annual Return filing deadline is 31 July. By this date, the AR must be filed and accepted by ACRA, and the financial statements (if required) must have been approved by the Board and filed as part of the AR package via Bizfile.
Fourth Quarter (October–December) Obligations
November — Form C-S / Form C Income Tax Filing
Singapore companies must file their corporate income tax return (Form C-S for companies with revenue below SGD 5 million and straightforward tax affairs, or Form C for larger or more complex companies) with IRAS by 30 November each year. This return covers the financial year ended 31 December of the preceding year.
Form C-S Lite is available for companies with annual revenue of SGD 200,000 or below, with an even simpler filing format. Companies must also claim any applicable tax incentives, capital allowances, and deductions in their income tax return. As discussed in our article on key changes to Singapore’s corporate tax rules in 2026, there are several updates to tax incentives and rates that companies should be aware of.
December — Year-End Preparation and Payroll
While December is typically quiet from a statutory filing perspective, it is the time to prepare for the following year’s obligations. Companies should:
- Close off the annual accounts and engage auditors if an audit is required;
- Calculate and declare year-end bonuses (which affect CPF and IR8A reporting);
- Review and update the Register of Controllers and other statutory registers if there have been any changes to shareholding or directorships. See our guide on nominee director and shareholder registers for details;
- Renew work passes for employees whose passes are expiring in the first quarter of the following year.
Summary Calendar Table (31 December Year End)
| Month | Obligation | Regulatory Body |
|---|---|---|
| 14th of every month | CPF contributions for previous month | CPF Board |
| 1 March | IR8A / AIS submission (employment income) | IRAS |
| 31 March | ECI filing (within 3 months of FY end) | IRAS |
| 30 April | Q1 GST return (Jan–Mar) | IRAS |
| 30 June | AGM (within 6 months of FY end) | ACRA / Companies Act |
| 31 July | Annual Return filing (within 7 months of FY end) | ACRA |
| 31 July | Q2 GST return (Apr–Jun) | IRAS |
| 31 October | Q3 GST return (Jul–Sep) | IRAS |
| 30 November | Form C-S / Form C corporate income tax return | IRAS |
| 31 January (next year) | Q4 GST return (Oct–Dec) | IRAS |
Ongoing Obligations Throughout the Year
In addition to the calendar deadlines above, Singapore companies have several ongoing obligations that must be met promptly when triggered by events:
- Change of directors, shareholders, or registered office: Must be notified to ACRA within 14 days of the change via Bizfile.
- Share allotments and transfers: Must be lodged with ACRA within 14 days. Our detailed guide on issuing new shares covers the process in full.
- Change of company name, business activity, or constitution: Must be notified to ACRA within 14 days (or prior approval obtained, in the case of name changes).
- Register of Registrable Controllers (RORC): Must be updated within two business days of any change in controlling interest.
Penalties for Non-Compliance
The penalties for missing Singapore compliance deadlines are real and cumulative. ACRA imposes flat-rate penalties for late Annual Returns and late AGMs. IRAS charges late filing penalties and surcharges for late income tax and GST payments. CPF Board charges 18% per annum interest on late CPF contributions plus potential composition fines. Repeated failures can trigger director disqualification proceedings under Section 155 of the Companies Act.
How to Stay Compliant
The most reliable way to stay on top of Singapore compliance deadlines is to engage a professional corporate secretary who maintains a compliance calendar on your behalf. A good company secretary will remind you of upcoming deadlines, prepare the required resolutions and filings, and liaise with ACRA, IRAS, and other regulatory bodies proactively.
Raffles Corporate Services provides comprehensive corporate secretarial services, including annual compliance calendar management, AGM preparation, Annual Return filing, and coordination with your accountants and auditors. Contact us to ensure your company never misses a deadline.
— The Editorial Team, Raffles Corporate Services