Incorporating a Singapore company through ACRA’s BizFile+ portal typically takes one working day or less. But incorporation is not the finish line — it is the starting line. The moment your company number (UEN) is issued, a series of time-sensitive obligations begin. Miss them, and you face fines, penalties, and in some cases personal liability as a director.

This guide sets out everything you need to do after your Singapore company is incorporated, organised by urgency. Think of it as the post-incorporation checklist that every new Singapore business owner should have in hand on day one.

Within the First Month

1. Appoint a Company Secretary (Within 6 Months — but Do It Now)

Under Section 171 of the Companies Act 1967, every Singapore company must appoint a company secretary within six months of incorporation. The company secretary must be a natural person ordinarily resident in Singapore — a company cannot serve as its own sole director and company secretary.

While the law gives you six months, it is strongly advisable to appoint a company secretary at or before incorporation. The company secretary is responsible for maintaining the statutory registers, coordinating the first directors’ meeting, filing annual returns with ACRA, and handling resolutions. Delaying this appointment creates an administrative backlog from day one. For more on what the company secretary does, see our guide on corporate secretarial services in Singapore.

2. Confirm Your Registered Office Address

Your company’s registered office must be a physical Singapore address (not a P.O. Box) that is accessible and open during business hours. If you are using a virtual office address or your home address as your registered office, confirm this with your service provider or check HDB’s home office scheme rules if applicable. ACRA must be notified of any change of registered office within 14 days.

3. Hold the First Board Meeting and Pass Initial Resolutions

The first board meeting — or resolution in lieu of a meeting — is where the directors formally set the administrative foundations of the company. Key matters to resolve at the first directors’ meeting include:

  • Confirming the appointment of the company secretary
  • Adopting a company seal (if required — no longer mandatory but optional)
  • Approving the opening of the corporate bank account
  • Authorising directors and/or officers to sign on behalf of the company
  • Setting the financial year-end (FYE)
  • Confirming the company’s registered office address
  • Authorising the issue of share certificates

4. Open a Corporate Bank Account

Without a corporate bank account, your company cannot receive payments, pay suppliers, or run payroll. Most Singapore banks require the following to open a corporate account: ACRA BizFile+ company profile, director’s NRIC/passport, proof of registered office address, board resolution authorising the account opening, and in some cases, a personal interview with a director.

Allow two to six weeks for account opening — some banks are faster than others, and digital banks (such as Aspire, Airwallex, or ANEXT) can be significantly faster for qualifying businesses. Provide proof that paid-up capital has been deposited before issuing share certificates.

5. Issue Share Certificates

Once the paid-up capital has been deposited into the corporate bank account, share certificates should be issued to all shareholders. Under the Companies Act, there is no strict statutory deadline for issuing share certificates, but best practice is to issue them within one month of incorporation and record the details in the company’s Register of Members.

Within the First Three Months

6. Set Up Your Bookkeeping System

Singapore companies are required by law to keep proper accounting records that sufficiently explain the company’s transactions and financial position. Records must be maintained for at least five years from the end of the financial year to which they relate.

Set up an accounting software solution (Xero, QuickBooks, or a similar platform) or engage an external bookkeeper from the outset. Starting with clean books from day one is far easier than reconstructing records later. Clean accounting records are also essential for filing your Estimated Chargeable Income (ECI) with IRAS on time, which becomes relevant once your company has completed its first financial year.

7. Register for GST (If Applicable or Advantageous)

If you expect your company’s taxable turnover to exceed S$1 million within 12 months — whether based on actual performance or a signed contract — you must register for GST within 30 days of forming that belief. Failure to register on time can result in fines and retrospective GST liabilities.

Even if you are below the S$1 million threshold, consider whether voluntary GST registration is advantageous — particularly if your customers are mainly GST-registered businesses (who can claim the GST back) or if you incur significant GST on business purchases that you would like to reclaim. Note that from 1 April 2026, new GST registrants must adopt the InvoiceNow e-invoicing system. For the full picture on GST registration, see our guide on compulsory vs voluntary GST registration.

8. Appoint an Auditor (Or Confirm Audit Exemption)

Under Section 205 of the Companies Act, Singapore companies must appoint an auditor within three months of incorporation — unless the company qualifies for audit exemption as a small company.

A company qualifies as a small company (and is therefore exempt from the audit requirement) if it is a private company that meets at least two of the following three criteria:

  • Annual revenue not exceeding S$10 million
  • Total assets not exceeding S$10 million
  • Not more than 50 employees

If your company is part of a group, the group as a whole must also qualify as a “small group” for the exemption to apply. Most newly incorporated SMEs qualify for audit exemption in their first years. If you are unsure, seek confirmation from your company secretary or accountant within the three-month window — failure to appoint an auditor when required is an ACRA compliance breach.

9. Enrol in CPF and Register for Payroll (If You Have Employees)

If your company hires Singapore Citizens or Permanent Residents, you must register with the CPF Board as an employer and make CPF contributions by the 14th of the following month for each month in which salary is paid. Missed CPF payments attract late payment interest at 1.5% per month, plus the risk of prosecution. You must also register for the Skills Development Levy (SDL), payable monthly for all employees regardless of nationality.

For companies hiring foreign workers, you must apply for the appropriate work pass (Employment Pass, S Pass, or Work Permit) through MOM before the foreign employee starts work. Our full Singapore Payroll & CPF Guide 2026 covers rates, deadlines, and obligations in detail.

Within the First Year

10. File Estimated Chargeable Income (ECI) With IRAS

Within three months after the end of your company’s financial year, you must file an Estimated Chargeable Income (ECI) with IRAS — even if your ECI is zero. The ECI is an estimate of your company’s taxable profits for the year. Failure to file ECI on time can result in a composition amount being issued by IRAS, even if no tax is ultimately payable.

11. Lodge the Annual Return with ACRA

Every Singapore company must file an Annual Return with ACRA. For private companies not holding an AGM, the Annual Return must be filed within seven months of the financial year-end. The Annual Return confirms key information about the company — directors, shareholders, registered office, and financial statements.

For companies that are not audit-exempt, the financial statements submitted must be audited. For small companies, unaudited statements are filed. Our ACRA filing requirements guide explains the full process.

12. File Form C-S or Form C with IRAS (By 30 November)

By 30 November each year, your company must file its corporate income tax return with IRAS. Most SMEs with annual revenue of S$5 million or below can use Form C-S (a simplified form). Companies with revenue above S$5 million or with more complex tax situations file Form C. For companies with revenue of S$200,000 or below, Form C-S (Lite) is available — an even simpler version. For more on corporate tax obligations, see our Singapore Corporate Tax 2026 Guide.

Ongoing: Maintain Statutory Registers

Throughout the life of your company, you must maintain the following statutory registers — all of which your company secretary should be managing on your behalf:

  • Register of Members (shareholders)
  • Register of Directors and Officers
  • Register of Substantial Shareholders (if applicable)
  • Register of Registrable Controllers (UBO register)
  • Register of Nominee Directors (where applicable)
  • Minutes of all board meetings and shareholder meetings

From 31 March 2022, all Singapore companies must lodge their Register of Registrable Controllers with ACRA and keep it updated within two business days of any change. Failure to maintain and lodge this register is a compliance offence.

Your Post-Incorporation Compliance Summary

To keep all your deadlines in view, bookmark our Singapore Company Compliance Calendar 2026, which lists every ACRA and IRAS filing deadline by month. You should also review our guide on important compliance requirements for Singapore companies for an overview of ongoing obligations beyond the first year.

Conclusion

Incorporating a Singapore company is fast. Staying compliant after incorporation requires sustained attention — but it is entirely manageable with the right support. Missing early deadlines (particularly the company secretary appointment, auditor appointment, and ECI filing) creates a snowball effect that is far more costly to resolve than to prevent.

At Raffles Corporate Services, we provide end-to-end post-incorporation support: company secretarial services, bookkeeping, corporate tax filing, and work pass assistance — all from a single, ACRA-registered corporate service provider. Get in touch on the day your company is incorporated, and we will have everything in order from the start.

— The Editorial Team, Raffles Corporate Services