Every Singapore company must have a registered office address in Singapore at all times. This is a mandatory requirement under the Companies Act (Cap. 50) and the obligation applies from the moment of incorporation until the company is struck off or wound up.

This guide explains the registered office requirement in full: what counts as a compliant address, when your office must be open, how virtual offices work, and the consequences of non-compliance under CALA 2025.

What Is a Registered Office Address?

A registered office address is the official address on record with the Accounting and Corporate Regulatory Authority (ACRA). It is the address to which all formal correspondence — government notices, ACRA communications, court documents, and official correspondence — is sent.

It is also the address that appears on the ACRA Bizfile public register and on all official company documents, including invoices, letters, and contracts.

The registered office address is distinct from the company’s operating or trading address. A company may operate from a different premises and still maintain a separate registered office address.

Legal Requirements Under the Companies Act

Section 142 of the Companies Act sets out the key requirements for a registered office:

Must Be in Singapore

The registered office must be physically located in Singapore. A foreign address, a P.O. box, or a mailbox address without a physical location does not satisfy this requirement.

Must Be Accessible During Business Hours

The registered office must be open and accessible to the public for at least three hours during ordinary business hours on each business day. This is important: ACRA inspectors or members of the public must be able to inspect the company’s registers and records at the registered office during these hours.

Must Be Notified to ACRA

The registered office address must be filed with ACRA. Any change of registered office address must be notified to ACRA within 14 days of the change. Filing is done via ACRA’s Bizfile+ portal.

Company Records Must Be Available

Certain statutory registers and records must be kept at or accessible from the registered office. These include the register of members (shareholders), the register of directors, the register of controllers (nominees register), and the minutes of general meetings. Under ACRA’s updated rules, the company secretary is responsible for maintaining these records accurately.

Can You Use a Home Address as Your Registered Office?

Yes — but with conditions. Under the Home Office Scheme administered by the Urban Redevelopment Authority (URA) and Housing Development Board (HDB), a homeowner may use their residential address as the registered office address of a business. However, the scheme comes with restrictions:

No business signage is permitted on the exterior of the residential property. No clients, customers, or employees may visit the home for business purposes. No goods may be stored at the premises in connection with the business. The business must be ancillary to the residential use of the property.

For most incorporated companies with external clients, employees, or any meaningful commercial activity, a home address is not a practical registered office solution. Most founders choose a virtual office service instead.

What Is a Virtual Office for Registered Office Purposes?

A virtual office service provider supplies a physical commercial address in Singapore which may be used as your company’s registered office address. The service provider handles incoming mail, provides a staffed reception to receive documents and couriers during business hours, and in many cases provides access to meeting rooms on a pay-per-use basis.

Virtual office services are widely used by:

Newly incorporated companies that do not yet have a physical office space, small businesses and home-based businesses that want a professional commercial address, foreign companies setting up a Singapore subsidiary before committing to a lease, and holding companies, SPVs, and dormant companies that have no operational need for a physical space.

Is a Virtual Office Legally Compliant?

Yes — provided the virtual office provider maintains a physical presence at the address and the address is accessible during business hours. The Companies Act does not require the company itself to have staff physically present at the registered office; the requirement is that the address be a real, accessible location in Singapore.

Using a professional registered office address service from an ACRA-licensed corporate service provider satisfies the legal requirement. The service provider ensures the address is open during business hours, can receive statutory notices and process-served documents, and will forward mail to the company.

Singapore Secretary Services provides registered office address services as part of its corporate secretarial packages. To enquire, email [email protected] or WhatsApp +65 8501 7133.

Choosing the Right Registered Office Address

When selecting a registered office address, consider the following factors:

Location and Prestige

For companies that deal with clients or investors, the registered office address appears on all public documents and the ACRA register. A central business district address (such as Raffles Place, Tanjong Pagar, or One Raffles Quay) can signal credibility and professionalism — particularly important for financial services, legal, or consulting firms.

Reliability of Mail Handling

Statutory notices, IRAS assessments, and ACRA correspondence are sent to the registered office. If important mail is missed — particularly notices of default, court documents, or tax demands — the consequences can be severe. Ensure your registered office provider has robust mail handling and prompt forwarding.

Licensing and Compliance

The registered office address must be provided by a party that is authorised to do so. Under the Corporate Service Providers Act (effective 2021) and its CALA 2025 amendments, any business providing registered office services as a corporate service provider must be registered with ACRA as a filing agent and must comply with anti-money laundering obligations. Engaging an unregistered provider creates compliance risk for your company.

Changing Your Registered Office Address

If your company moves its registered office — whether from a virtual office to a physical space, or from one service provider to another — you must notify ACRA within 14 days of the change. Filing is done via Bizfile+.

The steps are:

First, confirm the new address is ready and operational. Second, update your company’s internal records (directors’ resolution noting the change). Third, file the change with ACRA via Bizfile+ (Form 45 or equivalent update). Fourth, update all company documents, letterheads, invoices, and website with the new address. Fifth, notify relevant parties (bank, IRAS, key business contacts) of the change.

Failure to update ACRA within 14 days is an offence under the Companies Act. Your company secretary should manage this process to ensure the filing is done correctly and on time.

Penalties for Non-Compliance: CALA 2025 Updates

The Companies (Amendment) Act 2025 (commonly referred to as CALA 2025) strengthened enforcement around company address and registered office requirements. From 6 May 2026, the penalty framework includes:

Failure to maintain a registered office: Fine of up to S$5,000 for the company and every director in default.

Failure to notify ACRA of a change within 14 days: Fine of up to S$5,000 per director in default, plus a continuing fine for each day the contravention continues.

False or misleading information filed with ACRA: Fine of up to S$20,000 per director, and/or up to 12 months’ imprisonment for wilful false filings.

Directors are personally liable for address-related compliance failures. This makes maintaining a reliable registered office arrangement — and promptly updating ACRA when anything changes — a matter of personal risk management, not just administrative housekeeping.

Registered Office vs Business Address vs Operational Address

These three terms are often confused but serve different purposes:

The registered office address is the official ACRA-registered address. It must comply with the Companies Act requirements above. It is used for official correspondence and statutory purposes.

The business address (also called the principal place of business) is the address where the company primarily conducts its business operations. This may be the same as the registered office or different. It should be consistent with the company’s SSIC activity code and any relevant business licences.

The operational address is simply where the company’s staff work or where goods are stored. It need not be notified to ACRA unless it is the registered office or principal place of business.

Registered Office Requirements for Foreign Company Branches

A foreign company that establishes a branch in Singapore (rather than incorporating a subsidiary) has slightly different requirements. The branch must also maintain a registered office address in Singapore, and it must appoint at least one authorised representative who is a Singapore resident. The authorised representative’s particulars are filed with ACRA and are publicly visible.

For foreign companies, the registered office address is especially important because it is the address from which the authorised representative can be contacted and at which statutory notices may be served.

Practical Setup: Getting Your Registered Office Right from Day One

Most companies in Singapore set up their registered office at the time of incorporation. The ACRA incorporation form requires a Singapore registered office address — you cannot complete the incorporation without one.

The most efficient approach for new companies is to engage a corporate secretarial firm that bundles the registered office address with the company secretary appointment. This means your registered office is immediately compliant, your company secretary is appointed (satisfying the six-month requirement under the Companies Act), and your ACRA correspondence is handled by a professional from day one.

For companies that need to set up or change their registered office address, email [email protected] or WhatsApp +65 8501 7133.

For more on what a company secretary does and why the appointment matters, see our guide to Singapore company secretary requirements.

— The Editorial Team, Raffles Corporate Services