# What is a Registered Office in Singapore? (2026)

> The registered office is the official address of a Singapore company where notices and legal documents can be served — it must be a physical local address, open to the public for set hours.

_Updated 2026-07-09_

Source: /resources/glossary/registered-office

**In short:** A registered office is the official address of a Singapore company recorded with ACRA, where communications and legal notices can be served. It must be a physical address in Singapore (not a P.O. box) and be open and accessible to the public for at least a set number of hours on business days.

## What are the requirements for a registered office?

The registered office must be a physical location in Singapore. It must be open to the public for at least 3 hours during ordinary business hours on each business day. It is where the company keeps certain statutory registers and where official mail and legal documents are served. The minimum public-access hours are as commonly published; confirm the current requirement on ACRA before relying on the exact figure.

## Can I use a service provider’s address?

Many companies — especially those without their own premises — use the registered office address provided by their corporate service provider. Any change to the registered office address must be notified to ACRA via Bizfile+.

## Sources

- [ACRA — Registered office address and hours](https://www.acra.gov.sg/how-to-guides/registered-office-address)
- [ACRA — Bizfile+ portal](https://www.bizfile.gov.sg)

## Related

- [UEN (glossary)](/resources/glossary/uen)
- [Bizfile+ (glossary)](/resources/glossary/bizfile-plus)
- [When is the annual return due?](/resources/annual-return-filing-singapore)