.sg vs .com.sg: How Singapore SMEs Should Choose

The choice between .sg and .com.sg looks small until the domain is tied to company email, invoices and ad accounts. Both are Singapore country-code domains administered by SGNIC. They differ in who may register them, and both come with an identity check that catches many first-time registrants off guard.

This guide is for founders, marketing leads and IT owners who need to decide rather than browse. It covers eligibility, the practical differences, and the VerifiedID@SG step that can suspend a new domain if it is missed. The rules below reflect SGNIC and ACRA pages checked on 20 October 2026, so confirm current details with SGNIC before you register.

What each extension is for

SGNIC sets the eligibility rules for each Singapore extension. For most SMEs only two matter. .sg is the open category, and .com.sg is the commercial one. The table summarises SGNIC's published wording.

Both extensions remain subject to SGNIC’s general naming and reserved-name rules. Meeting the applicant eligibility requirements does not guarantee registration approval.

Other categories exist, such as .org.sg for registered organisations and .net.sg for network and hosting providers. They are narrower and rarely suit a typical SME. You can read the full wording on SGNIC's .sg categories and rules page.

How to decide: four common situations

• Registered Singapore company. .com.sg matches your entity and is the natural fit. .sg is equally open to you if the shorter name suits the brand.
• Company still being incorporated. SGNIC's wording for .com.sg covers applicants who are in the process of registering, so you do not have to wait for the final registration. Have the entity details ready for verification.
• Foreign corporation not registered in Singapore. You need a local agent as administrative contact for either extension. Decide who that is before you buy, because that person carries the verification step. A Singapore-incorporated business with foreign founders is not a foreign applicant.
• Freelancer, community project or personal brand. .sg is open to all persons, so it is the straightforward choice.

What the entity requirement means in practice

For .com.sg, the general route under SGNIC rule 8.2 is that your business is registered, or in the process of registering. A foreign corporation not so registered may instead apply under rule 8.3 by appointing and duly authorising a local agent as administrative contact. This does not guarantee that an application will be approved. Source: SGNIC Rules of Registration (rules 8.2–8.3, dated 1 August 2026).

ACRA issues the Unique Entity Number (UEN) when a business or company is registered, and its guidance notes that you use the UEN to deal with government agencies. The UEN also matters here because an organisation's administrative contact needs a valid UEN for VerifiedID@SG.

Sole proprietors and individuals can still use .sg without a company. If you expect to incorporate later, registering under the entity that will actually operate the business avoids a handover project down the line. ACRA's guide to setting up a local company explains name reservation and what you receive on approval.

VerifiedID@SG: the step that can switch a new domain off

VerifiedID@SG is SGNIC's programme to reduce fake identity information on .sg registrations. It applies to administrative contacts across the extensions. Based on SGNIC's FAQ, this is what you need to plan for:

• Who verifies. The administrative contact confirms the registrant's identity and contact details by logging in with Singpass (individuals) or Corppass (business users). A registrant with Singpass or Corppass can verify their own details but must also be listed as the administrative contact.
• What the contact needs. A valid Singapore NRIC or FIN for an individual, or a valid UEN for an organisation. SGNIC says the process should take less than five minutes.
• New domains. The administrative contact has a grace period of 21 calendar days from registration. If it is missed, SGNIC states that the domain will be suspended, meaning its website and emails cease to function. A one-time seven-day extension can be requested, and the domain cannot be renewed until verification is complete.
• Existing domains. After a change to the registrant's identity or contact information, the domain is not renewable until the administrative contact completes verification. WHOIS shows the status as VerifiedID@SG-Mandatory, -Pending or -OK.
• Exceptions. A SGNICID can be used in limited cases, such as local registrars managing many .sg domains or foreign entities that cannot appoint a Singapore contact. Applicants need a local presence and a Singapore postal address.

Because suspension affects email as well as the website, treat verification as part of launch, not an afterthought. Read SGNIC's VerifiedID@SG FAQ for the full rules.

A practical setup checklist

• 1. Confirm the owner. Decide whether the company, a sole proprietorship or an individual will hold the domain, and note the exact registered name.
• 2. Pick a durable administrative contact. Choose someone with Singpass or Corppass access who will remain with the business, or a local agent if you are a foreign applicant.
• 3. Check extension fit. Use the table above to confirm that .sg or .com.sg suits your entity status.
• 4. Review SGD pricing and GST. Compare current prices before you buy. Confirm at checkout and on your invoice whether GST is included, as price pages do not always say.
• 5. Verify early. Complete VerifiedID@SG as soon as the domain is registered, and set a calendar reminder for day one.
• 6. Record everything. Keep the registrar login, administrative contact and renewal date in a shared company record.
• 7. Connect services last. Point the website and company email at the domain once verification is complete.

Common mistakes to avoid

Should you register both?

It is not required. Some businesses register .sg and .com.sg together to reduce the chance of a competitor or lookalike taking the other, then redirect one to the other. Z.com Singapore's domain page lists free URL forwarding with 301 and 302 options, which covers the redirect itself.

The trade-off is admin. Each domain has its own renewal date and verification status, so track both in the same record. If budget or attention is tight, one well-managed domain is better than two neglected ones.

Z.com Singapore lists both .sg and .com.sg on its Domain Price List in SGD. The page does not state GST treatment, so confirm the final amount at checkout.

Frequently asked questions