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Sole Proprietorship

Singapore Sole Proprietorship Registration & Business Guide 2026

2026 guide to Singapore sole proprietorship registration, ACRA fees, Medisave requirements, foreign-owner rules, renewal and unlimited liability.

Statutory Overview & Legal Framework

A sole proprietorship is the simplest business structure in Singapore, but it is not a separate legal entity from its owner. The owner is personally responsible for the business's debts and losses. Registration is completed through ACRA's Bizfile system. A local owner must generally be at least 18, meet the applicable residency requirement and satisfy the Medisave requirement if subject to self-employed Medisave rules. A foreigner living overseas must use a registered Corporate Service Provider (CSP) and appoint at least one authorised representative who is ordinarily resident in Singapore. The government fees are S$115 for one year or S$175 for three years, including the S$15 business-name application. Three-year registration is subject to the CPF Board's eligibility conditions. The registration can be renewed for one or three years, with renewal fees of S$30 or S$90 respectively.

Foreigners Registering a Sole Proprietorship

overseas Foreigner: A foreigner who lives overseas must engage a registered CSP to register the business and must appoint at least one authorised representative who is ordinarily resident in Singapore.

foreigner With Singpass: A foreigner with Singpass may be able to register through Bizfile where the applicable eligibility and residency requirements are satisfied.

moving To Singapore: A foreigner who wants to move to Singapore to run the business must separately satisfy the applicable immigration and work-pass requirements. Business registration alone does not grant a right to work or reside in Singapore.

local Representative: The authorised representative is a statutory position and is different from a hired service provider merely providing an address.

ACRA Sole Proprietorship Fees

name Application: S$15

one Year Registration: S$100 registration fee + S$15 name application = S$115 total

three Year Registration: S$160 registration fee + S$15 name application = S$175 total

one Year Renewal: S$30

three Year Renewal: S$90

three Year Condition: The three-year registration option is available only where the CPF Board conditions are met.

Medisave Requirements

initial Registration: Self-employed persons subject to the Medisave requirement must be up to date before reserving a business name or becoming a new owner of an existing business. The requirement is satisfied by paying the applicable Medisave amount in full or having an active instalment arrangement with CPF Board.

three Year Registration: For a three-year registration, the owner must meet the applicable CPF condition. ACRA states that this includes having no outstanding Medisave payable, or being on an instalment plan and making monthly contributions for at least 24 consecutive months.

renewal: For renewal, the owner must have made arrangements with CPF Board to pay MediSave in full or by monthly instalments. ACRA may not process a renewal where the required arrangement has not been made.

important: The Medisave requirement is not simply a general CPF contribution requirement for every business owner. It applies according to the self-employed and CPF rules applicable to the owner.

How to Register a Sole Proprietorship

Check Eligibility and Medisave

Confirm the owner's age, residency, bankruptcy status and any applicable Medisave requirement before reserving the business name.

Reserve the Business Name

Apply for the business name through Bizfile and pay the S$15 name-application fee. The approved name can be reserved for up to 120 days.

Prepare Business Details

Provide the proposed commencement date, business email, business address, activities and owner details. An authorised representative is required when all owners are overseas.

Submit the Registration

Register the sole proprietorship through Bizfile and pay S$100 for one year or S$160 for three years, subject to three-year eligibility.

Receive the UEN

After successful registration, ACRA issues the UEN and provides a link to download a free Business Profile.

Meet Ongoing Requirements

Keep the registration current, make required Medisave payments, update ACRA when business or position-holder details change and obtain any sector-specific licences before operating.

processing Time: Most registrations are approved soon after payment. Complex registrations may take up to 15 working days, while applications requiring referral-authority approval can take 14 to 60 days.

Business Address and Home-Based Businesses

A sole proprietorship must have a business address in Singapore. A P.O. Box cannot be used.

home Business: A small-scale business can use a residential address under the applicable Home Office Scheme.

hdb: HDB residents need approval from HDB before using the home address under the Home Office Scheme.

private Property: Private-property residents need the applicable URA approval before using the home address under the Home Office Scheme.

Registration with ACRA does not itself authorise every business activity at a residential property. HDB, URA and sector-specific licensing conditions may still apply.

Renewing a Sole Proprietorship

deadline: Renewal must be completed before the registration expires. ACRA allows renewal up to 60 days before expiry.

1 year

S$30

3 years

S$90

late Risk: Running the business after registration expires is an offence. ACRA may cancel the registration if it is not renewed, and outstanding Medisave arrangements can also prevent renewal or lead to earlier cancellation.

three Year Renewal: For a three-year renewal, ACRA requires either no outstanding Medisave payable or an instalment plan under which monthly contributions have been made for at least 24 consecutive months.

After Registration

requirements:

Renew the registration before expiry.

Keep required Medisave arrangements current where applicable.

Notify ACRA of changes to business or position-holder information within 14 days where required.

Keep the business and contact addresses current and compliant.

Check whether the business activity requires a licence or permit through the relevant Singapore agency or GoBusiness.

Report business income to IRAS and meet the applicable individual tax obligations.

Tax Treatment

A sole proprietorship is not taxed as a separate company. The owner's business profits are included in the owner's personal income and taxed according to the individual's applicable income-tax status.

resident Rate: For Singapore tax-resident individuals, the current progressive personal income-tax rates range from 0% to 24%.

non Resident Warning: Tax treatment can differ for non-resident individuals. The 24% figure should not be presented as a universal sole-proprietor tax rate.

comparison: Unlike a sole proprietorship, a Singapore Pte Ltd is a separate legal entity and is generally subject to corporate income-tax rules.

Frequently Asked Questions (FAQ)

The government fees are S$115 for a one-year registration and S$175 for a three-year registration, including the S$15 business-name application. The three-year option is subject to the CPF Board's eligibility conditions.

A local individual must generally be at least 18 and be a Singapore citizen, permanent resident or eligible FIN holder. Foreigners living overseas must engage a registered CSP and appoint an ordinarily resident authorised representative.

Self-employed persons subject to the CPF Medisave rules must be up to date before reserving a business name or becoming a new owner. The requirement can be met by paying the applicable amount in full or having the required instalment arrangement with CPF Board.

Yes, a qualifying small-scale home business may use a residential address under the applicable Home Office Scheme. HDB residents need HDB approval and private-property residents need the applicable URA approval before relying on the scheme.

The business is not taxed as a separate company. Its profits are included in the owner's personal income and taxed according to the owner's tax status. Singapore tax-resident individuals are subject to progressive rates from 0% to 24%, while non-resident treatment can differ.

You must renew before the registration expires to continue operating legally. ACRA allows renewal up to 60 days before expiry, and an expired registration can be subject to cancellation. Outstanding Medisave arrangements can also prevent renewal.

Legal Disclaimer: This page is general informational content, not legal, tax, immigration or business-registration advice. Eligibility can depend on the owner's residency, FIN or work-pass status, Medisave position, business activity and home-office arrangements. Check the current Bizfile, CPF, IRAS, HDB, URA and sector-specific requirements before registering or operating.

Verification Standard: Official ACRA and IRAS sources checked in August 2026. No government endorsement, approval, accreditation or official verification of this website is claimed.