Not every business ends with a dramatic winding up. Many owners simply decide to stop trading – the side venture never took off, a partner is retiring, or the business is being folded into a private limited company. If you run a sole proprietorship or a general partnership rather than an incorporated company, closing it down is refreshingly simple compared with striking off a company. But “simple” is not the same as “automatic”: if you do nothing, your registration keeps renewing, fees keep accruing, and you remain personally on the hook for the obligations attached to a business that no longer trades.
This guide explains how to close a sole proprietorship or partnership in Singapore in 2026 – the legal basis, the ACRA cessation process, the tax and CPF loose ends to tidy up, and the traps that catch owners who assume the business just “expires”. It is written for the many Singaporeans and residents who registered a business under the Business Names Registration Act and now want a clean exit.
Sole proprietorships and partnerships are registrations, not companies
The first thing to understand is what you are actually closing. A sole proprietorship or a general partnership is a registered business name, not a separate legal entity. It is registered under the Business Names Registration Act 2014 (BNRA) and administered by ACRA. Unlike a private limited company, it has no separate legal personality: the owner (or the partners) and the business are legally one and the same. That is why closing it is governed by the BNRA and not by the winding-up and strike-off provisions of the Companies Act 1967 that apply to companies.
This single fact drives everything else. Because there is no separate legal person to dissolve, there is no liquidator, no strike-off application under section 344 of the Companies Act, and no ACRA gazette waiting period of the kind a company faces. You are simply telling ACRA that the registered business has ceased. If you are unsure which structure you have, our comparison of LLP vs Pte Ltd vs LP business structures in Singapore sets out the differences clearly.
Cessation of business: the ACRA process
To close a sole proprietorship or partnership, the owner files a cessation of business with ACRA through the BizFile portal. Under the BNRA, a registered person must notify the Registrar when the business ceases – it is a legal obligation, not an optional courtesy.
Who files and by when
For a sole proprietorship, the sole proprietor files. For a partnership, any partner (or the authorised representative) files on behalf of the firm. The cessation should be lodged promptly once the business stops trading; the BNRA requires notification of a change or cessation, and delaying it simply exposes you to renewal fees and possible enforcement. If the business registration is due to lapse anyway, you should still file a cessation rather than letting it expire, because a lapsed registration is not the same as a properly recorded cessation.
How to file
Cessation is filed electronically via ACRA’s BizFile portal using Singpass. There is no filing fee to cease a business name. The transaction is usually processed immediately, and ACRA updates the business status to “Cancelled” or “Ceased”. You can then download a free business profile showing the cessation date as evidence for banks, landlords and the taxman.
Partnerships: get every partner aligned first
In a partnership, the decision to cease should reflect the partnership agreement. If the agreement sets out how the firm is dissolved – notice periods, how remaining assets and liabilities are split, who settles outstanding debts – follow it. Where there is no written agreement, the default position under the Partnership Act 1890 applies, and a partnership at will can generally be dissolved by any partner giving notice. Sort out the internal split of assets and liabilities before you file, because once the registration is cancelled the firm no longer formally exists as a going concern.
Tax loose ends: don’t skip these
Ceasing the ACRA registration is the easy part. The obligations that outlive the business are where owners get caught. Because a sole proprietor or partner is taxed personally on the business income, cessation has direct consequences for your individual income tax.
Final income tax
Business profits up to the date of cessation remain taxable in the owner’s or partners’ hands and must be reported in the relevant Year of Assessment. Keep proper accounts up to the last day of trading, and retain your records for at least five years as IRAS requires. If you drew a salary or took profits, make sure these are captured correctly. IRAS guidance on ceasing a sole proprietorship or partnership explains how to report final results.
GST de-registration
If the business is GST-registered, you must apply to cancel your GST registration – generally within 30 days of ceasing to make taxable supplies. You will need to file a final GST return and account for GST on business assets on hand if the value is significant. For the mechanics, see our guide on how to cancel your GST registration in Singapore.
CPF, licences and other registrations
Stop CPF contributions once employees are released, and settle any outstanding CPF. Cancel any sector-specific licences, permits and memberships, close the business bank account, and terminate GIRO arrangements, insurance policies and subscriptions tied to the business. Notify your customers and suppliers, and settle outstanding invoices and debts – remember that as a sole proprietor or partner you remain personally liable for the business’s debts even after cessation.
Personal liability survives cessation
This is the most important warning in this article. Striking off a company can, in the ordinary case, draw a line under the company’s debts because the company is a separate legal person. Ceasing a sole proprietorship or partnership does not extinguish the owner’s or partners’ liabilities, because there was never a separate person to shield you. Creditors can still pursue you personally for debts incurred while the business traded. Cease the registration by all means, but settle or make arrangements for outstanding obligations first.
For partnerships, note too that partners are generally jointly liable for the firm’s debts. If one partner walks away without settling their share, the creditors can still look to the remaining partner. This is one reason many owners eventually convert to a private limited company for limited liability – a path we explain in our guide on Singapore corporate tax and the private limited structure.
Closing a business vs converting it
Before you cease, ask whether you actually want to close the business or convert it. Many owners cease a sole proprietorship only to incorporate a Pte Ltd and carry on the same trade with limited liability and better tax treatment. If that is your plan, the sequence matters: incorporate the new company, transfer the business assets and contracts across, then cease the sole proprietorship – so there is no gap in trading. Our team routinely handles both the incorporation and the cessation together so nothing falls through the cracks.
Quick checklist to close cleanly
- Settle or make arrangements for all business debts and outstanding invoices.
- Release employees, stop and settle CPF, and issue final payslips.
- File a cessation of business with ACRA via BizFile (free, usually immediate).
- Cancel GST registration and file the final GST return, if applicable.
- Cancel licences, permits, insurance, GIRO and subscriptions.
- Report final business income in the relevant Year of Assessment and keep records for five years.
- Close the business bank account and download a business profile confirming cessation.
Closing a sole proprietorship or partnership is one of the simplest exits in Singapore’s business landscape – but only if you tidy up the tax, CPF and liability threads that outlive the registration. Do it properly and you walk away clean; do it carelessly and the obligations follow you personally.
Raffles Corporate Services helps owners close sole proprietorships and partnerships, cancel GST, and – where it makes sense – incorporate a private limited company to continue the business with limited liability. We handle the ACRA filing and the loose ends so your exit is clean.
— The Editorial Team, Raffles Corporate Services