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Company Formation

Converting an Unlimited Business to a Limited Company

~7 min read

Reviewed by AIcountant Corporate Services Limited · TCSP Licence No. TC010997

Converting an Unlimited Business to a Limited Company

In short: Hong Kong law has no procedure for “converting” an unlimited business into a limited company. What actually happens is that you incorporate a brand-new limited company, transfer the business, assets and contracts across item by item, and then formally cease the old unlimited business. The government cost of the new company is the usual HK$3,895; transferring equipment, stock and goodwill generally attracts no stamp duty, but property and Hong Kong stock are the exceptions.

At a glance

Is there a direct conversion procedure?❌ No — in practice it is incorporate + transfer + cease
Government fees for the new companyHK$1,545 incorporation + HK$2,350 business registration = HK$3,895
Profits tax rates before and afterUnincorporated 7.5% / 15% → corporate 8.25% / 16.5%
Notifying the IRD of cessationIn writing to the Business Registration Office, within 1 month of ceasing
Transferring equipment, stock, goodwillGenerally no stamp duty
Transferring propertyAd valorem stamp duty, rates stepping up with value
Transferring Hong Kong stock0.2% in total (buyer and seller) + HK$5 fixed duty on the transfer deed
Two-tiered rates caveatBusinesses controlled by the same person are connected entities — only one may elect the two-tiered rates in a year of assessment

Fees, tax rates and stamp duty are as published by the Companies Registry and the Inland Revenue Department.

Why convert at all?

Three reasons come up most often.

Limited liability. An unlimited business — a sole proprietorship or partnership on a business registration — leaves the owner personally liable for every business debt. A limited company is a separate legal entity; a shareholder’s exposure is generally capped at what they put in.

Client requirements. Procurement at large corporates, government bodies and listed companies frequently requires suppliers to be limited companies. If you want that work, incorporating is the ticket in.

Fundraising and equity. A limited company can issue shares to bring in investors or partners. An unlimited business cannot.

Tax, notably, is not on that list. Many owners assume incorporating saves tax — the opposite is true on headline rates: the unincorporated two-tiered rates (7.5% / 15%) are lower than the corporate ones (8.25% / 16.5%). Where a company earns its keep is structural — deductible director’s remuneration and the salary-dividend mix — see the two-tiered tax rate guide, and for the full comparison of the three forms, limited company vs sole proprietorship vs partnership.

First, be clear: there is no “conversion”

Nothing in the Companies Ordinance upgrades an unlimited business into a limited company. What people call a conversion involves two legal entities:

  1. Incorporate a new limited company
  2. Transfer the business from the old entity to the new one
  3. Cease the old unlimited business properly

This framing matters, because it means contracts, bank accounts and licences do not carry over automatically. Each one has to be dealt with.

The actual procedure, in five steps

Step 1 — incorporate the new company. Government fees are HK$3,895, and electronic filing normally completes within a few working days — see the setup timeline and the full cost breakdown. The name can match or echo the old trading name; run a name search first.

Step 2 — sign a business transfer agreement and move the assets. List everything: equipment, stock, goodwill, customer lists, trademarks, receivables. Each asset needs a price, and the price should reflect market value — it feeds into both sides’ tax positions.

Step 3 — notify the IRD, on both ends. For the old business: written notice of cessation to the Business Registration Office within 1 month, then a final tax return drawing the line under its profits. For the new company: under the one-stop service, incorporation doubles as the business registration application, so nothing separate to file.

Step 4 — re-sign contracts, re-open banking, deal with staff. The new company is a different legal person. Client contracts, the lease and supplier agreements need re-signing or formal assignment; the bank account is opened afresh in the company’s name; employees are changing employer, so contracts, continuity of service and MPF arrangements need settling in writing.

Step 5 — formally close the unlimited business. Confirm every asset and liability has moved, the final filings are done, and cancel the old business registration. From there, the new company follows the usual post-incorporation checklist.

Stamp duty: which transfers cost money?

The good news: the assets a typical SME transfers — equipment, stock, goodwill, customer lists — are generally not chargeable to stamp duty. Two exceptions:

Property — ad valorem stamp duty applies, at rates that step up with the property’s value, per the government’s current scale.

Hong Kong stock — if the old business holds shares in other companies, the transfer attracts 0.2% in total (0.1% on each of the bought and sold notes) plus a HK$5 fixed duty on the instrument of transfer.

One more point: transfers between related parties are not priced at whim. A consideration visibly out of line with market value invites challenge from the IRD on both the profits tax and stamp duty sides.

The four traps people fall into

1. Timing that straddles the financial year. Transfer at the old business’s year end, or at least at a clean cut-off. A mid-year move splits one year’s profits across two entities and complicates the bookkeeping and audit on both.

2. Only one entity gets the two-tiered rates. In the transition year both entities exist, and businesses controlled by the same person are connected entities — only one may elect the two-tiered rates for that year of assessment; the other pays the standard rate on everything.

3. Licences do not transfer. Restaurant, travel, education and construction licences are issued to the operator, so the new company usually applies afresh. Ask the licensing authority about processing time before you move, or you risk an unlicensed gap.

4. Employees and MPF. Staff moving to the new company are changing employer. Continuity of service and MPF accounts should be agreed in writing beforehand, not assumed.

When not to convert

Low risk plus unstable profit — probably not worth it yet. A limited company carries fixed annual costs: company secretary, audit, annual filings, payable whether or not you make money. If claims against the business are unlikely and no client is demanding a company, staying unincorporated is entirely reasonable. The decision framework is in limited company vs sole proprietorship vs partnership.

The hard part is the timetable, not the incorporation

Setting up the new company is the quickest step. The real work is sequencing the asset pricing, the tax cut-off, and the contract and licence handover. We can handle the incorporation, the business registration filings and the transfer timetable for you.

Get started, or talk to us first.


This article is general information and does not constitute legal, tax or accounting advice. Government fees, tax rates, stamp duty and notification deadlines are as published by the Companies Registry, the Inland Revenue Department and the relevant legislation; seek professional advice on your specific circumstances.

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