A client signed off on selling 40% of his Hong Kong trading company for HK$2 million. Clean deal, solicitor's office in Kowloon, both sides happy. Then the Stamp Office asked for HK$12,005. The company had about HK$15 million of accumulated profits in the bank, and duty is charged on the value of the shares, not on the price the two sides agree.

Here is what a private company share transfer actually involves in 2026.

What a transfer costs

Since 17 November 2023 the rate is 0.1% on each contract note — a bought note for the buyer, a sold note for the seller — so 0.2% in aggregate, plus a fixed HK$5 on the instrument of transfer. Gifts are different: no contract notes, and the instrument is charged at HK$5 plus 0.2% of the value.

On the case above, consideration HK$2,000,000, share value HK$6,000,000. Duty runs on HK$6,000,000: HK$6,000 per note, HK$5 for the instrument, HK$12,005 in total, rounded up to the nearest dollar.

Each side is legally liable for its own note, but in practice one party stamps both. Say who bears the cost in the SPA — arguing after completion is a waste of everyone's time.

Valuation decides the bill

For unlisted shares the Stamp Office starts from the latest audited accounts and works out net asset value per share. Own property or investments, and expect a request for valuations and management accounts.

Common mistake: selling a company holding HK$5 million of cash for HK$1. That is a voluntary disposition — 0.2% of value plus HK$5. You save nothing and open an enquiry file.

There is a legitimate lever. Strip out distributable profits by dividend before completion and net asset value falls, so the duty falls with it. Two conditions: the distribution must be lawful under the Companies Ordinance, and the sequence has to be right — dividend declared and paid, accounts updated, then the transfer executed. Paying a dividend out of capital to shrink a stamp duty bill is how a clean deal becomes a section 275 problem.

Negative net assets are the mirror image. Liabilities above assets means the shares carry no value, and a nominal price is defensible.

Deadlines and the penalty ladder

Contract notes: within 2 days if the sale is effected in Hong Kong, 30 days if elsewhere. The instrument of transfer should be stamped before execution if signed in Hong Kong — stamp certificate first, signatures second — or within 30 days of execution abroad. Gifts run on 7 days locally, 30 days abroad.

Pay attention: the two-day clock runs from the trade, not from the day your lawyer receives the signed bundle.

Late stamping costs 2 times the duty up to one month, 4 times between one and two months, 10 times beyond two months. A HK$12,000 bill three months late becomes HK$120,000.

Most transfers now go through IRD's eTAX platform: register a BTP account, upload the transfer details and supporting documents, pay by FPS or card, download the certificate, attach it to the original instrument. Keep the stamped originals — the Collector can call for them for six years.

What you file, and what you don't

Nothing goes to the Companies Registry at the point of transfer. It is reported in the first annual return (NAR1) filed afterwards. NAR1 costs HK$105 within 42 days of the anniversary; late, it climbs to HK$870, HK$1,740, HK$2,610 and HK$3,480.

An allotment is different: Form NSC1 within one month, and no stamp duty, because nothing is transferred.

Internally, update the register of members and issue a new certificate against the cancelled old one — until that happens the buyer is not a member. If control of 25% or more changes hands, update the significant controllers register within 7 days of the company becoming aware.

Board paperwork before the register changes

Check the articles first: pre-emption rights, director approval, restrictions on transfers to outsiders. A transfer that ignores them can be refused registration, and the buyer ends up holding something the company will not record.

• Instrument of transfer signed by transferor and transferee
• Bought and sold notes
• Board resolution approving the transfer and directing registration
• Cancelled old share certificate, new certificate for the buyer
• Stamp certificate attached to the instrument

Two checks buyers should run

You are buying the company, so its liabilities come with it. Pull the latest NAR1 and filed accounts, check profits tax returns and any outstanding IRD demand notes, search the charges register, and confirm the business registration certificate is current. MPF arrears and undeclared offshore claims surface during the first audit after completion.

If the seller is a mainland China tax resident, the gain may also be reportable in China. Local practice on direct transfers of offshore shares varies, so get a written position before you sign.

Group relief, if both sides are related

Transfers between associated bodies corporate can claim section 45 relief. The Stamp Duty (Amendment) (No. 3) Bill 2026, gazetted on 2 October 2026, cuts the association threshold from 90% to 75% and extends relief to bodies without share capital. It is intended to apply to instruments executed on or after 25 February 2026, subject to enactment, and relief is clawed back if the companies stop being associated within two years.

Get the sequence right

Valuation first, then stamping, then the register. Owners who reverse that order spend months unpicking it. Planning a transfer, a restructure or a share buy-back? Send the latest accounts and cap table to info@lcpa.com.cn or call 00852-55749538 — we handle the stamping, the NAR1 update and the audit trail that follows.

This article is general information, not tax or legal advice. Confirm the current position with the Inland Revenue Department or a qualified adviser before completing a transfer.