Hong Kong companies trade with the Mainland and the Greater Bay Area under CEPA, which gives zero tariffs on Hong Kong-origin goods that meet the rules of origin and preferential access for many services. Contracts, currency, tax invoices and permanent establishment risk then follow Mainland rules, so each deal needs its own check.
The Mainland and Hong Kong Closer Economic Partnership Arrangement, known as CEPA, was signed in 2003 and has been extended by a series of supplementary agreements. For goods, products of Hong Kong origin that satisfy the agreed rules of origin enter the Mainland at zero tariff, and the Trade and Industry Department issues the certificate of Hong Kong origin that Mainland customs expects to see. For services, CEPA improves market access and reduces thresholds for Hong Kong service suppliers in a long list of sectors, and the department issues the Hong Kong Service Supplier certificate used to support applications.
Origin is not about where a company is incorporated. It depends on where the goods are made and how much processing or value is added in Hong Kong, so a trader who only re-labels goods bought on the Mainland usually does not qualify. Check the specific rule for the product code before quoting a duty-free price, and keep the manufacturing records that prove the origin.
Services suppliers must show that they are genuine Hong Kong businesses, typically with a period of substantive operation, local employees and a business registration. A shell with a Hong Kong address and no activity is unlikely to qualify.
The Guangdong-Hong Kong-Macao Greater Bay Area groups Hong Kong, Macao and nine Guangdong cities: Guangzhou, Shenzhen, Zhuhai, Foshan, Huizhou, Dongguan, Zhongshan, Jiangmen and Zhaoqing. For a Hong Kong business it means a manufacturing and customer base that is a short journey away, but each city has its own regulators, licensing practices and local incentives, and a pilot scheme that works in Shenzhen does not automatically apply in Foshan.
The practical question is usually which legal entity holds the contract. Selling from Hong Kong to a Mainland importer is one model; setting up a Mainland subsidiary or a representative office is another with its own registration, tax and foreign-exchange rules. Each choice shifts where profits are taxed and who bears import duties and Mainland VAT.
Staffing is the second question. Hong Kong employees who spend long periods working in a Mainland city can trigger Mainland individual income tax and social insurance duties, which the Hong Kong employer must plan for. The topic of posted staff is covered separately in this cluster.
Hong Kong is the main offshore renminbi centre, and many Mainland counterparties prefer to settle in RMB. Decide the invoice currency in the contract, specify which bank account receives payment and state who bears conversion cost and bank charges. Mainland foreign-exchange controls still apply to the Mainland party, so allow time for approvals when large sums are involved.
A Hong Kong invoice is not a fapiao. The fapiao is an official tax invoice issued within the Mainland tax system, and a Mainland customer that needs one for its own deductions has to obtain it from a Mainland entity or through the arrangement it agrees with you. Raise this at the quotation stage; discovering at payment that the customer expects a fapiao from a Hong Kong supplier causes weeks of delay.
Keep a commercial invoice that matches the contract, the shipping documents and the payment, and state clearly whether prices include delivery, duties and Mainland taxes. Each of those items changes the margin when goods cross the boundary.
A Hong Kong company that sends staff to the Mainland, signs contracts there or uses a local agent can create a permanent establishment, which means part of the profits becomes taxable in the Mainland. The arrangement between the Mainland and Hong Kong on avoidance of double taxation sets the tests, including a time-based test for services performed by staff present in the Mainland. Counting days per employee and per project is therefore a tax control, not an administrative nicety.
Dividends, interest and royalties paid from the Mainland to Hong Kong can bear withholding tax, reduced under the arrangement where conditions such as beneficial ownership and holding percentage are met. Your tax adviser should confirm the rate and the paperwork before the first payment, since the Mainland payer usually applies the lower rate only on receipt of supporting documents.
On the Hong Kong side, profits from a trade carried on in Hong Kong remain taxable here even if customers are in the Mainland, unless the facts support an offshore claim. The tax treatment of a given deal should be agreed between the Hong Kong and Mainland advisers before the contract is signed.
Choose governing law and the forum deliberately. Hong Kong arbitration awards are enforceable in the Mainland under a long-standing arrangement, and since January 2024 a new framework allows more Hong Kong and Mainland civil and commercial judgments to be recognised and enforced across the boundary. Which route is better depends on the contract, the counterparty's assets and the type of claim, so take legal advice when drafting the dispute clause.
Personal data of customers and staff moves across the boundary in trade and HR processes. The Personal Data (Privacy) Ordinance (Cap. 486) governs Hong Kong data users, and the Mainland has its own personal information protection law with rules on cross-border transfers. Record what data you hold, why, where it is stored and who can see it.
A shared contact file is where such mistakes start. 4softcrm keeps contacts, leads and deals and lets you send e-mail and SMS from the contact record, which helps you see the history of each Mainland customer in one place; it does not translate, does not check consent rules and does not connect to Mainland systems. 4softerp holds the financial books of several entities in one module, useful when a Hong Kong company and a Mainland affiliate both trade with the same customers, and it does not file tax or customs documents.
RMB and HKD transactions share one ledger with manually entered rates, distorting the profit figure.
Agree with your accountant how RMB and HKD transactions and exchange differences are recorded in your books in 4softerp. Rates are not fetched or applied automatically.
Mainland customers’ contracts, quotations and correspondence are scattered across WeChat and email.
Keep quotes, contracts and follow-ups with Mainland customers in a CRM (4softcrm) instead of chat apps and e-mail threads, and share access with your team.
CEPA is the Mainland and Hong Kong Closer Economic Partnership Arrangement, in force since 2003 and expanded since. Hong Kong-origin goods that meet the rules of origin enter the Mainland at zero tariff, and Hong Kong service suppliers get preferential market access in many sectors. Benefit depends on origin rules and on being a genuine Hong Kong business, not just a registered one.
The Greater Bay Area includes Hong Kong, Macao and nine Guangdong cities: Guangzhou, Shenzhen, Zhuhai, Foshan, Huizhou, Dongguan, Zhongshan, Jiangmen and Zhaoqing. Each city has its own regulators, licensing practices and local incentives, so a scheme in one city does not automatically apply in another. Check requirements with the local authority or an adviser before committing.
No. A fapiao is an official tax invoice issued within the Mainland tax system. A Hong Kong company issues commercial invoices. If a Mainland customer needs a fapiao for its own tax purposes, it must obtain one from a Mainland entity or under an arrangement agreed in the contract. Discuss this before pricing, because it can affect who contracts with whom.
It can. Staff who negotiate or sign contracts in the Mainland, or who stay beyond the time tests in the double taxation arrangement for services, can create a permanent establishment and expose part of the profits to Mainland tax. Keep a day count per person and project, and take advice before long assignments begin.
Arbitral awards made in Hong Kong are enforceable in the Mainland under a long-standing arrangement. Since January 2024 a wider framework lets more Hong Kong civil and commercial judgments be recognised there, subject to conditions. Which route suits you depends on the contract and where the counterparty has assets, so draft the dispute clause with a lawyer.
A CRM for contacts, leads and deals. Trade documents and CEPA origin rules are handled with the authorities.
