Founders forming a company abroad are usually offered a choice between a standard document set and an apostilled one, at a meaningful difference in price, before they have any way of knowing which they need. The decision is not difficult once you know what the certification is for — and getting it wrong in either direction is expensive.

What an apostille actually certifies

An apostille is a certificate attached to a public document by a designated authority in the country where it was issued, confirming the authenticity of the signature on it, the capacity in which the signatory acted, and the identity of any seal or stamp it bears.

Note what that list does not include. An apostille says nothing whatever about the contents of the document. It does not confirm that the company is in good standing, that the statements in the document are true, or that the document is currently accurate. It confirms that the official who signed it was who they appear to be. That is the entire function, and misunderstanding it leads people to treat an apostilled certificate as carrying an authority it does not have.

The apostille exists because of the 1961 Hague Convention, which replaced a slow chain of consular legalisation with a single certificate that every other party state agrees to accept. Well over a hundred jurisdictions participate, including Hong Kong, where the competent authority is the High Court.

When you need one

The test is simple: an apostille is needed when a document issued in one country must be officially accepted by an authority or institution in another. Common triggers:

  • Opening a bank account outside the country of incorporation. The most frequent reason by a wide margin. A bank in another country cannot verify a foreign registry's seal and will require certification instead. Many will additionally insist the documents be recently issued.
  • Registering a branch, subsidiary or representative office abroad. Foreign company registries almost always require apostilled constitutional documents from the parent.
  • Holding shares in a foreign company. Where your company is to be recorded as a shareholder, the foreign registry or notary will want certified evidence that it exists and who may act for it.
  • Notarial acts abroad. Executing a deed, granting a power of attorney or completing a property transaction in another country.
  • Court and arbitration proceedings. Foreign documents entered in evidence generally require certification.
  • Tenders and licence applications. Public procurement and regulatory applications frequently specify apostilled corporate documents in the submission requirements.
  • Tax residency claims. Where treaty relief is claimed, the foreign tax authority may require certification of the supporting documents.

When you do not

If the company will operate, bank and contract entirely within its country of incorporation, the standard document set is sufficient and an apostille is money spent on nothing. A Hong Kong company banking in Hong Kong and trading with Hong Kong counterparties has no use for one.

Ordinary commercial counterparties — customers, suppliers, landlords — very rarely ask. They want to see the certificate of incorporation and the business registration certificate, not a certification of the registrar's signature.

Which documents

For a Hong Kong company, the set usually requested is:

  • Certificate of Incorporation
  • Business Registration Certificate
  • Articles of Association
  • The incorporation form recording the first directors, secretary and shareholders
  • A certificate of incumbency, where current officers and shareholders must be evidenced
  • A board resolution authorising whatever the recipient is being asked to do

Not all of these are public documents in the form the Hague Convention contemplates. A board resolution is a private document, and a certificate of incumbency is issued by the company secretary rather than by the state. Such documents are first certified by a notary public; the apostille then authenticates the notary's signature rather than the document itself. Anyone quoting for the work should be clear about which of your documents need the notarial step, because it affects both cost and time.

The two situations where an apostille is the wrong instrument

The receiving country is not a party to the Convention

A shrinking group, but not empty. For these, the older route applies: certification by a notary, then by the relevant government department, then legalisation by the embassy or consulate of the destination country. It is slower and more expensive, and it must be done in the right order.

Documents going from Hong Kong to mainland China

This one catches people out repeatedly. Hong Kong documents intended for use in mainland China are not apostilled. They are attested by a China Appointed Attesting Officer — a Hong Kong solicitor specifically appointed for the purpose — and the attestation is then transferred through the designated channel. An apostilled Hong Kong document presented to a mainland authority will be rejected, and the cost of obtaining it is not recoverable.

Practical points that save time

  • Ask the recipient first. Before ordering anything, ask the bank, registry or counterparty exactly which documents they need, in what form, and how recently issued. It is a five-minute question that routinely saves a fortnight.
  • Order the set together. Certifying six documents at once costs materially less in time and handling than certifying them one at a time over three months.
  • Watch the freshness requirement. Many institutions will not accept documents issued more than three or six months previously. An apostilled set obtained speculatively at incorporation may be stale by the time you actually need it — which is an argument for ordering when the need is identified, not before.
  • Translation is a separate step. Where the receiving country requires documents in its own language, a certified translation is needed as well, and in some countries the translation itself must be certified locally.

The decision, in one line

If any authority outside the country of incorporation will have to accept these documents — a bank, a registry, a court, a regulator — order the apostilled set. If everything the company does will happen inside one jurisdiction, do not. If you are not sure yet, take the standard set at incorporation and add certification when a specific requirement appears, since freshness rules mean you may well have to do it again anyway.

General information only. Requirements differ by receiving country and by receiving institution, and the treatment of documents for use in mainland China is a specific regime of its own. Confirm what the recipient will accept before paying for certification.

Our Hong Kong formation packages are available with standard or apostilled document sets. See Hong Kong packages, or tell us where the documents need to go.