Apostille and Document Legalisation: What UK Businesses Need to Know

What does document legalisation mean?

A UK business may be asked to provide official documents abroad when opening a bank account, establishing a subsidiary, entering a contract, taking part in a tender or proving a company’s status. The receiving authority may ask for the document to be legalised. Legalisation is an official check of the signature, stamp or seal on a document; it is not a certification that the document’s statements are true or that the underlying transaction is valid.

For eligible UK documents, the Foreign, Commonwealth & Development Office (FCDO) Legalisation Office can attach an apostille. The FCDO explains that it checks whether signatures, stamps or seals match its records before issuing the certificate. This is why document type, format and the identity of the person who signed or certified it matter. Read the current GOV.UK overview of getting a document legalised before preparing an application.

What an apostille does—and does not do

The apostille is a certificate attached to a public document, or to a signature or certification on it. Under the Hague Apostille Convention, participating countries accept an apostille in place of the traditional chain of diplomatic or consular legalisation for documents within the Convention’s scope. The Convention does not make the document’s contents correct, translate it, or decide whether the recipient should accept it for a particular business purpose. Its official explanation is available from the Hague Conference on Private International Law (HCCH).

Requirements are set by the organisation receiving the document as well as by the legalisation process. A bank, registry, court or prospective business partner may ask for a particular version, issue date, notarised copy, translation or additional verification. Requirements can differ even within the same country, so do not assume an apostille alone will meet every request.

Check the destination requirements first

Ask the recipient precise questions

Before ordering or posting documents, ask the overseas recipient to confirm in writing:

• which documents are required and whether originals, certified copies or electronic documents are acceptable;
• whether the document must be signed, certified or notarised in a specified way before an apostille can be issued;
• whether an apostille is sufficient or whether consular legalisation is also required;
• whether a translation is needed, who may prepare it and whether the translation itself needs certification or legalisation; and
• whether there are requirements for the document’s age, language, format, binding or delivery.

Use the recipient’s exact instructions rather than relying on a general description of local practice. If instructions are unclear, clarify them before arranging certification: an apostille attached to the wrong document or form may not solve the problem.

Check whether the Convention applies

Where both the country of origin and the destination are within the Convention’s operation for the relevant relationship, an apostille will generally replace the further diplomatic legalisation step. If the destination is not covered, or if the receiving authority has a special procedure, it may require additional authentication by its embassy or consulate after UK legalisation. Check the destination country and the exact route with the recipient and its competent authorities. The FCDO’s application guidance sets out the UK process and document requirements; it does not replace the destination authority’s instructions.

Prepare UK company documents carefully

Companies commonly need documents such as a certificate of incorporation, constitutional documents, a Companies House filing, a board resolution, a power of attorney or a certificate relating to directors or shareholders. Not every document can be submitted in every format. Some records are issued by a public authority; other company documents may need an appropriately qualified professional to certify or notarise the signature before legalisation. The FCDO must be able to verify the relevant signature, stamp or seal against its records.

Do not alter, detach pages from or add a binding to a document after it has been certified or legalised. Check spelling of company names, registration numbers, signatory names and dates across the set. If the overseas recipient has asked for a certified copy, establish who is authorised to certify it and whether the certification wording must be specific. A plain printout or scan should not be assumed to be equivalent to an original or properly certified document.

Practical steps for an application

1. Agree the destination checklist. Obtain the recipient’s requirements, including any consular step and translation instructions.
2. Identify the documents and format. Check the FCDO’s current rules for each item and whether certification or notarisation is needed first.
3. Arrange any prior certification. Use a suitable professional where the document or recipient requires it, and confirm the certification will be recognisable for legalisation.
4. Apply through the official service. Follow the current instructions on GOV.UK’s FCDO legalisation application page, including its current submission and return arrangements.
5. Complete any destination-country step. Once the apostille is issued, check whether the recipient also requires consular legalisation, a translation or another formality.
6. Keep a secure record. Retain copies of the final document set and record where originals are sent, while following your company’s confidentiality and data-handling procedures.

Do not plan around an assumed processing time or price: check the official service immediately before applying, because its current arrangements may change. If a deadline is important, allow for the full chain requested by the recipient, including any international delivery and consular steps.

When professional support can help

Coordinating company records, prior certification and destination instructions can be time-consuming, particularly where several documents or countries are involved. A practical checklist helps prevent avoidable resubmission, but it cannot guarantee acceptance by an overseas authority. Confirm legal, translation and country-specific questions with the relevant professionals or authorities.

Clear Corporate Services does not provide regulated legal, tax, insolvency or accounting advice. For assistance coordinating eligible UK company documents for this process, see our apostille and document legalisation service. You may also find our guidance on share transfers and allotments useful when preparing records that describe a company’s ownership.