Starting a business overseas can be a great way to reach new customers, invest in another market or build a more international lifestyle. However, company formation abroad often involves more paperwork than UK founders expect.
Foreign company registries, banks, lawyers, notaries and tax authorities may ask for documents proving your identity, address, business background, company ownership and source of funds. Some UK documents may also need translation, certification or official preparation before they are accepted.
Passport and identity documents
Your passport will usually be the main identity document for company formation, banking and tax registration.
You may need:
- passport copy
- certified passport copy
- proof of address
- driving licence
- tax identification details
- passport-style photograph
- residence permit, if applicable
If you are applying remotely, certified copies may be requested instead of ordinary scans.
Proof of address
Foreign registries and banks often ask founders, directors and shareholders for proof of residential address.
Common UK documents include:
- utility bill
- council tax bill
- bank statement
- mortgage statement
- tenancy agreement
- HMRC letter
- driving licence
Proof of address usually needs to be recent and clearly show your full name and address.
UK company documents
If you already own a UK company, you may be asked for company records.
This may include:
- certificate of incorporation
- Companies House company profile
- articles of association
- confirmation statement
- shareholder register
- director details
- company accounts
- certificate of good standing
- board resolution
These documents help foreign authorities understand the existing business structure.
Source of funds
Banks and company formation agents may ask where the money for the new business is coming from.
Source of funds documents may include:
- bank statements
- savings statements
- payslips
- dividend records
- business sale documents
- investment statements
- loan agreement
- accountant letter
- company accounts
This is especially common when opening a business bank account or investing a large amount.
Business plan and activity evidence
Some banks and authorities may ask what the company will do and how it will operate.
You may need:
- business plan
- website
- client contracts
- supplier agreements
- invoices
- professional licence
- projected turnover
- proof of industry experience
Business accounts can be delayed if the activity is unclear or too vague.
Power of attorney
If a lawyer, accountant or local agent will act for you overseas, you may need a power of attorney.
It may allow them to:
- submit company documents
- sign incorporation papers
- open a bank account
- register for tax
- attend notary appointments
- collect official documents
A power of attorney for overseas use may need translation, certification or official preparation.
Tax documents
Tax paperwork may be needed for both personal and company checks.
You may be asked for:
- HMRC correspondence
- tax residency certificate
- self assessment documents
- company tax records
- VAT registration, if applicable
- accountant letter
- national insurance number confirmation
If you will operate across more than one country, professional tax advice is sensible.
Translation and official copies
If the destination country does not accept English documents, translations may be needed. This can apply to company records, bank statements, tax documents, powers of attorney and proof of address.
Some organisations may also ask for certified copies or officially prepared documents. Always check the exact format before sending anything.
Common mistakes to avoid
Business setup abroad can be delayed by small document issues.
Common problems include:
- passport copy is not certified
- proof of address is too old
- company documents are incomplete
- source of funds is unclear
- business activity is not explained
- board resolution is missing
- translations are requested late
- names differ across documents
- power of attorney is not accepted
Final thoughts
Starting a business overseas as a UK founder usually requires documents for identity, address, company ownership, tax, banking and source of funds. If you already run a UK company, foreign registries and banks may also ask for Companies House documents and company accounts.
Requirements vary by country and business type, so ask your lawyer, bank or formation agent for a written checklist before preparing documents. Getting the paperwork right early can help avoid delays with incorporation and banking.