What documents do I need to open a business bank account in the UK?

Opening a business bank account in the UK is an important part of any business, ensuring that personal and business finances are kept separate and managed accordingly. Although the specific documents needed may slightly vary from one bank to another, generally, the following will be required:

1. Proof of Identity: Personal identification for all major officers of the company, such as directors and shareholders holding significant control, usually exceeding 25% of the issue. Acceptable forms of ID usually include a passport, driving license, or other government-issued photo ID.
2. Proof of Address: Utility bills, council tax bills, or bank statements are the most common documents that prove the personal addresses of the company's principal officers and sometimes the business itself if applicable.
3. Company Information: Full company name, address, and contact details. If the company is already registered, the company registration number is provided by Companies House.
4. Articles of Association/Memorandum of Association: These outline a company's constitution and the rules under which a company will operate, given when the company registers with Companies House.
5. Certificate of Incorporation: This proves the legal existence of your company. It is awarded by Companies House once your application to incorporate has been successful.
6. Details of the Directors and Shareholders: Including full names and addresses, each with the percentage of shares if applicable.
7. Business Plan: Some banks will require a business plan that should outline the aims and objectives of your business, the expected cash flow, and the business strategy. This would help the bank to understand what your business is all about and thereby your financial planning.
8. Proof of Trading Address: This may be a lease agreement or evidence of a utility bill under the business name, confirming the operating address of the business.
9. HMRC Documents: Proof that your business is registered with HM Revenue and Customs (HMRC), particularly if you are VAT registered.

The process of the mentioned documents in advance can help fast-track this and minimize potential delays. This may also be good to check with a particular bank since sometimes additional requirements might be asked, or some minor changes might be necessary. This could also be advised by financial advisers or maybe from a visit to any branch for specific personal advice according to your business needs.