How to Open a Business Bank Account UK: Step-by-Step Guide

Key facts: opening a business bank account

• Digital-first banks activate in minutes to hours - Starling and Monzo are the fastest FSCS-protected options
• CMA9 banks take 3 to 7 business days but offer lending facilities, branch access, and relationship managers
• Limited companies need a Companies House registration number - incorporation costs £50 and takes 24 hours
• Sole traders need an HMRC UTR - issued on registering for Self Assessment, arrives within 10 working days
• No UK provider requires a minimum trading period - accounts can be opened before the first transaction

How to open a business bank account in the UK

Opening a business bank account requires choosing a provider, completing an application, providing identity documentation, and waiting for activation. Digital-first banks have streamlined this process substantially since 2018, with some accounts now operational within minutes of completing in-app identity verification.

The specific steps depend on business structure. Limited companies need to provide Companies House registration details. Sole traders need their HMRC Unique Taxpayer Reference. In all cases the opening process includes anti-money laundering checks and identity verification under FCA Customer Due Diligence requirements.

All nine CMA9 banks and all major digital challengers offer fully online account opening as at 09 Jun 2026. No business is required to visit a branch to open a standard business current account.

Step-by-step: how to open a business bank account online

1. Choose a provider: Compare monthly fees, free periods, electronic payment charges, FSCS status, and accounting software integrations. Ensure the chosen provider accepts your business structure and trading history.
2. Gather required documents: Photo ID for all directors, proof of address dated within 3 months for all directors, Companies House registration number for limited companies, HMRC UTR for sole traders, and business details including description and estimated annual turnover.
3. Complete the online application: Most providers have a web or app-based application. For limited companies, enter the Companies House registration number - most digital providers pull company details automatically from the Companies House API.
4. Complete identity verification: Digital providers use in-app or browser-based ID verification: photograph the ID document, then take a facial selfie for biometric matching. CMA9 banks may require document uploads or in-branch verification for certain applicants.
5. Await the decision: Digital providers typically return a decision within minutes. CMA9 banks take 3 to 7 business days. If additional information is required, the bank contacts the applicant by email or phone.
6. Activate the account: Once approved, account details are available in the app or by post. The account is immediately operational for payments. A physical debit card arrives within 3 to 5 working days.
7. Connect accounting software: Connect the bank feed in accounting software settings to enable automatic transaction synchronisation via open banking.

Documents needed to open a business bank account

For all applicants: Valid photo ID (UK or foreign passport, or UK photo driving licence); proof of address (bank statement, utility bill, or HMRC correspondence, dated within 3 months); National Insurance number; and business name, description, and estimated annual turnover.

For limited companies additionally: Companies House registration number; certificate of incorporation; the above ID and address documents for every director; persons with significant control information for any individual holding 25 percent or more of shares; and registered office address as filed at Companies House.

For sole traders additionally: HMRC Unique Taxpayer Reference (UTR) and evidence of self-employment - HMRC Self Assessment registration confirmation, or a recent invoice or client contract.

How to open a business bank account for a limited company

A limited company must be registered at Companies House before a business account can be opened. Companies House registration takes 24 hours online and costs £50 as at 09 Jun 2026. Once registered, the certificate of incorporation and 8-digit company registration number are issued immediately and can be used to apply for a business account.

Most digital-first banks pull company data directly from the Companies House API using the registration number, eliminating the need to manually enter director information. New limited companies with no trading history are accepted by all major digital-first providers and by CMA9 banks including NatWest, which explicitly welcomes startup applications. There is no minimum trading period requirement for a standard business current account at any major UK provider.

How to open a business bank account for a sole trader

Sole traders do not need to register at Companies House. The primary identifier is the HMRC Unique Taxpayer Reference (UTR), issued when registering for Self Assessment. If not yet registered, sole traders can do so online at gov.uk and receive their UTR within 10 working days.

Sole trader accounts can typically be opened faster than limited company accounts because there is no Companies House verification step. Starling, Monzo, and Tide activate sole trader accounts within minutes for most applicants. CMA9 banks take 3 to 5 business days for sole trader applications. There is no minimum trading period requirement - the account can be opened before the first client or sale.

Open business bank account online: comparison

Source: CMA Open Data API and provider published rates, 09 Jun 2026. Opening times are indicative for straightforward applications. Complex structures may take longer.

Common reasons for delay or rejection

Applications can be delayed or rejected for the following reasons: identity verification failure (blurred ID photos, expired documents, or facial matching failures - retake in good lighting with the full document visible); Companies House discrepancy (ensure Companies House records are current before applying); high-risk business sector (certain sectors are refused by some providers for AML compliance - check the excluded sectors list); adverse credit at CMA9 banks only (digital-first providers do not credit score standard applications); and complex ownership structures with multiple directors or overseas shareholders (require manual review, extending the process).

Business bank account for a partnership

Partnerships and LLPs can open business accounts in the partnership name. LLPs are registered at Companies House and most digital providers look up their details automatically. General partnerships have no Companies House registration and must provide a signed partnership agreement, which can extend the process. For LLPs with multiple partners, most digital providers support multi-user access with individual payment permissions per partner.

Choosing the right account for your stage of business

At formation and early trading, the priority is typically speed of opening, zero or low fees, and open banking connectivity. Starling, Monzo, Mettle, and Nationwide serve this stage well. As the business grows and cash flow becomes more complex, overdraft facilities, invoice finance, and a relationship manager become more relevant - NatWest, Lloyds, HSBC, and Barclays become stronger options at this stage. For businesses above £1 million annual turnover, dedicated commercial banking from CMA9 banks provides structured lending and treasury management that retail business accounts do not offer. CASS makes it straightforward to move between providers as needs change.

Open banking: connecting your new account to accounting software

Once the new business account is open, connecting it to accounting software via open banking is one of the first practical steps. Open banking connections use the CMA Open Banking framework to provide read-only access to transaction data from the bank account to authorised accounting software. The connection is authorised by the account holder in the bank's app or online banking portal and can be revoked at any time.

The setup process is initiated in the accounting software, not the bank. In Xero, navigate to Accounting > Bank Accounts > Add Bank Account. In QuickBooks, go to Banking > Connect Account. In FreeAgent, go to Banking > Add Bank Account. Select the bank from the list, authorise the connection in the bank's authentication flow, and transactions begin importing automatically. Most connections import transactions in real time or with a delay of up to 24 hours depending on the bank and the accounting software provider.

For businesses using Making Tax Digital for VAT, the open banking connection provides the digital transaction records that MTD requires. For sole traders preparing for MTD ITSA from April 2026, the same connection enables the quarterly digital reporting that the regime requires.

Business bank account security: what to know

All UK FCA-authorised banks are required to implement Strong Customer Authentication (SCA) for online payments and account access under the Payment Services Regulations 2017. SCA requires at least two of three authentication factors: something you know (password or PIN), something you have (phone or card), and something you are (biometric). This applies to both personal and business accounts.

Business accounts typically have additional security features for high-value or international payments. CMA9 banks may require telephone confirmation or token-based authentication for payments above defined thresholds. Digital-first banks use in-app push notifications for payment authorisation.

For businesses with multiple directors needing account access, most CMA9 banks and digital challengers support multi-user access with individual login credentials per user. Dual authorisation - requiring two users to approve payments above a threshold - is available at most CMA9 banks and at Starling Business. This reduces the risk of fraudulent payments in businesses where financial controls require two signatories for significant outflows.

Frequently asked questions

What do I need to open a business bank account?

Photo ID for all directors or account holders (passport or driving licence), proof of address dated within 3 months, Companies House registration number for limited companies, HMRC UTR for sole traders, and business details including description and estimated annual turnover.

How long does it take to open a business bank account?

Digital-first banks activate accounts within minutes to hours for straightforward applications. CMA9 high-street banks take 3 to 7 business days. The application itself takes 10 to 30 minutes to complete online regardless of provider.

Can I open a business bank account before my company is registered?

No. Limited companies must be registered at Companies House before a business account can be opened in the company name. Companies House online registration takes 24 hours and costs £50. Sole traders do not need to register a company - they can open a sole trader account using personal details and their UTR.

Can I open a business account with bad credit?

Yes, at providers that do not conduct credit checks. Starling Business and Monzo Business assess applications on identity verification and AML compliance only. Directors with CCJs or adverse credit can typically open accounts at these providers. CMA9 banks conduct soft credit checks and may decline applicants with significant adverse credit.

Do I need to visit a branch to open a business bank account?

No. All major UK business bank account providers support fully online account opening. CMA9 banks retain branch-based opening as an option but do not require it for standard applications.

What is the cheapest business bank account to open?

The cheapest accounts with no monthly fee and no electronic payment charges are Starling Business, Nationwide FlexBusiness, and Mettle (NatWest). All three are permanently free, operated by FCA-authorised banks with FSCS protection, and support open banking to major accounting software. Fee data sourced from the CMA Open Data API as at 09 Jun 2026.