The answer depends on how your business is structured. If you are a sole trader, you can legally use a personal account, though it is rarely a good idea. If you run a limited company, you effectively must keep the company's money separate. Here is the distinction and why it matters in England and Wales.
Sole traders: legally allowed, but not advisable
As a sole trader, you and your business are the same legal person, so there is no legal rule forcing you to have a separate business bank account. You could run everything through a personal account.
In practice, though, mixing personal and business money causes problems:
- Tax and accounting become messy, separating business income and expenses for your Self Assessment is far harder when everything is in one account.
- Many bank terms and conditions actually prohibit using a personal account for business activity, so you risk the account being closed.
- It looks less professional to customers and suppliers.
For these reasons, most sole traders open a dedicated business (or at least a separate) account even though they are not legally required to.
Limited companies: keep the money separate
A limited company is a separate legal entity from its owners. The company's money belongs to the company, not to you personally. That means:
- The company should have its own bank account, in the company's name.
- You should not pay company income into, or run company expenses through, your personal account.
- Money moves between you and the company only through proper routes (salary, dividends, expenses or a director's loan) each with its own tax treatment and record-keeping.
Mixing company and personal funds can blur the separation that limited liability depends on, create tax problems, and make directors' duties and accounts harder to get right.
Why separation helps everyone
- HMRC compliance: clean records, easier returns, fewer errors.
- Credibility: invoices and payments in the business name look professional.
- Clarity: you can actually see how the business is performing.
- Protection: for companies, it reinforces the legal separation between you and the business.
Practical tips
- Sole traders: open a separate account even if not legally required; check your bank's terms before using a personal account for trade.
- Companies: open a company account and route all company money through it; take advice on salary vs dividends vs director's loans.
- Keep records and receipts, and reconcile regularly.
Key takeaways
- Sole traders may legally use a personal account, but separation is strongly advisable (and many bank terms forbid business use of personal accounts).
- Limited companies are separate legal entities, keep company money in a company account.
- Move money between you and a company only via salary, dividends, expenses or a director's loan.
- Separation improves tax compliance, credibility and clarity.
Sources
- The legal distinction between sole traders and limited companies (Companies Act 2006)
- HMRC record-keeping requirements for the self-employed and companies
- Banks' account terms and conditions
--- This article is general information about the law of England & Wales as at 2026, not legal advice. For advice on your circumstances, consult a qualified solicitor or accountant.