Key takeaways
- Sole traders and ordinary partnerships are not legally required to have a business bank account; limited companies are, according to Business.gov.uk.
- HMRC says you might be able to use a personal account for business, and tells you to check with your bank which type of account it allows.
- Some personal account terms forbid business use: Monzo's say its personal current account is for personal use only and must not be used for business purposes.
- Whatever account you use, HMRC expects records of business income and expenses kept for at least 5 years after the 31 January filing deadline.
- MTD for Income Tax applies from 6 April 2026 for sole traders with qualifying income over £50,000, from 6 April 2027 over £30,000 and from 6 April 2028 over £20,000.
- Several business accounts for sole traders, including Starling, charge no monthly fee, so separating your money need not cost anything.
No. Sole traders in the UK are not legally required to have a business bank account, unlike limited companies. But your bank’s terms may not allow business transactions through a personal account, and a separate account makes your records, tax return and Making Tax Digital far simpler. For most sole traders a free business account is worth opening.
Is a business bank account a legal requirement for sole traders?
No. Business.gov.uk says sole traders and normal partnerships are not legally required to have a business bank account, while limited companies must have one. As a sole trader, you and your business are the same legal person, so the money is yours either way.
| Business type | Business account legally required? |
|---|---|
| Sole trader | No |
| Ordinary partnership | No |
| Limited company | Yes |
If you are deciding between structures, see limited company vs sole trader.
Can I use my personal bank account for my business?
Possibly, but check your bank first. HMRC’s record-keeping guidance says you might be able to use a personal or business account, and tells you to check with your bank which type you can use for business transactions.
Many banks do not allow it. Monzo’s personal account terms, for example, say its current account and Pots “are for personal use only and mustn’t be used for business purposes”. Breaking account terms can lead a bank to restrict or close your account.
Using a personal account is more common, and lower risk, if you have a small side income alongside a job and your bank permits it.
What does HMRC expect, whatever account you use?
HMRC expects you to be able to show your business income and expenses, whichever account they pass through. You must keep records of:
- sales and other business income
- business expenses, with receipts
- your personal income, for your tax return
- VAT records, if you are VAT-registered
- PAYE records, if you employ anyone
GOV.UK says you must keep records for at least 5 years after the 31 January submission deadline. Records for 2025/26, due by 31 January 2027, should be kept until at least January 2032.
If personal and business items share one account, you must pick out the business ones yourself. If HMRC checks your return, it may ask to see the whole account.
Why most sole traders open a separate account
A separate account turns your bank statement into a business record. Business.gov.uk lists the main benefits:
- business transactions are easier to find and sort
- you can track cash flow more easily
- records for accounting and tax are simpler
- you build a business credit history for loans or credit cards
- you can take card payments and larger transactions
It also helps with Making Tax Digital for Income Tax. HMRC’s MTD guidance does not require a business account, but you must keep digital records and send quarterly updates through software. A bank feed holding only business items needs far less sorting.
| Qualifying income | MTD for Income Tax starts |
|---|---|
| Over £50,000 (2024/25) | 6 April 2026 |
| Over £30,000 (2025/26) | 6 April 2027 |
| Over £20,000 (2026/27) | 6 April 2028 |
See MTD for Income Tax for sole traders for what quarterly updates involve.
Does a business account cost money?
Not necessarily. Starling’s sole trader account has no monthly fee, though cash deposits cost the higher of £3 or 0.7%. Starling also says you can apply before you have a UTR. Other no-fee options are compared in best business bank accounts for sole traders and free business bank accounts.
Business account fees are an allowable expense against your profits.
Which applies to you?
- If your bank’s personal account terms ban business use, open a business account before you start trading.
- If you have a small side income and your bank allows it, a separate personal account used only for the business can work.
- If you are or will be in MTD for Income Tax, a dedicated business account makes quarterly updates simpler.
- If you take card payments or bank a lot of cash, a business account keeps those takings apart; see card machines for small businesses.
- If you trade through a limited company, you must have a business account in the company’s name.
How to separate your business money
- Check your current bank’s terms on business use.
- Open a business account, or a second account your bank allows for business.
- Give customers the new account details on every invoice.
- Pay business costs only from that account.
- Pay yourself by transfer to your personal account; see sole trader drawings.
- Connect the account to your bookkeeping software.
Frequently asked questions
Is it illegal for a sole trader to use a personal bank account?
No. There is no legal requirement for sole traders to have a business account, but your bank’s terms may forbid business use of a personal account.
Does HMRC require sole traders to have a separate bank account?
No. HMRC says you might be able to use a personal or business account, and expects you to keep records of business income and expenses either way.
Do I need a business bank account for Making Tax Digital?
No. MTD for Income Tax requires digital records and quarterly updates, not a business account, but a separate account makes the records easier to keep.
Can I open a business bank account before I get a UTR?
Often yes. Starling says you can apply for its sole trader account without a UTR; other banks set their own rules.
Do partnerships need a business bank account?
Ordinary partnerships are not legally required to have one, according to Business.gov.uk, though one is usually sensible.
Sources
Rates, thresholds and rules in this guide were checked against HMRC and GOV.UK guidance on 6 November 2026. Tax rules change, so check the current position on GOV.UK or with a qualified adviser before acting. This guide is general information, not personal advice.
- Getting a business bank account (Business.gov.uk)
- Business records if you're self-employed: what records to keep (GOV.UK)
- Business records if you're self-employed: how long to keep your records (GOV.UK)
- Find out if and when you need to use Making Tax Digital for Income Tax (HMRC)
- Personal account terms and conditions (Monzo)
- Sole trader business account (Starling Bank)