Last updated: 19 October 2026
Are there tax implications of business transactions through your personal bank account?
For a sole trader, using a personal account for business isn’t illegal and doesn’t create extra tax, but it makes records harder to keep and can raise questions if HMRC opens an enquiry. All business income must be reported, whichever account it goes into. For a limited company, it’s different: company money must go into the company’s account. Paying company income into your personal account, or paying personal costs from company funds, creates a director’s loan, with possible tax charges.
Sole trader versus company
| Issue | Sole trader using personal account | Company money in director’s account |
| Legal | Allowed | Company and personal funds must be separate |
| Tax | No extra tax if all income reported | Director’s loan, possible s455 and benefit in kind |
| Bank terms | Some banks prohibit business use of personal accounts | Company needs its own account |
| HMRC enquiry risk | Harder to show which deposits are business | High risk of misreporting |
What HMRC sees
HMRC receives data from banks, card payment providers and online platforms. If deposits into your personal account don’t match the income you’ve reported, HMRC may send a nudge letter or open an enquiry. Gifts, transfers between your own accounts and loans from family can look like income unless you can explain them.
Example
Jake is a self-employed electrician and uses his personal current account for everything. In 2026, HMRC’s data shows £62,000 of card payments and transfers into the account, but he reported turnover of £48,000. The difference is a £10,000 loan from his father and £4,000 moved from his savings. Because he can show the loan agreement and statements, the enquiry is closed. Had he used a separate account, the question wouldn’t have arisen.
Benefits of a separate business account
- Easier bookkeeping and Making Tax Digital compliance
- Clear evidence of business income and expenses
- Simpler for your accountant
- Required by many banks’ terms for business use
Making Tax Digital
From April 2026, sole traders with qualifying income over £50,000 must keep digital records and send quarterly updates. A dedicated account linked to MTD software makes this much easier.
Company directors
If you pay company takings into your own account, the company must still record them as income and corporation tax applies. The amount becomes a loan to you. If it isn’t repaid within 9 months of the year end, s455 tax of 35.75% applies (33.75% for loans made before 6 April 2026).
Common mistakes
- Mixing personal and business transactions without records
- Not being able to explain non-business deposits
- Directors banking company income personally
- Missing income paid into a personal account
Records to keep
Keep bank statements, invoices issued, receipts for expenses and evidence for any non-business deposits, such as loan agreements or transfer records between your own accounts. Keep them for at least 5 years after the 31 January filing deadline.
Frequently asked questions
Do I need a business bank account as a sole trader?
Not by law, but it’s strongly recommended.
Can HMRC see my personal account?
It can request information during an enquiry.
Are transfers from my partner taxable?
No, if they’re gifts or shared household money.
What about cash payments?
They must be recorded and reported too.
Related: HMRC questions about money overseas, moving company money to your own account and reclaiming s455.
Talk to Accotax
Want this handled for you? Our team at Accotax can help with bookkeeping and HMRC enquiries. See our sole trader accountants service, or contact us for a free, no-obligation quote.
This page is general guidance based on HMRC rules for the 2026/27 tax year, checked against gov.uk on 14 October 2026. It is not personal advice, so speak to an accountant about your own situation.
