Tax Planning for High-Earning Company Directors
There is no UK law that says, in so many words, that your limited company must have a business bank account. That surprises people. Now try running a company without one.
Your clients' payments will land in the wrong place. Your accountant will spend hours working out which transactions were yours and which were the company's. A lender will ask for business bank statements you can't provide. And at the end of the year, a pile of mixed-up payments can turn into a tax charge of 35.75% on money you took out without realising it.
I've helped directors across Tunbridge Wells, Tonbridge, Sevenoaks and the wider South East with exactly this problem more times than I'd like to remember. The answer to the question in the title is a technical "not strictly" and a practical "yes, absolutely". This guide explains why, what the law actually says, and how to keep your business and personal money apart without making your life harder.
Let's deal with the technical point first. No statute says a limited company must hold an account labelled "business bank account". If you read the Companies Act 2006 looking for that sentence, you won't find it.
But that isn't the end of the story. Several rules together make a separate account close to unavoidable. The company is a separate legal person. The law requires proper accounting records. Banks restrict how personal accounts can be used. And HMRC expects clean records. Taken together, a dedicated account is the only sensible way to meet all of them.
A limited company owns its own money, signs its own contracts and owes its own debts. You may own all the shares and be the only director, but the bank balance belongs to the company, not to you. That separation is the entire point of incorporating, and it is what gives you limited liability.
When you pay company money into a personal account, or personal money into the company, you blur that line. It stops being a technicality. It affects how the money is taxed, what you can take out, and how safe your personal assets are if the business runs into trouble.
Section 386 of the Companies Act 2006 requires every company to keep adequate accounting records. These must be enough to show and explain the company's transactions, to disclose its financial position with reasonable accuracy at any time, and to let the directors check that the accounts comply with the law. The Act specifically requires entries from day to day of all sums of money received and expended by the company.
Think about what that means in practice. If the company's money moves through a personal account, those day-to-day entries are tangled up with your shopping, your mortgage and your holidays. Separating them afterwards is possible, but it is slow, and it is easy to get wrong.
Company law sets a minimum period for keeping these records, three years for a private company. HMRC, however, expects six years, so I always advise clients to work to six.
Most banks' terms and conditions for personal accounts don't allow you to use them for trading. Using a personal account for company income can lead to the bank restricting the account, declining transactions or asking you to move to a business product. A company also can't normally pay a cheque made out to its name into a personal account.
I once spoke to a Tonbridge joiner who had run his company through his personal account for eighteen months. His bank closed the account with two weeks' notice, in the middle of a large job, and customer payments bounced. It took him a month to put things right.
HMRC doesn't dictate which bank you use. It does expect you to keep records that support your Corporation Tax return, your VAT returns if you are registered, and your payroll filings. In an enquiry, the first thing an inspector usually asks for is the company's bank statements. If those statements contain personal transactions, you'll need to explain each one.
HMRC also pays refunds, such as VAT repayments and Corporation Tax refunds, to the company. A separate account makes that straightforward.
In most cases, mixing company and personal money is a bookkeeping and tax problem, not a criminal one. But it can become more serious. If a company becomes insolvent, a liquidator will examine its bank account closely. Payments to you that can't be explained as salary, a lawful dividend, expenses or a properly recorded loan may be challenged. Dividends paid without enough profit behind them can be recovered. And in rare cases, where a company has been treated as little more than an extension of its owner, the protection of limited liability can be called into question.
None of that is likely for a well-run company. All of it becomes more likely when the lines are blurred.
Your invoices carry your company's name. Most clients, particularly larger ones, expect to pay into an account in that name, and their finance teams may refuse to pay anything else. If a client has to pay "Mr J Smith" instead of "Smith Consulting Ltd", the invoice can look wrong, the payment can be delayed, and the client may wonder who they're really dealing with.
A contractor from Tunbridge Wells told me his new client's accounts department simply refused to release payment to a personal account. He lost three weeks, and the client's confidence, before he got a business account open.
Banks, landlords and asset finance companies like to see business bank statements. They want to see regular income, sensible outgoings and a balance that doesn't hit zero every month. A company with a clear trading history looks organised.
A marketing consultant I worked with in Sevenoaks applied for a mortgage with a broker who wanted to see his company's bank statements. They showed a mix of business income, family shopping and holiday bookings, and the broker had to ask for lengthy explanations. The application got through in the end, but it was slower, and more stressful, than it needed to be.
A business account tells you at a glance how much cash the company really has. A mixed account tells you nothing. When you can see the real balance, you can plan for VAT, PAYE, Corporation Tax and dividends without guessing.
Many directors find it useful to open a second savings account, or use "pots" within the business account, for tax. Set aside a portion of each payment for VAT and Corporation Tax as it arrives, and the bills stop being a surprise.
If you employ staff, the company pays them, along with PAYE and pension contributions, from its own account. If you're VAT-registered, you'll need to show that each purchase you reclaim VAT on was a business purchase. A clean account makes that straightforward. A mixed one invites questions.
This is the least glamorous reason and perhaps the most important. A separate account is evidence that you've run the company as a genuine, separate business. If anything goes wrong, that evidence helps. It shows you took your duties as a director seriously, and it protects your personal assets better than any amount of explanation after the event.
If there is more than one shareholder or director, a shared company account gives everyone the same view. A partner who suspects that the other is paying for personal items out of the business can see for themselves, and so can you. It is far better to remove the doubt before it becomes a dispute. I've seen family businesses in Kent argue for years over money that was fine, simply because no one could prove it.
When your accountant receives a year of clean business bank statements, the accounts practically write themselves. Every transaction is business. Income is matched to invoices, expenses are matched to receipts, and the remainder is salary, dividends or loan movements. With a mixed account, each personal-looking transaction needs a question, an answer and an entry.
Those questions take time, and time costs money. Directors with clean records generally pay less for their accounts, and receive them sooner.
This is the big one. Any money you take from the company that isn't salary, a dividend or a proper expense claim goes onto your director's loan account. If you pay for a family holiday from the company's account, that's a loan to you. If you pay a business cost from your own account, that's a loan from you.
A separate account makes it easy to track both. Every personal payment stands out. And since an overdrawn balance that isn't repaid within nine months and one day of the year-end triggers a section 455 charge of 35.75% on loans made on or after 6 April 2026, tracking matters. I've covered that in detail in our guide to director's loan accounts.
You can only pay a dividend from profits, and you need to be able to show it. If the company's records are confused by personal items, it can be difficult to work out how much is genuinely available. A clean account gives you a reliable figure, and the confidence to declare dividends properly.
Modern accounting software, such as QuickBooks Online or Xero, can pull transactions directly from your business bank account. Every payment arrives automatically, ready to be matched to an invoice or labelled with a category. It saves hours each month. But it works best when the feed contains only business transactions, because personal items clutter the feed and create work.
Claims for expenses, such as mileage, home working and subscriptions, depend on evidence. A business account makes that evidence easier to find, and easier to link with the receipts. If HMRC raises a query, you can turn to the statement and show exactly what was paid and when.
Finally, clean records give you real information about your business. You can see which months are strongest, which customers pay late and where your money goes. Those insights lead to better pricing, better cash flow and better decisions. They're almost impossible to get from an account that also pays for your weekly shop.
The simplest time to start is the day your company is formed. You'll normally need the certificate of incorporation, proof of identity and address for each director, and details of who owns and controls the company. Banks may also ask about Companies House identity verification. If you're already trading, there is no need to wait. A new account can be opened at any time, and the sooner the better.
Business accounts come in many forms. High street banks offer branch access and relationship managers. Digital banks offer low fees and quick setup. When comparing, consider:
For a retailer or café in Royal Tunbridge Wells that handles cash, branch access may be worth paying for. For a consultant who works entirely online, a digital account may be ideal.
The most effective habit is the dullest. Decide how much you need each month, and pay it by a regular transfer, as salary through payroll and dividends declared and documented. Treat the transfer as your pay. Spend personal money from your personal account, and don't dip into the company account in between.
That one routine removes most of the problem. If money moves from the company to you only by a labelled transfer, there's little room for confusion.
A company debit or credit card should be used for business expenditure alone. Keep your personal cards for your own spending. If you find yourself reaching for the wrong card in a supermarket, that's a sign the habits aren't yet set. Some directors find it helps to use a different colour or keep the company card in a different place.
Occasionally you'll pay for a business cost with your personal card. That's fine. Keep the receipt, and once a month submit a simple expense claim to the company. The company repays you by bank transfer, with a clear reference. That's far better than paying the company back through a personal transfer, or leaving the balance hanging.
Open a separate savings account, or pot, for tax. Whenever a customer pays, move a percentage into it for VAT if you're registered, and for Corporation Tax. When the bills arrive, the money will be there. Without it, too many directors find themselves tempted to spend what isn't really theirs.
Everyone slips once in a while. Perhaps you paid for petrol for a family trip with the company card. Don't ignore it. Make a note, and tell your accountant or record it in your software as a director's loan. Then repay it, either from your own funds or by a proper dividend. The cost of a small slip is tiny if you fix it quickly, and large if you leave it a year.
Set aside half an hour each month to reconcile the bank account. Look for payments that don't belong, label everything and chase missing receipts. It's the single habit I would recommend above all others.
If you've been using one account for both, don't panic. It's common, and it can be fixed. Open a business account, move your company income there from now on, and ask your accountant to review the past period. We can work out what is personal, record it as a director's loan, and agree a plan to clear it, ideally before any section 455 charge applies. The sooner you start, the simpler it is.
Quick answer: The law doesn't name a "business bank account" as mandatory, but a limited company is a separate legal person, must keep accurate day-to-day records of money received and spent, and can rarely operate through a personal account in practice. A separate business account is effectively essential.
What this means for a company director: The company's money isn't yours until you take it out properly, as salary, a dividend, an expense repayment or a recorded loan. A separate account makes that distinction visible. It protects you, simplifies your accounts and keeps you on the right side of HMRC.
Example: A director with a 31 March year-end uses the company account for personal spending between June 2026 and March 2027, and by the year-end has taken out £12,400 more than they put in. That balance is a loan from the company. If it isn't repaid by 1 January 2028, the company pays section 455 tax of £4,433, which is 35.75% of £12,400. The tax is refundable once the loan is repaid, but it ties up cash in the meantime. If the same director had paid themselves a regular salary and dividend, and spent personal money from a personal account, there would have been no loan and no charge.
Common mistakes: Using the business account for personal shopping; paying business costs personally and never claiming them back; accepting client payments into a personal account; failing to reconcile the account monthly; and leaving a mixed-up year for your accountant to untangle.
When should you speak to an accountant? Before you set up the company if you'd like help choosing a structure and a bank. As soon as you notice mixed transactions. Before a mortgage or finance application. And whenever your director's loan account is overdrawn, ideally well before the year-end.
Keeping business and personal money apart sounds simple, and in principle it is. In practice, a bit of structure at the start saves a great deal of time and tax later. At Peter Hodgson & Co, we help company directors across Tunbridge Wells, Tonbridge, Sevenoaks and the wider Kent and South East area set up clear, compliant systems, tidy up existing records and stay on top of their accounts throughout the year.
If you'd like help with this, whether you're setting up a new company or sorting out an old one, we'd be glad to hear from you. You can complete the "Contact Us" form on our website, call us on 01892 515 733, or send us an email at info@peterhodgson.co.uk.
Disclaimer:
The content of this blog is for general informational purposes only and should not be considered professional tax advice. The information is correct at the time of publishing but may change following future UK budget announcements or updates to HMRC guidance. Individual circumstances vary, and tax obligations can differ based on your personal situation. We strongly recommend consulting with us or a qualified tax professional to receive advice tailored to your specific needs.
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