Overdrawn and Overlooked: A Director's Loan Account Health Check for UK Companies

Few items in a small company's accounts attract less attention than the director's loan account. It sits in the balance sheet, moves up and down with modest drama, and is generally treated as an accounting convenience rather than a taxable event. That is precisely why it drifts.

A director's loan account is simply the running record of what the company owes the director and what the director owes the company. Salary, expenses paid personally and dividends credited sit on one side; personal spending from the company account, drawings and amounts owed back sit on the other. When the account is in credit, the company owes the director. When it is overdrawn, the director owes the company — and at that point, tax law takes an interest.

How the account drifts out of shape

The causes are rarely exotic. In most small companies the sequence looks something like this.

A director pays a personal bill from the company account and intends to sort it out at the year end. A dividend is declared at an amount that suits the director's cash needs rather than the company's distributable reserves. A legitimate business expense is reimbursed without a receipt, so the bookkeeper credits the director's loan account instead of the expense ledger. A round-sum transfer is described as a salary advance but never runs through payroll.

The common thread is timing. Each individual entry looks trivial. Together, they can leave an overdrawn balance standing at the accounting reference date, which is the moment that matters.

Two separate questions, often confused

When a director's loan account is overdrawn, two distinct rule sets apply, and they are frequently conflated.

The first is Corporation Tax. An overdrawn balance at the end of an accounting period triggers a charge under section 455 of the Corporation Tax Act 2010, at a rate of 33.75% of the outstanding amount. It falls due nine months and one day after the period end, alongside the company's normal Corporation Tax. It is not a permanent tax: if the loan is repaid, released or written off, the company can claim relief, usually by amending a return. But it is a cash-flow event, and for a company with a tight year end it can arrive at the worst possible moment.

The second is the benefit-in-kind regime. A loan to a director on non-commercial terms is a taxable benefit if the aggregate of such loans exceeds £10,000 in the tax year. The benefit is calculated by reference to the official rate of interest set by HMRC, it must be reported on form P11D by 6 July following the tax year, and it attracts Class 1A National Insurance. Where interest is actually charged at or above the official rate, the benefit falls away — but the company must then account for the interest income.

A balance can therefore be small enough to avoid a benefit charge and still large enough to trigger a section 455 liability. Or it can be small enough to avoid both and still be a problem, because an overdrawn account with no paperwork invites awkward questions.

The 30-day trap

A familiar year-end ritual is to repay the loan in March and re-borrow in April. The rule that catches this is straightforward: where a director repays a loan and takes out a further loan of the same or greater amount within 30 days, the repayment is set against the earlier loan rather than the new one. The practical consequence is that the original overdrawn balance is treated as remaining outstanding, and the section 455 charge stands.

Repayment works when it is a genuine reduction in what the director owes, funded from the director's own resources — not a loop through the company's bank account.

Clearing a balance before the year end

There are three realistic routes, and each has a different cost.

Repayment. The director puts money back into the company. Clean, but it requires the cash to exist.

Dividend. A dividend can be declared to clear the account, but only if there are sufficient distributable profits, supported by properly prepared accounts and a board minute. A dividend declared without reserves is not a dividend; it is an overdrawn loan with a misleading label, and the risk of recharacterisation is real.

Bonus or salary. Running the amount through payroll creates PAYE and National Insurance liabilities, but for modest sums the total cost can compare favourably with 33.75% plus the eventual benefit charge. The comparison is worth doing with actual numbers rather than assumption.

A seven-step health check

1. Reconcile the ledger. Agree the opening balance to the prior year accounts and clear any unexplained entries before doing anything else.
2. Classify the balance. Separate genuine loans from unreimbursed expenses, unrecorded dividends and misposted items. A surprising proportion of overdrawn balances shrink once miscoding is corrected.
3. Identify the timing. Section 455 looks at the balance at the period end; the benefit charge looks at the loan throughout the tax year. Both need checking, and they may not fall on the same date.
4. Test the £10,000 aggregate. Include all loans to the same director, not just the main account, and include loans to relatives where relevant.
5. Check the paperwork. A board minute approving the loan, a written loan agreement setting out interest and repayment terms, and evidence of interest actually charged.
6. Cost the clearance options. Repayment, dividend and payroll each have a price. Compare them before the deadline, not after.
7. Diary the next review. A quarterly glance is enough for most micro-companies; annual attention is what allows drift.

Red flags worth acting on

A balance that has grown every year is the clearest signal. So is an overdrawn account in a company with thin profits, or an account cleared by dividends while reserves are questionable. Rush repayments in March followed by fresh borrowing in April should be treated as a warning, not a routine. And an absence of any documentation is a problem in itself, regardless of the size of the balance.

None of this is difficult. It is simply easy to postpone, and postponement is what converts housekeeping into a charge. A short review each quarter, and a longer one before the accounting reference date, keeps the account doing the job it was designed for.