Director's Loan Account Snowball: Why It Never Really Clears
Most owner-managed companies clear the directors loan account the same way every year: vote enough dividends nine months after the year end, avoid S455 tax, file the accounts. It works, but an overdrawn directors loan account cleared this way quietly rebuilds itself and has to be cleared again every year just to stand still. The reason is that those dividends land in the following personal tax year, pre-loading a bill before the year has even started.
How S455 tax works on an overdrawn directors loan account
If a directors loan account is overdrawn nine months and one day after the company's year end, HMRC charges S455 tax on the outstanding balance. The S455 tax rate tracks the dividend upper rate, so it is 35.75% for loans made on or after 6 April 2026 and 33.75% for loans made between 6 April 2022 and 5 April 2026. A long-standing overdrawn directors loan account can therefore contain layers taxed at different S455 tax rates. Tax on overdrawn directors loan account balances is reported on the CT600A pages of the corporation tax return and paid alongside the corporation tax.
S455 tax is not a penalty, and it is refundable once the loan is repaid. The catch is that the refund is not available until nine months after the end of the accounting period in which the repayment happened, and it has to be claimed through the company tax return for the period in which the loan is repaid, or on form L2P where that return has already been filed. Money paid in early 2026 on a loan repaid in late 2026 may not come back until 2028.
Because of that lag, and an S455 tax rate above 33%, the standard advice on an overdrawn directors loan account is to avoid the charge rather than pay and reclaim it. For a company with sufficient distributable reserves, that is usually right.
Repaying and redrawing: the bed and breakfast rules
Anti-avoidance rules target an overdrawn directors loan account that is repaid and then redrawn. Where £5,000 or more is repaid and a new loan of a similar amount is drawn within 30 days, the repayment is matched against the new loan and does not relieve S455 tax. A separate rule can apply to balances of £15,000 or more where arrangements exist to redraw, regardless of the 30-day window.
Neither rule applies where the repayment is itself taxable income of the director, such as a dividend or bonus credited to the directors loan account. If a pattern looks engineered around the deadline, take specific advice.
Why an overdrawn directors loan account balance rolls forward every year
A dividend is taxed when it becomes due and payable. For the typical interim dividend in an owner-managed company that is when it is paid or credited to the directors loan account — and that date sets the personal tax year, not the company year the profits came from.
Take a company with a 31 March year end. The director draws £60,000 through the year to March 2026, creating an overdrawn directors loan account. In December 2026, before the S455 tax deadline, the accountant declares £60,000 of dividends and credits them to the directors loan account, clearing it. That is when they become due and payable, so they are taxable in 2026/27.
Meanwhile, through 2026/27, the director is drawing again. That drawing will be cleared by a dividend voted in December 2027, taxable in 2027/28. The pattern repeats, and the director is permanently one year behind themselves.
Plenty of companies run this way for years, and there is nothing improper about it — the tax is paid, simply later and in a different year than the drawings it relates to. The difficulty is that the amount being carried grows quietly and becomes a structural feature that nobody remembers creating. Every individual year looked dealt with, so the overdrawn directors loan account is never questioned.
The tax year is the thing to watch
The company year end and the personal tax year rarely align, and the gap is where the problem hides. A March year end with a December vote puts nine months of drawings into a tax year that already contains its own drawings.
This is why a schedule matters more than a memory. Company year ends down one axis, personal tax years across the other, dividends voted in each cell. It takes minutes a year to maintain and it is the only reliable way to see what your directors loan account is actually carrying.
What the roll-forward costs in tax
The cost of clearing an overdrawn directors loan account with dividends every year is not interest or penalties. It is band compression: income arriving in lumps rather than evenly, and crossing thresholds it did not need to cross.
The 2026/27 dividend rates make this expensive:
| Band | Dividend rate 2026/27 |
|---|---|
| Basic rate (to £50,270) | 10.75% |
| Higher rate (£50,270 to £125,140) | 35.75% |
| Additional rate (above £125,140) | 39.35% |
The ordinary and upper rates each rose by two percentage points from 6 April 2026. The additional rate was unchanged. Because the S455 tax rate follows the upper rate, it moved with it for loans made on or after that date.
On top of that sits the personal allowance taper. Between £100,000 and £125,140 of adjusted net income, the personal allowance is withdrawn at £1 for every £2, and because the lost allowance exposes other income to tax, the effective marginal rate across that band rises well above 50%.
Suppose a director's sustainable income is £70,000. Spread evenly, most of it sits in the higher band and none of it touches the taper. Now suppose a roll-forward means one year carries £70,000 plus £40,000 of catch-up. That £110,000 runs straight through the taper. The director did not earn more; they received it in the wrong shape and paid for the timing. There is no averaging relief to recover it afterwards.
When to leave an existing S455 tax charge alone
If S455 tax has already been paid on an older slice of the overdrawn directors loan account, and the director continues drawing at a similar rate, that slice is often best left where it is. The tax on overdrawn directors loan account balances is already out of the door. Recovering it means clearing the underlying loan, and if the practical route to that is a dividend, it means personal tax now — potentially at 35.75% — in exchange for a company refund that arrives well over a year later.
Suppose £40,000 of the overdrawn directors loan account dates from 2023 and £13,500 of S455 tax was paid on it at the 33.75% S455 tax rate then in force. Clearing that layer with a dividend today costs the director £14,300 of personal tax at 35.75% to release a £13,500 company refund that arrives more than a year later. Unless the director wanted that income anyway, the exchange rarely makes sense.
If the balance is not reducing anyway, chasing the refund converts a recoverable company asset into an immediate personal liability. It can be the right move, but it should be a calculation rather than a reflex.
Treat that settled layer as firm ground and focus the planning on the live balance sitting above it. That is where the decisions actually are.
How to unwind an overdrawn directors loan account snowball over three years
There is no one-year fix that does not hurt, because unwinding the position means voting more than you draw and paying tax on the difference. The workable version is spread over three.
- Establish the real numbers. What is the sustainable annual drawing, separate from one-off events? What is the roll-forward, and how much S455 tax has been paid on the directors loan account, at which S455 tax rate? What are the distributable reserves, after corporation tax has actually been provided for? You cannot vote a dividend the reserves do not support, whatever the bank balance says.
- Set the annual excess by threshold, not by round number. Vote slightly more than the director draws, sized so total personal income stays below whichever threshold matters — usually £50,270 or £100,000 — rather than to a tidy figure.
- Smooth deliberately. Two years at £75,000 costs materially less than one at £110,000 followed by one at £40,000, despite the identical total.
- Re-test each year. Other income changes. A property sale, a spouse's earnings, a pension contribution — any of these move the thresholds that the plan is built around.
- Record the reasoning. Whoever prepares the accounts in three years will otherwise see only an overdrawn directors loan account balance that needs clearing, and will clear it the usual way.
The goal is not to minimise tax in the current year. It is to stop the structure forcing bad years on you.
Three questions to ask your accountant
Three quick checks:
- What is my directors loan account balance, and how much S455 tax has been paid on it, at what S455 tax rate?
- How much of the dividends on my last personal tax return related to drawings from the previous company year?
- Are we clearing the overdrawn directors loan account each year, or reducing it?
If the answer to the third is "clearing", the snowball is running.
Our accounts and tax team reviews your directors loan account as part of every year-end, alongside your wider director tax strategy.
Frequently Asked Questions
What is the S455 tax rate on an overdrawn directors loan account?
The S455 tax rate is 35.75% for loans made on or after 6 April 2026 and 33.75% for loans made between 6 April 2022 and 5 April 2026, with older loans on their own historic rates. Tax on overdrawn directors loan account balances is due with the corporation tax nine months and one day after the year end. It is refundable once the loan is repaid, but the refund is claimed through the company tax return for the period of repayment, or on form L2P where that return is already filed, and is not available until nine months after the end of the accounting period in which repayment occurred.
Does voting a dividend before the year end clear an overdrawn directors loan account?
It can, but only if the distributable reserves support it at the date of the vote and the resulting personal tax is acceptable. Voting before 5 April also moves the income into the earlier personal tax year, which may or may not be what you want depending on your other income in each year.
Is it better to pay S455 tax than take a large dividend?
Sometimes. Tax on overdrawn directors loan account balances is refundable and personal tax is not, so where a large dividend would push income through the £100,000 taper or into the additional rate, paying the charge and unwinding gradually can cost less overall. It depends on the size of the balance and the director's other income, so it needs to be modelled rather than assumed.
How do I know if my directors loan account is carrying a roll-forward?
Compare the dividends declared on your last personal tax return with the drawings made during the corresponding company year. If a large part of the dividends related to the previous company year, you are carrying a balance forward. A dividend schedule mapping company year ends against personal tax years makes this visible at a glance.