The section 455 charge has an obvious weakness on paper: it looks only at whether the loan is outstanding nine months after the year end, so a director could repay just before that date and take the money out again immediately afterwards. Two rules close that, and they are worth understanding because they catch arrangements that were never intended to be avoidance at all.
The thirty-day rule
Where a director repays £5,000 or more and the company makes a new loan of £5,000 or more within thirty days before or after that repayment, the repayment is matched against the new loan rather than against the old one. The original balance is treated as still outstanding and the charge stands. This catches the deliberate round trip, and it also catches a director who happened to clear the account with a bonus in March and draw against the next dividend in April, which is why the timing matters even where nothing is being engineered.
The arrangements rule
Beyond thirty days, a wider rule applies where the balance outstanding is £15,000 or more and, at the time of repayment, there were arrangements or an intention to redraw. It has no fixed time limit, which makes it the harder one to plan around, and the test is about intention at the moment of repayment rather than about what actually happened afterwards. A repayment funded by a genuine personal source with no plan to redraw is outside it; a repayment made from money borrowed for the purpose usually is not.
Reading this as law rather than as a loophole map
Both rules are published anti-avoidance provisions and both have been in place long enough that HMRC's systems look for the pattern. The practical consequence for an ordinary owner-managed company is not that it needs a scheme, it is that the routine cycle of clearing a loan account and immediately drawing against the next distribution can produce a charge nobody expected. The straightforward answers, a dividend where there are reserves or a repayment from genuine personal funds, are outside both rules by construction.
Questions people ask about directors loan tax avoidance
What is the thirty-day rule on directors loans?
Where £5,000 or more is repaid and £5,000 or more is borrowed again within thirty days either side, the repayment is matched against the new loan, so the original balance is treated as still outstanding and the section 455 charge stands.
Is there a rule beyond thirty days?
Yes. Where the balance is £15,000 or more and there were arrangements or an intention to redraw at the time of repayment, the repayment can be disregarded regardless of how long the gap was.
Does clearing a loan with a dividend fall foul of these rules?
No. A dividend declared out of distributable reserves extinguishes the loan rather than repaying and redrawing it, and it is the ordinary route for a company with reserves.