To avoid paying S419 tax on an overdrawn directors loan account, obviously you need to pay back the loan within 9 months and 1 day of the year end. However, I'm unsure which balance would need to be paid back. Would it be the balance as at the year end date, or the balance as at the date that the loan gets paid back?
For example if the loan was £10,000 at the year end date and on the CT600, but 9 months later, when paying back the loan, the balance on the overdrawn loan account is £11,000, would it be £10,000 that's needs paying back or the full balance of £11,000? (FYI I have sorted P11D's out).