Why HMRC questions director's loan accounts
Director's loan accounts are one of the most frequently reviewed areas in a corporation tax enquiry because they sit at the boundary between company money and personal income. HMRC knows that a loan can, in substance, be used as a way of extracting funds without paying the tax that would apply to salary or dividends, so it checks the mechanics closely.
A question about your loan account typically means HMRC has spotted a balance that was outstanding at the year end and wants to understand what happened to it afterwards: was it repaid in cash, written off, converted into salary or dividend, or simply left running into the following year.
This is a routine line of enquiry rather than an accusation. Plenty of directors run a loan account that fluctuates through the year as a normal part of managing cash between themselves and the company, and HMRC's questions are usually about documentation and timing rather than legitimacy.

