This article discusses selfcharged interest requirements. I'm wanting to add an interest component to a long term loan liability account.Sec. 342.003. PURCHASE FROM MORTGAGEE. You must keep a record of any money you borrow from or pay into the Company, and this record is usually known as a "director's loan account". The company can write off a loan given to the director. A belowmarket loan is a loan which provides for no interest or interest at a rate below the federal rate that applies.