Accrued interest is the amount of interest accumulated on a bond or other fixed income security. Accrued interest can be accumulated interest that is either payable or receivable, but not yet paid or received. On the sale of a bond, the seller gets the market price as well as the accrued interest. Accrued interest is calculated on a monthly or yearly basis for corporate and municipal bonds. For government bonds, the interest is calculated on actual calendar days. Accrued interest in listed as a liability.