Wikipedia
In finance, accrued interest is the interest on a bond or loan that has accumulated since the principal investment, or since the previous coupon payment if there has been one already.
For a financial instrument such as a bond, interest is calculated and paid in set intervals (for instance annually or semi-annually). Ownership of bonds/loans can be transferred between different investors not just when coupons are paid, but at any time in-between coupons. Accrued interest addresses the problem regarding the ownership of the next coupon if the bond is sold in the period between coupons: Only the current owner can receive the coupon payment, but the investor who sold the bond must be compensated for the period of time for which he or she owned the bond. In other words, the previous owner must be paid the interest that accrued before the sale.
Usage examples of "accrued interest".
Mother figured that the accrued interest on the long-term accounts would be enough to pay off our family debt and perhaps allow me to survive comfortably for a while.
Miss Fox, would very much like to have twenty-six thousand dollars, no doubt with accrued interest, to discharge debts of your dead father.
And when they leave, Vainmill will sit on their money for seven years and then take ten minutes getting a friendly judge to rule that the accounts are dead and that they are entitled to both the money and the accrued interest.
The price of Ismay was -- one million Canadian dollars, with accrued interest, because Francis had not been drawing heavily on his income.
The MCT's purpose was to invest all capital remaining to the MC after mounting the expedition (something under one billion EuroDollars) and use the accrued interest to watch over the colonists' rights to their new home.
From his point of view, maybe it was: Erinakios had deprived him of some accrued interest.