If the due date of a bill is after the closing date of

Solution

In an Current Account, interest is calculated on the amount of a bill from the date of transaction to the closing date of the period concerned. In case the due date of the bill falls after the closing date of the account, then no interest is allowed for that period. However, it is customarily followed that interest from the date of closing to the due date is written in red ink in the appropriate side of the Account Current. This interest is called Red-Ink Interest. This Red-Ink interest is treated as negative interest.