Forum Post: Discount for timely payment

I sent a bill to a client using the feature giving a discount if paid by the end of the month. The client paid the reduced balance which included the discount before the end of the month. This payment was posted prior to month end but when I created the bill the following month, the discount was not included. Do I have to discount this manually? Or is there a way to have the discount applied automatically? We're using Timeslips 2016.