Changing Interest Date
New Hampshire Revised Statutes Annotated (RSA) states the payment is considered received by the post marked date shown on the envelope. Therefore, in order to calculate the interest due, you need to change the interest date to reflect the correct postmark date. On the right side of the Receivables Data Display tab you will see a Date field, which defaults to today's date. To change this field, click in the date field. This will display a calendar. Choose the posting date by clicking on a date and then selecting Update. Your program's main screen will now display the new date and the field is now red to remind you that you are not on the current date. After you are done with this transaction, remember to change the date back to the current date.
Refer to RSA 80:55 Timely Mailing