When a partial payment is made after interest has accrued for an amount due for a tax jurisdiction not using a compounding method, Instant Interest asks you whether to apply the payments first to accumulated interest or to outstanding taxes due.
The three buttons functions as follows:
Tax - Applies payments to accumulated interest first.
Interest - Applies payments to outstanding taxes first.
Cancel - Abandons the calculation and returns you to the appropriate data entry panel.
Select the appropriate option by clicking on the corresponding command button.