[GNC] How to apply overpayment to new invoice?

[Adrien Monteleone]

If you have both a pre-payment and an invoice unpaid, simply select both 
of them in the Process Payments window. If the net is zero then they 
will both be cleared out.

If there is still pre-payment left, that remainder will be their next time.

If there is still invoice left, it will continue to show as unpaid.

You may need to use the 'Edit Payment' in the right-click menu on the 
transaction however.

Regards,
Adrien

On 3/23/22 5:35 AM, Eric H. Bowen via gnucash-user wrote:
> I was late with my property taxes this year and incurred a penalty. I 
> had earlier entered the billed amount as an invoice payable to the tax 
> collector. I finally got the funds together to pay the amount, including 
> penalty, in full. I entered it as one payment transaction, of course, 
> since it was one e-check, and now it's showing up in my "Accounts 
> Payable" as two transactions, one for the remaining billed amount (I had 
> made partial payments earlier), and a separate transaction for $136.63 
> representing the penalty and interest which appears as an unassigned 
> pre-payment.
> 
> OK so far. Well, now that I know the total penalty I entered another 
> invoice for that amount. Fine. Now I want to pay the invoice with the 
> pre-payment. I go to the payment screen and the pre-payment shows up 
> there. But I can find no way to apply it to the new invoice. How do I 
> close this [expletive!] out?