1. Apply payment to outstanding invoice for the amount due.
2. Write note in Invoice Binder indicating client credit for next month
3. Apply amount due from QBO deposit, leaving an unapplied cash balance
1. Create invoice in full amount. Send to QBO (but not to client)
2. Apply payment in the amount of client credit to that same invoice and issue to client (and QBO)
3. Assign unapplied cash to client invoice.