Overpayments and credit balance

If you pay more than the invoice amount — e.g. you round up, or you paid a previous balance that has since been written off — QUALICORE never throws the surplus away.

• How it works:*

1. The payment record captures the exact amount tendered.
2. Each invoice the payment touches is settled in order of due date.
3. Any surplus is added to the company's credit balance (Company.credit_balance).
4. The credit applies automatically to the next invoice raised.

• Where to see it:*
• Admin → Subscription shows the live credit balance at the top of the page.
• Super-admin → Companies → [tenant] → Credit Actions lets you transfer, refund, or zero out the balance.

• Audit:* every credit application is logged in the audit log with the source payment ID and the destination invoice ID, so finance can reconcile to the cent.