Allocate One B2B Remittance Across Several Invoices

Identify the payment independently of the allocation

Record the actual amount, date, currency, and bank or processor reference. A buyer’s remittance advice can show which invoices they intended to pay. Match it to the independently confirmed payment before applying the amount to open invoices.

Allocate using the invoice breakdown

• For each invoice, record the amount applied, previous balance, and balance remaining.
• Keep any stated discount, return, or deduction separate from the cash allocation until reviewed.
• When the buyer omits a reference or the allocation exceeds the verified payment, retain the unapplied amount in a queue for follow-up.

Confirm the allocation with finance and the buyer

If the payment applies to several divisions or locations, verify that each invoice belongs to the intended buyer account before posting. Reconcile the allocation total back to the original transaction. Send a statement or acknowledgment showing which invoices still have open amounts.