When a payment arrives, someone has to answer the question "what is this for?". Remittance advice is the payer’s answer: a short document or email listing the invoice numbers being paid, the amounts against each, and any deductions taken — credits applied, early-payment discounts, disputed lines withheld.
It matters most when payments and invoices do not match one-to-one: a single bank transfer covering seven invoices, or a payment that is $80 short because a credit note was offset.
Why It Matters
Without remittance advice, a lump-sum payment against multiple invoices is a puzzle — which invoices do you mark paid? Reconciliation slows, statements go out wrong, and clients get chased for invoices they already settled. Asking clients to include remittance details (or simply to quote invoice numbers in the transfer reference) is a small process habit with an outsized effect on clean books.
Example
A retailer pays a supplier $4,320 in one transfer. The attached remittance advice reads: INV-201 $1,500 · INV-207 $2,000 · INV-212 $900 − CN-031 credit $80. The supplier marks three invoices paid and one credit consumed in two minutes flat.
Frequently Asked Questions
Is remittance advice proof of payment?
No — it is a statement of intent that usually accompanies a payment, not evidence the money moved. Proof of payment is the bank record; a receipt from the seller confirms it arrived.