The credit note crisis: The hidden cost of unclaimed credits

The short answer

An unclaimed credit is money a supplier owes you, for a short delivery, a return or a pricing error, that never comes back. It happens because the credit note arrives late, arrives unlinked to its invoice, or never arrives, while the full invoice gets paid. Returned goods and cancelled items together account for 27% of overpayment losses in the apexanalytix 2026 Global Overpayment Report.

What is an unclaimed credit?

An unclaimed credit is a refund you were entitled to but never received or never applied.

The pattern is familiar to anyone who has run a kitchen or a stockroom. The delivery arrives two cases short. The driver notes it. Someone emails the supplier. The invoice for the full order arrives, and gets paid. The credit note, if it comes at all, lands weeks later in a different inbox, with a different reference.

How big is the problem?

Nobody publishes a reliable UK figure for unclaimed credit notes. That absence is itself the problem: if it isn’t measured, it isn’t managed.

The closest evidence comes from overpayment research. The apexanalytix 2026 Global Overpayment Report attributes 13% of lost profit to returned goods never credited and 14% to cancelled invoices or services still being paid. Add unclaimed rebates at 10%, and more than a third of overpayment value comes from money you were owed back.

Audits that look specifically for missing credits find them. In one apexanalytix client case, a review of supplier statements across 1,200 suppliers, focused on credits more than 90 days old, recovered $2.5m from 500 claims.

The friction runs both ways. In the UK Groceries Code Adjudicator’s latest supplier survey, 20% of suppliers said invoice discrepancies were not resolved adequately, up from 17%. When the paperwork breaks down between trading partners, money goes missing.

Why do credit notes go missing?

1. The claim is never raised. A short delivery is noticed at the back door but never reported to whoever pays the bills.
2. The supplier never issues it. Without a chase, many claims simply lapse.
3. It arrives unlinked. The credit note quotes its own number, not the invoice it relates to, so nobody matches it.
4. It arrives after payment. The full invoice has already been paid, so the credit sits on the supplier statement unused.
5. It goes to the wrong place. A site manager’s inbox, a delivery driver’s clipboard, a folder nobody opens.
6. It ages out. Many suppliers set time limits for disputes. Once missed, the credit is gone.

What does an unclaimed credit really cost?

More than its face value. The 1-10-100 rule, a data quality principle attributed to Labovitz and Chang, holds that preventing an error costs 1, correcting it later costs 10, and leaving it uncorrected costs 100.

Credits follow the same curve. Catching a short delivery at the door costs a minute. Chasing a credit note a month later costs an afternoon of emails. Never claiming it costs the full amount, plus the margin you were relying on.

Paying someone else to find it is not cheap either. Recovery audit firms typically charge 20-30% of what they recover.

Key trends

• More suppliers, more fragmentation. Multi-site operators buy from more specialist and local suppliers, so credits are spread across more relationships.
• Exception rates are climbing. Ardent Partners’ average invoice exception rate rose from 14% in 2025 to 19.9% in 2026. Every exception is a potential missing credit.
• Statement reconciliation is moving from monthly to continuous. Instead of reconciling supplier statements at month-end, automated tools match each credit to its invoice as it arrives.
• Prevention is overtaking recovery. Clean-billing, where the supplier invoices only what was delivered, removes the need for many credit notes altogether.

How do you stop losing credits?

1. Record every shortage, substitution and return at the point of delivery, with a photo if you can.
2. Hold the invoice line until the delivery is confirmed.
3. Raise the credit claim the same day, against the original invoice number.
4. Track every open claim until the credit note lands.
5. Match each credit note to its invoice, not just to the supplier.
6. Reconcile supplier statements regularly to catch credits sitting unused.

Where OmniPATH fits

OmniPATH links every credit note to the invoice it belongs to, flags open claims that are ageing, and matches supplier statements against what you have paid and what you are owed. Because it reads invoices line by line, a short delivery shows up as a discrepancy before payment, not a surprise at month-end.

Related reading

• Clean-Billing: The secret to ending the credit note headache for good
• The Silent Profit Drain
• AP automation

FAQ

What is a credit note?

A credit note is a document a supplier issues to reduce the amount you owe, usually for a short delivery, a return, damaged goods or a pricing error. It should reference the original invoice so the two can be matched.

What is an unclaimed credit?

An unclaimed credit is a refund you were entitled to but never received or never applied, often because the claim was never raised, the supplier never issued the credit note, or it arrived after the full invoice was paid.

How much do unclaimed credits cost businesses?

There is no reliable UK benchmark. Global overpayment research from apexanalytix attributes 13% of overpayment losses to returned goods never credited and 14% to cancelled items still being paid.

How do I find missing credit notes?

Reconcile each supplier statement against your own ledger. Credits that appear on the statement but not in your accounts, and claims you raised with no matching credit, are the ones to chase.

Should I pay an invoice before the credit note arrives?

Where you can, pay only the undisputed amount and hold the disputed line until the credit is issued. Paying in full and waiting for a credit puts the burden of recovery on you.

How does automation help with credit notes?

Automation links each credit note to its original invoice, tracks open claims, and reconciles supplier statements continuously, so credits are applied as soon as they arrive and ageing claims are flagged before they expire.

Sources

• apexanalytix – 2026 Global Overpayment Report
• apexanalytix – supplier statement review case study
• SPS Commerce summary of the Groceries Code Adjudicator survey
• MarTech – the 1-10-100 rule
• apexanalytix – recovery audit cost
• Ardent Partners 2025 AP metrics, via apexanalytix
• Ardent Partners AP Metrics That Matter 2026, via Medius