The Unclaimed Ledger: Recovering Supplier Credits Month by Month

Most UK SMEs pay close attention to invoices that arrive. Far fewer apply the same discipline to money that should come back. Volume rebates, promotional allowances, settlement discounts and ordinary credit notes can sit on a supplier's ledger for months, then disappear when an agreement rolls over or a finance contact changes. The loss is rarely dramatic in any single month. It is cumulative, quiet and entirely avoidable.

This is not another exercise in invoice checking. Invoice checking asks whether a bill is correct before payment. Credit recovery asks a different question: what has the business already earned, and where is it? The distinction matters because supplier credits often depend on evidence held in different places — a purchasing agreement, a promotional email, a returns note or a quarterly volume calculation. Without a routine, that evidence goes stale.

Start with a credit register, not a spreadsheet graveyard

The first control is a single register for supplier credits. It should be short enough to review in one sitting and specific enough to act on. For each item, record the supplier, the type of credit, the agreement or trigger that created it, the expected amount, the evidence held, the date the credit should have appeared, the expiry date if one applies, the internal owner and the next action.

A useful register distinguishes between three broad categories. First, contractual rebates and allowances: volume thresholds, marketing support, listing fees or agreed annual terms. Second, transactional credits: returns, overpayments, price corrections and duplicate charges. Third, discretionary credits: goodwill adjustments, promotional support or negotiated settlements. Each behaves differently. Contractual credits need a calculation and usually a claim. Transactional credits need reconciliation against statements. Discretionary credits need a written record before the contact who agreed them moves on.

The register should be owned by finance but informed by purchasing. A monthly fifteen-minute conversation between the two functions is often more valuable than a more elaborate system that nobody maintains.

Reconcile the statement before chasing the credit

Supplier statements are not always complete, but they are the natural starting point. Once a month, compare the credit register with the latest supplier statement and the relevant purchase ledger. Mark each item as received, outstanding, disputed or expired. Do not net off a credit against a future payment without documentation; that simply makes the credit harder to trace later.

Where a credit relates to VAT, keep the credit note and the original invoice together. A credit note is an accounting document, not just a message. If the supplier issues a credit note with the wrong reference, ask for a corrected version rather than relying on an email trail.

The monthly review should also look forward. Which rebates are due at quarter end? Which promotional allowances expire at the end of the month? Which supplier statements have not arrived? A small amount of forward visibility prevents the familiar end-of-quarter scramble in which the largest credits are the least documented.

The email that gets a finance team to act

Vague requests produce vague replies. A credit chase should be specific, brief and easy to route internally. Use a subject line that identifies the account and the credit, then set out the facts in a short sequence.

For example: identify the supplier account and your organisation. State the credit type and the period it relates to. Quote the agreement, purchase order, return reference or promotional email that supports the claim. Give the amount you expect and the date it should have been applied. Attach the supporting evidence rather than describing it. Ask for either the credit note number or a written explanation of why the credit is not due, and propose a response date — normally five working days for a straightforward transactional credit and ten for a calculated rebate.

A temperate closing line helps: if the matter is not resolved by that date, say you will refer it to the account manager and ask for the finance escalation contact. This is not a threat. It is a routing instruction, and supplier finance teams respond better to routing instructions than to frustration.

Escalate in stages, with a written record

The first escalation is almost always commercial rather than legal. Send the same summary to the account manager, copying the finance contact, and ask for a joint review of the ledger. Keep the tone factual. Attach the register line and the evidence. If the account manager cannot resolve it, ask for the supplier's formal complaints or disputes procedure.

At the second stage, put the claim in a single letter or PDF. Set out the chronology, the amount, the evidence and the remedy sought. Give a reasonable deadline. If the supplier disputes the calculation, ask for their calculation in writing. Many disputes are not about whether a credit is due but about which volume tier, return period or promotional terms apply.

For larger or repeated failures, review the contract terms before considering formal dispute resolution. The aim is recovery, not theatre. A supplier that consistently loses credits may also be a supplier whose pricing needs to be re-tested at renewal.

Make expiry visible

Credits expire for ordinary reasons: a promotional period closes, a rebate year ends, a contact leaves, a statement is archived. The register should therefore show expiry dates prominently and flag any item within thirty days of expiry. A monthly report to the board or management team need not be long. Three numbers are enough: total credits outstanding, total credits received in the month and total credits expired or written off. That last figure is the one that changes behaviour.

For 2026, the practical test is simple. If the business cannot produce a list of supplier credits it expects to receive in the next ninety days, it is probably leaving money on the table. The remedy is not a complex project. It is a register, a monthly reconciliation and a clear ask.