A vendor credit is a document a supplier issues that reduces what your company owes them. It functions like a negative invoice: rather than adding to your accounts payable balance, it subtracts from it. Credits usually arise from returned goods, billing mistakes, negotiated allowances for damaged merchandise, or volume rebates. You record one by debiting Accounts Payable and crediting whichever account was originally charged when you booked the purchase, then apply the resulting balance against a future invoice from the same supplier.
How It Differs From a Refund or an Early-Payment Discount
A credit does not put cash back in your bank account. It creates a balance you can use against future invoices from the same supplier. With a refund, the supplier wires money back. With a credit, your next payment to that supplier simply shrinks by the credit amount. No funds change hands until you use it.
It is also not the same as a purchase discount like “2/10 Net 30,” where you earn a percentage off the invoice for paying early. That kind of discount is baked into the payment terms from the start and depends entirely on how quickly you pay. A credit corrects something that already went wrong, or compensates you after the fact. Different trigger, different accounting, different timing.
Why Suppliers Issue Credits
Returned, Defective, or Wrong Goods
The most straightforward case: you ordered 500 units, 40 arrived damaged, and you shipped them back. The supplier issues a credit memo acknowledging the return and wiping out the corresponding portion of your original invoice. The same applies when the wrong product shows up or when goods fail to meet agreed specifications.
Billing and Pricing Errors
Overcharges happen constantly in procurement. A supplier invoices at $12 per unit when the purchase order says $10. A volume discount that should have kicked in at 1,000 units never gets applied. These gaps surface during invoice reconciliation, and the supplier corrects them by issuing a credit for the difference. Catching the errors depends on your AP team matching every invoice against the original purchase order and the receiving report.
Allowances for Damaged Goods
Sometimes returning damaged merchandise is not practical. Shipping costs may exceed the value of the goods, or you can still use the items at reduced capacity. The buyer and supplier negotiate an allowance: you keep the goods at a lower effective price, and the vendor credits the difference. This avoids the logistics of a return while still adjusting the record to reflect what the goods are actually worth to you.
Volume Rebates
Rather than correcting a problem, a volume rebate rewards purchasing activity. A supplier might offer a 3% rebate once your annual purchases cross $500,000. Under GAAP, specifically ASC 705-20, cash consideration received from a vendor is presumed to be a reduction in the purchase price and should reduce cost of sales rather than be recorded as revenue. Rebates that are probable and reasonably estimable should be factored into inventory valuation as purchases occur, not only when the credit memo finally arrives.
Recording a Vendor Credit in Your Books
When the credit memo arrives, enter it into your system and link it to the original purchase order or invoice. The journal entry follows a simple pattern: debit Accounts Payable (reducing the liability to that vendor) and credit the account that was originally debited when you booked the purchase.
Which account receives the credit depends on what the credit is for:
- Returned inventory that is still on hand: credit the Inventory asset account. If you bought $2,000 worth of goods and returned them, debit AP by $2,000 and credit Inventory by $2,000. Your balance sheet now shows less inventory and less owed.
- Goods already sold: credit Cost of Goods Sold. The items are gone from inventory, so the adjustment flows through COGS instead, improving gross margin for the period.
- Overcharged service or supply expense: credit the relevant expense account (office supplies, maintenance, whatever category the original charge hit), which reduces reported operating expenses.
Getting this classification right is not optional bookkeeping hygiene. Under ASC 705-20, consideration received from a vendor defaults to a reduction of cost of sales unless it qualifies as payment for distinct goods or services you provided to the vendor, or as reimbursement of specific selling costs you incurred. Misclassifying a credit that should reduce COGS as a reduction in operating expenses, or the reverse, distorts your gross margin, your operating margin, or both. Auditors look for exactly this kind of error.
Applying the Credit to a Future Payment
Once recorded, the credit sits as a negative balance in that vendor’s AP sub-ledger. You have two practical options for using it.
The common approach is to apply the credit against the next outstanding invoice from the same supplier. If you owe $8,000 on an open invoice and have a $1,200 credit on file, you remit $6,800 and note both the invoice number and credit memo number on the payment. That clears both transactions in one step and keeps the records clean.
The alternative is to hold the credit as a reserve when no current invoice exists or the credit exceeds any single outstanding balance. The credit rolls forward and offsets the next invoice that comes in. This is common with annual volume rebates that land as a single lump-sum credit. Either way, every application should link the credit memo number directly to the invoice it offsets. That linkage is the audit trail your accountants and external auditors will rely on during reconciliation.
Reviewing Open Credits at Year-End
Unapplied credits do not sit quietly on your balance sheet. They show up as negative balances inside Accounts Payable, which can confuse anyone reading the financials if the amounts are material. At year-end, review every open vendor credit and decide whether it belongs in AP or needs to be reclassified.
A credit balance you reasonably expect to use against an upcoming purchase from the same vendor can stay in AP. A credit you are unlikely to use, perhaps because you have stopped ordering from that supplier, may need to be reclassified as a receivable (the vendor effectively owes you money) or written off against the original expense or inventory account. Leaving stale credits buried in AP is not just untidy. It creates real legal exposure.
The Unclaimed Property Trap
Every state has unclaimed property laws that apply to dormant financial obligations, and vendor credits are no exception. If a credit sits unapplied long enough, your company may be required to report and remit it to the state as unclaimed property. The dormancy period in most states falls between three and five years, though some states exempt certain AP credit balances entirely. Most states have no minimum dollar threshold, so even small credits can trigger an obligation.
The practical takeaway: build a process for periodically reviewing open credits, attempting to apply or resolve them, and flagging any approaching the dormancy window. State unclaimed property audits have become increasingly aggressive, and penalties for late reporting are real. A quarterly review of aging credits is a small effort that prevents a much larger compliance headache.
Controls That Keep Credits From Becoming a Fraud Vector
Vendor credits are a known fraud vehicle. The basic scheme is simple: an employee with too much access creates a fictitious credit, applies it against a real invoice, and pockets the payment that should have gone to the supplier. Or they inflate a legitimate credit and skim the difference. These schemes thrive in organizations where one person handles the entire AP cycle from vendor setup through payment.
The core defense is segregation of duties. No single employee should be able to create a vendor profile, approve a credit memo, and authorize the resulting payment. At minimum, split three functions across three people: one person receives and records the supplier’s credit memo in the system; a second verifies the credit is legitimate by matching it to a return authorization, pricing agreement, or other supporting document; a third applies the credit to an invoice and executes the payment.
Beyond segregation, regular vendor reconciliation serves as a detective control. Compare your AP ledger for each supplier against that supplier’s own statement of your account. When the two do not match, including on unexplained credits, investigate before the next payment goes out. Supporting documentation (the purchase order, receiving report, return shipping records) should back every credit memo. If the paperwork breaks down at any point, the credit should not be applied until someone resolves the gap.
Requesting a Credit When the Supplier Does Not Offer One
Credits do not always arrive on their own. When your invoice-to-PO comparison reveals a discrepancy, or when goods arrive damaged and you want compensation, you typically need to initiate the process. Most companies do this by issuing a debit memo to the supplier, which is a formal request for a credit. The debit memo states the amount, the reason, and references the original invoice or purchase order number.
Speed matters. Suppliers are far more cooperative when you raise issues within days of delivery rather than months later. Document the problem thoroughly: photographs of damaged goods, screenshots of pricing differences between the PO and invoice, inspection reports from your receiving team. The more evidence attached, the faster the credit memo comes back. Some companies set internal deadlines of five business days from receipt for exactly this reason: aging claims get harder to resolve and easier for suppliers to dispute.