Credit Memo Explained: Meaning, Examples And How To Use Them

Learn how credit memos work, when to use them, and how they differ from refunds, debit memos, and credit notes - with real examples and accounting tips for SMEs.

September 22, 2025
-

0

min read

Everyone loves a memo, and when it comes to business and overall capitalism, a credit memo is a memo that also acts as a powerful accounting tool. A credit memo fundamentally communicates to the buyer that the seller is giving them some credit and/or leeway. Knowing when and how to issue a credit memo can help you keep accurate books, build customer trust, and avoid disputes.

What is a credit memo in accounting?

A credit memo (short for credit memorandum) in accounting is a document issued by a seller to a buyer, reducing the amount the buyer owes.  Think of it as the opposite of an invoice because: An invoice increases the amount owed. A credit memo decreases the amount owed.

Credit memos are used primarily to avoid having to issue an invoice or make a significant monetary transaction. They are often used to correct billing mistakes or account for returned or damaged goods. Instead of cancelling and reissuing an entire invoice, a credit memo adjusts the balance and creates a clear audit trail. This same approach can also apply when products are returned due to defects, over-ordering, or damage in transit, or when a service is cancelled before it's completed.  In all of these cases, the receivable amount is reduced, and accounts stay accurate without unnecessary paperwork.

Credit memos can also be used as goodwill adjustments after a sale, which can sometimes act like a "tip" to the customer.  A business might issue a partial credit if a project took longer than planned or if it wants to reward a loyal customer with a discount on future purchases. Unlike a refund, which sends money back to the customer, a credit memo reduces what is owed or applies credit forward.

When are credit memos issued?

Credit memos are issued for businesses that issue credit memos in a variety of situations, and knowing when to apply them is of the utmost importance for both compliance and customer satisfaction. Each scenario reflects a slightly different business need,  from correcting genuine mistakes to building goodwill with clients.

Here are common scenarios where credit memos are issued

Scenario Description Why issue a credit memo? Example
Product returns Customers return goods that are defective, excess to requirement, or not as described. Adjusts the buyer’s account without cancelling the original invoice. A buyer returns 10 defective chairs from a 100-unit order.
Pricing errors If the wrong unit price or calculation is applied to the invoice. Corrects billing errors while leaving a clear audit trail. Item billed at £120 instead of £100; a £20 credit memo issued.
Post-sale discounts Discounts are granted after an invoice has already been issued (loyalty, bulk, or seasonal discounts). Recognises the discount without voiding or reissuing the invoice. A wholesaler grants a 5% loyalty discount after invoicing.
Damaged goods Items arrive defective or broken during shipment or delivery. Reduces the customer’s obligation to reflect unusable goods. A delivered appliance is damaged in transit; the seller issues partial credit.
Order cancellations Customer cancels services or goods in part or in full. Prorates charges and reduces accounts receivable. A SaaS subscription cancelled mid-term triggers a prorated credit memo.
Goodwill adjustments Issued to maintain client relationships, even when no error occurred. Provides compensation without cash refunds, keeping clients satisfied. A £50 credit is applied for the inconvenience caused by service delays.

{{iwoca-pay-cta="/components"}}

Credit memo vs credit note vs debit memo

So who gets credit for what, and is this a credit memo or a credit note? The terminology can be confusing for SMEs, especially when trading and doing business in different countries. Below, we break down why each of them is different and real scenarios in which you might use them.

Credit memo vs credit note

A credit memo and a credit note are fundamentally the same thing, just used differently in differnet countries. In essence, a credit memo and a credit note are two names for the same document. Both reduce the amount a customer owes to a business. The difference is mainly in the regional language: A credit note is common in the UK, EU, and much of Asia while a credit memo is more widely used in the US.

Example (UK business, credit note): A London wholesaler invoices a retailer £10,000 for five hundred units. On delivery, the retailer discovers that fifty units are defective, each valued at £20. Rather than issuing a cash refund, the wholesaler provides a credit note for £1,000. This reduces the retailer’s outstanding balance from £10,000 to £9,000, while maintaining a clear paper trail for both parties’ accounting records.

Credit memo vs debit memo

Credit memos and debit memos both adjust customer accounts, but they work in opposite directions. A credit memo reduces what the customer owes, while a debit memo increases it. Understanding when to issue each keeps records clean, avoids confusion, and makes sure invoices reflect the real balance. In layman's terms, a credit memo decreases the customer’s payable balance, often for billing errors, returns, or goodwill adjustments. A debit memo increases the balance, usually when the seller undercharged or forgot to add an item in the first place.

Example (credit memo): A SaaS provider bills a client £1,200 for annual software access. After ten months, the client cancels their plan, meaning £200 worth of unused service remains. Instead of refunding cash, the provider issues a credit memo for £200. This reduces the payable balance from £1,200 to £1,000, while allowing the client to apply the credit toward other services.
Example  (debit memo): A logistics company invoices a client £5,000 for freight services. Later, it discovers that the overweight charges of £500 were missed in the initial calculation. Instead of issuing a new invoice, the company raises a debit memo for £500. This increases the client’s outstanding balance from £5,000 to £5,500, ensuring that the additional costs are properly recorded.

Document Definition Purpose Example Amounts
Credit Note A document issued by a seller to reduce the amount payable by the buyer. Commonly used term in the UK and EU. Corrects overcharges, returns, or discounts after invoicing. Invoice: £10,000 → Credit Note: £1,000 → Adjusted Balance: £9,000
Credit Memo Similar to a credit note, but more common terminology in the US. Reduces the buyer’s outstanding balance. Applies to unused services, cancellations, or goodwill adjustments. Invoice: £1,200 → Credit Memo: £200 → Adjusted Balance: £1,000
Debit Memo A document issued by a seller to increase the amount owed by the buyer. Often used for underbilling or extra charges. Captures missed charges without reissuing a new invoice. Invoice: £5,000 → Debit Memo: £500 → Adjusted Balance: £5,500

Key details to include in a credit memo

If a credit memo is going to be issued, it had better be issued correctly. Remember, credit memos are first and foremost an accounting tool, and with accounting, the more details the better.  Because it directly affects accounts receivable, tax reporting, and customer balances, it must contain specific information to be valid.

Here are the ESSENTIAL elements every credit memo should include:

  • Reference number (unique ID): Distinguishes each memo and prevents duplication.
  • Buyer and seller details: Legal names, addresses, and VAT/tax IDs for both parties.
  • Issue date: Establishes the correct reporting period.
  • Linked invoice reference: Connects the memo to the original invoice.
  • Description of credited items: Quantities, unit prices, and line totals.
  • Total credited amount: Clear statement of the value credited.
  • Reason for issuance: Explains why the credit was applied (returns, errors, discounts).

{{find-out-iwocapay-cta="/components"}}

How to record and manage credit memos

Recording credit memos correctly is critical for keeping financial records accurate and ensuring smooth audits. When handled well, they not only reduce disputes but also highlight trends that SMEs can address, such as frequent product returns or recurring pricing errors.

Journal entry treatment

From an accounting perspective, a credit memo adjusts the books in specific ways depending on the scenario. Each adjustment affects different accounts, and understanding this ensures SMEs keep accurate ledgers and avoid audit issues.

Accounting insight w/ credit memos

  • Accounts Receivable (AR): Always reduced by the credited amount, since the customer owes less. This lowers the outstanding balance and ensures receivables match reality.
  • Revenue: Decreased if the credit memo relates to sales returns, post-sale discounts, or pricing corrections. This ensures sales figures aren’t overstated.
  • Inventory: Increased when goods are physically returned and resalable, restoring stock levels and balancing Cost of Goods Sold (COGS).

Using software like QuickBooks

For SMEs, most credit memos are created and managed within accounting software rather than manually. QuickBooks, in particular, makes the process straightforward and reduces the risk of human error.

QuickBooks instructions

Steps in QuickBooks:

  • Select + New → Credit Memo from the dashboard.
  • Choose the correct customer from your records.
  • Enter the product or service details being credited.
  • Link the memo to the original invoice for a clear audit trail.
  • Save and either apply against outstanding invoices or keep as future customer credit.

Best practices for SMEs in managing credit memos

To manage credit memos in the best and most efficient way possible, SMEs should adopt a set of habits that keep their records clear and their customers satisfied.  Not to mention avoiding auditors and all the complications that those bring.  Implementing a  few best practices into daily operations, businesses can turn credit memos into an important and valuable tool for financial control rather than just an administrative task.

Best Practice Why It Matters Example
Reference the original invoice Prevents disputes and confusion Credit Memo #045 applied to Invoice #1123
Track reasons for issuance Helps identify recurring problems 30% of credits are linked to shipping damages
Apply credits quickly Keeps AR balances accurate £500 credit applied within the same billing cycle
Use templates Ensures consistency across staff Every memo includes a reference number, date, and reason

Benjamin Locke

Benjamin writes about finance, real estate, business, economics and most things economics or investment related.

About iwoca

  • Borrow up to £500,000
  • Repay early with no fees
  • From 1 day to 24 months
  • Applying won't affect your credit score

iwoca is one of Europe's leading digital lenders. Since  2012, we've helped over 90,000 business owners access fast, flexible finance.
Whether you want to manage cash flow, invest in growth, or seize new opportunities, iwoca can help you achieve your goals with simple, fair and transparent business loans designed around your needs.

Learn more

Accept payments with iwocaPay

  • Trade customers split payments into 1, 3 or 12 monthly instalments
  • Online and in store, on orders up to £30k
  • You get the funds instantly, every time, with no recourse
Find out more

Growing your revenue with integrated trade credit

Research, case studies and practical tips to help you unlock the power of payment terms.

  • Increase order volume and conversion rates
  • Drive purchasing behaviours without discounting
  • Expand your offering and customer base
Get your free guide