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Finance 4 min readMar 16, 2025

Credit Memo vs Debit Note: When to Use Each

The difference between credit memos and debit notes, with real examples of when each document should be issued.

M
Matt Field
Head of Content

Credit memos and debit notes both adjust the amount owed between two parties — but they work in opposite directions and are issued by different parties. Getting them wrong creates bookkeeping errors that are painful to untangle.

What Is a Credit Memo?

A credit memo (or credit note) is issued by a seller to reduce the amount a buyer owes. You issue a credit memo when you've overcharged, when a client returns goods, or when you've agreed to a price reduction.

  • Issued by: seller
  • Effect: reduces amount owed by buyer
  • When to use: overcharge, return, discount after invoice
  • Example: You invoiced $1,000, client returns $200 of goods → issue credit note for $200

What Is a Debit Note?

A debit note is issued by a buyer to a seller to request a reduction in the amount owed — or by a seller to increase the amount the buyer owes. It's the mirror image of a credit note.

  • Issued by: buyer (requesting credit) or seller (additional charges)
  • Effect: increases or decreases the original invoice amount
  • When to use: underbilling, additional charges, purchase returns from buyer side
  • Example: You invoiced $800 but should have charged $950 → issue a debit note for $150

Quick Reference

DocumentIssued byEffect on amount owedCommon use
Credit memoSellerDecreasesReturn, overcharge, discount
Debit note (buyer)BuyerDecreasesDispute, return request
Debit note (seller)SellerIncreasesUnderbilling, extra charges

How to Handle These in Matey

In Matey, you can issue credit notes directly against an existing invoice. This keeps your records clean — the original invoice stays on file, and the credit note is linked to it. For debit notes (additional charges), raise a new invoice referencing the original.

Frequently Asked Questions

Do I need to issue a new invoice or a credit note for a refund?
Issue a credit note. It's the correct document for reducing a previously issued invoice and keeps your audit trail clean.
Are credit memos and credit notes the same thing?
Yes — they're the same document. 'Credit memo' is more common in the US; 'credit note' is standard in the UK, Australia, and most of Europe.
Does a credit note cancel an invoice?
A credit note for the full invoice amount effectively cancels it. A partial credit note reduces the balance owed.
Do I need to charge GST/VAT on credit notes?
Yes — if the original invoice included tax, the credit note should also reflect the tax adjustment. Your accounting software should handle this automatically.
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