Debit Note vs Credit Note: Differences, Examples & When to Use
Debit note vs credit note explained: who issues each, how they change the amount owed and tax, accounting entries, and worked examples for buyers and sellers.
Quick answer: In a debit note vs credit note comparison, the key difference is direction: a credit note reduces the amount owed on an invoice, while a debit note increases it (when issued by the seller) or requests a reduction (when issued by the buyer). A seller issues a credit note for returns, overcharges or discounts, and a debit note for undercharges or extra costs. Both reference the original invoice rather than editing it.
This comparison covers who issues each document, how each affects the balance and tax, the accounting entries and worked examples. If you only need the basics of credits, our dedicated credit note guide goes deeper. To issue a replacement or follow-up invoice, use our free invoice generator.
Debit note vs credit note at a glance
| Credit note | Debit note | |
|---|---|---|
| Effect on the customer's balance | Reduces what they owe | Increases what they owe (seller-issued) |
| Usually issued by | Seller | Seller (GST/VAT practice) or buyer (traditional practice) |
| Typical reasons | Returns, overcharge, damaged goods, post-sale discount, cancelled service | Undercharge, extra quantity shipped, price increase agreed after invoicing, added freight |
| Effect on output tax | Reduces it | Increases it |
| Seller's accounting | Debit sales returns, credit receivables | Debit receivables, credit sales |
| References | Original invoice number and date | Original invoice number and date |
| Numbering | Own sequence, e.g. CN-0012 | Own sequence, e.g. DN-0004 |
What is a credit note?
A credit note is a document a seller issues to reduce or cancel an amount on an invoice already sent. Instead of editing or deleting the original invoice, which would break your audit trail, you issue a credit note that references it. The customer then pays the invoice total minus the credit, or holds the credit against future invoices, or receives a refund if they had already paid.
Common triggers include returned goods, a pricing error in the customer's favor, a goodwill discount after a service problem, or a cancelled order. For the full field list, partial versus full credit notes and refund handling, see the credit note guide linked above.
What is a debit note? Two conventions
"Debit note" is used in two different ways, and knowing which one your counterparty means avoids a lot of confusion.
1. Seller's debit note (supplementary charge)
Here the seller issues a debit note to increase the amount owed on an earlier invoice. This is the standard meaning in many GST systems, including India's, where a supplier issues a debit note when the taxable value or tax charged on an invoice turns out to be lower than it should have been. It works like a supplementary invoice: it references the original, states the additional amount and the extra tax, and is due under the original or newly stated terms.
2. Buyer's debit note (request for credit)
In traditional commercial practice, a buyer returning goods or disputing a charge may send the seller a debit note. It tells the seller, "we are debiting your account in our books by this amount", and effectively asks the seller to issue a matching credit note. It does not by itself change the seller's invoice; the seller confirms with a credit note.
When you receive a document titled "debit note", check who issued it and whether it adds to or asks to reduce the balance. If a buyer's debit note is the start of a disagreement, our guide on handling an invoice dispute will help.
Worked example: one invoice, both adjustments
A furniture supplier issues Invoice INV-2026-0310 on 1 October 2026 to a hotel for 20 desk chairs at $250.00 each: $5,000.00 plus 10% tax of $500.00, total $5,500.00. Two things then happen.
| Document | Reason | Net | Tax 10% | Total |
|---|---|---|---|---|
| INV-2026-0310 | 20 chairs at $250.00 | $5,000.00 | $500.00 | $5,500.00 |
| DN-0004 (seller) | Agreed upgrade to armrests on all 20 chairs at $15.00 each, not billed | +$300.00 | +$30.00 | +$330.00 |
| CN-0012 (seller) | 2 chairs returned damaged at $250.00 | −$500.00 | −$50.00 | −$550.00 |
| Net position | $4,800.00 | $480.00 | $5,280.00 | |
The hotel pays $5,280.00. The original invoice stays exactly as issued; the two adjustment documents explain the difference, and anyone reviewing the account later can follow every step. If the hotel had first sent its own buyer's debit note for the damaged chairs, the supplier would still respond with CN-0012.
Accounting entries for each
From the seller's side, using the example above:
- Debit note DN-0004: debit accounts receivable $330.00; credit sales $300.00; credit tax payable $30.00.
- Credit note CN-0012: debit sales returns and allowances $500.00; debit tax payable $50.00; credit accounts receivable $550.00.
The buyer records the mirror image in accounts payable and adjusts any input tax claim. Keeping these adjustments separate from the original invoice makes your receivables easier to reconcile, which our accounts receivable guide explains in more depth.
Tax treatment of debit and credit notes
Under VAT and GST systems, both documents adjust the tax on the original supply, so they usually need to carry tax details: your tax registration number, the customer's where required, the original invoice reference, the net change and the tax change. Some systems set deadlines for issuing adjustments or require specific wording. See our VAT invoice guide and GST invoice guide for the fields that typically apply, and confirm the current rules with your tax authority or accountant, since they differ by country.
In the US, where there is no VAT, credit and debit notes mostly matter for bookkeeping and for correcting any sales tax collected. Some businesses there simply issue a new invoice for undercharges instead of using the term "debit note".
When to use which (and when to do something else)
- Customer owes less: issue a credit note.
- Customer owes more on the same supply: issue a debit note, or a supplementary invoice that references the original.
- Brand-new, separate work: issue a normal new invoice, not a debit note.
- Invoice issued in error and not yet sent or recorded: you may be able to void it instead; see how to void an invoice.
- Several errors on one invoice: a full credit note plus a corrected replacement invoice is often cleanest. Our guide on how to correct an invoice walks through each scenario.
What to put on a debit note or credit note
The two documents share almost the same structure. Each should show:
- A clear title: "Credit Note" or "Debit Note"
- Its own unique number and issue date
- Your business details and tax registration number, if registered
- The customer's legal name, address and tax number where required
- The original invoice number and date being adjusted
- The reason for the adjustment, in plain language
- The quantity, rate and net amount being added or removed
- The tax rate and the tax amount being added or removed
- The total adjustment and, ideally, the revised balance on the original invoice
Showing the revised balance is optional, but it saves the customer's accounts payable team from working it out and makes a follow-up question less likely.
Mistakes to avoid
- Using a negative invoice instead of a credit note. Some systems accept it, but a properly titled credit note is clearer and is what many tax rules expect.
- Issuing a debit note for unrelated new work. A debit note adjusts an existing supply; new work belongs on a new invoice.
- Forgetting the tax adjustment. If the original invoice carried tax, the adjustment almost always needs to adjust tax too.
- No reference to the original invoice. Without it, the customer can't match the adjustment and may pay the wrong amount.
- Ignoring a buyer's debit note. If a customer sends one, respond quickly with a credit note or an explanation, or the balance will stay disputed in their books.
Numbering and record-keeping tips
Give credit notes and debit notes their own prefixes and sequences, never reuse an invoice number, and always quote the original invoice number and date on the adjustment. Our invoice numbering system guide shows how to set up prefixes that keep invoices, credits and debits distinct. Store adjustments with the original invoice so the full history is in one place.
Create your corrected invoice now
If an adjustment means issuing a fresh invoice, open the invoice generator, choose the clean Minimal invoice template, reference the original invoice number in the notes and download your PDF.
Frequently asked questions
What is the main difference between a debit note and a credit note?
A credit note reduces the amount a customer owes on an invoice, while a seller's debit note increases it. Both reference the original invoice instead of replacing it.
Who issues a debit note, the buyer or the seller?
Both conventions exist. In many GST and VAT systems the supplier issues a debit note to charge more, while in traditional commercial practice a buyer may send a debit note to request a credit for returned or faulty goods.
Is a debit note the same as an invoice?
Not quite. A seller's debit note works like a supplementary invoice for an additional amount linked to an earlier invoice. Some businesses simply issue a new invoice instead, which is often acceptable if it references the original.
Does a credit note reduce VAT or GST?
Generally yes. A valid credit note reduces both the net amount and the output tax on the original supply, and the customer reduces their input tax claim to match. Check your local rules for timing and required wording.
Should debit notes and credit notes have their own numbering?
Yes. Most businesses use a separate sequence for each, such as CN-0012 and DN-0004, and always show the original invoice number they adjust.
Can a seller issue a credit note without goods being returned?
Yes. Returns are only one reason. A seller can also issue a credit note for an overcharge, a pricing error, a post-sale discount, a cancelled service or a goodwill gesture after a complaint. The credit note should state the reason, reference the original invoice and, where tax was charged, show the tax being reduced along with the net amount.
Is there a deadline for issuing credit or debit notes under GST?
In India, yes. A credit note generally has to be declared in a return no later than 30 November following the end of the financial year of the supply, or the date the annual return is filed if earlier, and input tax credit on a debit note follows a similar window. Other countries set their own limits, so check your tax authority's current rules.
Can I just refund the customer instead of issuing a credit note?
You still need a document that explains the refund. The credit note records why the amount owed was reduced and adjusts sales and tax; the refund is simply the payment that settles that credit. Refunding money without a credit note leaves the original invoice showing as fully billed, which makes your books, tax return and the customer's records disagree.
How does a buyer record a debit note from a supplier?
A buyer receiving a seller's debit note records the extra cost: debit purchases or the relevant expense account, debit input tax if they can reclaim it, and credit accounts payable for the total. The entry is the mirror image of the seller's. Match it to the original invoice before approving, and query anything that wasn't agreed.
Is a debit memo the same as a debit note?
Often, yes. In the US, debit memo is a common name for a seller's document that increases what a customer owes, which works like a seller's debit note. Banks also use debit memo for charges taken from your account, which is a different thing. Check who issued the document and whether it adds to your balance or asks for a reduction.
Invoice Creator Editorial Team
Guides on invoicing, cash flow and small-business finance from Invoice Creator, operated by Next Software Development Company. Content is reviewed for accuracy against the fields our own invoice generator produces.
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