Invoices & documents Debit notes

Debit note format under GST

Under GST, a debit note is issued by the supplier when the invoice charged less value or tax than it should have. In everyday trade the term is also used by buyers for purchase returns, which is a different, commercial document.

Updated 2026-11-054 min read

Who this is for

GST-registered suppliers
Accountants
Billing staff
Buyers handling purchase returns
Distributors and traders

On this page 12

Two meanings of debit note

The confusion is common, so settle it first.

Point	GST debit note	Buyer's debit note
Issued by	Supplier	Buyer
Why	Value or tax on invoice was too low	Goods returned, shortage, rate claim
Effect on GST	Increases supplier's output tax	None by itself; supplier's credit note does the GST work
Reported in	Supplier's GSTR-1	Not reported as a GST document

This guide covers the GST debit note. If you are a buyer returning goods, your supplier issues a credit note; your debit note simply informs them and records the claim in your books.

When a supplier issues a debit note

A rate was revised upwards and the buyer agreed to pay the difference.
Freight, packing or loading that should have been on the invoice was left out.
The wrong, lower GST rate was charged.
Quantity supplied was more than invoiced and the buyer accepted it.

The legal basis is section 34 of the CGST Act. This is general information, not tax advice.

Fields to show

Field	Example
Document name	Debit Note
Supplier name, address, GSTIN	Narmada Agro Inputs, Indore, 23ABCDE1234F1Z2
Serial number and date	DN/25-26/0007, 20-11-2025
Recipient name, address, GSTIN	Kisan Seva Kendra, Dewas, 23PQRSX5678K1Z5
Original invoice number(s) and date(s)	INV/25-26/0480 dated 05-11-2025
Additional taxable value, rate, tax	₹6,000; CGST and SGST as applicable
Reason	Freight to Dewas omitted from invoice
Signature	Authorised signatory

Numbering follows the invoice rule: up to 16 characters, consecutive, unique in the financial year. See invoice numbering rules.

Worked example: freight left off the bill

Narmada Agro billed sprayers worth ₹80,000 plus GST, but the agreed freight of ₹6,000 to the buyer's shop was missed. Freight charged by the supplier as part of the supply is part of the taxable value and takes the rate of the goods in most cases. See freight and delivery charges in GST invoices.

Line	Amount
Additional taxable value	₹6,000
CGST at 9% (illustrative)	₹540
SGST at 9% (illustrative)	₹540
Debit note total	₹7,080

The supplier reports the debit note in GSTR-1 for November and pays the extra ₹1,080. The buyer can claim ₹1,080 as input tax credit once it appears in their GSTR-2B and other conditions are met.

Time limits

A supplier declares the debit note in the return for the month it is issued. For the buyer, input tax credit on a debit note is linked to the financial year of the debit note itself, with the usual deadline of 30 November after that year or the annual return date, whichever is earlier. Confirm on cbic-gst.gov.in, as these dates have been amended before.

Debit note or a fresh invoice?

If the extra amount is a correction of the original supply, use a debit note referring to that invoice. If it is a new supply, such as extra goods ordered later, issue a fresh tax invoice. Using debit notes for new sales confuses both the buyer's credit and your sales register.

A simple test helps: would the buyer have paid this amount on the original invoice if it had been billed correctly? If yes, it is a correction and belongs on a debit note. If the buyer is agreeing to something new, such as an additional consignment or a separate service like installation booked later, it belongs on a new invoice with its own date of supply. Getting this right keeps your sales register by month accurate and stops the buyer's books from showing the same goods twice.

Buyer-side tips for purchase returns

Send your return document with the goods, listing invoice number, items and reason.
Ask the supplier for the GST credit note promptly, so your credit reversal and their output reduction happen in the same period.
Do not deduct the return from payment without a matching credit note in hand; it creates an unexplained difference in the ledger.

Doing this with Tally and Cashflow OS

Debit notes are vouchers in TallyPrime. Through Cashflow OS, an authorised user can create a debit note from the phone or web app; it is written into Tally through the connector, GST is worked out from the item and the party's state, and Tally validates the entry. Outstanding and party statements update after the sync, so the buyer can be sent a fresh statement on WhatsApp.

Avoid these

Common mistakes

MistakeUsing a debit note for a new sale
Do this instead
Issue a fresh tax invoice for extra goods or new services; debit notes are only for correcting an earlier invoice.
MistakeTreating the buyer's return note as a GST document
Do this instead
For returns, the supplier issues a GST credit note; the buyer's debit note only records the claim.
MistakeDeducting a return from payment without a credit note
Do this instead
Ask the supplier for the credit note first, or the ledger shows an unexplained difference.
MistakeLeaving out the original invoice reference
Do this instead
List each original invoice number and date, with the amount added against each.

Keep handy

Checklist

Debit note format under GST — 8 checks. Tick them as you go.

Document titled Debit Note with your name, address and GSTIN
Separate DN series, consecutive and unique for the year
Buyer's name, address and GSTIN
Original invoice numbers and dates
Additional taxable value, rate and tax
Plain reason and signature
Reported in GSTR-1 for the month of issue
IRN obtained if you are under e-invoicing

In Cashflow OS

How Cashflow OS helps

Cashflow OS puts your TallyPrime books on every phone in the team. Where it fits this topic:

Debit notes from the phone

An authorised user creates a debit note from the phone or web; it is written into Tally through the connector and Tally validates it.

See Create Tally vouchers from your phone

Fresh statement after the sync

Outstanding and the party statement update after sync, so the buyer can be sent a new statement on WhatsApp.

See Party ledger statements

Questions people ask

Is a debit note the same as a supplementary invoice?

In practice it serves the same purpose. Under GST, the supplier's debit note is the document used to add value or tax to an earlier invoice.

Does a debit note need an IRN?

If the supplier is under e-invoicing, debit notes are reported to the IRP like invoices and credit notes.

Can a debit note cover several invoices?

Yes, list each invoice it relates to with the amount added against each.

Is freight left off an invoice taxable?

Freight charged by the supplier as part of the supply is generally part of the taxable value and usually takes the rate of the goods. Add it through a debit note.

Does the buyer need to accept a debit note?

The buyer can claim credit only once it appears in their GSTR-2B and other conditions are met. Inform them so they record it in the same period.

Can a debit note be issued in a later year?

A debit note can be issued later, but the buyer's credit is tied to the debit note's financial year and its deadline. Check the current rules before issuing.

Where does a debit note go in GSTR-1?

In the credit and debit notes table, note by note for registered buyers, and it is netted into the HSN summary.

Should the debit note use the same tax type as the invoice?

Yes. If the invoice carried IGST, the debit note also carries IGST; if CGST and SGST, the same.

This page is general information for Indian businesses, not tax, legal or financial advice. Rules and rates change — check the official portals or your CA before acting.