Free tool · no sign-up
Debit note generator
Raise the amount due on an invoice that was billed short, with the original invoice, reason and extra tax. Free, no sign-up, and it stays in your browser.
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How it works
- 1Click and type on the pageYour details, the party, items and terms go straight onto the A4 document.
- 2GST works itself outCGST + SGST or IGST from the two states, totals, round-off and the amount in words.
- 3Download, print or WhatsAppSave a one-page A4 PDF, print it, or send a summary on WhatsApp.
Runs in your browser. Nothing you type or upload is sent to Cashflow OS.
What a debit note is
Under GST, a supplier issues a debit note when the taxable value or tax on an invoice was less than it should have been. Typical reasons: a rate increase agreed after billing, extra quantity supplied, freight or packing charges left off, or tax charged at a lower rate by mistake. It adds to what the buyer owes. In everyday trade, buyers also send "debit notes" to suppliers for returns; that is a commercial document, not the GST debit note. See credit and debit notes in GST.
How to fill it in
- Your details and the buyer's, matching the original invoice.
- Debit note number from its own series and the date.
- Original invoice number and date.
- Reason for the increase.
- The extra value only, with HSN and GST rate. The tool splits tax into CGST and SGST or IGST as on the invoice.
- Print, save as PDF, or share the summary on WhatsApp.
Example: freight left off the bill
You supplied goods to a buyer in another state and forgot to charge freight of ₹1,250, which forms part of the value of the goods. Charged at the goods' rate of 18%:
- Extra taxable value: ₹1,250
- IGST 18%: ₹225
- Debit note total: ₹1,475
Read freight and delivery charges in GST invoices on how such charges are taxed.
Tax and returns
The extra tax on a debit note is payable in the period in which you issue it, and the note is reported in your GST return with the original invoice details. The buyer can claim the extra credit once it appears in their records. Check current rules on the GST portal or with your CA; this is general information, not tax advice.
Tips
- Issue the debit note as soon as the shortfall is found, not at year end.
- Tell the buyer before you send it; an unexpected debit note is often disputed.
- Post it against the original bill so the party's statement makes sense.
See the debit note format for a sample. Cashflow OS can post debit note vouchers into TallyPrime from the phone through the connector.
Questions people ask
When should I issue a debit note instead of a new invoice?
When the extra amount relates to a supply you have already invoiced, such as a rate difference. A fresh supply gets its own tax invoice.
Is a debit note the opposite of a credit note?
Yes. A credit note reduces the invoice value; a debit note increases it.
Can a buyer issue a debit note?
Buyers often send one for returns as a commercial document. Under GST, the document that changes tax is issued by the supplier: a credit note for returns.
Do I need the original invoice number?
Yes. Always refer to the invoice being adjusted.
General information for Indian businesses, not tax or legal advice. GST rates and rules change by notification — check cbic-gst.gov.in or ask your CA before you rely on a figure.
