Aijaz Hussain Malik

Summary: A GST-registered supplier cannot issue a credit note or cancel a tax invoice merely because the buyer has failed to make payment. Section 34 of the CGST Act, 2017 permits credit notes only in specified situations such as return of goods, deficiency in supply, or excess taxable value or tax charged, and non-payment is not one of them. Instead, suppliers should use the GST portal’s “Communication Between Taxpayers” facility to formally notify the defaulting recipient by providing the GSTIN, invoice details, and remarks regarding the unpaid amount. Under Section 16(2) read with Rule 37 of the CGST Rules, 2017, if the recipient fails to pay the supplier within 180 days from the invoice date, the Input Tax Credit (ITC) availed must be reversed with interest at 18% per annum. The recipient may re-avail the ITC after making payment. Where the recipient fails to reverse ITC, the department may initiate proceedings under Sections 73 or 74/74A.
A question comes up often enough at my desk, usually from a small trader or a contractor, sitting across the table with a mix of frustration and confusion on his face: “Sir, I delivered the goods, I raised the invoice, I even paid the tax on it — and the buyer still hasn’t paid me a single rupee. Can I at least cancel the invoice or issue a credit note so my books look right?”
The honest answer, every single time, is no. The GST Act does not allow it. And it’s worth explaining why, in plain language, because this misunderstanding costs people real money and real anxiety.
Why a credit note or invoice amendment won’t work here:
Section 34 of the CGST Act, 2017 tells us exactly when a supplier is allowed to issue a credit note — when goods are returned, when there’s a deficiency in goods or services, or when the taxable value or tax charged in the original invoice was more than what was actually due. Non-payment by the buyer is simply not on that list. A credit note reduces your output tax liability, and the law is careful about when that door opens. It doesn’t open just because someone hasn’t paid you. So if you’re tempted to quietly adjust the invoice to make the non-payment disappear from your books, please don’t — it isn’t provided for, and it can create bigger problems than the one you started with.
So what can you actually do?
There is a genuine, lawful remedy, and it’s built right into the GST portal.
Log in to your GST account, go to **Services → User Services → Communication Between Taxpayers**, and click on **Compose**. Here you fill in the recipient’s GSTIN, the invoice details against which payment hasn’t come in, and a clear note in the remarks explaining the non-payment. Once you submit it, this communication shows up on the recipient’s own dashboard every time they log in. It’s on record, it’s visible to them, and it’s visible to the department if it’s ever needed later.
Why this matters more than it looks:
Here’s the part most people don’t realise: under GST, the buyer’s right to claim Input Tax Credit (ITC) on your invoice is conditional. Section 16(2) of the Act lays out the conditions for claiming ITC, and it carries a second proviso that most laymen have never heard of, but every trader should know:
*”…where a recipient fails to pay to the supplier of goods or services… the amount towards the value of supply along with the tax payable thereon within a period of one hundred and eighty days from the date of issue of invoice by the supplier, an amount equal to the input tax credit availed by the recipient shall be added to his output tax liability, along with interest thereon…”*
In plain words: if the buyer hasn’t paid you within 180 days of the invoice date, the law says the ITC they claimed on that invoice must be reversed and added back to their tax liability, along with interest under Section 50 (currently 18% per annum). Rule 37 of the CGST Rules, 2017 lays down the exact manner of this reversal.
The logic behind this is simple and, honestly, fair: the whole ITC chain in GST runs on the idea that credit flows once value and tax have genuinely moved from buyer to seller. If the buyer never pays, that chain is broken, and the credit sitting with them was never really earned.
Rule 37 of the GST Rules mandates that if a registered person avails Input Tax Credit (ITC) but fails to pay their supplier the invoice value (and tax) within 180 days, they must reverse the proportionate ITC. This reversal is done in FORM GSTR-3B along with applicable interest.
Key Provisions of Rule 37
180-Day Rule: ITC must be reversed proportionally if the supplier is not paid within 180 days of the invoice date.
Interest: Interest at 18% per annum is applicable from the date of credit utilization until the reversal.
Re-availment: ITC can be re-availed once the payment is made, without the standard time limitations.
Exceptions: This rule does not apply to RCM supplies, supplies without consideration (Schedule I), or additions to value under Section 15(2)(b).
When it reaches my table
If the recipient still doesn’t reverse this ITC on their own, the supplier can bring it to the notice of the recipient’s jurisdictional tax officer. As an officer, I am then empowered under Section 73 (for cases without fraud) or Section 74/74A (where suppression or fraud is involved) to issue a Show Cause Notice to the recipient, directing reversal of the wrongly retained ITC along with interest.
My advice to every supplier remains the same: don’t try to erase a bad debt through a credit note. Document it, flag it on the portal, and let the law do what it’s designed to do.
Until then, my advice to every supplier remains the same: don’t try to erase a bad debt through a credit note. Document it, flag it on the portal, and let the law do what it’s designed to do.
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(The author is JKAS Officer presently posted as State Taxes Officer Circle-C, Srinagar and can be reached at Circleckashmir@gmail.com).
