Writing Off a Bad Debt the Correct Way (and What GST Law Actually Allows)

A client stops responding, the invoice ages past any realistic hope of collection, and it's tempting to think of it the way you'd think of a bad debt anywhere else — a loss you can offset. Under GST specifically, that assumption is wrong in an important way.

The fact that surprises people

GST law provides no mechanism to reclaim tax already paid on a bad debt caused by non-payment. The supply happened, the invoice was issued, and GST liability arose at that point — a customer's later failure to pay doesn't retroactively undo the supply. A credit note is only valid for specific statutory reasons: a genuine deficiency in the supply, a return, an overcharge, a discount. "The customer never paid" isn't one of them.

What this means in practice

If you've issued a ₹59,000 invoice, charged and reported the GST on it, and the client simply never pays — you still owe that GST to the government. There's no bad-debt credit note that gets it back, however unfair that feels. The genuine remedies are civil recovery, direct follow-up, and (for income tax purposes, not GST) accounting for the loss as a bad debt on your own books.

What "writing it off" correctly still means

Even without a GST refund mechanism, there's real value in formally marking an invoice as uncollectable rather than leaving it sitting in your receivables indefinitely, quietly overstating what you're actually likely to collect. This is a bookkeeping correction, not a tax reclaim — it stops the invoice from inflating your accounts receivable and party balance figures with money that realistically isn't coming, without pretending the GST situation changed.

The one real exception

If the reason payment never came is a genuine deficiency in what you supplied — not simply non-payment, but a real problem with the goods or service that justifies a value reduction — a proper credit note under the normal rules applies, and GST relief follows from that, not from the non-payment itself.