What happens immediately
When the NACH debit fails on your due date, two things happen: your bank charges a bounce fee (typically ₹300–₹1,000 depending on the bank) and the lender charges their own bounce or penal charge (specified in your loan agreement, often ₹500–₹1,500). These are charged regardless of why the debit failed — insufficient funds, technical issues, or a frozen account all trigger the same fees.
Many lenders re-present the debit automatically — sometimes two or three times within the same month. Each failed re-presentation can trigger another set of bounce charges. If you know the debit is going to fail, transferring funds into the account even a few hours after the initial failure can prevent the re-presentation from also bouncing.
What happens to your credit score
Lenders report payment status to credit bureaus monthly. A single bounce that you resolve quickly — by paying the outstanding EMI plus any charges before the lender's reporting date — may show as "000 DPD" (zero days past due) in that month's report, meaning no visible impact if the lender reports after you've cleared it.
If the payment remains outstanding past the lender's reporting cycle, it appears as "DPD" (Days Past Due) on your credit report — specifically how many days the payment was late. A 30 DPD entry is visible to any future lender checking your report, though a single isolated late payment from an otherwise clean record is generally treated less harshly than a pattern of them.
When it becomes serious
Three consecutive missed payments typically classify your loan as an NPA (Non-Performing Asset) in the lender's books. At that point, the bank begins formal recovery proceedings and the account is flagged across credit bureaus. Recovering from an NPA classification — even after full payment — can affect your credit profile for years.
The sequence: 1 bounce → charges + possible DPD entry. 2–3 bounces → formal notices from the lender, significant credit impact. 90 days without payment → NPA classification. The gap between the first bounce and serious trouble is wider than most people assume — but only if you act quickly after that first bounce.
What to do right away
Pay the outstanding EMI plus any bounce charges as soon as possible — through net banking, IMPS, or a visit to the branch. Contact your lender proactively; lenders distinguish between a borrower who communicates versus one who goes silent. If you can't pay immediately, ask specifically about a short extension rather than letting it age silently.
After paying, check your credit report in 30–45 days to confirm the account shows correctly — that the missed payment isn't being reported as a settlement or write-off, both of which are more damaging than a simple DPD entry.