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Accountants cannot tell when a NEFT, RTGS or IMPS credit should appear in the bank or which reference to search for, so customer payments look missing.
NEFT settles in half-hourly batches, RTGS settles individually for ₹2 lakh and above, and IMPS is instant; each leaves a rail tag and a reference in the narration.
Ask payers for the rail and UTR or IMPS reference at the time of payment, and read the rail prefix and reference from each bank narration.
Each incoming bank transfer is matched to its invoice by reference, and timing gaps are explained by the rail rather than treated as missing money.
NEFT settles in half-hourly batches. RTGS settles each payment of ₹2 lakh or more on its own, in real time. IMPS is instant. All three now run round the clock, every day, so the practical differences are the amount each allows, how fast the credit lands and the reference each one leaves in your bank statement.
How do the three rails compare?
| NEFT | RTGS | IMPS | |
|---|---|---|---|
| Run by | RBI | RBI | NPCI |
| Minimum | No RBI minimum | ₹2 lakh | No RBI minimum |
| Maximum | No RBI maximum; banks may cap | No RBI maximum | ₹5 lakh per transaction (bank limits may be lower) |
| Speed | Half-hourly batches | Real time, one by one | Instant |
| Availability | 24x7 since 16 December 2019 | 24x7 since 14 December 2020 | 24x7 |
| Typical use | Invoice payments, salaries, gateway settlements | Large supplier or property payments | Small urgent transfers |
| Reference in your statement | UTR, typically 16 characters, starting with the sending bank’s code | UTR, typically 22 characters | IMPS reference, usually 12 digits |
| When the credit shows | After the next batch, usually within about 30 minutes | Usually within minutes | Within seconds |
Many payment gateways settle to merchants by NEFT, so gateway settlement credits usually carry a NEFT UTR.
Which rail should a customer use to pay a large invoice?
For ₹2 lakh and above, RTGS is the natural choice: it settles that payment alone and the receiving bank must credit it quickly. NEFT also works for large amounts and is common in practice. IMPS is capped at ₹5 lakh, so it suits smaller invoices.
Whichever rail is used, ask the customer to send you the UTR or IMPS reference along with the invoice number. That one line saves a search later.
Why did my NEFT credit arrive hours after the sender’s debit while IMPS was instant?
Three common reasons:
- Batching. NEFT settles every half hour, so a payment just after one batch waits for the next.
- Bank posting. The receiving bank may post the credit to your statement some time after the batch settles.
- Sender’s queue. The sender’s bank may hold a payment for checks before releasing it, especially large or first-time payments.
IMPS skips batching, which is why it lands in seconds. If a NEFT credit is missing after several hours, ask the sender for the UTR and give it to your bank.
Worked example: three supplier payments on one Tuesday
A distributor in Pune receives three payments from customers on Tuesday:
| Payment | Rail | Sent at | Likely credit in the statement |
|---|---|---|---|
| ₹1,85,000 | NEFT | 11:10 am | After the 11:30 am batch |
| ₹4,50,000 | RTGS | 11:12 am | Within a few minutes, around 11:15 am |
| ₹12,500 | IMPS | 11:14 am | Within seconds, 11:14 am |
Total received: ₹1,85,000 + ₹4,50,000 + ₹12,500 = ₹6,47,500.
At 11:20 am, the statement shows ₹4,62,500 (RTGS plus IMPS). That is not a shortfall. The NEFT ₹1,85,000 is still waiting for its batch. By noon all three are in, and each narration carries a rail tag such as “NEFT”, “RTGS” or “IMPS” plus its reference.
How do I read the rail from the narration?
Most Indian banks start the narration with the rail, then the reference, then the sender’s name. For example “NEFT/HDFCN52026101412345678/ACME TRADERS” or “IMPS/627814512345/RAVI K”. Formats differ between banks, so learn your own bank’s pattern.
What to read next
- Next in this series: order ID, payment ID, RRN, UTR and ARN: which reference number is which?
- Reading narrations at scale: bank statement narration patterns in India
- The reference behind NEFT and RTGS: what is a UTR number?
- When matching becomes daily work: payment gateway reconciliation
Payment-gateway settlement reconciliation is on the TransactIG roadmap.