What is the return code 01?

Asked by: Kelli Rippin  |  Last update: August 6, 2026
Score: 5/5 (43 votes)

The ACH return code R01 signifies Insufficient Funds, meaning an ACH transaction failed because the customer's account lacked enough money to cover the payment. It is the most common return code, representing 40-50% of all returns, and requires the originator to wait for funds or retry, typically up to twice within 30 days.

What is a decline code 01?

A 01 code means that there's a problem related to the issuing bank or account. It could indicate suspected fraud, insufficient funds, or expired card details. Rather than an issue with the account itself, this means there's a problem from the merchant's end.

What is a reject code 01?

01 – Refer to issuer

The issuing bank (Visa, Mastercard, etc.) prevented the transaction.

What is return code C01?

C01 - Incorrect Account Number Correct data entry errors in the account information. Issue a new number to an existing account.

What is the transaction code 01?

Response Code: 01 - Refer to Issuer. The customer's card issuer has indicated there is a problem with the card number. The customer should contact their bank or the customer should use an alternate card. Sometimes this response code can also be due to a transaction being declined by Fraud Protection.

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45 related questions found

What is a 01 rating on a credit report?

The “0” designation means the account is too new and you lack the credit history for it to be rated or it has been approved, but you haven't used it yet. The “1” designation means the account has been paid as agreed upon within 30 days of billing. You should strive for this credit rating with all your accounts.

What sort code is 01?

Find details for the sort code 01-10-01 — assigned to National Westminster Bank PLC in Chatham, and discover Wise for your international money transfer needs.

What is the deposit code?

Deposit codes enable you to categorize types of cash transactions for bank deposit receipts, such as by PayPal or wire transfer. By distinguishing between cash transaction types, you can reconcile cash transactions more efficiently.

What is the merchant advice code 01?

01 - Updated information needed. Check Account Updater if the decline code is 79 or 82.

Why is my bank declining online payments?

Your online payment is likely declined due to incorrect info (card number, CVV, address), insufficient funds/credit, the bank flagging it as fraud (unusual purchase, location, large amount), or an expired/inactive card, but it could also be a temporary hold or daily limit; check details, call your bank, or try another card if it persists. 

What does a return code mean?

ACH return codes are standardized alphanumeric messages used to identify why an Automated Clearing House (ACH) payment failed or was rejected. Every single return code corresponds to a specific reason for the payment failure, such as: Insufficient funds. Invalid account numbers. Authorization issues.

What is the response code 01 on a visa?

This code is a generic response suggesting that the card issuer (the bank or financial institution that issued the credit card) needs to be consulted to understand the specific reason for the decline.

What is the code dishonour 01?

DISHONOUR-01: Unauthorised. Your direct debit authority hasn't been loaded at the payer's bank. DISHONOUR-02: No Account. The account you're trying to collect a payment from doesn't exist.

Can I deposit $20,000 cash in a bank?

Financial institutions are required to report cash deposits of more than $10,000 in compliance with the Federal Bank Secrecy Act. These reporting standards are intended to alert the government to potential crime and fraud, including money laundering and other illegal activity.

Which bank code is 01?

The KCB Bank Code is 01.

Do all banks have a bank code?

Yes. In the U.S., banks use a routing number (also called an ABA number) as their code. This 9-digit number is used for domestic transfers, direct deposits, and wire transfers.

What bank is 09-01?

A sort code like 09-01-28 helps identify the specific bank and branch used for UK-based transfers. In this case: 09 identifies the bank as Santander. 01-28 identifies the exact branch or processing center.

What does 01 mean on a credit report?

The best rating is 1. It means you pay your bills within 30 days of the billing date. Ratings of 1 will help you achieve a strong credit score. Any number higher than 1 will likely hurt your credit score. The worst rating you can receive is 9.

Can I get $50,000 with a 700 credit score?

Yes, you can likely get a $50,000 loan with a 700 credit score, as this falls into the "good" credit range (670-739) that unlocks better rates, but approval also hinges on your income, debt-to-income (DTI) ratio (ideally below 36%), and overall credit history, with lenders looking for stability and repayment ability, so prequalifying with multiple lenders helps compare terms.