ACH NOC Codes
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Solutions > ACH Processing > FAQ > ACH NOC Codes
The ACH network provides Notifications of Change (NOCs) when something about a bank account has changed. For example, if you submit a payment for which the name on the bank account has changed, a NOC code might be returned. Some processors charge an extra fee for ACH NOCs.

Code Reason Description
C01 Incorrect bank account number Bank account number incorrect or formatted incorrectly
C02 Incorrect transit/routing number Once valid transit/routing number must be changed
C03 Incorrect transit/routing number and bank account number Once valid transit/routing number must be changed and causes a change to bank account number structure
C04 Bank account name change Customer has changed name or ODFI submitted name incorrectly
C05 Incorrect payment code Entry posted to demand account should contain savings payment codes or vice versa
C06 Incorrect bank account number and transit code Bank account number must be changed and payment code should indicate posting to another account type (demand/savings)
C07 Incorrect transit/routing number, bank account number and payment code Changes required in three fields indicated
C09 Incorrect individual ID number Individual's ID number is incorrect
C10 Incorrect company name Company name is no longer valid and should be changed.
C11 Incorrect company identification Company ID is no longer valid and should be changed
C12 Incorrect company name and company ID Both the company name and company id are no longer valid and must be changed

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Symmetric Technologies, Inc. is an agent of Clearent LLC, a registered MSP of First National Bank of St. Louis.