When an R10 (Customer Advises Not Authorized) return is received, immediately halt all future ACH debits against that account and flag the bank account record as disputed.
R10 returns require you to validate whether you have a valid authorization on file; if you do, you may re-initiate the entry within 60 days of the settlement date of the returned entry with proper authorization documentation.
For an R29 (Corporate Customer Advises Not Authorized) return on a CCD or CTX entry, the originating business has revoked authorization — contact the business directly to resolve; do not re-initiate without new written authorization.
File the NACHA-required proof of authorization records: written or WEB-channel electronic authorization must be retained for 2 years after revocation.
Distinguish R10/R29 from R07 (Authorization Revoked by Customer) — R07 means the debit authorization was explicitly revoked; re-initiation is not permitted without new authorization, and re-originating constitutes a NACHA rules violation.
Report repeated R10/R29 returns on the same originator to your ODFI for compliance review; high return rates can trigger ODFI remediation or suspension of origination privileges.
Known gotchas
The re-initiation rules differ between return codes and SEC codes — verify the specific re-initiation allowances for your SEC code (PPD, WEB, CCD) before re-originating any returned entry.
R10 and R29 do not carry fee liability for NSF — they are unauthorized-debit returns, meaning the originator may face compliance action separate from the financial return.
NACHA return time frames for R10 and R29 can be up to 60 calendar days from the settlement date, which is significantly longer than standard returns — budget for delayed reconciliation on these codes.
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