ACH Return Code R05 indicates that a debit entry was posted to a consumer account without proper authorization.
What causes R05?
The R05 return code occurs when:
- The customer did not authorize the transaction
- Authorization was revoked before the transaction
- The transaction amount differs from what was authorized
How to resolve R05
- . **Review authorization records** - Verify you have proper consent
- . **Contact the customer** - Understand why they claim it's unauthorized
- . **Implement dispute resolution** - Work with the customer to resolve
Prevention tips
- Maintain clear authorization records
- Send transaction confirmations to customers
- Implement proper consent management







