When making a correction (found our own mistake) do we fill out the entire CTR like the first one but with the correction? I do know that I need to use the DCN. Also, can I use the same Filing Name or do I need to change that too?

Thank you in advance for your help!

I believe e-filing requires the CTR be completed in full with the correction. They suggest you rename it so you can show examiners both copies. One of our submitters accidently corrected one and didn't save the old. It was going to take a lot of time to get a copy of the first to prove it had been filed timely.

From page 49 of the Instructions:

9. Corrected or amended reports: A corrected report must be filed whenever errors are discovered in a previously-filed FinCEN CTR; Currency Transaction Report (CTR), FinCEN Form 104; or Currency Transaction Report by Casinos (CTR-C), FinCEN Form 103. Amended reports on FinCEN CTRs, CTRs, and CTR-Cs must be filed whenever additional data about the transactions are discovered. Both corrected and amended reports must be completed in their entirety, with the necessary corrections or amendments made to the data. In both cases box 1b ‚Correct/amend prior report‛ must be checked on the FinCEN CTR. Field 1d must contain the Document Control Number (DCN) or BSA Identifier (BSA ID) assigned to the prior filing. If the FinCEN CTR corrects or amends a CTR or CTR-C, any FinCEN CTR fields not present on the prior filing must be completed by the filer if the data are available. These instructions supersede all prior instructions and guidance on electronic filing of amended or corrected CTRs and CTR-Cs. BSA IDs, which replaced DCNs, are provided in acknowledgement records sent to member financial institutions by the BSA E-Filing System.

The instructions for corrections made by batch filers are in Attachment B of the same document.