This seems like a simple question, but I'm not 100% sure on the answer.

Scenario:
$9,000 Cash Deposit into Joint Account (Owner A and Owner B); cash deposit was conducted by Owner A (Owner B was not present).
$2,000 Cash Deposit into Single Account (Owner A); cash deposit was conducted by Owner A.

Do we include Owner B on the CTR? They only benefited from $9,000.

Thanks.

Yes, for the 9k because they are joint on the account and A handled more than 10k.

Once you include cash transactions on a CTR, you must provide a Part I for each identified conductor of the cash transactions and each person on whose behalf the transactions were completed, regardless of the amount of individual transactions included in the CTR. In this question, Owner B was a person on whose behalf the $9K cash deposit was made, so Owner B gets a Part I of their own with item 2c checked.