Answer:
If you require that your borrower maintain a deposit account with your bank as a condition of the loan, this disclosure would be applicable. There are a couple of exceptions noted in footnote 45 in 226.18(r). The Official Staff Commentary gives more detail about these exceptions.
Where this definitely comes into play is with a CD-secured loan. But there can be other areas as well. If you require that your auto loan customers maintain a checking account with the bank to qualify, then this box would need to be checked (unless you are paying more than 5% on your checking, in which case I want to bank with you).
First published on BankersOnline.com 5/16/11