What is not a potential penalty for the willful failure to timely file an FBAR?

The correct answer indicates that there is no penalty category that fits the description of "not a potential penalty" for the willful failure to timely file a Foreign Bank and Financial Accounts Report (FBAR). In the context of willful failure to file an FBAR, all the mentioned penalties can potentially apply.

Specifically, failure to file the FBAR can result in severe financial penalties, including a civil penalty of up to 50% of the balance in the foreign account at the time of the violation. Additionally, criminal penalties are also possible, which can include hefty fines and imprisonment for willful violations. The inclusion of all these penalties suggests that there are serious legal repercussions for individuals who do not comply with FBAR filing requirements, emphasizing the importance of compliance among U.S. taxpayers with foreign accounts.

Thus, since all listed options are indeed potential penalties, the response that none of them represent a penalty for the failure to file becomes the accurate choice. This highlights the serious nature of FBAR compliance and the potential consequences of neglecting this requirement.