For FBAR? There's an amnesty program in place which was introduced during the summer of 2014, which is better than then fines possible under the voluntary disclosure program. See http://www.forbes.com/sites/robertwood/2014/06/18/irs-announ... . That reduced the outrage some.

Before then, http://www.reuters.com/article/us-usa-taxes-foreign-idUSTRE7... reports that after 26 months of work, and at one time with a likely penalty of $172,000, the final penalty was $25,000 total. Does that count as "come across"?

Even without paying the fine, http://www.thelocal.se/20120306/39522 reports "while Pamela may no longer be facing a seven-figure penalty, she's already racked up a bill of $40,000 in accountants' and lawyers' fees." Most of the cases I've heard of (the Reuters piece includes more) are of people who paid penalties under the voluntary disclosure program or had to spend a lot on accountant fees to get things straightened out.

And there's still the stress of worrying if a minor mistake out of ignorance when I send the information to my accountant might still end up with huge penalties in the future.