is it generally illegal to bring foreign currency into the country? in SASS Wire Saloon Posted 5 hours ago 4 hours ago, Marshal Mo Hare, SASS #45984 said: Europe wants to do away with the500€ note because it’s too easy y to smuggle a lot of currency that way. Drug smugglers pay about a 50€premium for 500s. The U.S. did away with the $500 bill for this reason years ago. Now some in D.C. are talking about getting rid of the $100. Of course the ultimate goal is to get rid of cash altogether and go digital.