>I have a box of foreign money at home which I use every time I am abroad. I bet most people have something like it. If I were to trust you on this, I'd have to

>I have a box of foreign money at home which I use every time I am abroad. I bet most people have something like it. If I were to trust you on this, I'd have to record the price of that currency with every cup of coffee in every airport I buy. In practice nobody has done that, ever. I'd say that's safe. This is not true.In the US there is a tax exemption for small denomination purchases in foreign currency's(I think $200) [1]. I can't find a source right now... *Edit updating citation: User icebraining cited this source in this discussion. 1. https://www.law.cornell.edu/uscode/text/26/988 https://www.law.cornell.edu/uscode/text/26/988