Frank26
Question "Will there be taxes? 37% on short term - 20% on long term?"
Yeah, that's about right, somewhere in that ball park. Ask a professional because I certainly don't know the exact tax code...
Question "We had currency for a year or more and we decided to buy more, will we still have to pay 40%?"
Yes, every time you buy whatever you buy, your receipt verifies your time frame. That's why your receipt is so important. If you're ever audited you need to prove your time frame.