Checks from UK banks and others are usually accepted by US banks, but be sure they are drawn in the currency of the nation where the issuing bank is located. When they go through the "process" here, they are credited to the recipient's account at the current exchange rate when processed. I once received a cashiers check from the Bank of Ulster purchased in punts but made out in dollars which could not be processed because of variations in exchange rates. The sender bought it back, cashed it in, then sent me a personal check in punts, which went through the system here with no problem. Similary, checks drawn on US banks should be written in dollars and not the currency of the recipient's country. If you write a lot of checks across currency lines, or checks in large figures, you could probably work out special arrangements with your banker ahead of time.