My experience with the US or BZ dollars is yes, they will accept it, but they seemed kind of troubled by it. I asked a local and they told me they have to go through all kinds of forms and paperwork to fill out with the US dollars. So I tried using BZ as much as I could. There is a conversion place there..........couldn't tell you what it was called, but in SP, you will find it. Yes, they do take US. It gets confusing trying to convert in your head after a few glasses of rum punch.