"The problem is what language was Turbo Tax written in? Some languages do not port well to Linux"
By the looks of it (and looking at the installation), it seems to be CefSharp.... which is a wrapper to use CEF... which is a way to embed Chromium into a desktop app
In other words, it seems to be a glorified web app wrapped with an embedded web browser. It is hard to find something simpler to port to other platforms (web apps being pretty much the definition of platform-independent code these days)
