QuickBooks Mac install consists of the QuickBooks Mac program which is usually put in the Applications folder (/Applications). You can drag that to the trash to uninstall it.
QuickBooks does create files in other locations when it is launched. The most obvious are the company files. It also creates Preference files (~/Library/Preferences holds those) and application support files (~/Library/Application Support/QuickBooks)
Help! I just want to unistall everything and start over! I have a bunch of accounts still there that are just 'inactive' that clutter my account....stuff not properly classified - frustrating. I'd rather start from scratch. I put it in trash can but it is still there! How do I get rid of it totally on my mac? Thanks in advance.