In order to do it full-time, the income you get from Amazon FBA should be enough for your monthly expense. I do it full-time, and I know a lot of sellers who do so as well. It’s definitely a viable option if you want to quit your day job and work on Amazon full time. The great thing about Amazon is that there are always new opportunities cropping up, so you’ll never get bored. Plus, with the right systems in place, you can make a healthy income from Amazon FBA even if you only work part-time.