Determine your business structure
We recommend getting an LLC to limit your liability if your will be working as an independent phlebotomist.
Phone with reliable connection
You will be getting assignments using an app on your phone, so get a good data plan with reliable coverage.
You will be driving. A lot. So make sure your car is in order. You don't need anything fancy, just something you can trust.
A regular phlebotomy tray kit with all needed supplies, ice chest along with lab forms is usually enough to get started.