I've never used tape on my reels but then also I only started to use braid 3 years ago.
I presume if the spool has a hole or little button then no tape will be required?
Jose Wejebe has a youtube video showing how to do a 5 or 6 wrap around the arbor, uni knot. It works, there's no slippage and avoids the need for tape or mono backing. Folks don't like the idea of using straight braid but I find it cheaper than a new spool. Better yet I just use mono.