Do I Have To Remove The Toilet To Tile The Bathroom Floor?

Depends on the type of tile. Ceramic for sure you need to remove the toilet. Installing vinyl you can get away with not removing the toilet by cutting the tiles around it, but then you are asking for trouble if the toilet overflows and water gets under the tile. Make sure you use some silicone caulk around the stool when you are done. To do the job right, you really should remove the toilet, your floor will look alot nicer if you do. You only need to buy a wax ring kit to remove and replace the toilet, less than 10.00 at your local hardware store.