How to remove wallpaper from behind toilet?

Drain the tank and just remove that

I agree. All you need is to remove the toilet tank not the whole toilet.

Drown it with water or fabric softener and hopefully it will peel off. I am a steamer, so I would steam it off (and remove toilet), but that is just me. Think about how you are going to re wallpaper or paint once the current paper is removed.

Just remove the lid and steam and scrape paper off...........

Drain the toilet by turning off the water supply to it and then flushing. The tank portion (the part your back leans against when sitting) is pretty easy to remove. There are usually just 2 bolts and are accessible under the tank itself. My new toilet even has wing nuts so I don't need to lay down (but I would!) to remove them!

To clarify my answer: It's the BOWL of a toilet that's a pain to remove, not the tank. The bowl is set into your floor with a wax seal that has to be cleaned out (MAJOR yuck!) and replaced to put the bowl back in. You're only taking off the tank section. This way, it's easy and you can do your work and make it look professional and finished.

Keep the bolts and nuts safely aside. The tank is ceramic so don't let it fall! It's rather heavy, maybe 15 poundsish? so have a helper if you're unsure.

Hi, you can leave the bowl, and just remove the tank to get to the wallpaper. Hope this video helps.

https://www.youtube.com/watch?v=W6Slpw5Us6Y

Use a steamer and a long-handled scraper.

The easiest way would be to remove the toilet and then take the wall paper down.

I agree with those recommending to drain and remove the tank, then you can remove the wallpaper and to whatever treatment you plan before re-installing the tank. Plan ahead and you can get it all done an put together in a short while with minimum chaos.