Board Thread:Versus Debates/@comment-5936871-20160126112547/@comment-1872728-20160129063713

I believe that Rinnegan is not immune to genjutsu. Sasuke was immune to IT because he blocked the IT light with his Susanoo, which was enhanced by his Rinnegan. The Rinnegan has the ability to understand jutsus easier, which I believe can also cancel genjutsus easier than normal people do. This is also why Kakashi and Itachi didn't use genjutsu, because they know it will be less effective than ninjutsu.