  Results on the $H\to\tau\tau$ measurements performed by the ATLAS and CMS
collaborations with the pp collision data collected at the LHC at $\sqrt{s}=$7
and 8 TeV are presented. These include a test of CP invariance in the VBF Higgs
boson production. Experimental challenges for the test of the CP invariance in
the $H\to\tau\tau$ decays are also reviewed.
