A search for charged Higgs bosons in decays of $\mathrm{H}^{\scriptscriptstyle \pm}\rightarrow \tau^{\pm}\nu_{\tau}$ is presented both with mass larger than the top quark in the ${\rm pp} \rightarrow \mathrm{H}^{\pm}{\rm tb}$ production process, and lighter than the top quark in the ${\rm pp} \rightarrow \mathrm{H}^{\pm}\mathrm{W}^{\mp}{\rm b\bar{b}}$ channel. The fully hadronic final state is considered. The search is performed using the 2016 data collected by CMS at \sqrt{s}=13~\mathrm{TeV}, and that correspond to a total integrated luminosity of 12.9~\text{fb}^{\scriptscriptstyle -1}. The observation agrees with the standard model prediction. Limits on the charged Higgs boson cross section times branching fraction are set for the mass range of 180~\mathrm{GeV} < m_{\mathrm{H}^{\pm}} < 3~\mathrm{TeV}, while limits on the branching fraction of top quark to charged Higgs boson are set in the mass range of 80 to 160~\text{GeV}, and results are interpreted in the context of two-Higgs-doublet models.

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