Improvements in tau identification and energy scale calibration at DZero

Many high energy physics processes whether from standard model origin or beyond include a $\tau$ lepton in their signatures. $\tau$ lepton signatures can then be of particular importance in many physics analyses such as top quark related measurements as well as Higgs boson or supersymmetry searches. $\tau$ leptons decay inside the detector ($c\tau= 87.1\mu$m), hence they are identified by their decay products: electrons, muons and hadrons. Different physical objects have similar experimental signatures and need to be discriminated from real tau decay. We present the current status and the future plans of $\tau$ reconstruction at the DZero experiment from the identification (using multivariate methods) to the $\tau$ energy scale calibration.