The study focused on the ease of doing business as it affects private investment in Nigeria, using a time series data sourced from the Central Bank of Nigeria statistical Bulletin. The Autoregressive Distributed Lag (ARDL) model bound testing approach was employed for the study and the overall results confirmed that there exist a long run and short relationship among the variable considered. The study warned that there is need to relax monetary toolkit to allow private investment contributes to economic growth by giving access to loanable funds and providing regulatory framework and tax incentive to better enhance their performance.