This paper articulates extant literature that is related to tax planning and firm value with a view to identifying gaps for further extensive empirical consideration. Companies are always looking for means to reduce their corporate tax liability, and this has led to some high-level corporate fraud involving tax evasion in both developed and developing countries. This paper, therefore, presents a review of extant literature on tax planning and firm value.The methodology adopted is a desktop study that is based on deductions from the literature reviewed. The paper identified gaps that require hardcore empirical investigation to reduce the inconsistencies observed in the results of the literature reviewed.