The study examined the problems of poor quality (the predominance of a formal nature) of financial and economic justification (feasibility study) of bills. At first we consider the regulatory requirements for the justifications. Then on the analysis of 200 bills of economic and fiscal topics introduced in the State Duma in 2015–2016, we find the prevalence of poor-quality justifications, and no association with the approval of bills. It is noted that pre-parliamentary discussion procedures (required for the Government of Russia), with all their shortcomings, have a positive effect on the quality of justifications. The solution to the problem of weakness of the financial and economic justification is thus seen in the formation of common requirements and extension of the procedures for pre-parliamentary discussions to cover all subjects of legislative initiative.