In bill cost estimate system, a bill imposing fiscal burden is previously estimated the costs accompanied with. Bill cost estimates have not been actively utilized until the 16th National Assembly, although it had been introduced in the National Assembly Law revised in 1973. However, since 17th National Assembly, this system has started to being utilized.
 

This research analyzes 1,628 cases attached with cost estimates out of 7,489 cases which have been submitted to 17th National Assembly for four years. As results, cases attached cost estimates have been continuously increased reaching to 33.7% in 2007 and the total estimated amount was 1,170 trillion won from 740 cost estimate cases except for abnormal or missing cases.

NABO, in charge of Cost Estimate from 17th National Assembly, executed 500 cost estimates out of 611 cases including expenditure estimates. Among 500 cases, 286 have been attached to bills submitted by the Members of National Assembly, and 86 cost estimates have been used in review report of Counsels.

On the other hand, NABO has conducted a survey on cost estimate service. 63.4% of Members of National Assembly has experienced cost estimate service provided by NABO. Members of National Assembly request NABO cost estimate mainly due to expertise and difficulties of bill cost estimate, and lack of time.

As cost estimates have not been fully applied yet in the stage committee, system reform would be necessary. For example, committee report should include cost estimates and statements for not attaching cost estimate should be minimized. Lastly, in the long term, developing the cost estimate system is important to establish fiscal principles through baseline projection, scorekeeping system of estimated costs.