Abstract
In this study, a literature review has been made on the effect of the quality of accounting information on cost analysis processes, one of the important processes of the business. It is aimed to determine the opinions of the professional accountants in the Gaziantep Region on the effect of the quality of accounting information on cost analysis processes. The survey method has been adopted in the related research. The data obtained as a result of the survey were analyzed with the SPSS 24.0 package program. As a result of the study, it is concluded that the quality of the accounting information provided in the subjects of cost control, activity planning, calculation of product cost, competitiveness and facilitation of business processes differs significantly according to the education levels of accounting professionals. It has been concluded that good quality accounting information has positive effects on correct pricing, cost reduction and cost control, which are the basis of cost analysis. It is clear that the sustainability of businesses will be possible with effective cost analysis. Planning of financial activities, calculation of product costs, distribution of general production expenses and budgeting system show that more accurate decisions can be made with the quality of accounting information.