Tax Assessment System Based On Data Warehouse Design

China’s tax system is not perfect, and a lower level of tax compliance of taxpayers degrees, resulting in the loss of tax revenue is quite serious. The tax assessment is the authenticity and accuracy of tax declaration of taxpayers to make qualitative and quantitative judgments, it has become an important part of the work of the tax administration. Along with the tax revenue business development and application of information technology, China’s tax system gradually realized the centralized model, resulting in a large number of business data, How to integrate data, analysis of utilization and in-depth excavation, to find hidden information, to obtain data on the inner link, has become an important information work. But the traditional Tax assessment system can’t meet the current requirements, in order to improve the quality and efficiency of tax assessment, the two aspects of the data warehouse architecture and the tax assessment model perfected, and combination with the A Province Local Tax Bureau tax assessment business needs, the design of the new tax assessment system based on data warehouse.The main content of this article is from the tax assessment data warehouse build and Tax Assessment model building description of the tax assessment system based on data warehouse design. Firstly, in the data warehouse and data mining based on the theory discussed tax assessment data warehouse architecture design, model design and ETL design; then according to the tax assessment business needs, elaborated tax assessment system function design; final tax assessment model in-depth study, the use of data mining classification algorithms, and build a tax assessment decision tree classification model tax assessment Naive Bayes classification model, and to evaluate the accuracy of the model.Tax assessment system design and development is completed, after trial operation, has achieved the anticipated effect, significantly improve the prediction accuracy. But the system also exist problems to be solved, at the end of the article, the application effect of the system and the need to improve the defects were analyzed.