The tax service office of the tax authority is in the daily collection and management，Accept a large amount of third-party information provided by the taxpayer，And at the tax scene，The front desk staff of the tax authority can only determine the authenticity of the business through a single form of audit，Taxpayers take advantage of loopholes in business operations，Falsify relevant supporting documents，To achieve the purpose of tax evasion，Therefore, there are greater risks of law enforcement and tax loss in tax handling business，At present, it is more reflected that the various tax risks involved in housing transactions and demolition compensation business are larger。The third-party verification system can incorporate personal housing information inquiry and state-owned land housing collection compensation agreement into the third-party verification system, improve the efficiency and quality of tax handling, and avoid the risk of law enforcement and tax loss。Further strengthen the quality of information sharing, improve the efficiency of tax handling, improve the quality of tax handling, avoid law enforcement risks, and reduce the risk of tax loss。