1. Find out the reasons: First, find out the reasons for accounting errors, determine the responsible person and responsible department, and understand the specific situation and degree of errors.

2. Calculation of losses: calculate the overpaid tax, and calculate the specific loss amount for subsequent treatment.

3. Communication with the tax authorities: contact the tax authorities, explain the course of events and the reasons for accounting errors, request the understanding and assistance of the tax authorities, and strive for tax refund or reduction as much as possible.

4. Appeal to the higher authorities: If the tax authorities are unable to provide assistance, they can appeal to the higher authorities for support and help.