Methods and precautions for canceling tax collectors and chief financial officers: 1. Clear the handling position. If a unit wants to change the person in charge of finance, it needs to go to the local competent state taxation bureau and local taxation bureau to make changes. Both tax bureaus must apply for changes, otherwise there will be no favorable problem basis. 2. Fill in the change application. When we arrived at the tax authorities, we went to the window staff of the tax service hall to inform the application matters, asked for the corresponding forms, and then filled out an application form for tax change, which was approved by the tax authorities. 3. Provide identification. First, the tax authorities should provide the identity certificates of relevant personnel, such as the copies of the identity cards of the person in charge of financial affairs and legal persons, so that the tax authorities can use them for identity authentication. 4. Provide employment documents. We need to provide the tax authorities with the appointment documents of the new CFO, usually in the form of appointment notice or letter of appointment, indicating that the unit has re-appointed the new CFO. 5. Vocational qualification certificate. The person in charge of the company's finance must have the corresponding qualifications, that is to say, the original accounting qualification certificate and so on, and provide the corresponding copies. 6. Inform management. Usually, tax authorities have a special administrator system, and each enterprise has its own special administrator. When our financial controller changes, we should inform the special administrator at the first time so as to know the situation.