1. Log in to the online electronic tax bureau first, and complete real-name registration system information collection for the new financial controller, or operate the tax service hall online. 2. Then enter the "tax-related matters handling" interface through the real-name tax collector; 3. Click "Change Tax Registration" and select "Change of Financial Controller", and the system will automatically jump to the information filling page; 4. Fill in the information such as name, telephone number and ID number in turn according to the system prompt, then confirm whether the same content has not been deleted before and after the change, and finally click "Save"; 5. Next, upload the attachment materials. The new copy of the CFO's ID card can only be uploaded after being stamped with the official seal, otherwise it will not be approved; 6. Click "Submit" after uploading and wait for approval.