Hello dear, I am glad to serve you. How to modify: 1. Open the personal income tax app, click Login/Register in the personal center to log in to your account; 2. Then click on the function below Click on the tax processing option in the column and select corrected declaration and invalidated declaration; 3. Under Uncompleted/Completed, find the declaration information you need to modify and click to enter the declaration details page; 4. Finally, on the declaration record details page, Click the correction button in the lower right corner to enter the correction; 5. If you cannot enter the correction, it means that there are too many visitors currently, and you can perform the correction operation again at other time periods