1. Open the personal income tax APP with your mobile phone and enter the special additional deduction record for children's education.
2. Find the records that need to be voided or modified from the special additional deduction for children's education, and click the Void or Modify button in the upper right corner.
3. Select void or modify in the pop-up prompt box and confirm the operation.
4. Re-submit other special deduction information for children's education after cancellation or modification.