Group 1 - The article discusses the tax deduction for continuing education expenses, allowing a fixed deduction of 3600 yuan in the year the relevant certificate is obtained [3]. - Taxpayers can verify if their obtained certificates are deductible by accessing the "State Council Client" WeChat mini-program [4]. - The article provides a step-by-step guide for correcting errors in reporting continuing education deductions, emphasizing the importance of updating annual tax returns if mistakes are made [6][10]. Group 2 - The first step in correcting an error involves voiding the special additional deduction information through the personal income tax app [6]. - The second step requires taxpayers to correct their annual tax return, which is crucial if the corresponding year’s return has already been filed [8][10]. - Taxpayers are advised to check for any changes in their annual tax settlement results after making corrections to ensure their rights are protected [10].