「Special dependent deduction」

The captioned topic is very popular in Japan. So, I will show you the article of Sankei Newspaper onDec.1(web page)

『With the special dependent deduction, if a child's (19-22-year-old-student)

annual income is 1.03 million yen or less, 630,000 yen is deducted from the parents' taxable income and 450,000 yen is deducted from the local resident's tax. Conversely, if a child's annual income exceeds 1.03 million yen, the child is required to pay income tax and the parents' deductions are no longer available, resulting in a heavier tax burden for the entire household.

Therefore, under the current system, both parents and children are more likely to be conscious of the 1.03 million yen barrier, which is also leading to students refraining from working.

According to estimates by Daiwa Institute of Research, there are approximately 610,000 students who adjust their working hours in consideration of the 1.03-million-yen barrier. If these students were able to work freely, it is expected that the labor shortage will be alleviated, and personal consumption will be revitalized as take-home pay increases.

Please be noted carefully for the above (How much annual income amount to be revised).