Summary
If you make <b>24,120,000 円</b> a year living in <b>Japan</b>, you will be taxed <b> 7,963,038 円</b>. That means that your net pay will be <b>16,156,962 円</b> per year, or <b>1,346,414 円</b> per month. Your average tax rate is <b>33.0%</b> and your marginal tax rate is <b>38.4%</b>. This marginal tax rate means that your immediate additional income will be taxed at this rate. For instance, an increase of <b>100 円</b> in your salary will be taxed <b>38.43 円</b>, hence, your net pay will only increase by <b>61.57 円</b>.
Bonus Example
A <b>1,000 円</b> bonus will generate an extra <b>616 円</b> of net incomes. A <b>5,000 円</b> bonus will generate an extra <b>3,079 円</b> of net incomes.