Summary
If you make <b>9,720,000 円</b> a year living in <b>Japan</b>, you will be taxed <b> 2,567,528 円</b>. That means that your net pay will be <b>7,152,472 円</b> per year, or <b>596,039 円</b> per month. Your average tax rate is <b>26.4%</b> and your marginal tax rate is <b>27.5%</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>27.48 円</b>, hence, your net pay will only increase by <b>72.52 円</b>.
Bonus Example
A <b>1,000 円</b> bonus will generate an extra <b>725 円</b> of net incomes. A <b>5,000 円</b> bonus will generate an extra <b>3,626 円</b> of net incomes.