Summary
If you make 18,179,976 元 a year living in the region of Shanghai, China, you will be taxed 7,968,215 元. That means that your net pay will be 10,211,761 元 per year, or 850,980 元 per month. Your average tax rate is 43.8% and your marginal tax rate is 45.0%. This marginal tax rate means that your immediate additional income will be taxed at this rate. For instance, an increase of 100 元 in your salary will be taxed 45 元, hence, your net pay will only increase by 55 元.
Bonus Example
A 1,000 元 bonus will generate an extra 550 元 of net incomes. A 5,000 元 bonus will generate an extra 2,750 元 of net incomes.