Summary
If you make $ 1,379,832 a year living in Taiwan, you will be taxed $ 170,008. That means that your net pay will be $ 1,209,824 per year, or $ 100,819 per month. Your average tax rate is 12.3% and your marginal tax rate is 21.6%. This marginal tax rate means that your immediate additional income will be taxed at this rate. For instance, an increase of $ 100 in your salary will be taxed $ 21.56, hence, your net pay will only increase by $ 78.44.
Bonus Example
A $ 1,000 bonus will generate an extra $ 784 of net incomes. A $ 5,000 bonus will generate an extra $ 3,922 of net incomes.