If you make $ 1,200,000 a year living in Hong Kong, you will be taxed $ 178,500. That means that your net pay will be $ 1,021,500 per year, or $ 85,125 per month. Your average tax rate is 14.9% and your marginal tax rate is 17.0%. 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 $ 17, hence, your net pay will only increase by $ 83.
A $ 1,000 bonus will generate an extra $ 830 of net incomes. A $ 5,000 bonus will generate an extra $ 4,150 of net incomes.