Summary
If you make $ 300,599,520 a year living in Hong Kong, you will be taxed $ 51,076,418. That means that your net pay will be $ 249,523,102 per year, or $ 20,793,592 per month. Your average tax rate is 17.0% 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.
Bonus Example
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.