Summary
If you make KSh 4,180,032 a year living in Kenya, you will be taxed KSh 1,188,730. That means that your net pay will be KSh 2,991,302 per year, or KSh 249,275 per month. Your average tax rate is 28.4% and your marginal tax rate is 30.0%. This marginal tax rate means that your immediate additional income will be taxed at this rate. For instance, an increase of KSh 100 in your salary will be taxed KSh 30, hence, your net pay will only increase by KSh 70.
Bonus Example
A KSh 1,000 bonus will generate an extra KSh 700 of net incomes. A KSh 5,000 bonus will generate an extra KSh 3,500 of net incomes.