Bonus / 13th Cheque Tax Impact Calculator
See exactly how much of your hard-earned bonus actually reaches your pocket after tax deductions.
| Comparison Item | Normal Month (KES) | Month with Bonus (KES) |
|---|---|---|
| Gross Cash Income | 0.00 | 0.00 |
| NSSF Deduction | 0.00 | 0.00 |
| SHIF Deduction (2.75%) | 0.00 | 0.00 |
| Housing Levy (1.5%) | 0.00 | 0.00 |
| PAYE (Income Tax) | 0.00 | 0.00 |
| Net Cash Take-Home | 0.00 | 0.00 |
How Bonus / 13th Cheque Tax Is Calculated
A bonus or 13th cheque is added to your normal monthly gross pay for that month, which can push part of your income into a higher PAYE band and increase NSSF, SHIF and Housing Levy where applicable. The real "cost" of tax on your bonus is the difference between your normal net pay and your net pay in the month you receive the bonus — not simply your top marginal tax rate applied to the bonus amount.
Is a bonus taxed at a different rate than salary?
No separate "bonus tax rate" exists in Kenya — a bonus is simply added to that month's gross pay and taxed through the same progressive PAYE bands, which is why a large bonus can be taxed at a higher effective rate than your regular salary.
This calculator gives an estimate for guidance only and is not tax advice — confirm final figures with KRA or a licensed tax advisor.