The allowable deduction and the PAYE you save.
Allowable deduction
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PAYE saved per month
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PAYE saved per year
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Pension money the taxman never gets to touch
Saving into a registered pension or provident scheme in Kenya does two jobs at once. It builds your retirement pot, and it shrinks the slice of your salary that PAYE is calculated on. This tool answers the practical question a lot of employees never quite work out: of the amount I pay in each month, how much is actually deductible, and what does that save me in tax right now.
The mechanism matters, so it is worth being precise. A pension contribution is an allowable deduction, which means it comes off your taxable pay before the PAYE bands are applied. That is different from personal relief, which is a flat credit knocked off the tax bill at the end. Because a deduction works at the top of your income, its value depends on your marginal rate. A shilling deducted for someone in the 30 percent band is worth more in tax saved than the same shilling for someone in the 10 percent band.
The three numbers that compete for the lowest
Kenya does not let you deduct an unlimited contribution. The allowable figure is the smallest of three: your actual contribution, 30 percent of your pensionable pay, and a hard monthly ceiling. The ceiling this calculator applies is KES 30,000 a month, equivalent to KES 360,000 a year, raised by recent Finance Act changes. Whichever of these three is smallest is the deduction you get.
Putting KES 15,000 a month through the rules
Say you earn KES 120,000 of pensionable pay and contribute KES 15,000. The three competing figures are your actual KES 15,000, thirty percent of pay which is KES 36,000, and the KES 30,000 ceiling. The smallest is your own KES 15,000, so the whole contribution is deductible with room to spare. The table walks the saving using the rates this calculator applies.
| Step | Monthly figure |
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The contribution sits entirely in the 30 percent band, so KES 15,000 deducted saves 30 percent of that, which is KES 4,500 a month, or KES 54,000 over the year. The chart shows the three competing limits side by side, with the bar that wins.
Where extra contributions stop helping your tax bill
The edge case to understand is the cap. If you pushed the same KES 120,000 earner up to a KES 40,000 contribution, the deductible amount would stop at KES 30,000, because that ceiling is the smallest of the three. The extra KES 10,000 still lands in your pension and still grows, but it earns no further PAYE relief that month. That is not a reason to stop saving, it is a reason to know the point where the tax incentive flattens out. For very high earners, the 30 percent of pay test can bind before the cash cap, so check which limit is actually doing the work in your case.
This calculator is built for salaried employees weighing how much to route into an occupational or personal pension, and for anyone deciding whether a salary sacrifice arrangement is worth setting up. The figures here follow the rates this calculator applies, and Kenya has changed pension limits more than once recently, so verify the current cap and percentage with the Kenya Revenue Authority before you commit a contribution level.
Does my employer contribution count toward the cap?
Generally the combined contributions to a registered scheme are tested against the limit, so an employer top-up can use up headroom that you might otherwise have claimed yourself. Confirm how your specific scheme reports contributions to the KRA, since the treatment of employer versus employee portions can vary by arrangement.
Is this the same relief as the NSSF deduction on my payslip?
No. NSSF is a separate statutory contribution with its own tiers and ceiling. This deduction is for voluntary or occupational pension saving on top of NSSF, and the KES 30,000 monthly cap modelled here is measured against that pension saving, not your NSSF line.
What happens to the tax break when I eventually draw the pension?
Contributions get relief going in, but withdrawals and lump sums can be taxable coming out, under a separate set of pension withdrawal bands administered by the KRA. The relief is best thought of as deferral plus growth, not a permanent escape from tax. This tool only measures the relief on the way in.