This free money market fund calculator Kenya investors can use shows how a Kenyan money market fund grows over time, before and after the 15% withholding tax. Enter a starting deposit, an optional monthly deposit, the quoted annual yield and the number of years, and the money market fund calculator instantly shows your value after tax, how much you deposited, the interest you earned, and the tax taken. It is the honest way to see what an MMF really returns.

Money Market Fund Growth Calculator (Kenya)

Project how a Kenyan money market fund grows, before and after the 15% withholding tax.

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Note: Kenyan money market funds deduct a 15% withholding tax on the interest earned, and that tax is final for individuals. Most fund fact sheets quote a gross (before-tax) yield, so leave the toggle on “before tax” unless you know it is already net. Yields move daily with interest rates, so this is an estimate: check the fund’s current rate before investing.

How to use this money market fund calculator

Enter what you are starting with, then add a monthly deposit if you plan to keep saving. Put in the fund yield you have seen quoted, and use the toggle to say whether that yield is before or after tax. Most fund fact sheets quote a gross, before-tax figure, so leave it on before tax unless you know otherwise. The money market fund calculator then shows your after-tax value, so the number you see is the one you would actually keep.

A worked KSh example

Say you start with KSh 50,000, add KSh 10,000 a month, and the fund quotes 10% a year before tax, over 5 years. The money market fund calculator shows an after-tax value of about KSh 821,000. Of the interest earned, roughly KSh 36,000 goes to the 15% withholding tax, which is why using the after-tax figure matters when you compare funds.

Why the 15% tax matters

Kenyan money market funds deduct a 15% withholding tax on the interest you earn, and for individuals that tax is final. Because most funds advertise a gross yield, the return you actually keep is lower than the headline. A money market fund calculator that shows the after-tax figure lets you compare funds fairly. To pick a fund, see our guides to the best money market funds in Kenya and the current best performing money market funds, and if you are weighing a riskier option, read our special fund vs money market fund comparison.

How yields change

Money market fund yields move daily with interest rates, so the quoted figure is a snapshot, not a fixed rate. When rates fall, MMF yields drift down too. These funds are regulated by the Capital Markets Authority, and you can see how growth builds over more years with our compound interest calculator.

Money market fund calculator Kenya showing growth after tax
Frequently asked questions

Is this money market fund calculator accurate?

The maths is exact for a steady yield, but real MMF yields change daily, so treat the result as an estimate. It applies the 15% withholding tax on interest but assumes the yield you enter holds for the whole period, which real funds will not do precisely.

Should I enter the gross or net yield?

Enter the yield exactly as the fund quotes it and set the toggle to match. Most fund fact sheets quote a gross, before-tax yield, so choose before tax unless the fund clearly states the figure is already net of tax.

Do money market funds ever lose money?

They are low risk and your capital is normally stable, which is why they suit emergency funds and short-term savings. They are not formally guaranteed, but losses are rare. The main variable is the yield, which rises and falls with interest rates.

Disclaimer: This money market fund calculator is for educational and informational purposes only and does not constitute financial advice. Yields vary daily and the figures are estimates. Past performance is not a promise of future results. Always verify a fund current yield on its fact sheet and consider consulting a licensed financial advisor before investing.