A Money Market Fund (MMF) is a pooled investment that holds low-risk, short-term debt — mostly Kenyan Treasury bills, short-dated government bonds, and fixed deposits with commercial banks. You buy units in the fund with KES; the fund manager invests the pool; you earn a share of the daily interest proportional to your balance.
MMFs in Kenya are regulated by the Capital Markets Authority (CMA). They must publish a daily yield, cap concentration risk, and hold assets in a separate custodian account — your money is never on the fund manager's balance sheet. Most banks, insurers and standalone fund managers in Kenya run at least one MMF, which is why the market has grown to dozens of competing funds. You can see all of them with today's yields on the MMF interest rates today page.
What does a money market fund invest in?
- Treasury bills — short-term government debt sold at a discount through weekly CBK auctions. This is usually the largest slice of a Kenyan MMF.
- Short-dated government bonds — bonds with a short time left to maturity, which behave like predictable cash instruments.
- Bank fixed and call deposits — placements with commercial banks, spread across several banks to limit concentration.
- Near-cash instruments — commercial paper and repos, typically a small share.
The CMA caps how much of the fund can sit with any single issuer, so no one default can sink the pool. Because everything in the portfolio is short-term, the fund's yield moves up and down with Kenya's prevailing interest rates within weeks.
How returns are paid
Most Kenyan MMFs accrue interest daily and credit it monthly into your account (or your unit balance). Yields quoted are annualised — e.g. a 10% yield means you would earn roughly 10% over 12 months if the rate held constant. Interest compounds: credited income starts earning its own interest, which is why an MMF you leave untouched grows faster than the headline rate suggests.
Kenya levies a 15% withholding tax on interest. Reputable fund managers quote both figures: the gross yield (before tax) and the net yield (what you actually keep). On realtimerates we default to the net yield so comparisons are apples-to-apples — our withholding tax guide explains the mechanics.
Why MMFs usually beat bank savings
- Banks pay you ~5-7% on savings because they make their spread lending your money at 14-18%.
- MMFs pass almost all of the T-bill yield through to you, minus a small management fee (typically 0.5-2% p.a.).
- T-bill yields in Kenya have sat between 10-16% through 2023-2026, so MMF net yields have consistently beaten bank savings by 3-5 percentage points.
What does it cost to invest in an MMF?
The main cost is the management fee, typically 0.5-2% per year, deducted inside the published yield — the net yield you see is already after fees and tax. Many funds in Kenya have low entry minimums: an initial buy-in commonly between KES 100 and KES 5,000 depending on the manager, with top-ups from as little as KES 100 via M-PESA or bank transfer. Some managers charge a small account-keeping or statement fee — always download the fund's fee schedule from their website or the CMA before committing.
How to open an MMF account in Kenya
Opening an account with a Kenyan fund manager is mostly paperwork and takes a few days to activate:
- 1. Pick a fund. Compare net yields, manager reputation and redemption speed — start with the MMF rankings page, then read the full investing guide for the selection criteria in depth.
- 2. Prepare your KYC documents. You will need a national ID or passport, your KRA PIN, a passport photo, and the bank account or M-PESA number you want payouts sent to.
- 3. Apply. Most managers accept applications through their app or online portal; some still use a printable form emailed or delivered to their offices. Joint, trust and corporate accounts need extra documents.
- 4. Fund the account. Send at least the minimum initial amount via M-PESA paybill or bank transfer. Units are allocated at the next dealing price.
- 5. Track it. The manager publishes the daily yield and sends periodic statements; you can compare your fund against every other Kenyan MMF any time on our rates page.
How to choose the right fund
- Consistent net yield, not a one-week spike. Look at the yield across months, not the single best week. Our performance overview shows manager averages and spread.
- Size and track record. Larger, older funds have survived rate cycles; a brand-new fund offering an outlier yield is carrying risk you can't see.
- Redemption speed. Ask how long withdrawals actually take — 2-4 business days is normal, and some managers are faster.
- Fee transparency. The manager should publish the fee schedule and both gross and net yields. If only the gross yield is advertised, assume the gap is bigger than it looks.
- CMA licence. Confirm the fund and manager are licensed by checking the CMA's approved list.
What are the risks?
- Not guaranteed — there is no KDIC-style protection like bank deposits (which insure balances up to KES 500,000). Your capital is at risk if the manager mismanages (rare but possible).
- Yield is not fixed. If CBK cuts the policy rate or T-bill yields fall, your MMF yield will follow within weeks.
- Redemptions typically settle in 2-4 business days. Don't park cash you need tomorrow morning.
Who should use one?
MMFs are best for emergency funds, short-term savings, and cash you haven't allocated yet. They are not a replacement for long-term equity investing — expected real returns (after inflation) are positive but modest. A common Kenyan setup is an MMF for the emergency fund plus a fixed deposit or bonds for money with a longer, known horizon; our MMF vs fixed deposit comparison breaks down the trade-off.
MMF questions, answered
How much do I need to start an MMF in Kenya? Most funds accept an initial investment of KES 100-5,000, and monthly top-ups from KES 100. Check the specific fund's minimum before applying.
Can I withdraw my money anytime? Yes — MMFs are open-ended. You place a redemption request any business day and funds typically reach your M-PESA or bank account in 2-4 business days with no penalty.
Which money market fund has the highest yield today? The ranking changes week to week as funds reprice with T-bill auctions. The current sorted list of every tracked Kenyan MMF is on the interest rates today page.
Is an MMF better than a savings account? For money you won't need same-day, almost always: net MMF yields have run 3-5 percentage points above typical bank savings rates, at the cost of a short settlement delay and no deposit insurance.