Current snapshot: MMF vs Treasury Bill
| Feature | Money Market Fund | Treasury Bill |
|---|---|---|
| Dated benchmark | Leading gross yield 11.11% in the secondary comparison checked 29 Oct 2026 | Accepted-bid rates: 8.7478% / 8.8591% / 9.0267% in the CBK result dated 26 Oct 2026 |
| Minimum | Varies by fund; check the provider's current terms | KSh50,000 face value for a non-competitive bid |
| Time structure | Open-ended | 91, 182 or 364 days |
| Rate behaviour | Published yield varies with the portfolio and market | Auction pricing determines the discount and maturity proceeds |
| Access | Provider-specific redemption timeline | Designed to be held to a fixed maturity |
| Structure | CMA-regulated collective investment scheme when properly licensed | Government of Kenya security issued through CBK |
Rates are dated, not promises. The MMF figure is a secondary comparison benchmark and should be checked against the fund manager's own current factsheet. CBK auction results are the primary source for Treasury Bills.
Why the percentages are not apples to apples
An MMF reports a variable annual yield. CMA explains that collective investment scheme performance fluctuates and that MMF yield is calculated daily. A Treasury Bill is sold below face value and redeemed at face value on its maturity date. The auction rate helps determine the price you pay; it is not a monthly interest credit.
KSh100,000 worked example
MMF illustration: KSh100,000 × 11.11% = KSh11,110 gross annual mathematical growth if that yield stayed unchanged for a full year. It is an illustration, not a forecast.
Treasury Bill illustration: CBK's 26 October result published prices per KSh100 of face value. A KSh100,000 face-value bid therefore implies:
| Tenor | CBK price per KSh100 | Illustrative settlement | Gross discount to face value |
|---|---|---|---|
| 91 days | 97.8656 | KSh97,865.60 | KSh2,134.40 |
| 182 days | 95.7695 | KSh95,769.50 | KSh4,230.50 |
| 364 days | 91.7415 | KSh91,741.50 | KSh8,258.50 |
Calculated from CBK's published price per KSh100. Figures are before tax, fees or rounding differences. Your DhowCSD payment instruction is the controlling amount.
Choose by the job the money must do
An MMF may fit better when…
- you want to add smaller amounts regularly;
- your starting amount is below the T-Bill minimum;
- you need an open-ended structure and have checked the provider's actual withdrawal timeline.
A Treasury Bill may fit better when…
- you can match the money to a 91, 182 or 364-day maturity;
- you meet the KSh50,000 face-value minimum;
- you want direct access to a short-term Government of Kenya security through DhowCSD.
For an emergency fund
Access comes first. Do not lock away money you may need before maturity. An MMF can be more flexible, but “open-ended” does not mean every provider pays instantly. Keep the first layer of emergency cash genuinely accessible and read our Kenya emergency-fund guide.
Check these before deciding
- MMF: current factsheet date, gross or net yield, management fees, withholding tax treatment, minimums and withdrawal time.
- T-Bill: current auction notice, face value, settlement price, maturity date, payment deadline and tax treatment.
- Both: whether the time horizon matches the goal and whether you have enough liquid cash outside the investment.
Related AMKA guides
- Kenya MMF rates dataset and source dates
- MMF withdrawal times in Kenya
- MMF fees explained
- MMF tax guide
- KSh50,000 T-Bill minimum explained
Sources and as-of notes
- Central Bank of Kenya — auction results dated 26 Oct 2026 ↗
- Central Bank of Kenya — Treasury Bill structure and DhowCSD guidance ↗
- Capital Markets Authority — Collective Investment Schemes ↗
- Serrari — secondary Kenya MMF comparison checked 29 Oct 2026 ↗
- AMKA methodology · Data status