Choosing between a fixed and a variable mortgage rate is one of the most consequential decisions a Kenyan home buyer will make, and it is a decision that is far more urgent than it looks on the surface. With the Central Bank of Kenya’s benchmark rate having swung from a 12-year high of 13% in June 2024 down to 8.75% by early 2026, and standard commercial mortgage rates still sitting in the wide 12-18 % band, the type of rate attached to your home loan can change your monthly repayment by tens of thousands of shillings over the life of the loan. This guide breaks down how repayment can vary by tens of thousands of shillings over the life of the loan. This guide breaks down exactly how fixed and variable mortgage rates work in the Kenyan market, what current data says about the cost of each, and how to decide which one fits your situation.
What Is a Fixed-Rate Mortgage in Kenya?
A fixed-rate mortgage locks your interest rate for an agreed period, or for the full loan term, so your monthly repayment stays the same regardless of what the Central Bank of Kenya (CBK) does with its policy rate. True long-term fixed rates are still uncommon among Kenya’s mainstream commercial mortgages, but two segments of the market now offer genuine fixed pricing:
KMRC can offer such low, stable rates because it refinances primary lenders, banks, and SACCOs, at roughly 5%, passing the discount on to qualifying home buyers. The trade-off across the market generally holds: a fixed rate is usually priced at or above the prevailing variable rate at the time you sign, because the lender is pricing in the risk that CBK rates could rise again before your loan matures.
What Is a Variable-Rate Mortgage in Kenya?
A variable (or floating) rate mortgage moves with the market. Most Kenyan bank mortgages are priced using a reference-rate-plus-margin formula, typically the Central Bank Rate (CBR) OR The Kenya Shilling Overnight Interbank Average (KESONIA) plus a customer-specific premium of roughly 3 to 8 percentage points, depending on your credit profile and the lender’s risk-based pricing model. When the Monetary Policy Committee (MPC) cuts or raises the CBR, your repayment adjusts, usually within one to two pricing cycles.
This is the structure behind most of the standard mortgage rates being advertised in 2026: commercial bank mortgage rates currently span roughly 12% to 18% per annum, with an industry average close to 14.78%, while the most competitively priced standard variable offers sit around 12.07% - 12.12% at the top-tier banks.
Why the Distinction Matters Right Now: Kenya’s Rate-Cutting Cycle
Kenya’s interest rate environment has been unusually volatile over the past few years, which is exactly why the fixed-versus-variable question carries real financial weight today. The CBR climbed to a 12-year high of 13% in June 2024 in response to inflation and currency pressure, then entered a sustained easing cycle; ten consecutive cuts brought it down to 8.75% by February 2026, where the MPC has since held it through its June and August 2026 meetings, citing inflation of around 4.4% that remains comfortably within CBK’s 2.5% - 7.5% target band.
That swing matters because variable-rate borrowers who took loans in 2023 and 2024 absorbed sharp repayment increases as the CBR climbed, and are only now seeing relief as it falls. A buyer signing a variable-rate mortgage in 2026 is entering the market near the bottom of an easing cycle, which can work in their favour if rates hold or fall further, but exposes them again if the cycle reverses. On a KSh 7.2 million loan, a 2-percentage-point rate increase adds roughly KSh 10,000 to the monthly repayment, a meaningful swing for a household budget.
Comparing the Real Cost: A Sample KSh 5 Million Loan
Headline rates only tell part of the story. The table below illustrates indicative monthly repayments on a KSh 5 million mortgage over 25 years at different rate types, based on the reducing-balance method typically used by Kenyan lenders.
|
Loan Type |
Indicative Rate |
Est. Monthly Repayment* |
|
KMRC-backed fixed (affordable housing) |
9.0% – 9.9% |
KSh 42,000 – 44,900 |
|
Most competitive standard variable |
12.07% – 12.12% |
KSh 52,900 – 53,200 |
|
Average standard variable (market) |
14.78% |
KSh 62,800 |
|
Upper-range standard variable |
17% – 18% |
KSh 71,700 – 74,700 |
Who Should Choose a Fixed Rate?
Who Should Choose a Variable Rate?
Beyond the Rate: What Else to Negotiate
The advertised interest rate is only one line item in the true cost of a Kenyan mortgage. Before signing, request a full disclosure of:
Two loans quoted at the same headline rate can carry meaningfully different total costs once these fees are added; always compare the full Annual Percentage Rate (APR), not just the interest rate, across at least three to four lenders before deciding.
A Note on Kenya's Mortgage Market
It is worth keeping the bigger picture in view: Kenya has fewer than 30,000 active mortgages against a population of roughly 55 million, and non-performing mortgage loans reached KSh 46 billion in 2024, up 15.3% year-on-year. This underlines why stress-testing your repayment capacity, ideally at 2 to 3 percentage points above your offer-letter rate, is a prudent step before committing to either rate type, and why working through a SACCO- or KMRC-eligible route is worth exploring if you fall within the income thresholds.
The AYA Real Estate View
Whichever rate type you choose, the decision should follow your income stability, your risk tolerance, and where Kenya sits in its interest rate cycle, not simply the lowest headline number on a bank flyer. AYA Real Estate works with buyers across Westlands, Kilimani, Parklands, Kileleshwa, and satellite towns such as Ruaka and Syokimau to match financing options to the property and the buyer, and can help you think through how a fixed or variable structure fits your specific purchase before you sign an offer letter.
