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Inflation
What Kenyan prices are doing, and what that leaves of a return. Every rate on this site is a nominal one — inflation is the figure that turns it into what you can actually buy.
12-month inflation
6.76%
September 2026
Aug 2026: 6.59% · Sep 2025: 4.58%
Annual average
5.44%

The last twelve months against the twelve before them. It moves slowly, and it is the figure the Central Bank's own target is written against.

Since January 2005
Highest: 19.72% Nov 2011
Lowest: 1.85% Apr 2007

261 months on record.

The 12-month rate, 2005 to now
19.72% high 1.85% low
01 Jan 2005 01 Sep 2026
12-month Annual average
What that leaves of a return
Each rate from the comparison, after tax, and then after inflation. A return below the inflation line is not a small gain — it is a loss of purchasing power with a positive number in front of it.
Option After tax After inflation
364-day Treasury bill
Central Bank of Kenya
7.68% 0.86%
182-day Treasury bill
Central Bank of Kenya
7.67% 0.85%
91-day Treasury bill
Central Bank of Kenya
7.65% 0.83%

Divided, not subtracted. Taking inflation off a rate understates what is left, because the shillings you end the year with are themselves worth less — at these levels the difference is small but it is not nothing, and it always flatters. Only rates observed recently enough to still mean something are here; a yield measured eighteen months ago set against this month's inflation is two readings from different worlds.

The last two years, month by month
Month 12-month Annual average
September 2026 6.76% 5.44%
August 2026 6.59% 5.25%
July 2026 6.49% 5.08%
June 2026 6.41% 4.88%
May 2026 6.68% 4.66%
April 2026 5.59% 4.42%
March 2026 4.39% 4.29%
February 2026 4.25% 4.23%
January 2026 4.40% 4.16%
December 2025 4.49% 4.07%
November 2025 4.46% 3.94%
October 2025 4.56% 3.80%
September 2025 4.58% 3.65%
August 2025 4.53% 3.56%
July 2025 4.15% 3.55%
June 2025 3.82% 3.56%
May 2025 3.75% 3.63%
April 2025 4.11% 3.74%
March 2025 3.62% 3.81%
February 2025 3.45% 3.98%
January 2025 3.28% 4.21%
December 2024 2.99% 4.50%
November 2024 2.75% 4.81%
October 2024 2.72% 5.14%
Figures are the Kenya National Bureau of Statistics', as published by the Central Bank of Kenya, and re-read daily. The 12-month rate compares this month's basket of goods with the same month a year ago; the annual average compares the last twelve months with the twelve before them. They answer different questions and are not interchangeable.
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