Treasury bill rates in Kenya
The latest interest rates on Government of Kenya Treasury bills from the auction of 22 October 2026, the Central Bank Rate, and what you would earn after tax.
Auction of 22 October 2026
| Bill | Average rate | Offered (KES m) | Bids (KES m) | Subscription | Accepted (KES m) |
|---|---|---|---|---|---|
| 91-day | 8.7478% | 8,000 | 14,336.63 | 179.2% Over | 14,334.18 |
| 182-day | 8.8591% | 10,000 | 7,693.14 | 76.9% Under | 7,685.02 |
| 364-day | 9.0267% | 10,000 | 6,801.35 | 68.0% Under | 6,773.91 |
Figures as of 22 October 2026 · Source: CBK Treasury bill results, issues dated 26 October 2026
Real return after inflation
Inflation was 6.8% in September 2026. A 364-day bill at 9.03% earns about 7.67% after the 15% tax, so its real return is roughly 0.9% a year.
T-bill return calculator
Uses the Central Bank of Kenya's formula: price per KES 100 = 100 ÷ (1 + rate × days ÷ 365). You pay the price now and receive the face value at maturity; the difference is your interest, taxed at 15%. Buy through the CBK's DhowCSD platform, your bank or a stockbroker.
Common questions
How do I buy Treasury bills in Kenya?
Open an account on the Central Bank of Kenya's DhowCSD platform (web or app) with your ID, KRA PIN and a bank account, then place a bid in the weekly auction. You can also buy through your bank or a stockbroker.
Are Treasury bill earnings taxed?
Yes. Interest on Treasury bills is taxed at 15%, deducted automatically.
What is the Central Bank Rate?
It is the rate the Central Bank of Kenya sets to guide interest rates in the economy. Banks use it as a reference for their lending rates.