Kenya Finance CalculatorOctober 2026
Calculators are for planning and estimation only. Verify final tax, payroll, loan, investment or property figures with the relevant institution or adviser.
Banking / T-Bill returns by amount
T-Bill Returns on KSh 100,000 in Kenya (2026)
A KSh 100,000 91-day Treasury Bill earns about KSh 1,815 after 15% tax. A 364-day bill earns about KSh 7,021. Rates are the CBK auction averages as of 5 November 2026.
Figures last updated 5 November 2026. Based on CBK average auction rates.
KSh 100,000 face value: returns by security
Face value is the amount you receive at maturity. Rates as of 5 November 2026.
| Security | Rate | You pay now | Gross interest | Tax | Net interest |
|---|---|---|---|---|---|
| 91-day T-Bill 15% withholding tax | 8.75% | KSh 97,865 | KSh 2,135 | −KSh 320 | KSh 1,815 |
| 182-day T-Bill 15% withholding tax | 8.845% | KSh 95,776 | KSh 4,224 | −KSh 634 | KSh 3,590 |
| 364-day T-Bill 15% withholding tax | 9.0282% | KSh 91,740 | KSh 8,260 | −KSh 1,239 | KSh 7,021 |
| Infrastructure Bond (IFB) Tax-free, 1-year illustration | 12.82% | KSh 88,637 | KSh 11,363 | KSh 0 | KSh 11,363 |
| Fixed Coupon Bond (FXD) 15% tax, 1-year illustration | 12.87% | KSh 88,598 | KSh 11,402 | −KSh 1,710 | KSh 9,692 |
Estimates using CBK average auction rates, not a guaranteed return. Bond rates are from the 5 October 2026 auction and use a one-year simplification; real bonds pay coupons over several years. See the T-Bill calculator or the T-Bills vs bonds guide.
Quick Answers
KSh 100,000 T-Bill FAQs
How much do I earn on a KSh 100,000 91-day T-Bill in Kenya?
At the 8.75% average rate, a KSh 100,000 91-day T-Bill costs about KSh 97,865 today. It matures at KSh 100,000, giving KSh 2,135 gross interest, or about KSh 1,815 after 15% withholding tax.
Which earns more on KSh 100,000: a 91-day or a 364-day T-Bill?
Net interest is about KSh 1,815 over 91 days and KSh 7,021 over 364 days, but your money is locked up longer for the 364-day bill. The 182-day bill earns about KSh 3,590.
Is interest on KSh 100,000 in an infrastructure bond taxed?
No. Interest on infrastructure bonds is tax-free. As a one-year illustration at 12.82%, KSh 100,000 would earn about KSh 11,363. Real IFBs run for several years, so check the specific issue.
Why does the price I pay differ from the face value?
T-Bills are sold at a discount. You pay less than the face value now and receive the full face value at maturity; the difference is your interest. Figures here are estimates from the average auction rate, and your actual rate depends on the auction.