1: What are Treasury Bills and how do they work in Kenya?
Treasury Bills (T-Bills) in Kenya are short-term debt instruments issued by the Central Bank of Kenya (CBK) on behalf of the government. They are used to raise money for short-term government expenditure and operate under a discounted pricing model.
When you buy a Treasury Bill, you do not earn periodic interest. Instead, you purchase it at a discount, and the government pays you the full face value upon maturity. The difference between the purchase price and the face value is your return, making this a unique way of investing in Treasury Bills in Kenya.
Example:
If a 91-day T-Bill has a face value of KSh 100,000 and you buy it for KSh 97,500, your return at maturity is KSh 2,500.
FAQ 2: How do I buy Treasury Bills in Kenya as an individual?
To buy Treasury Bills in Kenya, follow these steps:
- Open a CDS account with the Central Bank of Kenya through a commercial bank. This account is free and used to hold your government securities electronically. You can find more details on the CBK’s DhowCSD portal.
- Fill out the application form, indicating the bill’s tenor (91, 182, or 364 days), the amount you wish to invest, and the rate you are bidding (either competitive or non-competitive).
- Submit the bid through your commercial bank before the weekly auction deadline (usually Thursday by 2:00 PM).
- If successful, make payment by 2:00 PM the following Monday.
- At maturity, the face value is deposited directly to your bank account.
For more guidance on Treasury Bills in Kenya, visit serrarigroup.com.
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2: What are Treasury Bills in Kenya and how do they work?

Treasury Bills (T-Bills) in Kenya are short-term government securities issued by the Central Bank of Kenya (CBK) on behalf of the Government of Kenya to raise money for short-term public financing needs. They are among the safest investment instruments available in the country, backed by the full faith of the government.
T-Bills are offered in three tenors:
- 91-day (3-month)
- 182-day (6-month)
- 364-day (1-year)
These bills are sold at a discounted price and redeemed at face value upon maturity. For example, if you purchase a 91-day T-Bill with a face value of KSh 100,000 for KSh 95,000, you will receive KSh 100,000 at the end of the 91 days. The KSh 5,000 difference is your investment return.
3: What is the minimum amount required to invest in Kenyan Treasury Bills?
The minimum amount to invest in Treasury Bills in Kenya is KSh 100,000. Beyond this, investors can increase their bids in multiples of KSh 50,000. This applies to all tenors—91-day, 182-day, and 364-day bills.
4: What is the difference between Treasury Bills and Treasury Bonds in Kenya?
The primary difference between Treasury Bills and Bonds Kenya are:
Feature | Treasury Bills | Treasury Bonds |
Tenure | Short-term (91, 182, 364 days) | Long-term (2 to 30 years) |
Interest Payment | Discounted; no periodic interest | Pays semi-annual interest (coupon) |
Investment Type | Ideal for short-term cash parking | Suitable for long-term wealth building |
Return Model | Buy at discount, redeem at face value | Earn interest over time + face value |
So, Treasury Bills are typically for investors who want quick, safe returns over a few months, while bonds suit those with longer horizons. This highlights the key distinctions between Treasury Bills and Bonds in Kenya.
5: Are Treasury Bills in Kenya a safe investment?
Yes, Treasury Bills in Kenya are considered one of the safest investments available. They are backed by the Government of Kenya, making the risk of default extremely low. Other safety features include:
- Regulated and issued by the Central Bank of Kenya.
- Held in secure CDS accounts in your name.
- Redemption is guaranteed at maturity.
However, like all investments, T-Bills Kenya carry a few considerations:
- Liquidity risk: They are not easily tradable before maturity.
- Inflation risk: If inflation is higher than your return, your real returns could be negative.
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6: Are Treasury Bills in Kenya taxed?
Yes, Treasury Bills in Kenya are subject to withholding tax. The interest earned from T-Bills is classified as investment income and is taxed at a final withholding tax rate of 15% for resident individuals and institutions. This covers Treasury Bills interest rates in Kenya from a tax perspective.
This means the Kenya Revenue Authority (KRA) automatically deducts the tax before you receive your returns. For instance, if your gross interest is KSh 10,000, you’ll receive:
Net interest = Gross interest × (1 – Tax rate)
Net interest = 10,000 × (1 – 0.15) = KSh 8,500
You do not need to declare this income in your annual tax returns since the tax is final, unless you’re a business or institution required to consolidate income sources.
7: How are Treasury Bills different from Fixed Deposits in Kenya?
Here’s a breakdown of key differences:
Feature | Treasury Bills | Fixed Deposit Accounts |
Issuer | Central Bank of Kenya (CBK) | Commercial banks |
Risk | Virtually risk-free (government-backed) | Varies by bank |
Interest Type | Discounted upfront | Simple or compound interest over time |
Liquidity | Not easily liquidated before maturity | Can be terminated early with penalties |
Taxation | 15% withholding tax | 15% withholding tax |
Key Insight: Treasury Bills are more suitable for conservative investors looking for government-guaranteed security, while Fixed Deposits can offer more flexible maturity terms and sometimes higher rates for longer terms.
8: Can I reinvest the proceeds from a maturing Treasury Bill?
Yes, reinvestment is possible and quite common when investing in Treasury Bills in Kenya. When your Treasury Bill matures, you can use the proceeds (principal + interest) to purchase a new T-Bill. This is often referred to as rolling over the investment.
Example Strategy – Continuous Reinvestment:
If you invest KSh 100,000 in a 91-day T-Bill and earn a return of 9% per annum, your quarterly gain is:
Interest (Quarterly) = Principal × (Rate × Days / 365)
Interest = 100,000 × (0.09 × 91 / 365) ≈ KSh 2,242
You can then reinvest KSh 102,242 into a new 91-day T-Bill. This strategy compounds your returns over time, increasing your effective annual yield.
9: How do I calculate the effective annual yield on a Treasury Bill?
The Effective Annual Yield (EAY) for Kenya Treasury Bills rates considers compounding by annualizing the return. The formula is:
EAY = [(Face Value / Purchase Price) ^ (365 / Days to Maturity)] – 1
Example:
Purchase price: KSh 95,000
Face value (what you’ll be paid): KSh 100,000
Maturity: 182 days
EAY = [(100,000 / 95,000) ^ (365 / 182)] – 1
EAY ≈ (1.05263 ^ 2.0055) – 1 ≈ 1.108 – 1 = 0.108 or 10.8%
This is your annualized return accounting for compounding and helps understand Treasury Bills interest rates in Kenya.
10: Can I invest in Treasury Bills through my Sacco or Cooperative Society?

Yes, many Saccos and cooperative societies in Kenya invest in Treasury Bills either directly or through licensed investment partners. If you’re a member, you can benefit in two ways:
- Indirect Investment: Your Sacco pools members’ funds and invests in T-Bills to earn higher returns than regular bank interest. These earnings are then distributed as dividends or rebates.
- Facilitated Direct Investment: Some larger Saccos help members access the CBK T-Bill auction by acting as custodians or nominees, assisting with registration on the Central Securities Depository (CSD) platform.
Always verify if your Sacco is registered with the SASRA (Sacco Societies Regulatory Authority) and ensure transparency about returns and fees.
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