How to Buy Treasury Bills in Kenya 2026

Kenya made government securities accessible to regular people years before most African countries even tried. The normal Treasury bill route is through the Central Bank of Kenya (CBK), DhowCSD, Treasury Mobile Direct, or a bank nominee. M-Akiba is different: it is a mobile-traded government infrastructure bond with a much lower entry point when an issue or reopen is available.

But the process is not as intuitive as opening a savings account. There are auctions, bid types, tenor options, minimums, and tax implications. This guide covers all of it, with rates checked against CBK auction results available on June 17, 2026.

Source check, June 17, 2026: This guide was refreshed against CBK Treasury bill guidance, the latest CBK June 2026 T-bill auction notice reviewed during this pass, CBK auction rules, KRA withholding tax guidance, NSE M-Akiba materials, and the 2025 National Treasury Budget Policy Statement. Treat the rate figures below as a snapshot, not investment advice.

What are Treasury Bills?

Treasury Bills are short-term government securities issued by the Central Bank of Kenya (CBK) on behalf of the National Treasury. When you buy a T-Bill, you're lending money to the Kenyan government for a fixed period. They pay you back with interest.

Kenya offers three tenors:

• 91-day: matures in roughly 3 months. Lowest rate, most liquid.
• 182-day: matures in roughly 6 months.
• 364-day: matures in roughly 12 months. Highest rate.

Like Nigerian T-Bills, they're sold at a discount. You pay less than face value upfront and receive the full amount at maturity. The difference between what you paid and what you receive is your return.

Kenya T-Bill rates in 2026

These were the weighted average interest rates of accepted bids in the CBK result for the 15 June 2026 issues reviewed for this update. Rates change weekly, so check the current CBK auction result before comparing T-bills with money market funds, bank deposits, or bond issues.

Buying through CBK auctions

The CBK offers T-Bill auctions every week. Auction notices state the bid closure time, payment deadline, issue numbers, and the minimum face value for that auction. Here's how to participate:

Step 1: Open a CDS account

You need an active CSD/CDS account for direct government securities investing. CBK now routes investor activity through DhowCSD and related channels; some investors still use banks, investment banks, or stockbrokers as nominees. Keep your national ID or passport, KRA PIN, and bank details consistent across the account and payment channel.

Step 2: Check the auction calendar

The CBK publishes auction calendars, notices, and results on its website. Each auction notice lists the amount on offer, the tenors available, the bid closure time, payment date, and the latest minimum-bid rule.

Step 3: Submit your bid

You can bid through DhowCSD, Treasury Mobile Direct where enabled, your bank, or another authorized nominee. Always check the current notice: the latest June 2026 notice reviewed here stated Ksh 50,000 minimum face value for non-competitive bids and Ksh 2,000,000 for competitive bids. Some older CBK guidance still references Ksh 100,000, so the auction notice should win.

Two bid types exist:

• Competitive: you state the yield you want. If your bid is above the cut-off rate, it can be rejected.
• Non-competitive: you accept the weighted average rate from the auction. This is usually the simpler retail option. The June 2026 notice reviewed here capped non-competitive bids at Ksh 50 million per investor account per tenor.

Step 4: Get allotted

After the auction, CBK publishes the results. Successful direct investors get payment details through DhowCSD or the relevant channel and must pay by the stated deadline, usually by RTGS or the payment route specified in the notice.

Step 5: Maturity

At maturity, the full face value is credited to your bank account automatically. No action required.

Buying through M-Akiba

M-Akiba changed the game for retail investors in Kenya, but it should not be confused with ordinary weekly T-bills. It is a mobile-traded Government of Kenya retail infrastructure bond. NSE describes the entry point as Ksh 3,000, with interest paid every six months and trading through the mobile channel during market hours.

To use M-Akiba when an issue or reopen is available, follow the official mobile channel instructions and confirm the current offer terms. You will need identity and mobile-money details that match the product requirements.

The M-Akiba coupon or yield is set by the specific bond offer, not by the weekly T-bill auction. It is still one of Africa's most accessible government securities ideas, but use it as a bond comparison, not as a substitute for checking the current CBK T-bill auction.

Limitations: M-Akiba availability depends on specific government bond issues or reopens. The National Treasury's 2025 Budget Policy Statement says the Government has been prioritizing a re-engineering of the M-Akiba process and integration with the newer central securities depository system.

Infrastructure bonds: the tax-free option

Kenya issues infrastructure bonds (IFBs) to fund roads, energy projects, and other public infrastructure. The big draw? Interest on infrastructure bonds is completely exempt from income tax.

This is a major advantage for anyone comparing after-tax returns. A 14% tax-free infrastructure bond gives you the same after-tax income as roughly a 16.5% taxable investment if the alternative is subject to 15% withholding tax. The bonds typically have longer tenors and can be traded on the secondary market, but price and liquidity can move before maturity.

Infrastructure bonds aren't always available. The government issues them periodically, and they tend to be heavily oversubscribed because of the tax benefit. When one is announced, move quickly.

Withholding tax on T-Bill interest

Regular T-Bill interest in Kenya is commonly treated as qualifying interest subject to 15% withholding tax for resident individual investors. KRA describes qualifying interest from the Central Bank of Kenya as WHT-at-source income. Confirm your own tax position if you are a company, pension scheme, non-resident investor, or exempt person.

Quick example on a KES 1,000,000 investment at 15% for 364 days:

• Gross interest: approximately KES 150,000
• WHT (15%): KES 22,500
• Net interest: approximately KES 127,500

The effective net return drops to about 12.75% in this simplified example. Current market rates may be lower or higher than 15%, so always calculate from the latest CBK auction result and your tax status.

T-Bills vs savings accounts vs money market funds

For most Kenyans, a combination works best. Keep your emergency fund in a liquid account or money market fund for access. Use T-bills for dated, medium-term cash goals where you can wait for maturity. Compare infrastructure bonds separately because their after-tax return can be attractive, but the tenor is longer.

Sources Reviewed

Sources reviewed on June 17, 2026:

• CBK Financial Markets: Treasury Bills - T-bill definition, 91/182/364-day tenors, discount mechanics, weekly auctions, minimum wording, and 15% WHT example.
• CBK Treasury Bill results dated 15 June 2026 - current accepted average rates, DhowCSD/Treasury Mobile Direct payment notes, non-competitive cap, and minimum face values in the reviewed auction notice.
• CBK Auction Rules and Guidelines - competitive and non-competitive bid treatment, auction result publication, settlement, and rediscounting rules.
• KRA withholding tax guidance - qualifying interest and withholding tax reference points.
• Nairobi Securities Exchange M-Akiba page - M-Akiba as a mobile-traded government retail infrastructure bond, Ksh 3,000 entry point, and tax-free interest wording.
• National Treasury 2025 Budget Policy Statement - M-Akiba re-engineering and integration with the central securities depository system.

Use our savings goal calculator to figure out how much you need to invest monthly to reach your target.