How to Buy Infrastructure Bonds in Kenya 2026: A Complete Step-By-Step Guide for Diaspora and Resident Investors, With Yields, Tax Exemption and CBK Auction Calendar

Kenya infrastructure bonds (IFBs) are the single most attractive fixed-income product available to Kenyan investors in 2026. Unlike ordinary Treasury bonds, the coupon income from an infrastructure bond is fully exempt from withholding tax. Yields at recent auctions have ranged from 13 to 16 per cent for tenors between 6 and 15 years. The combination of tax-free coupon, long tenor, sovereign credit, and ease of purchase through any CMA-licensed stockbroker or commercial bank participating in CBK auctions makes IFBs an almost unique product. This guide walks you through what an infrastructure bond is, the differences between IFBs and ordinary T-bonds, the step-by-step process to buy one (CDS account, bidding, settlement), the live 2026 auction calendar, the tax treatment, and a sample buying strategy.

What an Infrastructure Bond Actually Is

An infrastructure bond is a Treasury bond issued by the National Treasury through the Central Bank of Kenya, with the proceeds earmarked for infrastructure spending — roads, railways, energy, water, and similar long-life public assets. Because the bond is tied to infrastructure financing, the government has gazetted a tax exemption on the coupon income under the Income Tax Act, removing the 10-15 per cent withholding tax that would normally apply to bond coupon. The principal is paid back at par at maturity (or in tranches on amortising bonds), and the coupon is paid semi-annually in shillings.

IFBs are issued in tenors between 6 and 25 years. The most popular auction tenors have been 7, 10, 12 and 15 years. They are listed on the Nairobi Securities Exchange and can be sold in the secondary market through any licensed stockbroker before maturity.

IFB vs Ordinary Treasury Bond

An ordinary T-bond has a coupon subject to 10-15 per cent withholding tax. An IFB has a tax-exempt coupon. On a comparable nominal yield, the IFB delivers a meaningfully higher effective return. For example, a T-bond at 14 per cent gross yield delivers 11.9 per cent after 15 per cent withholding. An IFB at 14 per cent delivers the full 14 per cent. Over a 10-year tenor, the cumulative difference compounds into a substantial cash advantage for the IFB holder.

The trade-off is that IFB issuance is less frequent than T-bond issuance, and individual issues can be heavily over-subscribed when yields are attractive. This means an investor must plan ahead and place a competitive bid.

Step 1: Open a CDS Account With CBK

The Central Depository System (CDS) operated by the Central Bank of Kenya holds your investment electronically. To buy IFBs at primary auction, you need a CDS account with CBK (separate from the CDSC account used for NSE equities). You can open a CDS account at any CBK branch in Nairobi, Mombasa, Kisumu, Eldoret, or Nakuru, or through a participating commercial bank under the CBK Treasury Mobile Direct service.

Required documents: a copy of your National ID or Kenyan passport, a passport photo, a copy of your KRA PIN certificate, a completed CDS Account opening form, and the bank account details into which coupon and principal will be paid. For diaspora investors, the CBK has a documented procedure for opening a CDS account through your commercial bank's diaspora desk, with the supporting documents notarised at a Kenyan embassy.

Step 2: Watch the Auction Calendar

The CBK publishes its monthly auction calendar on its website at the start of each month. The calendar lists the bond on offer (whether it is a new issue or a tap-reopening), the target amount, the tenor, and the auction date. Infrastructure bonds are issued several times per year, with the most common windows in February, May, August and November. Subscribe to the CBK email alerts so you do not miss a tap window.

The auction calendar also publishes the discount rates from prior auctions, so you can see where similar IFBs have priced and form a view on the appropriate bid.

Step 3: Place Your Bid

On the auction day, you submit your bid through your commercial bank, your stockbroker, or directly through the CBK Treasury Mobile Direct app. There are two bid types: a competitive bid (where you specify a yield) and a non-competitive bid (where you accept the weighted average yield from the auction). For new investors, the non-competitive bid is the easier choice; you accept whatever yield the market clears at.

The minimum bid is KSh 50,000 for primary auctions, with bids in multiples of KSh 50,000 thereafter. Settlement is typically T+2 (two business days after the auction). The bank or broker debits your account for the settlement amount and credits the bond units to your CDS account.

Step 4: Receive Coupon and Hold to Maturity

Coupon is paid semi-annually directly to your registered bank account or M-Pesa wallet on the coupon date. No withholding tax is deducted. At maturity, the principal is paid back at par. If you need liquidity before maturity, you can sell the bond on the NSE secondary market through any stockbroker, with a settlement period of T+3.

Yields in 2026: What to Expect

The most recent IFB auctions in 2025-26 have cleared at the following indicative yields: 7-year tenor at 13.5-14.5 per cent, 10-year tenor at 14.0-15.0 per cent, 12-year tenor at 14.5-15.5 per cent, 15-year tenor at 15.0-16.0 per cent. The directional bias for the next 12 months, with the CBR cutting cycle, is for yields to compress gradually. This means an investor buying today locks in higher yields than may be available a year from now.

The Diaspora Infrastructure Bond Tranche

In early 2026, Treasury issued an explicit diaspora-targeted infrastructure bond with simplified subscription through Kenyan embassies and the State Department for Diaspora Affairs. The product was marketed in both KSh and USD denominations, with the KSh denominated tranche providing the full tax-exempt yield in shillings and the USD denominated tranche providing a lower yield with currency-stable returns. Treasury has signalled that further diaspora tranches will follow on a regular basis.

For diaspora investors, the simplest approach is to subscribe to the diaspora-targeted tranches through their embassy when issued, and to subscribe to ordinary auctions through their commercial bank's diaspora desk in between. We covered the broader bond strategy in our M-Akiba and diaspora bonds guide.

A Sample Buying Strategy

For an investor with KSh 1 million to deploy into infrastructure bonds, a reasonable strategy is to spread the capital across two or three auctions and tenors. For example: KSh 400,000 in a 10-year IFB, KSh 400,000 in a 15-year IFB, KSh 200,000 in a shorter 7-year IFB. This creates a ladder of coupon receipts and maturity dates that gives both yield optimisation and reinvestment flexibility.

The coupon income from KSh 1 million at an average yield of 14.5 per cent delivers approximately KSh 145,000 per year, paid in two semi-annual instalments, free of withholding tax. Over a 10-year period, this is KSh 1.45 million in coupon income alone, in addition to the KSh 1 million principal returned at maturity.

Practical Tips

First, set up CBK email alerts so you receive the monthly auction calendar automatically. Second, build a relationship with the Treasury desk at your commercial bank — they can give you intelligence on likely auction demand and the appropriate bid level. Third, place non-competitive bids if you are a small investor; competitive bidding requires more market judgement. Fourth, fund your subscription account well in advance to avoid settlement failures. Fifth, keep your CDS account contact and bank details current so coupon payments arrive without delay.

Risks

Infrastructure bonds carry sovereign credit risk, interest-rate risk (the bond's market price moves inversely with prevailing rates), and the FX risk applicable to all shilling-denominated investments held by diaspora investors. For the typical diaspora investor with a Kenyan home or Kenyan family commitments, the FX risk is partial offset because shilling-denominated obligations are a natural hedge for shilling-denominated income.

What Diaspora Households Should Do This Quarter

First, open or refresh your CDS account with CBK. Second, subscribe to the auction calendar email. Third, identify the next IFB window on the calendar. Fourth, decide on your bid amount and place a non-competitive bid through your commercial bank or stockbroker. Fifth, watch the settlement and confirm your CDS account is credited.

The Bigger Picture

Infrastructure bonds are the highest-quality fixed-income product in Kenya. The combination of tax exemption and high yield is rarely matched in any emerging market. For diaspora households building a diversified Kenyan portfolio, an IFB allocation of 20-40 per cent of fixed-income capital is a sensible starting point. The diaspora investors who engage with the IFB market consistently over the next decade will compound returns at rates that significantly outpace bank deposits, money market funds, and even ordinary T-bonds.

For complementary reading, see our M-Akiba and diaspora bonds guide and Best Money Market Funds Kenya 2026.