How to Buy Treasury Bills in Nigeria 2026

Nigerian Treasury Bills are short-term federal government securities sold through Central Bank of Nigeria auctions. They can be a useful place to park naira for 91, 182, or 364 days, but the current rate changes at each auction and the practical buying route matters.

Source check, June 17, 2026: CBN's latest NTB primary market data reviewed for this guide showed the June 3, 2026 auction at 16.0500% for 91-day bills, 16.1900% for 182-day bills, and 16.3500% for 364-day bills. Treat those as a recent official snapshot, not a promise for the next auction.

T-Bills will not make you rich overnight. They do offer low default risk compared with private borrowers, but inflation, reinvestment, liquidity, channel fees, and tax treatment still affect your real return. Let's walk through how they work and how Nigerians usually access them.

What are Treasury Bills, exactly?

A Treasury Bill is a short-term debt instrument issued by the Federal Government of Nigeria through the Central Bank of Nigeria (CBN). You're basically lending money to the government, and they pay you back with interest after a set period.

There are three tenor options:

• 91-day T-Bills: mature in about 3 months. Lowest rate, highest liquidity.
• 182-day T-Bills: mature in about 6 months. Middle ground.
• 364-day T-Bills: mature in about 12 months. Highest rate, longest lock-up.

T-Bills are sold at a discount. You buy them for less than face value and receive the full face value at maturity. The difference is your interest. So if a 364-day bill is quoted around 16.35%, a ₦1,000,000 face-value example would produce about ₦163,500 before channel fees and any tax withholding, depending on the actual discount calculation and allotment terms.

(The actual calculation uses a discount formula, not simple interest, but that's the general idea.)

Current T-Bill rates in 2026

Rates change with every auction. CBN's official primary market table reviewed on June 17, 2026 showed this latest NTB auction snapshot:

These are nominal auction rates, not real returns. If inflation is above the rate you earn, your purchasing power can still fall even when your naira balance rises. Before bidding, check the current CBN Government Securities table or ask your bank or broker for the auction circular they are using.

Three ways to buy Nigerian T-Bills

1. Through a stockbroker or discount house

This is the normal practical route for investors who want direct NTB exposure arranged by a market participant. You tell your stockbroker or discount house which tenor and face value you want, they submit or arrange the bid, and the security is held through the market custody structure.

Important minimum note: DMO's public FGN Savings Bond notice separates retail savings bonds from ordinary Nigerian Treasury Bills. It lists FGN Savings Bonds from ₦5,000, but Nigerian Treasury Bills at ₦50,001,000 in that market structure. Retail customers may still access T-bill exposure through banks, brokers, or funds that aggregate orders, so always confirm the minimum for your channel.

2. Through your bank

Most commercial banks in Nigeria offer T-Bill investments or money-market products to customers. You tell your relationship manager you want to invest, they explain the current auction, and they confirm the minimum amount, expected net yield, fees, and maturity date. Minimums vary by institution and product.

The convenience comes at a cost. Banks often take a small spread on the rate, meaning you get slightly less than the auction rate. But for many people, the ease is worth it.

3. Through money market funds and savings apps

This is often the easiest entry point for small amounts. Some apps and asset managers offer money market funds or savings products that hold Treasury Bills, bank placements, and other short-term instruments. You are usually buying a fund unit or managed product, not a direct NTB in your own name.

The trade-off is that your return is the product's net yield after manager fees, custody charges, liquidity rules, and portfolio mix. Read the fund factsheet before assuming it will match the CBN auction rate.

Retail alternative: FGN Savings Bond

If your goal is a low-minimum federal government security rather than specifically a 91, 182, or 364-day Treasury Bill, compare the DMO FGN Savings Bond. DMO's February 2026 offer showed a ₦5,000 minimum, quarterly interest, and 2-year or 3-year tenors. That is a different product from T-Bills, so compare tenor, liquidity, coupon timing, and yield.

Bank or broker: step-by-step bidding flow

The exact workflow depends on your bank, broker, or discount house, but a clean T-Bill purchase should follow this logic.

Step 1: Ask for the current NTB auction terms

Ask for the current auction date, available tenors, minimum amount, expected marginal or stop rate guidance, fees, custody arrangement, and whether the quote is gross or net of withholding tax and charges.

Step 2: Choose tenor and face value

Pick 91 days if you want faster maturity, 182 days for a middle term, or 364 days if you can lock the cash longer. Confirm whether your amount is the face value you will receive at maturity or the discounted amount that will be debited upfront.

Step 3: Submit your instruction before the cut-off

Your bank or broker will have an internal cut-off before the CBN auction. Submit written instructions early and keep a copy of the rate guidance, tenor, amount, and charges.

Step 4: Understand the bid type

There are two bid types:

• Competitive bid: you specify the rate you want. If your rate is too high (you're demanding too much return), your bid gets rejected. Best for experienced investors.
• Non-competitive bid: you accept the auction outcome rather than naming your own rate. This is usually easier for smaller investors, but allotment still depends on the auction and your channel's rules.

Step 5: Wait for auction result and allotment

CBN publishes auction results through its government securities data. Your bank or broker should confirm the allotted rate, face value, discounted purchase amount, charges, tax handling, and maturity date.

Step 6: Collect at maturity

On the maturity date, the face value should be paid through the custody or bank channel you used. Calendar the maturity date before you buy, especially if you plan to roll the proceeds into the next auction.

Tax on T-Bill interest

Do not treat a gross auction rate as your final take-home return. Nigerian withholding tax treatment for short-term securities has changed in recent years, and banks, brokers, and fund managers may apply withholding at source depending on the instrument, investor type, and current FIRS guidance.

Using the June 3, 2026 CBN 364-day marginal rate as a simple illustration, on a ₦1,000,000 face-value example at 16.3500%:

• Gross interest illustration: approximately ₦163,500
• Less: any platform spread, custody fee, fund expense, or withholding deducted by your channel
• Net interest: confirm the actual amount before you commit funds

Ask your bank or broker for a written net-yield illustration and tax certificate handling. If the investment is held through a fund, read the fund's tax and fee notes rather than assuming the fund yield equals the direct CBN auction rate.

T-Bills vs other investments

T-Bills can hit a useful sweet spot: government-backed credit risk, short maturities, and secondary-market liquidity through a bank or broker. The trade-offs are channel access, changing auction rates, tax and fee deductions, and inflation risk.

For many Nigerians building an investment habit, a money market fund or FGN Savings Bond may be a simpler first step, while direct or bank-arranged T-Bills make more sense once you understand face value, discount pricing, auction results, and maturity handling.

Sources reviewed

Last reviewed: June 17, 2026. This guide was refreshed against the following official and primary-market sources:

• CBN Government Securities Summary and the CBN NTB primary-market data endpoint for the June 3, 2026 auction.
• CBN Macro Economic Indicators, including the latest 91-day Treasury Bill rate display.
• DMO Nigerian Treasury Bills document archive.
• DMO public notice introducing FGN Savings Bonds, including the stated market-structure minimums.
• DMO February 2026 FGN Savings Bond offer, used only for the retail alternative comparison.