Treasury Bills (or T-bills) are a secure, short-term investment that allows you to lend money to the Federal Government of Nigeria for a specific period. In return, the government pays you back the full amount, plus a fixed interest rate. They are considered one of the safest investment options available, making them an excellent starting point for anyone new to investing.

You can invest in Treasury Bills in Nigeria by buying them through an authorised dealer (a commercial bank, a licensed stockbroker, or an investment app) that places your funds in the bills on your behalf.

The Central Bank of Nigeria (CBN) issues new T-bills at auctions held every two weeks, but those auctions are reserved for big institutions as the minimum bid is over ₦50 million. So individuals typically buy on the secondary market, from as little as ₦10,000 on some investment apps.

This is your complete, jargon-free guide to how T-bills work in Nigeria — the tenors, the returns, the risks, and the exact steps to buy them. Then we will look at a simpler way to earn the same kind of secure, fixed returns: locking your money on Piggyvest.

How do treasury bills work in Nigeria?

Think of buying a Treasury Bill as giving the Federal Government a short-term loan. Instead of putting your money in a single savings account, the government pools these “loans” from thousands (sometimes millions) of investors to fund its activities, like covering budget deficits or paying for infrastructure projects.

Here’s a simple overview of how Treasury Bills work in Nigeria:

1. You lend money to the government. When you buy a T-bill, you are essentially providing capital to the Federal Government for a fixed period, known as the tenor. These tenors are typically 91 days, 182 days, and 364 days.
2. You earn a fixed interest. In exchange for your loan, the government pays you a fixed interest rate. This interest is determined at the time of purchase and is typically paid up front. This is possible because T-bills are “discount instruments,” meaning you buy them for less than their face value and receive an adjusted rate at the end of your investment period (maturity).
3. Your interest rate depends on the tenor. The interest you earn is directly tied to the length of your investment. Based on recent auctions, you can expect rates like 16.05% for 91-day bills, 16.19% for 182-day bills, and 16.35% for 364-day bills.
4. You get your full capital back. At the end of the tenor, on the maturity date, you receive your initial investment amount (the face value) back in full. Because the government backs the investment, it is considered one of the safest ways to grow your money.

Now, where exactly can you buy T-Bills?

Where can you buy treasury bills in Nigeria?

Now that you know how T-bills work, the next logical question is, “Where can I get them?” In Nigeria, Treasury Bills are available through two distinct channels, each designed for different types of investors. Understanding the difference between them is key to starting your investment journey.

You can buy Treasury Bills from two main places in Nigeria:

1. Primary market: This is where the Central Bank of Nigeria (CBN) sells newly minted T-bills through auctions held every two weeks. However, this market is primarily for high-volume players, such as banks and institutional investors, as the minimum investment required is ₦50,001,000.
2. Secondary market: This comprises authorised dealers, such as banks and investment platforms, who resell debt issued by the CBN at a profit. The minimum investment amounts vary from as low as ₦10,000 on some apps to over ₦100,000 at traditional banks.

So, for the everyday Nigerian investor, the secondary market is the clear and practical choice. It offers a significantly lower entry point, allowing you to access these secure, government-backed investments without needing tens of millions of Naira.

Are treasury bills a good investment in Nigeria?

Treasury Bills are considered one of the safest investment options available in Nigeria, making them an excellent starting point for anyone new to investing. But beyond just being safe, they offer several powerful advantages for building a strong financial portfolio.

Here are some of the main benefits of investing in treasury bills:

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• They offer unmatched safety. Because T-bills are a direct obligation of the Federal Government, they are considered virtually risk-free. As Divine Izeg-Udevbure, Treasury Associate at Piggyvest, confirms, “They’re usually seen as the safest instruments since they’re backed by the full faith of the government, and most regulated funds are even required to hold a portion in them.”
• They provide excellent liquidity. Within the context of investing, liquidity refers to how quickly you can convert an asset into cash without losing its value. T-bills excel here. “With T-bills, you can exit faster and cheaper compared to assets like stocks that might be trading sideways or land, which can take time to sell unless you’re ready to distress-sale it,” Divine explains.
• They act as an investment benchmark. Understanding the current yield on a risk-free asset, such as a T-bill, gives you a powerful tool for making better decisions. It provides a baseline to judge other opportunities. In Divine’s words, “Knowing what T-bills are yielding helps you recognise when another offer is unrealistically high or low.”
• They offer predictable returns. The interest rate on a T-bill is fixed when you buy it, so you know exactly what you’ll earn. Plus, that income is only subject to 10% withholding tax, meaning you’re 100% sure of your returns.
• They’re a great way to diversify your portfolio. For those who also invest in higher-risk assets, T-bills provide a stable anchor. They help you spread your risk and create a more balanced portfolio. As Divine puts it, “They keep your portfolio balanced, provide stability, and help you build a more resilient long-term financial plan.”

So, they’re great assets — perfect for newbies and experienced investors. But are they risk-free?

Is it risky to invest in treasury bills?

While you are almost guaranteed not to lose your initial capital, no investment is entirely without risk. With T-bills, the risks are not about losing your money but about its value.

Here are the major drawbacks of investing in treasury bills:

• They’re susceptible to inflation: Your T-bill return is locked in, but the cost of living is not. If inflation rises above your bill’s rate, the real (inflation-adjusted) value of your money falls. Right now, the margin is thin: with headline inflation at 15.69% (as of April 2026) and T-bill rates around 16%, a one-year bill barely stays ahead of rising prices — and if inflation climbs again before your bill matures, you could end up earning a negative real return.
• They come with opportunity costs: the money you lock into T-bills cannot be used for other investments that offer higher returns via different platforms, such as real estate or stocks. By choosing the safest option, you may be forgoing the opportunity for greater profits elsewhere.
• Cashing out early can cost you. Selling before maturity is possible (and easier than offloading land or shares), but you’ll take whatever price the secondary market offers that day, which can be below what you paid if rates have moved against you.

Now that we know the pros and risks, who exactly can buy treasury bills in Nigeria?

Can anyone buy treasury bills in Nigeria?

Any individual or company with a Nigerian bank account can invest in Treasury Bills. For most people, the process involves going through an authorised financial institution (such as a commercial bank, a licensed stockbroker, or an investment app) to buy T-bills in the secondary market.

Depending on where you’re buying treasury bills, you’ll need at least ₦10,000 to start investing.

How to buy treasury bills in Nigeria

Investing in T-bills through the traditional route is straightforward, though it involves some paperwork.

Here is a step-by-step guide to buying treasury bills in Nigeria:

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1. Choose a financial institution. Your first step is to decide where to buy your T-bills. You can use your regular bank, a licensed stockbroker or an investment platform.
2. Complete the required paperwork: You will need to open an investment account with the institution. This typically involves completing forms and meeting KYC (Know Your Customer) requirements, including providing a valid ID, proof of address, and your BVN.
3. Fill out an investment form. On this form, you will specify how much you want to invest, the tenor you prefer (91, 182, or 364 days), and your “bid rate” — the interest rate you are willing to accept. A pro tip is to bid at the “prevailing market rate” to increase your chances of a successful purchase.
4. Fund your investment. Once your form is submitted, you will need to transfer the discounted purchase price into your investment account.
5. Receive confirmation. After the transaction is complete, your bank, broker or chosen app will provide you with a certificate or digital confirmation of your investment, detailing the amount, tenor, and maturity date. 

Once you get that confirmation, your money stays in the bill until maturity, when your capital is returned. Prefer to skip the forms and KYC back-and-forth? There’s a lower-effort way to earn similar fixed returns on Piggyvest, which we’ll cover shortly.

First, let’s see how T-bills stack up against the other options you might be weighing.

Are treasury bills better than savings accounts?

For growing your money, treasury bills are better than traditional savings accounts because they almost always offer higher interest rates. And while a savings account gives you instant access to your money, T-bills are a much better option for parking money that you won’t need for a few months to a year.

This “parking” feature also makes them an excellent way to build financial discipline while earning decent returns.

Are treasury bills better than high-interest savings accounts?

Treasury bills are excellent for locking away a lump sum of money you won’t need for a specific period. Your interest rate is fixed, and your money is untouchable until the maturity date. This makes them perfect for specific, time-bound goals.

High-interest savings accounts (or HYSAs) like Piggyvest’s PiggyBank (which offers up to 17% per annum) are built for more flexible, ongoing savings. While they also encourage discipline through features like set withdrawal days, they allow you to save consistently (daily, weekly, or monthly) and access your funds more frequently than a T-bill would allow.

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The better choice between the two depends on your financial goals. Are you looking for strict, disciplined saving for a fixed period, or do you need a bit more flexibility?

Are treasury bills better than stocks?

Comparing treasury bills to stocks is like comparing apples and oranges; they serve different purposes in your financial plan. T-bills are primarily used for capital preservation and are ideal if your main goal is to keep your money safe while earning a predictable, fixed interest rate.

Stocks, on the other hand, are for long-term growth. They offer the potential for much higher returns but come with higher risk and price volatility. A well-balanced investment portfolio can, and often should, include both to balance safety with growth.

How Piggyvest SafeLock compares to buying T-bills

T-bills aren’t the only way to earn fixed, secure returns over a set period — and they’re not always the most convenient. If you like the idea of locking money away for a guaranteed return but don’t fancy the dealer paperwork, high minimums, and KYC forms, Piggyvest’s SafeLock is built for exactly that.

SafeLock lets you lock a fixed sum for anywhere from 10 to 1,000 days and earn up to 19.5% per year, with the interest paid upfront (the moment you lock) or at maturity — your choice. Like a T-bill, your money is set aside and untouchable until the date you pick. Unlike a T-bill, you can start with as little as ₦1,000 and set it up in a few taps.

Let’s see how they stack up against each other:

Feature	Traditional T-Bills	Piggyvest SafeLock
Safety	Backed by the Federal Government.	Secured by Piggyvest, fully licensed and regulated. Capital is invested in low-risk instruments.
Interest Rate	15% for 91-day bills, 15.3% for 182-day bills, and 16.78% for 364-day bills.	Up to 19.5% per annum
Tax on Returns	10% WHT on interest	10% WHT on interest
Interest Payment	Paid upfront	Paid upfront or at maturity into your Piggyvest Flex Naira wallet — your choice
Minimum Investment	₦50,000 to ₦100,000 at banks and as low as ₦10,000 via investment apps.	You can start with as little as ₦1,000 for as low as 10 days.
Process	Requires visiting a bank or broker to fill out forms or downloading an entirely new app.	A few clicks on the Piggyvest app.

SafeLock offers all the safety benefits of T-bills while providing significant advantages, including higher interest rates, upfront interest payments, a lower entry barrier, and a seamless digital experience.

The bottom line

Treasury Bills are a solid, secure investment for anyone in Nigeria looking to preserve their capital and earn predictable returns. However, the traditional process can be cumbersome, and the returns may not be the most competitive available.

For the modern Nigerian saver who values convenience, accessibility, and the power of upfront interest, SafeLock provides a superior user experience to achieve your financial goals. It eliminates paperwork and high entry barriers, offering a more accessible way to secure guaranteed returns.

Ready to lock in competitive returns without the hassle? Download the Piggyvest app and start earning today!