EXCERPT: A 12% return can still leave you poorer. Here is how to measure what your money earns after inflation, and where yields stand now.
INTRODUCTION
Your investment grew by 12% this year, and you can still afford less than you could a year ago.
That isn’t a trick. With Nigeria’s headline inflation at 15.39% in August 2026, any return below that number quietly shrinks what your money can buy.
The balance goes up in the app while your purchasing power goes down at the market.
Understanding how inflation affects your investments in Nigeria matters more right now than it has in years.
Inflation is cooling, the CBN has just cut its policy rate from 26.5% to 23%, and returns on safe assets are falling with it.
The old habit of parking everything in treasury bills is being tested.
This post shows how to measure what your investments earn after inflation, how the main options compare today, and what changes when rates drop. By the end, you’ll know whether your money is working for you or just standing still.
How Inflation Affects Your Investments in Nigeria
Inflation is the rate at which prices rise. At 15.39%, something that cost ₦100,000 a year ago costs about ₦115,390 now. Your money has to grow by at least that much just to stay level.
Investors talk about two kinds of return:
The nominal return is the number your app shows you.
The real return is what’s left after inflation takes its share.
Real return is the only return that buys groceries. Leave ₦1,000,000 idle for a year at 15.39% inflation and it buys what roughly ₦866,600 buys today. You didn’t lose a naira, and you still lost over ₦133,000 of buying power.
The official numbers come with context. Inflation was 23.14% in August 2025 and has fallen since, and the NBS now measures it on a rebased CPI with 2024 as the base year. Falling inflation means prices rise more slowly. It doesn’t mean prices come down.
Food is where many households feel it most. Food inflation was 19.57% in August, well above the headline rate.
If most of your spending goes on food, your personal inflation rate is probably higher than 15.39%.
How to Calculate Your Real Return on Investments in Nigeria
You don’t need a finance degree for this. Five minutes and a calculator will do.
- Find your nominal return. Use the annual percentage your investment actually paid, after fees.
- Find the latest inflation figure. The NBS publishes it monthly in its CPI report. The August 2026 headline rate is 15.39%.
- Subtract inflation from your return. The quick version is nominal minus inflation. The exact version is (1 + return) ÷ (1 + inflation) − 1.
- Swap in your own inflation if food dominates your budget. Compare against 19.57% instead and see how the answer changes.
- Repeat every quarter. Both numbers move, so yesterday’s answer expires.
Here’s what that looks like. A one-year treasury bill at 15.89% against 15.39% inflation leaves a real return of less than half a percentage point.
Cash in a bank savings account paying around 8% loses roughly 6% a year in real terms.
Which Investments Beat Inflation in Nigeria Right Now
Rates move weekly, so treat everything below as a snapshot from late September 2026. This is general information, not financial advice.
Treasury Bills
T-bills are the safest naira option, backed by the federal government. At the 23 September auction, the CBN sold 182-day bills at 15.8% and one-year bills at 15.89%, the lowest levels in months. They’re safe, but the real return is thin.
FGN Bonds
The DMO’s 14 September auction cleared a new 10-year bond at 16.79%, below August levels. That sits about 1.4 points above inflation, and the coupon stays fixed for the life of the bond. The catch is that bond prices move opposite to interest rates, so selling early in a rising-rate market can cost you.
Stocks
The NGX All-Share Index is up roughly 60% so far in 2026 on top of a 51.19% gain in 2025, with different trackers reporting between about 57% and 65% depending on the date. That beats inflation several times over. It isn’t a promise, because the same index fell in 2016, 2018 and 2019, and those figures exclude dividends and the effect of the currency.
Stocks suit money you won’t need for five years or more.
Savings Apps and Bank Accounts
Fintech savings apps have advertised anywhere from 14% to 22% a year, and those rates follow the same policy signals that just moved. A traditional bank account at around 8% loses to inflation by a wide margin. Check the live rate before you rely on either.
Dollar Assets
The naira has been steady in 2026, trading near ₦1,358 in mid-August and ₦1,329.50 in mid-September at the official window. That makes the case for dollar savings less urgent than in past years. Currencies can still move quickly, so some people keep a small dollar slice as insurance.
Will Falling Interest Rates Hurt Your Investment Returns in Nigeria
They can, and the first signs are already visible. The CBN’s 350-basis-point cut to 23% was the biggest in almost two decades, and treasury bill yields dropped within days. Investors rushed to lock in returns before offerings paid less.
Here’s the part many people miss. Inflation and yields are both falling, but yields fell faster. That squeezes the gap between what you earn and what you lose to rising prices.
Reinvestment risk is the real danger. If you hold only short-dated bills, each rollover may pay less than the last. Locking a longer tenor holds today’s yield for longer, but it ties up your money, so match the tenor to when you need the cash.
Nobody knows whether rates keep falling or inflation surprises on the upside. What you can do is stop assuming last quarter’s yield will still be there next quarter.
Keep account numbers and BVNs out of any AI tool, and work with rounded figures instead.
Common Mistakes Nigerians Make When Investing During High Inflation
Leaving cash idle. A balance that doesn’t earn at least the inflation rate shrinks every month. Even a modest instrument beats a flat account.
Chasing last year’s winner. Stocks gained over 50% in 2025, and many people pile in after the run. A rally can cool as fast as it heated up, as the profit-taking in banking stocks showed this week.
Judging by the headline rate alone. A 22% promotional rate on a long lock isn’t the same as 22% on money you can reach. Always check the lock period and early-exit terms.
Ignoring fees and tax. A 16% return with a 2% charge is a 14% return, which is already below inflation. Subtract costs before you compare.
Locking everything long as rates fall. It feels smart, but you may need the money before maturity. Keep an accessible cushion.
How to Protect Your Savings From Inflation in Nigeria
Think in layers, based on when you’ll need the money.
Money you need within a year belongs in short, safe places like treasury bills or flexible savings, accepting a thin real return in exchange for access.
Money for one to five years can sit in bonds or fixed products, where you lock a rate for longer.
Money you won’t touch for five years or more is where equities earn their place, with the volatility that comes with them.
Review the whole picture every quarter. Recalculate your real return, check whether your yields have moved, and rebalance if one layer has drifted far from your plan.
Spreading across layers also keeps one bad year in a single asset from sinking everything.
What Inflation Means for Your Next Investment Decision
Inflation decides whether a return is real. The only number worth chasing is what you earn after prices have taken their cut, and right now that margin is thinner on safe assets than the headline rates suggest.
Check your real return, match each pot of money to when you need it, and review as rates fall. That routine protects you better than any single product.
