How long and how much to save monthly to reach a home deposit target.
Time to reach deposit
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Deposit needed then
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Real value today
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Saving for a target that keeps moving
The hard part of saving a house deposit in Nigeria is not the saving. It is that the finish line runs away from you. While you build your balance month by month, property prices climb, so the deposit you need next year is bigger than the one you needed today. This calculator models both sides at once. It compounds your savings at the return you set while it grows the deposit target at a price-growth rate, then reports the month your balance finally overtakes the rising goal.
Three inputs drive the timeline: how much you put away each month, the return that money earns, and how fast prices rise. The fourth figure, your current savings, gives you a head start. Because the target grows alongside your pot, a low monthly contribution against fast price growth can mean you never catch up, which is exactly the warning the tool surfaces when it caps the search at 100 years.
The inflation figure behind the real-value number
Nigerian inflation has been steep, and the tool uses a headline rate of 23 percent, in line with the figure published across this site and drawn from National Bureau of Statistics reporting, to translate your future deposit back into today's money. That is what the real-value output means: the purchasing power, in current naira, of the sum you will have saved. It is sobering. A deposit that looks large in future naira can be worth far less once you strip out the erosion of inflation, which is why hitting the target quickly matters as much as hitting it at all.
A NGN 16 million goal, tracked to the month
Run the defaults. You want a deposit worth NGN 16,000,000 today, you already hold NGN 2,000,000, you save NGN 300,000 a month, your savings earn 18 percent, and prices rise 8 percent a year. The tool compounds the balance monthly and lifts the target monthly until the two meet. They cross at month 43, which is 3 years and 7 months. By then the deposit you actually need has grown to about NGN 21,291,418, yet its real value in today's money is only around NGN 10,140,155.
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The chart contrasts the future deposit you reach with what that money is really worth once inflation is taken out.
Contribution beats yield, almost every time
It is tempting to hunt for a higher-yielding account to reach the goal sooner. In a high-inflation, high-rate economy that instinct is half right and half a trap. Nudging the return from 18 to 20 percent shaves only a little off the timeline, and the extra yield often comes with more risk to your capital, which is the last thing a deposit fund should carry. Raising the monthly contribution moves the date far more reliably. If you can lift saving from NGN 300,000 to NGN 400,000, the finish line jumps toward you in a way an extra two points of return never will.
One common mistake is leaving price growth at zero to make the timeline look friendly. That quietly assumes property prices stand still, which they rarely do. Keep a realistic growth figure in, even a modest one, so the target you are chasing is the one you will actually face. And park the money somewhere genuinely liquid and low-risk. A deposit you might need within a few years should not be exposed to the swings of equities or speculative assets.
Should the savings return be after tax?
For a clean estimate, use the return you actually expect to keep. Interest on deposits and many fixed-income instruments can attract tax, so if your account pays 20 percent gross and tax takes a slice, enter the net figure you will really earn. Overstating the return makes the timeline look shorter than it will be.
What if the tool says I never reach the target?
That happens when your monthly saving plus its return cannot outrun the growing target, so the balance never catches up within the 100-year cap. The fix is almost always to raise the monthly contribution or lower the price-growth assumption if it is unrealistically high. A larger starting balance also helps, since compounding has more to work on from day one.