Your idle cash is shrinking (and the account balance won't tell you)

Nigeria's headline inflation was 15.43% in July 2026. Food inflation, year on year, was 20.31% (NBS Consumer Price Index).

Here is the uncomfortable implication. A balance that reads the same in July and the following July has not held steady. It has lost roughly a sixth of what it could buy — and closer to a fifth if what you buy is mostly food.

Your banking app will never show you this. It shows the same number, in the same font, and the number is technically correct. That's precisely what makes idle cash the quietest loss in personal finance: nothing happens, visibly, for months.

"Safe" and "not losing" are different things

Most idle money isn't the result of a decision. It accumulates:

• The buffer that outgrew its job. You keep three months of expenses liquid — sensible. But income rose, the buffer never got recalculated, and now it's seven months sitting flat.
• The account you stopped using. Money left behind when you moved banks. It isn't lost. It just isn't doing anything.
• The sinking fund with no deadline. Saved for a car, a move, a wedding — and the plan slipped by a year while the money waited in a zero-interest current account.
• Cash between decisions. You sold something, or a big payment landed, and it's parked while you think. Thinking has taken five months.

Work out your own number in ten minutes

No app required.

1. Total what's genuinely idle. Every balance you have not touched in 90 days and have no specific plan for in the next 90.
2. Multiply by 0.15. Roughly what that money will be worth less in a year at current headline inflation. If most of your spending is food, use 0.20.
3. Sit with the figure. ₦2,000,000 idle is about ₦300,000 of purchasing power a year. That is not a rounding error — for many people it's more than a month's income.

Then decide something. Not necessarily something clever. A fixed deposit, T-bills, a money-market fund, or simply moving it into the savings account that pays anything all beat the current account. The decision matters more than its sophistication.

The hard part is noticing, not deciding

Nobody chooses to leave money idle for eight months. It happens because nothing ever prompts a review — no alert fires, no balance changes, no statement line appears.

That's what Moneytaw's Idle Funds lens is for. It looks across every account you've imported, finds the balances sitting still against your actual emergency-fund needs, and puts a figure on what isn't working. It's one of fourteen lenses that read your transactions for patterns a balance can't show you — the small leaks, the subscriptions you forgot, the spending that quietly rose with your income.

The money doesn't move itself. But at least you'll know it's standing there.