mental accounting
Mental accounting is treating money differently depending on where it came from, even though every naira is identical.
In plain English
You would never take ₦200,000 out of your savings to buy a watch. But the ₦200,000 bonus that arrived last week? That felt different, and you spent it without much thought.
It was the same ₦200,000. Money does not remember where it came from, and it does not care.
Mental accounting is the habit of putting money into separate mental pots and treating each one by different rules. Bonus money is fun money. Tax refunds are free money. Gambling winnings are not real money. Salary is serious money.
None of this is true, and it costs people a great deal.
The most expensive version in Nigeria is holding savings in a low interest account while carrying a 30 percent loan. The two sit in separate mental pots. In reality you are paying 30 percent to borrow money you already have, and clearing the loan with the savings would be an immediate, guaranteed 30 percent return.
But it does not feel that way, because savings feel like safety and the loan feels like a separate problem.
Look at everything together. All of it is one pile. And ask what that pile, as a whole, should be doing.
You hold ₦600,000 in savings earning 5 percent while carrying ₦500,000 of card debt at 32 percent. The two sit in separate compartments in your mind. In reality you are paying ₦135,000 a year for the comfort of seeing a number in your savings app.
Questions people ask
Is mental accounting always bad?
Not entirely. Separating an emergency fund from spending money is a useful discipline. It becomes costly when it stops you seeing the whole position clearly.
What is the most expensive example?
Holding savings at low interest while carrying expensive debt. Clearing the debt is a guaranteed return that no investment can promise.
Why do we do it?
Because it simplifies decisions and it feels safe. It is a mental shortcut, and shortcuts have costs.
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