Money is money, but our brains rarely treat it that way. Mental accounting is the tendency to assign different value to money based on where it came from, even when every dollar spends exactly the same.
A tax refund or bonus often feels like free money, so it gets spent more casually than income from a regular paycheck, even though both represent the same purchasing power. This is why windfalls disappear so quickly compared to how carefully people budget their normal salary.
Recognizing this bias is often enough to counter it. Treating a windfall with the same intentionality as a paycheck, rather than as bonus spending money, tends to lead to better long-term outcomes. This article is for general education only.