Reframe windfalls before they evaporate

"Found money" gets spent loosely precisely because it never entered the serious bucket.

Why it works

Money labeled as a windfall — a bonus, a refund, a gift — is filed in a low-friction mental account and spent far more freely than identical money earned through regular income. The label, not the amount, sets the spending rule. Deliberately re-filing a windfall into your main account before deciding restores the same standard you’d apply to any other dollar.

How to do it

1. When a windfall arrives, mentally route it into your normal account before deciding anything.
2. Ask what you would do with the same sum if it had come from your regular paycheck.
3. Decide on the windfall only after it has lost its "free money" label.

Evidence

Studies of how people treat windfalls, bonuses, and tax refunds consistently find higher and looser spending from "found money" than from regular income of the same size — a direct manifestation of mental accounting. (observational)

Observational and experimental survey evidence; treating it as a tendency, not a law that applies to everyone identically.

Sources

• Thaler (1999), "Mental Accounting Matters", J. Behavioral Decision Making (windfall and source effects)

Common mistake

Telling yourself "it’s extra, so it doesn’t count" — which is exactly the label that makes a windfall disappear faster than earned money ever would.