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Risk & LossMedium Impact

Mental Accounting

Edited by Paweł Raja, PhD · Published · Updated

Definition

Mental Accounting is the tendency to categorize and treat money differently depending on where it came from or its intended destination.

Mental Accounting examples

People will happily spend a $50 tax refund on a luxury dinner, but would hesitate to spend $50 of their hard-earned paycheck on the same meal.

  • A work bonus is more readily splurged than the same amount drawn from regular salary, though the money is identical.
  • People keep low-interest savings while carrying high-interest credit-card debt, treating the two 'accounts' separately.

How to design for it (nudge strategy)

Bundle fees into specific categories that users have already 'allocated' mentally, or label savings as a specific asset (e.g., 'Holiday Fund').

Ethical use: design for choices people would endorse on reflection — a nudge, not sludge. Be transparent and keep opting out easy.

Related biases

Cite this page

Behavioral Economics Lab. "Mental Accounting – Definition, Examples & Evidence." Behavioral Economics Lab, https://www.behavioraleconomicslab.com/biases/mental-accounting.