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My First Million

My First Million

The best business ideas come from noticing what's working and doing it better, faster, or for a different audience.

Back to Mental Models

Percentage-Based Fee Invisibility Model

People underestimate the long-term cost of percentage-based fees because they don't feel the pain of the payment, unlike lump-sum fees

Decision Rule

When evaluating financial services, convert percentage fees to dollar amounts over relevant time periods to make costs visible

How It Works

Percentage fees are automatically deducted from assets, creating psychological distance from the cost. Compound effect over decades makes the true cost exponentially higher.

Failure Modes

Ignoring compound effect of fees on final wealth

Not converting percentages to absolute dollars

Focusing on service benefits while ignoring cost structure

Comparing services based on percentage rates rather than total cost

Example Decision

Goldman Sachs 1% fee seems reasonable until you realize it costs $100k annually on $10M portfolio, or $10M+ in lost compound growth over 30 years.