Americans are getting smarter with money, but financial mistakes still cost the average adult almost $1,000 each a year.
According to the latest National Financial Educators Council (NFEC) survey, Americans lost an average of $948 to mistakes made because of a lack of personal-finance knowledge in 2025. Across a nation of approximately 260 million adults, that adds up to $246 billion down the train.
Fumbling almost a grand hurts, but the good news is that it’s the lowest reported in the past seven years of the survey.
The year 2022 was especially bad, with the average amount lost reaching $1,800 during a time of painful inflation. The second-worst year was 2020, when the average loss clocked in at $1,634 amid lockdowns, job losses, and pandemic panic.
Just under half (48.6%) of Americans surveyed reported losing at least $500 in 2025 due to inadequate financial literacy; for one in seven, it was $2,500 or more. Just over 4% said their lack of financial knowledge cost them at least $10,000 (1).
Three common money mistakes accounted for the most expensive errors, costing Americans billions collectively last year. Here’s what they were — and how you can avoid the same fate.
Racking up credit card interest and fees is by far the most expensive financial mistake most Americans make, adding up to an eye-watering $120 billion nationwide as of 2022, according to the Consumer Financial Protection Bureau (CFPB) (2). Nationwide, according to the Federal Reserve, credit card balances reached $1.23 trillion during the third quarter of 2025, an increase of $24 billion on the previous quarter (3).
Also according to the Fed, the average interest rate on credit cards issued by commercial banks reached nearly 21%as of November last year (4), while new card offers are now averaging just under 24% according to LendingTree (5). At those levels, carrying a balance, even for a few months, can inflate the effective cost of purchases — especially for borrowers with lower credit scores, who tend to face the highest rates.
Paying on time each month, avoiding carrying a balance, and prioritizing balance paydowns of the highest-interest debt can help prevent interest charges from compounding further.
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