Americans' financial literacy has slipped to its lowest level in a decade, according to the 2026 TIAA Institute-GFLEC Personal Finance Index released this month.
U.S. adults correctly answered just 47% of the 28 P-Fin Index questions in 2026 — a significant drop from the prior year and the weakest result since the survey launched in 2017. The figure has never exceeded 52% over the decade.
The share of adults with very low financial literacy (seven or fewer questions correct) rose from 20% in 2017 to 25% in 2026. The top of the distribution barely moved: just 15% answered 22 or more correctly, down one point from 2017.