22% of Americans name not saving for retirement early enough as their single biggest financial regret — a figure that has topped Bankrate’s annual survey for six of the past seven years. Among those already enrolled in a workplace plan, the Nationwide Retirement Institute found that 85% of respondents over 45 wish they had started contributing sooner. On the action side, peer-reviewed RAND American Life Panel data from Börsch-Supan and colleagues found that only 2% of adults aged 60 to 79 wish they had saved less over their lifetime. The asymmetry is stark and consistent across methodologies: almost nobody regrets the sacrifice of early saving, but a large share regrets the delay.
The mechanism is compound interest, which is indifferent to feelings about youth and freedom. A dollar invested at 25 does roughly four times the work of a dollar invested at 45, assuming a 7% real return. Gen X respondents in the CFP Board’s 2025 survey reported a median estimated lifetime cost of their financial mistakes at nearly $100,000, with 13% putting the figure above $500,000. The regret is not abstract — it translates into delayed retirement (31%), reduced ability to save or invest further (28%), and stress levels that 59% of Gen X respondents described as significant. Younger cohorts appear to be internalizing the lesson: Gen Z and Millennial savers are starting contributions at ages 24 to 30, roughly a decade earlier than Gen X and Boomers did.
The main caveat is framing. Bankrate’s 22% captures only the single worst regret — a high bar that understates the total prevalence of retirement-timing regret. Nationwide’s 85% casts a wider net but surveys only people already in a plan, missing those who never enrolled at all. The 2% action-regret figure from the RAND panel is the most methodologically rigorous number in the set, but it covers only survivors aged 60 to 79 — people who made it that far with enough cognitive health to answer a survey. The directional finding is unambiguous: inaction regret dominates, and it does not fade with age.