The Federal Deposit Insurance Corporation’s own national rate data shows a reversal that upends a rule most savers take for granted: parking money in a bank certificate of deposit for a year now earns more, on average, than locking it up for three or five years. For a retiree or near-retiree who was taught that a longer CD term always means a better rate, the math has quietly flipped.
What the FDIC’s National Rate Data Shows
The FDIC publishes a national rate for CDs of different terms every month, calculated as the deposit-share-weighted average of what all FDIC-insured banks and credit unions that report data are actually paying. As of August 2026, the national rate for a 12-month CD stood at 1.71%, while the national rate for a 36-month CD was 1.34% and the rate for a 60-month CD was roughly 1.36%, according to the underlying FDIC series as published through the Federal Reserve Bank of St. Louis. That is a genuine inversion, not a rounding artifact: the same data series that tracked those rates rising steadily with maturity for most of the past two years now shows the curve bending the other way for standard-length CDs.
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Why the FDIC Even Tracks a “National Rate”
The FDIC calculates this national rate, and a related “national rate cap,” under a 2020 rule aimed at banks that fall below well-capitalized status, which are restricted from luring in deposits by offering rates well above what the rest of the market pays. Under that rule, the national rate cap is set at whichever is higher: the national rate plus 75 basis points, or 120% of the yield on a comparable-maturity Treasury security plus 75 basis points. That regulatory purpose is also why the figure is a useful early-warning signal for ordinary savers: it is a genuine, deposit-weighted snapshot of what the banking system as a whole is paying, not a marketing number, which is exactly why an inversion in it is worth taking seriously.
Why Longer CDs Stopped Paying a Premium
Banks price a CD partly on where they expect interest rates to sit over the life of the deposit, not just where rates are today. When a bank believes short-term borrowing costs and Federal Reserve policy are more likely to fall than rise over the next several years, it has less reason to lock in a high rate for savers who commit their money for three or five years, since the bank could end up paying above the going rate later in that term. At the same time, banks keep competing hard for shorter deposits to fund near-term lending, which can push 12-month offers above what the same bank pays on a 36- or 60-month CD. The same rate-expectations dynamic shows up in the Treasury market, where yields on longer bonds have periodically dipped below shorter ones during the current stretch.
A National Average, Not the Best Rate on the Shelf
The FDIC’s figure is a system-wide average dragged down by large branch-based banks that pay little on almost any deposit, so the inversion in that data does not mean every long-term CD in the country is a bad deal. Competitive online banks and credit unions were still advertising five-year CDs paying above 4% APY in late August 2026, on par with or above their own best one-year offers, according to rate-comparison surveys published the same week. The gap described in the FDIC’s national rate is most visible to savers who leave money sitting at a legacy bank rather than shopping their balance around before renewing, which is exactly the group least likely to notice a term-length trap until a maturity notice arrives in the mail.
Why It Matters for a Retirement CD Ladder
Retirees commonly build a CD ladder, splitting savings across one-, two-, three-, four- and five-year terms so that a portion matures every year for spending needs while the rest keeps earning. That strategy depends on longer rungs of the ladder paying a premium for tying up money longer; when the national data shows the opposite, a retiree who automatically rolls a maturing CD into whichever term the branch defaults to can end up earning less for giving up more flexibility. Comparing the offered rate on a new one-year CD against a three- or five-year CD at the same institution, and against outside banks, before signing a new term has become a more important step than it was when the curve sloped upward as a matter of course.
The Cost of Getting the Term Wrong
Committing to a longer CD still carries the usual downside if a saver needs the money early or wants to switch to a better-paying account. Federal rules set only a floor on early-withdrawal penalties, not a ceiling: under Regulation DD, a bank must charge at least seven days’ simple interest on funds withdrawn within the first six days of deposit, but beyond that minimum, individual banks are free to set penalties as steep as they choose, and many CD contracts specify penalties worth several months to a year of interest on longer terms. A saver who locks up funds for five years at a rate below what the same bank pays on a one-year term is taking on that extra liquidity risk without being compensated for it, which is the reverse of what a CD ladder is supposed to accomplish. Reading the early-withdrawal penalty clause before signing, not just the advertised rate, is the only way to know what a term-length mistake would actually cost to unwind.
This article was produced with the assistance of AI and reviewed by The Financial Wire editorial team.
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Warren Cohen is a finance writer based in Phoenix, Arizona, covering personal finance topics including credit, banking, and beginner investing. He earned his degree in business administration from Arizona State University and began his career working in consumer finance, where he gained direct experience with lending and credit systems. He now writes for personal finance websites and fintech platforms, focusing on clear, practical content that helps readers make informed financial decisions.
