Are CDs Worth It? The Average One Is Losing to Inflation

Are CDs worth it when the bank down the road is offering 1.7 percent and inflation is running at 3.4? No. And that is the wrong comparison, because the same product bought somewhere else this week pays 4.35 percent. The decision is almost never whether to use a certificate of deposit. It is which one, and the spread between the average and the best is larger than the return itself.

Here are the numbers as they stand in September 2026, with the arithmetic done.

The Average CD Is Losing Money

The FDIC publishes a national deposit rate, the average paid by every insured institution weighted by deposits. For September 2026 the 12-month CD average is 1.73 percent. Six months pays 1.41 percent. Five years pays 1.38 percent. Ordinary savings pays 0.37 percent.

Consumer prices rose 3.4 percent in the year to August 2026, on the release published on 11 September.

So the average one-year CD returns about minus 1.7 percent in real terms, before tax. Money put there is shrinking slowly, with a maturity date attached to make the shrinking feel like a plan.

That is not an argument against the product. It is an argument against the average, and the average exists because most balances sit at large banks that have no reason to compete for them.

The Gap Between the Average and the Best

On 22 September 2026 the best available one-year CD paid 4.35 percent. Three and five-year terms paid 4.50. Six months paid 4.30.

Against 3.4 percent inflation, 4.35 percent is a real return of roughly one percent before tax. Thin, positive, and entirely dependent on which institution you walk into.

That is a 2.6 percentage point spread on identical products with identical federal insurance behind them. On $50,000 for a year it is $1,310 for one afternoon of moving the money.

The context matters too. The Federal Reserve raised the target range to 3.75 to 4.00 percent on 16 September. Rates have been going up, which makes long lock-ups less attractive than the headline five-year number suggests. A 4.50 percent rate held for five years is a good deal if rates fall and a poor one if they keep climbing, and nobody gets that call right reliably.

Are CDs Worth It Next to the Alternatives?

Three comparisons decide it, and two of them beat the average CD without locking anything up.

High yield savings. Top accounts paid around 4.10 percent on the same date, fully liquid, no maturity, no penalty. A one-year CD at 4.35 buys you 25 basis points for giving up access to the money. On $50,000 that is $125 a year for the inconvenience.

Treasury bills. The one-year Treasury yielded 4.45 percent on 21 September, above the best CD, backed by the federal government rather than by deposit insurance, and the interest is exempt from state and local income tax. In a high-tax state that exemption is worth more than the rate difference.

Doing nothing. Leaving it in a current account at 0.07 percent is the option most people actually pick, and it is the one that costs the most.

The honest ranking for money you will need within a year: Treasury bills first for anyone in a state with income tax, a top savings account second, a top CD third, and the average CD last, behind the mattress once you adjust for the illusion of having planned.

Which Term, When Rates Are Rising

The yield curve is doing something that changes the usual answer on term length.

On 21 September the three-month Treasury paid 4.17 percent, the six-month 4.27, the one-year 4.45 and the two-year 4.76. Longer money pays more, which is ordinary, and the Fed has been moving upward rather than downward, which is awkward for a five-year lock-up.

The FDIC averages show the same shape from the other end. The 12-month average has climbed from 1.61 percent in January 2026 to 1.73 in September, while the 60-month average sits at 1.38. Banks are paying up for short money and are in no hurry to promise anything for five years. When the institutions that set these rates are unwilling to commit, a saver locking in for half a decade is taking the other side of that view.

A ladder handles the uncertainty without requiring a forecast. Split the money across four maturities, six months out to two years, and reinvest each one as it matures. If rates keep climbing you capture the increases within a year. If they fall you have already fixed part of the balance at today’s numbers.

What a ladder costs is a little yield and an hour of admin twice a year. That is a reasonable price for never having to be right about the direction of interest rates, which almost nobody is, reliably, including the people paid to be.

What the Penalty Actually Costs

The lock-up is real and the price is set by each bank. Federal rules only require a minimum of seven days’ simple interest. In practice, Ally charges 60 days of interest on terms from three to 24 months, rising to 150 days on terms of 49 months or more, and does not permit partial withdrawals. Capital One charges three months of interest on terms up to a year and six months of interest beyond that.

Read that as a rule of thumb: breaking a five-year CD in year one costs most of what it earned. The penalty is charged on interest rather than principal at most institutions, so you rarely lose the deposit itself, but you do lose the reason you bought it.

One small consolation that almost nobody claims: the early withdrawal penalty is deductible. It appears in box 2 of the 1099-INT and comes off your income as an adjustment, with no need to itemise.

The Tax Detail That Catches People

CD interest is taxed as ordinary income in the year it is credited, whether or not you can touch it. A three-year CD that pays everything at maturity still generates a tax bill each year on the interest credited to the account.

At a 32 percent marginal rate, that 4.35 percent becomes about 2.96 percent after federal tax, which against 3.4 percent inflation is back to a small real loss. That is the calculation to run before congratulating yourself on the rate, and it is the reason Treasury bills and tax-advantaged accounts deserve a look first.

Insurance limits are worth two sentences as well. FDIC coverage is $250,000 per depositor, per bank, per ownership category, and accrued interest counts toward it. Several CDs at the same bank in the same category share one limit rather than each having their own.

When a CD Is the Right Answer

Three situations, and they have nothing to do with chasing yield.

Money with a date on it. A tax payment due in March, a deposit for a purchase in eighteen months, a known bill. Matching the maturity to the date is the entire point of the instrument, and the fixed rate removes one variable from a plan that already has enough.

Money you want to make difficult to reach. The penalty is a feature for anyone who has raided their own savings before. Paying 25 basis points over a savings account to buy a psychological barrier is a defensible trade if you know yourself.

Money that must not fall. Capital preservation inside the insurance limit, where a year of market risk is unacceptable because the money is already spoken for.

What a CD is poor at is being a long-term store of wealth. Over decades, a rate that barely clears inflation before tax and loses to it afterwards is a slow erosion dressed as prudence.

Why the Average Is So Low

One piece of plumbing explains the whole spread. The FDIC calculates its national rate, then sets a cap for institutions that are less than well capitalised at the higher of that rate plus 75 basis points, or 120 percent of the comparable Treasury yield plus 75 basis points.

The averages exist for supervisory reasons rather than as a shopping guide. They are dominated by the enormous deposit balances sitting at the largest banks, which pay almost nothing because the money stays anyway.

The 1.73 percent figure measures how much money is parked at institutions with no reason to compete for it, which is the same thing as saying that most savers never move.

The Decision, In One Move

Are CDs worth it? A top-rate CD held for a known short purpose is a sensible, boring instrument, and you should compare it against the one-year Treasury before buying. The average CD is a loss you have agreed to in advance.

The only action that matters is checking today’s rate at three institutions rather than accepting the one your bank offers, because the 2.6 point spread dwarfs every other consideration in this article. Rates move, so the figures above carry their date and will not hold for long, which is exactly why this is a decision to make from current numbers rather than from what you remember. Any answer handed to you already stale is worth as little here as the confidently wrong output discussed in whether AI tools can be trusted on facts.

And if the money in question is retirement money rather than a short-term reserve, the account it sits in matters more than the rate it earns. That is a different decision, and it starts with choosing the right plan structure rather than the right product inside it.