"Which bank has the best CD rates" is a real question with a real answer, and the answer is not a list of banks. Any list is a snapshot. The rate a bank offers on a new certificate of deposit changes at the bank's discretion, usually with no announcement, and a table compiled on Monday can be wrong by Thursday. The certificate you already hold is fixed for its term. The one you are shopping for is not fixed until you buy it.
So this page does not print a bank's rate — for the reason set out in envelope budgeting and applied to savings accounts in finding the real top savings rate. What it does instead is more durable: it shows where the official baseline lives, what a CD's advertised yield leaves out, and how to check any rate table against the institution in about five minutes. That skill keeps working after every list on the internet has gone stale.
Why no two "best CD rates" lists agree
Put three well-known finance sites side by side on the same afternoon and they will name different winners. They are not careless. They are measuring different things, and a CD table has more hidden assumptions than a savings-account table:
- The term bucket. One site's "1-year" column is 12 months only; another's includes 10-, 11-, 13- and 14-month promotional terms. Odd-length "specials" are how banks advertise a high rate without repricing their whole ladder, and whether they belong in the 1-year row is an editorial choice.
- Who is allowed to buy it. Credit unions are included by some lists and excluded by others, because membership is required. So are accounts open only to residents of certain states, or only to existing customers.
- The minimum. A rate that needs $25,000 to earn it is not comparable to one that needs $500, but both sit in one column.
- Bank CDs versus brokered CDs. Certificates bought through a brokerage account are a different instrument with different exit terms. Some lists mix them in.
- Jumbo tiers. A rate that applies only at $100,000 and above may or may not be flagged.
- Update cadence. Daily, weekly, or when somebody remembers.
The consequence is worth stating plainly: there is no single correct answer to "the best CD rate right now", and any page presenting one has compressed away the assumptions that produced it. The useful question is which certificate pays the most for your amount, your date and your exit needs — and that one is answerable.
The baseline nobody quotes: the FDIC's national CD rates
The Federal Deposit Insurance Corporation publishes national deposit rates by product and term every month, at fdic.gov/national-rates-and-rate-caps. It is the one official, dated, methodologically stated baseline in this subject, and almost no comparison site mentions it.
The CD rows of the table effective 17 August 2026 were as follows. The Treasury yield column is on the same FDIC table and is the market rate for the same term with no credit risk:
| Term | National CD rate (%) | Treasury yield, same term (%) |
|---|---|---|
| 1 month | 0.22 | 3.78 |
| 3 months | 1.14 | 3.83 |
| 6 months | 1.41 | 3.98 |
| 12 months | 1.71 | 4.08 |
| 24 months | 1.57 | 4.28 |
| 36 months | 1.34 | 4.34 |
| 48 months | 1.27 | 4.34 |
| 60 months | 1.36 | 4.45 |
Two things in that table do most of the work of this article.
The average is far below the market. On the same date, the average 12-month CD paid less than half the 12-month Treasury yield, and the average 6-month CD paid about a third of the 6-month yield. That is not because CDs are a bad product. It is because of how the average is built.
The average falls as the term lengthens. The 24-month figure is below the 12-month figure, and the 36- and 48-month figures are lower still, while Treasury yields rise with term. At the national average, locking money up for longer bought nothing in August 2026. Whether a longer lock pays a premium at the institution in front of you is therefore something to check, not assume — the question the 1-year page takes up.
Why the national average looks nothing like advertised rates
The FDIC's own definition: the national rate is "the average of rates paid by all insured depository institutions and credit unions for which data is available, with rates weighted by each institution's share of domestic deposits." Weighted by deposits. Most deposits in the United States sit at large branch-based banks that pay very little on CDs, so those banks dominate the average by sheer weight of money. The institutions competing for your deposit are a small, unrepresentative slice.
The tier detail matters too: the FDIC's CD figures "represent an average of the $10,000 and $100,000 product tiers", so the number is neither a small-saver rate nor a jumbo rate but a blend of the two. That blending is also the reason the jumbo premium is smaller than most people expect, which is its own page.
The page also publishes a rate cap column, which is not shown above on purpose. It is a supervisory ceiling that limits what a less-than-well-capitalised bank may offer, not a yield anyone can earn, and mistaking one for the other is the most common error on that page. It is left out here so it cannot be misread.
So the FDIC number is not the rate to chase. It is the floor to measure against. A certificate paying near the national average is not a competitive CD whatever its marketing says, and the Treasury yield for the same term is the honest ceiling to compare it with — after the tax adjustment that HYSA vs CD vs T-bills walks through.
"Best" and "high-yield" are not defined anywhere
No statute or regulation defines a high-yield CD or a best rate. Truth in Savings — Regulation DD — governs how a rate must be disclosed: the annual percentage yield and the interest rate must both be stated, using those words, together with the maturity date, the penalty terms and the renewal policy. It says nothing about what the rate has to be. Any certificate can be marketed as high-yield, and it stays marketed that way after the bank has quietly repriced.
The working definition worth using is comparative: a CD is competitive if it pays close to the Treasury yield for its term, and it stops being competitive the day it does not. That is a test you can apply on any date. A marketing label is not.
Five things a CD's APY leaves out
The number in the table and the money you actually keep differ for reasons that are all disclosed and rarely prominent.
1. The exit price. Every fixed-term CD carries an early-withdrawal penalty, and its size varies more between banks than the rates do — from a few weeks' interest to more than a year's, and at some institutions it can reach into principal. A slightly lower rate with a mild penalty often beats a slightly higher rate with a harsh one, and the table cannot show you that. The penalty page prices it properly.
2. What happens at maturity. Most CDs renew automatically, into the same term, at whatever rate the bank offers that day. For a certificate longer than a year, Regulation DD requires the bank to notify you at least 30 calendar days before maturity (or 20 days before the end of a grace period of at least five days). For one year or less, the notice rules are lighter. Either way the grace period is short — often around ten days — and a missed one rolls your money into a term you did not choose at a rate you did not check. The advertised APY is for the first term only.
3. The minimum, and the tier. Some rates need a minimum to earn them; some step up at balance thresholds; some promotional rates are capped. Read which balance the headline applies to.
4. Whether interest stays in. If the CD lets you withdraw interest before maturity, the disclosed APY "assumes interest remains on deposit until maturity and that a withdrawal will reduce earnings" — the regulation's own words. Taking the interest monthly is a legitimate choice for income, and it means you will not earn the number in the table.
5. The promotional term. A 13-month special at an attractive rate usually renews into a standard 12-month certificate at the standard rate. The special is real for 13 months. The comparison that matters is what your money is doing in month 14 if you are not paying attention.
Verifying a rate in five minutes
Do this at the institution's own site, not at an aggregator:
- Find the certificate on the institution's own rate page. If it disagrees with the table you came from, the institution's page governs.
- Read the APY, not the interest rate. The APY includes compounding and is the only comparable figure — APR vs APY explains why.
- Confirm the term is the term you need. A 14-month special is not a 1-year CD if your money is needed in 12.
- Find the early-withdrawal penalty and its formula. Days of interest, or months of interest, and whether it can touch principal. Regulation DD requires this to be disclosed before you open the account; if you cannot find it, that is your answer about the institution.
- Find the renewal policy and the grace period. Automatic or not; how many days; and whether you can set it to pay out rather than roll.
- Find the minimum and the balance tier the rate applies to.
- Confirm the insurance and the institution holding the money. For a bank, FDIC coverage in the bank's own name; for a credit union, NCUA coverage — they are different agencies and the insurance page covers both. If the certificate is being bought through a brokerage, the issuing bank is the one that matters, not the brokerage.
Five minutes. It is more than most people spend, and it is the only step in the process that cannot go stale.
Bank, credit union, or brokerage
Three places sell certificates, and the table rarely says which one it is showing.
A bank CD is the simple case: your money at one insured bank, a fixed term, a disclosed penalty. A credit union certificate is the same product under different vocabulary — dividends rather than interest, declared rather than promised — and behind a membership requirement that is usually easier to meet than the word suggests; the credit union page deals with the membership question directly. A brokered CD is bought through a brokerage account, cannot usually be redeemed early at all, and is sold on a secondary market instead — at whatever price the market offers, which can be less than you paid if rates have risen. It is a fixed-income security that happens to be a deposit, and it belongs in a different comparison from the other two.
If you want the rate lock without the lock itself, the no-penalty CD is the structure to read about, and if you want fixed rates with money never more than a few months away, the CD ladder is the boring answer that works.
What a difference in rate is actually worth
Rate-shopping is worth doing, and it has a point at which it stops paying. The arithmetic on round numbers, as illustrations of a spread rather than market rates, before and after tax at an illustrative 22% marginal rate:
| Balance | +0.25 point, per year | +0.50 point, per year | +0.50 point after 22% tax |
|---|---|---|---|
| $10,000 | $25.00 | $50.00 | $39.00 |
| $25,000 | $62.50 | $125.00 | $97.50 |
| $50,000 | $125.00 | $250.00 | $195.00 |
CD interest is ordinary income, so the last column is closer to what you keep. On $10,000, a quarter-point is less than the cost of an hour of your time, and the penalty terms should decide the choice instead. On $50,000 a half-point is real money, and at that balance the comparison is no longer only between CDs — Treasury bills enter it, with no early-withdrawal penalty and no state income tax on the interest, and in an income-tax state a lower Treasury yield can net more than a higher CD rate. That arithmetic is on HYSA vs CD vs T-bills and it is the page to read before optimising a CD rate on a five-figure balance.
What to actually do
Decide the date before the rate. A CD is a promise to leave money alone until a date. If the date is not real — if the money is an emergency fund, or you are not sure — the rate is irrelevant, because the exit penalty will eat it. Fixed-term money is for known expenses with known dates.
Measure any offer against two numbers, not against other offers. The FDIC national rate for the term tells you whether it is competitive at all. The Treasury yield for the term, adjusted for your state tax, tells you whether a CD is the right vehicle. Both are on one FDIC page, dated, and refreshed monthly.
Read the penalty and the renewal terms before the rate. Those two clauses determine what the certificate costs you if life changes and what it earns you if you forget about it. Between two CDs a tenth of a point apart, they decide.
Write the maturity date down somewhere you will see it. Not in the bank's app. In your own calendar, two weeks before the date, so the grace period is a decision and not an accident.
Verify at the institution, never at a table. Aggregator lists are useful for finding candidates and unreliable for the number. The bank's own page is the one that governs.
Size the effort to the balance. Below about $10,000, pick a competitive certificate at an institution you already trust, with a mild penalty and a renewal you have set deliberately, and stop. Above that, shop properly — but shop the exit terms and the after-tax yield, not the headline, because the headline is the one number in the table that will have changed by the time you read it.
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