How to Compare CD Rates in 2026: APY, Penalties, FDIC Limits and Real After-Tax Yield

To compare CD rates correctly in the US, line up the same term, compare APY rather than the stated rate, subtract the early-withdrawal penalty you might face, and confirm FDIC or NCUA coverage up to $250,000. Then turn the APY into an after-tax number, since CD interest is taxed as ordinary income and a 4.5% CD can feel like 3.5% in a 22% bracket.

Rates move every week, so this guide does not quote today’s leaderboard. It shows how to read an offer in about five minutes, the trade-offs between bank CDs and brokered CDs, and the mistakes I see most often. For live numbers, check the FDIC’s national rates page and the banks’ own disclosure pages the day you buy. I write from a US saver’s point of view, as of October 2026.

How to compare CD rates without fooling yourself

Start by locking down what you are comparing. A 12-month CD from one bank and a 13-month “special” from another are different products, and the special often pays more simply because it is longer.

Run this sequence on every offer:

1. Same term. 6, 12 or 18 months, no mixing.
2. APY, not “interest rate.” APY includes compounding.
3. Minimum deposit. Some top rates need $5,000 or $25,000.
4. Penalty and callable terms. Both are in the account disclosure.
5. Insurance. Bank under the FDIC, credit union under the NCUA.
6. Renewal rules. Many CDs roll over automatically into whatever the bank is paying at maturity, which is rarely the rate you signed up for.

Number six catches people constantly. A CD matures, there is a grace period of around 7 to 10 days, and if you do nothing it renews for the same term at the current rate. Put the maturity date in your calendar with a reminder a week earlier.

What does APY actually tell you?

APY is the percentage you earn in one year after compounding, assuming interest stays in the account. The stated rate is the nominal rate before compounding. For a 12-month CD the gap is small, but it matters for multi-year terms and for banks that compound daily versus monthly.

Here is what $10,000 does at different APYs for one year, with the federal tax you’d owe in a typical bracket. The 22% column assumes federal tax only. State tax takes a further bite in most states.

APY	Interest on $10,000	After tax at 12%	After tax at 22%	After tax at 24%
3.50%	$350	$308	$273	$266
4.00%	$400	$352	$312	$304
4.50%	$450	$396	$351	$342
5.00%	$500	$440	$390	$380

Look at the 22% column. Moving from 3.5% to 4.5% adds $100 before tax and $78 after tax. That is real money on $10,000, but it is also why chasing 0.1% differences across banks wastes time. The decision that matters is whether the CD beats the savings account you already have, and whether the term fits your plans.

Which matters more: the rate or the early-withdrawal penalty?

If there is any real chance you will need the money, the penalty matters more. Penalties are written as days or months of interest, and they apply even if you only withdraw part of the principal.

Typical structures look like this. They vary by bank, so treat the numbers as illustrative and read your own disclosure.

Term	Common penalty	On $10,000 at 4.5% APY
Under 12 months	60 to 90 days of interest	about $74 to $111
12 to 36 months	180 days of interest	about $222
Over 36 months	365 days of interest	about $450

The danger is breaking the CD early in its life. If you withdraw after two months of a CD that charges 180 days of interest, you have not earned enough to cover the penalty, and some banks will take the difference from your principal. That means you can leave with less than you put in.

Here is a failure pattern worth remembering. A saver chases a 24-month CD at the top of a rate list, then needs $8,000 for a car repair 5 months later. The penalty is 180 days of interest, which exceeds what the CD has earned. The top-rate CD ends up costing more than a plain high-yield savings account would have. A split would have avoided the whole thing: keep three to six months of living costs in savings, and only lock money you can name a date for. That logic is the same one in the CD vs Treasury vs HYSA comparison, which is worth reading before you pick a term.

Is FDIC coverage the same everywhere?

The standard insurance amount is $250,000 per depositor, per insured bank, per ownership category. Credit unions have the same coverage through the NCUA. That is the baseline, and a few details change how far it stretches.

• Ownership categories count separately: single accounts, joint accounts, certain retirement accounts and trust accounts.
• Brokered CDs are insured as long as the issuing bank is FDIC-insured. The coverage is attached to the bank, not the broker, but you must hold the CD in a way that keeps pass-through coverage intact.
• Fintech apps that sweep money into partner banks only give you coverage at those banks. Check which banks hold your money and the aggregate balance at each.

Anyone with more than $250,000 in cash should map exposure per bank. A spreadsheet with the bank name, balance and ownership category is enough. If you are in that range, a brokered CD ladder is one way to spread the money across many issuers.

Brokered CD vs bank CD: which one fits you?

A bank CD is bought directly from a bank. A brokered CD is issued by a bank but sold through a brokerage, like Fidelity or Schwab, which lists offerings from many banks in one place.

Feature	Bank CD	Brokered CD
Where you buy	Directly from the bank	Through a brokerage account
Early exit	Penalty to the bank	Sell on a secondary market, no penalty but price can fall
Rate selection	One bank’s offer	Many banks side by side
Coverage	FDIC or NCUA at that bank	FDIC at the issuing bank, up to limits
Interest payment	Usually to the CD or linked account	Often paid to the brokerage cash account
Callable risk	Uncommon	More common, check the label

Brokered CDs usually win on convenience and rate shopping. The trade-off is price risk: if rates rise after you buy, your CD is worth less on the secondary market, and if you sell you may take a loss. Plan to hold to maturity and you avoid the issue. Also read the word “callable” in the description. Callable brokered CDs pay a higher yield because the issuer can end them early.

If your goal is simply the best rate for a term you will hold, I would compare one or two direct banks against a brokered list, then pick the better APY. It is not worth moving money across five institutions for $15.

How should you use a CD ladder?

A ladder spreads your money over staggered maturities. Say you have $20,000 and build four rungs of $5,000 in 6, 12, 18 and 24 months. When the first one matures you either use the cash or reinvest it into a new 24-month CD, which keeps the ladder rolling with one rung maturing every six months.

It does two jobs. It gives you scheduled access to cash without penalties, and it means you never lock all your money at one rate. When rates are uncertain, that is the practical answer to “should I go short or long?” Do both.

Keep the ladder to what you do not need within six months. Money for next month’s rent belongs in a savings account. For longer-term savings goals, see how CDs fit alongside other accounts in the savings vs deposit vs money market guide.

How is CD interest taxed?

CD interest is ordinary income. Your bank sends Form 1099-INT if you earned $10 or more, and you report it on your return whether or not the form arrives. You pay tax for the year the interest is credited, not when the CD matures, which means a multi-year CD can generate a tax bill before you ever touch the interest.

Some practical consequences:

• High earners feel it most. In the 32% bracket and above, a 5% CD yields about 3.4% after federal tax.
• State income tax applies in most states. Treasury interest is exempt from state tax, which can tilt the math for residents of high-tax states.
• CDs inside a traditional IRA grow tax-deferred; inside a Roth IRA, qualified withdrawals are tax-free. That is often the better place for interest-heavy holdings if you have contribution room.
• Tax-exempt municipal bonds are another choice for people in high brackets. The municipal bond guide walks through the taxable-equivalent yield math.

For account placement decisions in general, Tax-Efficient Dividend Investing covers how to decide what to hold in taxable versus retirement accounts, and 401(k) vs IRA helps you decide how much contribution room you have to work with.

When is a CD the wrong tool?

CDs are a bad fit when:

• The money is your emergency fund. A savings account with no penalty is the right home.
• You want growth beyond inflation over 10 years. A CD protects principal and locks a yield, it does not build wealth.
• You are chasing a promotional rate from an unfamiliar institution with no insurance.
• You haven’t confirmed the rate is competitive with a high-yield savings account. Sometimes the best savings accounts pay within a few tenths of a point of a 12-month CD, and you get full liquidity.

If a CD does not beat your savings account by at least about 0.25 to 0.5 percentage points, I would skip the lock-in. The flexibility is worth more than the difference. To think about where your cash sits across all accounts, the 7 realistic ways to save money guide is a decent place to start.

What about no-penalty and promotional CDs?

No-penalty CDs let you withdraw the full balance after an initial waiting period, often a week, without losing interest. The price of that flexibility is usually a rate a bit below a standard CD of the same term. They suit a person who thinks rates may rise and wants to move money later, or someone parking cash for a purchase with an uncertain date.

Promotional CDs, the odd-length terms like 7, 11 or 13 months, are marketing tools. The rate can be strong, but check what happens at maturity. If the bank renews you into a standard 12-month CD at a weaker rate, the advantage disappears the day you forget to act. Read the renewal clause before you fund the account, and set the reminder on the day you open it, not the day you remember.

A five-minute checklist before you buy

• Same term across every offer
• APY recorded for each, not the stated rate
• Minimum deposit and any promotional conditions
• Early-withdrawal penalty written down in days or months
• Callable or non-callable
• FDIC or NCUA coverage and your balance at that bank
• Renewal terms and the maturity date saved on your calendar
• After-tax APY at your bracket, plus state tax if it applies

The best CD for you is the one whose term matches a date you can name, whose APY beats your savings account by a meaningful margin, and whose penalty you could survive paying. Everything else is detail.

This article is general information, not tax, legal or investment advice. Rates, penalties, coverage limits and tax rules change; confirm current terms with the issuing institution, the FDIC or NCUA, and a qualified tax professional before you buy.