CD Calculator

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YTB-0046 Β· Financial β€Ί Savings & Deposits

CD Calculator (Certificate of Deposit)

Calculate maturity value, APY, and early withdrawal penalty for any CD term

Opening Deposit$10,000
Interest Earnedβ€”
Maturity Valueβ€”
Effective Annual Yield (APY)β€”
If Withdrawn Early (penalty applied)β€”
Principal
Interest

The APY Confusion That Costs CD Investors Real Money

Banks advertise CD rates in two ways β€” and most people don't notice the difference. APR (Annual Percentage Rate) is the simple interest rate. APY (Annual Percentage Yield) is the effective rate after compounding is applied. For a CD compounded daily at 4.00% APR, the APY is actually 4.08%. That 0.08% gap doesn't sound like much, but on a $100,000 5-year CD, it's the difference between earning $21,665 and earning $22,099. When comparing CD offers, always compare APY β€” never APR.

Best CD Rates β€” June 2026 (Verified)

BankTermAPYMin. Deposit
First National Bank of AmericaVariousUp to 4.25%$1,000
TAB Bank1–5 years4.00–4.20%$1,000
Marcus by Goldman Sachs6 months~4.05%$500
LendingClub6 mo – 5 yr3.40–4.15%$500
Forbright Bank9 mo – 5 yr3.25–4.15%$1,000
National Average (all CDs)1 year~1.80%Varies

Rates as of June 2026 per Bankrate. CD rates have been declining since Fed began cutting in late 2024. Lock in current rates before further cuts.

The CD Ladder β€” How Smart Savers Use CDs

The biggest risk with a CD is locking your money away right before rates rise. The solution is a CD ladder: instead of putting $20,000 into one 5-year CD, you split it across five CDs of different terms. Here's a real $20,000 example:

CDAmountTermAPYMatures
Rung 1$4,0001 year4.05%June 2027
Rung 2$4,0002 years3.85%June 2028
Rung 3$4,0003 years4.00%June 2029
Rung 4$4,0004 years3.90%June 2030
Rung 5$4,0005 years3.75%June 2031

Every year, one CD matures. If rates are higher, you reinvest at the new rate. If rates are lower, you still have longer-term CDs locked at the better rate. This gives you liquidity every 12 months without sacrificing all your yield to a savings account.

Early Withdrawal Penalties β€” The Hidden Cost

Breaking a CD early is expensive. On a 1-year CD at 4.05% with a 6-month interest penalty, withdrawing after just 3 months means you lose more than you earned β€” you get back less than your opening deposit. Common penalties by term:

  • 3–6 month CDs: 3 months of interest penalty
  • 1-year CDs: 6 months of interest penalty
  • 2–3 year CDs: 6–12 months of interest penalty
  • 4–5 year CDs: 12–18 months of interest penalty

No-penalty CDs exist (Marcus, Ally, and others offer them) but typically offer 0.25–0.50% lower APY than standard CDs. If you have any doubt about needing the money, a no-penalty CD or HYSA is smarter than a standard CD.

CD vs High-Yield Savings Account in 2026

FactorCDHYSA
Rate certaintyFixed β€” locked for termVariable β€” changes with Fed rate
Current best rate~4.25% APY~4.50% APY (SoFi w/ direct deposit)
LiquidityLocked (penalty to exit)Fully liquid β€” withdraw anytime
Best forMoney you won't need for a defined periodEmergency fund, money you may need
FDIC insuredYes β€” up to $250,000Yes β€” up to $250,000

With HYSAs currently offering 4.25–4.50% and CDs offering 4.00–4.25%, the liquidity advantage of an HYSA is hard to ignore unless you specifically need the rate certainty of a CD.

πŸ’‘ Tax note: CD interest is taxable as ordinary income in the year it is credited, not when you withdraw the CD. If your CD pays interest annually, you report and pay tax on each year's interest β€” even if you don't receive the cash until maturity. Plan for this with a tax-advantaged account (like a CD inside a Roth IRA) if you're in a high bracket.

Frequently Asked Questions

What happens when a CD matures? οΌ‹
Most banks give you a 7–10 day grace period after maturity. During this window you can withdraw your money, add funds, or change terms penalty-free. If you do nothing, the CD automatically rolls over for the same term at whatever rate the bank is offering that day β€” which may be very different from your original rate. Set a calendar reminder the week before your CD matures.
Can I add more money to a CD after opening it? οΌ‹
Generally no β€” standard CDs are closed after the initial deposit. However, "add-on CDs" (offered by some credit unions and smaller banks) allow additional deposits during the term. If you expect to have more money to save in coming months, an HYSA or a series of smaller CDs may serve you better than one large fixed CD.
Are CDs safe if the bank fails? οΌ‹
Yes, if your bank is FDIC-insured (all major US banks are). FDIC covers up to $250,000 per depositor, per bank, per account category. If you have more than $250,000 to deposit, spread it across multiple banks or use different account ownership types (individual, joint, IRA) to maximize coverage. Credit union CDs are insured by NCUA with the same $250,000 limit.
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