What happens when a CD matures?

When a CD reaches its maturity date, you typically have a short grace period — usually 7–10 days — to decide what to do with the funds. Your options are: (1) Withdraw the full amount including interest and transfer to your checking or savings account; (2) Renew the CD for the same term at whatever the current rate is at your bank — rates may be higher or lower than your original rate; (3) Rollover into a different term CD if you want to adjust your strategy. If you do nothing during the grace period, most banks will automatically renew the CD for the same term at the current rate. It is worth setting a calendar reminder before your CD matures so you can actively decide rather than letting it auto-renew at a potentially lower rate.

What is the early withdrawal penalty and when does it apply?

An early withdrawal penalty (EWP) is a fee charged by the bank if you withdraw your CD funds before the maturity date. The penalty is typically expressed as a number of months of interest — for example, '6 months of interest' means you forfeit interest equal to 6 months of the CD's stated APY on the principal. For a $10,000 CD at 5.25% APY with a 6-month EWP: penalty = $10,000 × 5.25% × 6/12 = $262.50. Note that the EWP can exceed the interest earned if you withdraw very early — for instance, breaking a 1-year CD after only 2 months when the penalty is 6 months of interest means you actually lose principal. No-penalty CDs (offered by some online banks) have no EWP but typically offer slightly lower rates.

What is a CD ladder and why use one?

A CD ladder is a strategy where you split your total deposit across multiple CDs with staggered maturity dates — for example, 25% each in 1-year, 2-year, 3-year, and 4-year CDs. When the 1-year CD matures, you roll it into a new 4-year CD at the then-current rate. Each subsequent year, another CD matures and gets reinvested. The benefits are threefold: (1) Regular liquidity — one CD matures each year so you always have access to a portion of your funds; (2) Rate diversification — you capture a mix of short-term and long-term rates rather than being locked into a single rate; (3) Rising rate protection — if rates increase, your maturing CDs get reinvested at higher rates rather than having all your money locked at a lower rate.

How is CD interest taxed?

CD interest is taxed as ordinary income in the year it accrues, not when you withdraw it. This means for a multi-year CD, you owe tax each year even though the money remains locked in the CD. Your bank will send you a Form 1099-INT each year showing the interest earned that year. At a 22% federal tax rate, you will owe approximately $115.50 in tax on $525 of CD interest — this money must come from elsewhere since the CD principal is locked. One strategy to avoid this annual tax complication: use CDs with terms of 12 months or less, so the tax event coincides with the maturity and payout. Alternatively, hold CDs inside a Roth IRA where interest grows and is ultimately withdrawn tax-free.

Should I choose a CD or a high-yield savings account (HYSA)?

The main trade-off is rate certainty vs flexibility. A CD locks in a rate for the full term — if rates fall, you benefit; if rates rise, you cannot access the better rate without paying the EWP. A HYSA rate is variable — if the Fed cuts rates, your HYSA rate falls, but if rates rise, your HYSA rate rises too. For money you definitely will not need for a fixed period (e.g. a down payment you are saving toward a specific date), a CD often offers a slightly higher rate and the certainty of knowing exactly what you will earn. For emergency funds or savings with uncertain timing needs, a HYSA is better due to full liquidity with no penalty. Many savers use both: a HYSA for their emergency fund and liquid savings, and CDs for money they know they will not need for 6–24 months.

CD Calculator — Certificate of Deposit Interest & Maturity Value

A Certificate of Deposit (CD) is a time deposit that locks your money for a fixed term — typically 3 months to 5 years — in exchange for a guaranteed interest rate that is usually higher than a savings account. CDs are FDIC-insured up to $250,000, making them one of the safest ways to earn a fixed r...

CD CALCULATOR

Deposit Amount

Most CDs require $500–$1,000 minimum

CD APY (%)

Enter the APY as advertised by your bank · Top CD rates 2025: 4.75–5.40%

CD Term

Compounding Frequency

Early Withdrawal Penalty

Typical: 3–6 months interest for 1-yr CDs · 6–12 months for longer terms

Income Tax Rate

CD interest is taxed as ordinary income each year it accrues

MATURITY VALUE

$10,525.00

INTEREST EARNED

$525.00

APY

5.250%

AFTER-TAX BAL.

$10,409.50

NET W/D EARLY

$10,393.75

MATURITY CHART

MATURITY VALUE — 12 MONTHS

$10,525.00

INTEREST

$525.00

APY

5.250%

AFTER-TAX BAL.

$10,409.50

BALANCE OVER TERM

$10,042.73

$10,085.65

$10,128.74

$10,172.02

$10,215.49

$10,259.14

$10,302.98

$10,347.01

$10,391.22

M10

$10,435.62

M11

$10,480.22

M12

$10,525.00

MATURITY COMPOSITION

PRINCIPAL

DAILY INTEREST

$1.44

MONTHLY INTEREST

$43.75

EARLY W/D PENALTY

$131.25

TAX OWED

$115.50

Live chart · updates as you type

Created with❤️byeaglecalculator.com

CD BREAKDOWN

Principal

$10,000.00

Total Interest

$525.00

Tax Owed

$115.50

Net at Maturity

$10,409.50

EWP Amount

$131.25

Net If Early

$10,393.75

CD LADDER BUILDER

A CD ladder splits your money across multiple CDs with staggered maturity dates — giving you regular access to funds while maximising returns. Click Show to build yours.

HOW TO USE

1
Enter your CD deposit amount — most banks require $500–$1,000 minimum, with some requiring $2,500–$10,000 for the best rates.
2
Enter the APY exactly as advertised by your bank. Unlike savings accounts where rates can change at any time, a CD rate is locked for the full term.
3
Select your CD term using the preset buttons (3, 6, 9, 12, 18, 24, 36, 48, or 60 months) or choose Custom to enter any term in months.
4
Select the compounding frequency. Most CDs compound daily. The difference between daily and monthly compounding is small but the calculator handles both correctly.
5
Select your early withdrawal penalty type — this is the penalty the bank charges if you withdraw before maturity. Typical penalties: 3 months interest for short-term CDs, 6–12 months for longer terms. No-penalty CDs sacrifice some rate for this flexibility.
6
Select your income tax rate to see how much of your CD interest will go to taxes. CD interest is taxable as ordinary income each year it accrues, even if you do not withdraw it.
7
Scroll down to use the CD Ladder Builder — enter your own deposits, rates, and terms to design a personalised ladder strategy.

WORKED EXAMPLE

Example: $10,000 deposit, 5.25% APY, 12-month term, daily compounding, 6-month EWP, 22% tax. Maturity value = $10,000 × (1.0525)^1 = $10,525.00. Total interest = $525.00. Tax at 22% = $115.50. After-tax balance = $10,409.50. Early withdrawal penalty (6 months interest) = $10,000 × 5.25% × 6/12 = $262.50. Net if withdrawn early = $10,525 − $262.50 = $10,262.50. Daily interest = $525 / 365 = $1.44/day. Monthly interest = $525 / 12 = $43.75/month.

REFERENCE FORMULAS

FORMULA REFERENCE TABLE

NAME	FORMULA	DESCRIPTION
CD Maturity Value	FV = P × (1 + APY)^(t/12)	P = principal, APY = annual yield as decimal, t = term in months
APR from APY	APR = n × ((1 + APY)^(1/n) − 1)	Convert APY to APR for compounding calculation, n = compounding frequency
Monthly Rate	i_m = (1 + APR/n)^(n/12) − 1	Effective monthly compounding rate
EWP Amount	Penalty = P × APY × (EWP_months / 12)	Early withdrawal penalty in dollars — based on months of interest forfeited
Net Early Value	Net = FV − Penalty	Amount received if CD is broken before maturity
Tax on Interest	Tax = Total Interest × Marginal Rate	CD interest is ordinary income — taxable each year it accrues
CD Ladder Rung	FV = Deposit × (1 + APY)^(Term_years)	Maturity value of each rung in a CD ladder

FREQUENTLY ASKED QUESTIONS

RELATED CALCULATORS

Budget Calculator

Calculate instantly →

High-Yield Savings Calculator

Calculate instantly →

Savings Account Interest Calculator

Calculate instantly →

Break-Even Point Calculator

Calculate instantly →

MORE SAVINGS CALCULATORS

Savings Account Interest Calculator

Calculate instantly →

High-Yield Savings Calculator

Calculate instantly →

Budget Calculator

Calculate instantly →

Was this calculator helpful?

Disclaimer: This calculator is for informational purposes only. CD rates and early withdrawal penalties vary by institution. FDIC insures deposits up to $250,000. This is not financial advice.

Last updated: April 29, 2026 · Formula verified by EagleCalculator team · Eagle-eyed accuracy for every calculation.