CD Early Withdrawal Penalty Calculator
Find out what it would actually cost, in dollars, to break your CD before it matures — and whether the penalty would eat into your original deposit. This calculator handles both early withdrawal scenarios.
Check your CD's account agreement for the exact figure. As a rough illustration, penalties commonly range from about 3 months of interest on CDs under a year, up to 12–18 months on CDs of 4–5 years or longer, but this varies significantly by bank.
Found a better rate? Enter it to see whether breaking this CD and reinvesting actually pays off.
| Interest earned to date | $0.00 |
| Estimated penalty | $0.00 |
Is Breaking It Worth It?
| Stay to original maturity | $0.00 |
| Break now, reinvest at the new rate | $0.00 |
This is a general estimate, not financial, investment, or tax advice.
How to Use This Calculator
Enter the CD's original deposit and its APY. Enter the full term length, then how many months you've actually held it so far. Set how many months of penalty your bank charges for early withdrawal (check your CD's disclosure -- this varies by term and bank). The result shows interest earned so far, the penalty cost, and your net payout if you withdrew today, including a warning if the penalty would eat into your original deposit.
Table of contents
Why This Calculator Uses Two Different Formulas
The interest your CD actually earned uses compound growth, the same formula behind the CD Calculator: Principal × (1 + APY)^(months held / 12). The penalty itself works differently — banks typically calculate it as simple interest on your original principal, not on your grown balance: Principal × (APY / 12) × penalty months. Using compound interest for the penalty would overstate the real cost, so this tool keeps the two calculations separate, matching how banks actually apply the penalty.
Worked Example
A $10,000 CD at 4.50% APY, on a 24-month term, withdrawn after 6 months, with a 6-month penalty: interest earned to date is $222.52, the penalty is $225.00, and the net payout is $9,997.52 — $2.48 below the original deposit. This is the default example pre-filled above, and it's a real, common scenario: withdrawing early enough that the penalty exceeds what you've earned so far.
Frequently Asked Questions
How is the CD early withdrawal penalty calculated?
Most banks calculate it as simple interest on your original principal: your deposit multiplied by your monthly-equivalent rate, multiplied by however many months of interest the penalty represents.
Can the penalty be bigger than the interest I've earned?
Yes, and it's common if you withdraw early enough in the term. When the penalty months exceed the months you've actually held the CD, the penalty can exceed your earned interest and reduce your original principal, not just your gains.
Does every bank use the same penalty schedule?
No. Penalty schedules vary significantly by institution and by CD term length. Your specific CD's account agreement is the only source that reflects your actual terms.
Are there CDs with no early withdrawal penalty?
Yes, these are commonly called no-penalty CDs. They typically offer a somewhat lower rate in exchange for the ability to withdraw early without a fee. See High-Yield Savings vs. CDs for more on this trade-off.
Should I break my CD to get a higher rate somewhere else?
Enter a new APY above to see the actual comparison for your numbers. Late in a CD's term, even a meaningfully higher new rate often can't make up for the penalty and the time already invested -- this calculator runs that math directly rather than leaving it to guesswork.
Sources
- Penalty formula (simple interest on principal) — MoneyRates
- Penalty can exceed interest earned and reduce principal — CalcBee
- No-penalty CDs as an alternative, typically at a lower rate — DepositAccounts
How This Calculator Is Verified
Built by Cedrick Reese. Every formula on this page is checked against multiple independent sources before publishing, and cross-verified against real calculations before this page went live -- not just written once and trusted.
Last reviewed: August 25, 2026