Enter your deposit, the current CD APY, the months remaining, the early-withdrawal penalty, and a replacement APY, then see the penalty, the interest if you hold versus break, the net delta, and the replacement APY where breaking breaks even.
About the CD early withdrawal breakeven calculator
The CD early withdrawal breakeven calculator helps you decide whether to break a certificate of deposit early and move the money to a higher-rate account. Enter your deposit amount, the current CD APY, the months remaining, the early-withdrawal penalty (as days or months of interest), and the replacement APY you could earn now. The tool returns the estimated penalty, the interest you would earn by holding to maturity, the net interest if you break and reinvest over the same period, the net break-versus-hold delta, and the replacement APY at which breaking exactly breaks even.
This is an educational estimate, not financial, tax, or investment advice, and not an offer or a rate quote. It only compares the numbers you enter over the remaining term of your current CD. It does not collect your bank name, account number, balance, or application. Bank early-withdrawal penalty formulas and interest crediting vary by institution, so confirm the exact terms in your deposit agreement before you act.
How to use
- Enter your CD deposit amount.
- Enter the current CD APY and the months remaining.
- Choose whether the penalty is stated in days or months of interest, then enter it.
- Enter the replacement APY you could earn now.
- Select Calculate breakeven to see the penalty, the hold-versus-break math, and the breakeven replacement rate.
Worked examples
A higher replacement rate can beat the penalty
On a $10,000 CD at 2% with 12 months left and a 3-month interest penalty (about $50), moving to a 5% account nets about $250 more than holding.
A small rate bump may not be worth it
If the replacement rate is only a little higher, the penalty can outweigh the extra interest, so keeping the CD to maturity comes out ahead.
The breakeven rate tells you the threshold
The breakeven replacement APY is the rate at which breaking and holding come out even. Above it breaking wins; below it holding wins.
Frequently asked questions
- How is the breakeven replacement APY calculated?
- It is the replacement APY at which the net interest from breaking the CD, reinvesting, and paying the penalty exactly equals the interest from holding the CD to maturity over the same remaining term. Above that rate, breaking and reinvesting comes out ahead; below it, holding comes out ahead.
- How is the early-withdrawal penalty estimated?
- Banks usually state the penalty as a number of days or months of interest at the CD's rate. The tool multiplies your deposit and current APY by that many days or months. Your bank's exact formula may differ, including whether it can reduce your principal, so check your deposit agreement.
- Is this financial advice?
- No. This is a free educational estimate. It does not recommend a specific bank, CD, or account, quote a rate, or replace guidance from a licensed professional. Your actual result depends on your bank's penalty terms, interest crediting, and the rates you can get.
- Does it store the numbers I enter?
- No. The calculator runs entirely in your browser. The amounts you enter are not saved or sent to a server, and the tool collects no bank name, account number, balance, or contact details.
- What replacement APY should I use?
- Use the rate you could realistically get now for the same money, such as a no-penalty CD, a new CD, or a high-yield savings account. The comparison is most useful when the replacement rate is one you can actually open.
- Does it work on mobile?
- Yes. The calculator is built to work on phones and desktops.
- Is the CD early withdrawal breakeven calculator free?
- Yes. It is free to use and does not require an account.
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