Financial Tools

CD Calculator

What a certificate of deposit pays at a given APY, what the early withdrawal penalty costs if you break it, and what the same APY looks like as a nominal rate.

Deposit

APY (% as the bank advertises it)

Term

Early Withdrawal Penalty (months of interest, from your CD disclosure)

Your Tax Rate on Interest (percent, CD interest is ordinary income)

Values shown are examples, not an offer. Live APYs from banks and credit unions are on the Bank Rate Monitor.

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At Maturity

Balance at Maturity	$0
Interest Earned	$0
Interest per Month (average)	$0
Same APY as a Nominal Rate	n/a

Early Withdrawal Penalty	$0
Balance if You Break It	$0
Tax on the Interest	$0
Balance After Tax	$0

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Everything here stays in your browser. The link carries your inputs inside the address itself, and the PDF is made by your own device.

For illustration only, not financial advice. Results are estimates based on the numbers you enter and do not constitute an offer, rate quote or approval.

Now use a real APY, not an example.

Live certificate and savings rates from banks and credit unions, each dated at its source.

See current bank rates

Questions people ask

How is the balance at maturity calculated?

The page grows your deposit at the APY for the length of the term in years. APY already includes compounding, so no separate compounding setting is needed.

How does the early withdrawal penalty work here?

You enter the penalty as months of interest, from your CD disclosure. The page takes the average interest per month over the term, multiplies it by that number of months, and never lets the penalty exceed the interest earned.

Why does the page show a nominal rate as well as the APY?

The nominal rate is the annual rate that, compounded each month, produces the same APY you entered. It helps when one bank quotes APY and another quotes a rate.

Does the result include tax on the interest?

Balance at Maturity is before tax. The page treats CD interest as ordinary income, applies the tax rate you enter to the interest, and shows the balance after tax on a separate line.