CD Calculator
Our CD calculator estimates how much interest your certificates of deposit will accrue over the chosen period, factoring in applicable taxes for a more precise outcome.
Accumulation Schedule
| Year | Deposit | Interest | Ending balance |
|---|---|---|---|
| 1 | $10,000.00 | $500.00 | $10,500.00 |
| 2 | $0.00 | $525.00 | $11,025.00 |
| 3 | $0.00 | $551.25 | $11,576.25 |
What is a Certificate of Deposit?
A CD is a contract in which you lock money away for a predetermined term in exchange for interest. Terms typically span from three months up to five years. Longer maturities increase exposure to interest‑rate fluctuations. In general, a bigger principal or a longer term yields a higher rate. CDs occupy the low‑risk, low‑reward niche of investments. While they usually offer better rates than ordinary savings or money‑market accounts, they lag far behind the long‑run equity market averages. Various CD variants exist with adjustable or index‑linked rates, but our tool only handles fixed‑rate CDs.
The gains from CDs are taxable as income in the U.S. unless they are in accounts that are tax-deferred or tax-free, such as an IRA or Roth IRA. For more information about or to do calculations involving a traditional IRA or Roth IRA, please visit the IRA Calculator or Roth IRA Calculator.
CDs are called "certificates of deposit" because before electronic transfers were invented, buyers of CDs were issued certificates in exchange for their deposits as a way for financial institutions to keep track of buyers of their CDs. Receiving actual certificates for making deposits is no longer practiced today, as transactions are done electronically.
FDIC-Backed
In the United States, CDs enjoy protection from the Federal Deposit Insurance Corporation (FDIC). Deposits at FDIC‑insured banks are covered up to $250,000, guaranteeing that amount even if the bank fails. Investors needing coverage beyond that limit can spread their funds across multiple FDIC‑insured institutions. This insurance makes CDs among the safest low‑risk options. Credit unions receive comparable protection through the National Credit Union Administration (NCUA).
Where and How to Purchase CDs
Many banks and credit unions list CDs as fixed‑income products. Since rates vary between institutions, it pays to compare the annual percentage yields (APY) and term lengths before committing. Buying a CD is straightforward: you provide the initial cash and select the desired term, though minimum deposits differ and brokers may levy fees.
Purchasing a CD essentially means you are lending money to the issuing institution. The bank uses those funds to make loans, maintain reserves, cover operating costs, and meet other obligations. Together with the federal funds rate, these factors shape the interest rates banks offer on their CDs.
History of CDs
Although not called CDs at the time, a similar practice emerged in 17th‑century European banks. Depositors received receipts for funds that banks then loaned to merchants. To prevent withdrawals while the money was lent out, banks began paying interest for a set period—an early version of today’s CD.
A pivotal moment for CDs occurred after the 1929 market crash, when lax banking regulations left depositors vulnerable. The government responded by creating the FDIC, which now safeguards depositors’ assets up to a statutory limit.
CD yields have swung dramatically over the decades. In the high‑inflation era of the late 1970s and early 1980s, rates approached 20 %. They fell steadily afterward, hovering around 4 % in late 2007. By 2021, the one‑year CD rate slipped below 1 %. Rates rose again to over 5 % in 2023‑2024 amid renewed inflation, then tapered off in mid‑2024 and are expected to keep declining through 2025‑2026 as price pressures ease. The Federal Reserve adjusts federal‑funds rates in line with these economic shifts.
How to Use CDs
CDs serve as solid tools for preserving capital, generating short‑term growth, and earning a guaranteed return. With those advantages, you can put CDs to work by:
- bolstering diversified portfolios to lower overall risk—particularly useful for retirees seeking a steady, dependable return as they approach or enter retirement.
- Serve as a short‑term (up to five years) stash for funds you don’t immediately need, ideal for accumulating a down‑payment on a house or a vehicle several years ahead.
- Project future earnings with precision since most CDs lock in a fixed rate, making them attractive to investors who value certainty.
When a CD’s term draws to a close, holders can choose their next move. Typically, if no action is taken, the principal and interest roll over into a comparable CD. Alternatively, owners may request the proceeds be moved to a checking or savings account, or placed into a different CD.
Withdrawing from a CD
Money placed in a CD is intended to remain locked for the certificate’s duration, and withdrawing early usually incurs a penalty (liquid CDs being an exception). The penalty’s size varies with the CD’s term and the issuer’s policy. In a climate of rising rates, paying the penalty may still make sense if it allows you to re‑allocate the funds into higher‑yielding CDs or other assets.
CD Ladder
Long‑term CDs typically yield more, but they also tie up capital for extended periods. Investors often mitigate this by constructing a CD ladder—spreading the investment across several CDs with staggered maturities. For instance, rather than putting the entire sum into a single three‑year CD, you might purchase three CDs maturing in one, two, and three years. As each matures, the principal and interest become available for reinvestment or withdrawal, providing greater liquidity and the chance to capture higher rates if market conditions improve.
APY vs. APR
Understanding the difference between annual percentage yield (APY) and annual percentage rate (APR) is essential. Banks usually quote APR for borrowing products—mortgages, credit cards, auto loans—while APY applies to deposit accounts like CDs and money‑market funds. APY reflects the total interest earned over a year, including compounding, whereas APR is the yearly equivalent of a simple monthly rate. Because it captures compounding effects, APY provides a truer picture of net earnings, and CD rates are typically presented as APY.
Compounding Frequency
This tool lets you select various compounding intervals. Generally, the more often interest compounds, the higher the payoff. To explore how different compounding schedules affect your results, try our Compound Interest Calculator.
Types of CDs
- Traditional CD — Offers a set interest rate for a defined term. Funds can be accessed penalty‑free only at maturity, though you may elect to roll the proceeds into a new term. Large‑balance CDs (typically $100,000+) are dubbed “jumbo” CDs and tend to carry higher yields.
- Bump‑Up CD — Allows you to raise the existing rate to align with a higher market rate during the term. This feature can boost returns when rates climb, though the base rates are usually lower than those of standard CDs.
- Liquid CD — Permits penalty‑free withdrawals provided a minimum balance is kept. Its rate is generally modest—lower than most fixed‑rate CDs yet typically above what you’d earn in a regular savings or money‑market account.
- Zero-Coupon CD—Unlike regular CDs, these instruments do not make periodic interest payments. Instead, the accrued interest is compounded and paid at maturity. Investors purchase them at a discount to their face value and they typically have longer maturities than standard CDs, which can increase exposure to interest‑rate risk.
- Callable CD—Issuers may redeem these CDs after the call‑protection period ends and before the scheduled maturity. When called, the investor receives the principal plus any accrued interest. To compensate for this callable feature, issuers usually offer a higher interest rate than non‑callable alternatives.
- Brokered CD—These CDs are sold through brokerage platforms rather than directly by banks or credit unions. A brokered CD gives investors access to a broader selection of offerings from multiple banks, potentially improving rate shopping compared with purchasing a CD from a single institution.
Alternatives to CDs
- Paying off Debt—Reducing high‑interest liabilities can be a more effective use of cash than locking it into a CD, because it guarantees a return equal to the interest you avoid paying. Even a modest‑rate loan such as a mortgage often carries a higher cost than the yield on most CDs, so eliminating that debt can be financially advantageous.
- Money Market Accounts—For those who value the safety of a CD but are willing to accept slightly lower yields, money‑market accounts are an option. These are FDIC‑insured deposit accounts with rules that limit transaction frequency, typically offered by banks.
- Bonds—Like CDs, bonds are generally considered low‑risk investments. They can be issued by governments—municipal, state, or federal—or by corporations, providing a fixed income stream over a set term.
- Peer-to-Peer Lending—P2P platforms connect individual borrowers with lenders online, allowing lenders to fund loans that meet their criteria. These marketplaces operate under specific rules to manage default risk.
- Bundled Mortgages—Often found in mutual‑fund portfolios, these securities package together many mortgages and trade similarly to bonds, usually offering higher yields than Treasury notes. After the 2008 crisis they faced criticism, but tighter regulations have helped restore confidence. They are guaranteed by Ginnie Mae, the Government National Mortgage Association.
Listed above are just some of the low-risk alternatives to CDs. There are much more investment options for those that can tolerate higher risk.