Maturity Value
Interest Earned
Effective APY
| Period | Balance | Interest (Period) | Total Interest |
|---|
Table of Contents
What is a certificate of deposit (CD)?
A certificate of deposit is a time deposit savings product offered by banks, credit unions, and thrift institutions. When you open a CD, you agree to leave a specific sum of money on deposit for a fixed period — the term — in exchange for a fixed, guaranteed interest rate. Unlike a regular savings account where you can deposit or withdraw freely, a CD locks in both the amount and the rate for the full term, which allows the bank to offer you a higher yield.
CD terms range from as short as one month to as long as five or even ten years. Shorter terms typically offer lower rates since the bank's commitment is brief. Longer terms offer higher rates since you are committing your capital for longer. CDs are particularly attractive when interest rates are high or when you want to lock in a known return without exposing your principal to market risk.
How does a CD work?
Opening a CD is straightforward: you deposit a minimum amount (typically $500–$1,000 for standard CDs, $100,000 for jumbo CDs), select a term, and the bank locks in your interest rate for that period. Interest accrues according to the compounding frequency — daily, monthly, quarterly, or annually — and is either credited to the CD balance (increasing future interest earned) or paid out to a linked account, depending on the bank and your preferences.
At maturity, you receive your principal plus all accumulated interest. Most banks notify you before maturity and give you a grace period (typically 7–10 days) to decide whether to withdraw funds, renew the CD at current rates, or roll the balance into a different term. If you do nothing, the CD typically auto-renews at the then-current rate for the same term — which may differ significantly from your original rate.
CD interest rates explained
CD rates are heavily influenced by Federal Reserve policy. When the Fed raises the federal funds rate to combat inflation, banks compete for deposits by raising CD yields. When the Fed cuts rates, CD yields fall. In 2022–2023, the Fed raised rates from near zero to over 5%, sending top CD rates above 5% APY for 1-year CDs — the best rates in roughly 15 years. As of 2025–2026, following some rate reductions, top nationally available 1-year CD rates are in the 4.5%–5.25% APY range at online banks and credit unions, with 5-year CD rates somewhat lower due to expectations of continued rate declines.
Online banks and credit unions consistently offer the highest CD rates because they have lower overhead than traditional brick-and-mortar banks and compete aggressively for deposits nationally. Large traditional banks (JPMorgan Chase, Bank of America, Wells Fargo) typically offer CD rates far below the top of the market. Shopping around — using comparison sites or checking directly with high-yield online banks — can make a meaningful difference in total interest earned over a multi-year term.
What is APY vs APR for CDs?
APR (Annual Percentage Rate) is the nominal interest rate before compounding is accounted for. APY (Annual Percentage Yield) includes the effect of compounding and represents the true annual return on your deposit. For CDs, APY is the more useful figure because it allows apples-to-apples comparison between CDs with different compounding frequencies. A CD with a 5.00% APR compounding daily has an APY of approximately 5.127%, while the same 5.00% APR compounding annually has an APY of exactly 5.00%.
U.S. federal law (the Truth in Savings Act) requires banks to disclose APY for deposit accounts, making comparisons straightforward. When comparing two CDs, always compare their APYs — not their stated interest rates — to determine which truly offers the better return. This calculator shows the effective APY based on your input rate and compounding frequency so you can accurately compare your CD against alternatives.
CD early withdrawal penalties
The main risk of a traditional CD is the early withdrawal penalty you incur if you need your money before the maturity date. Penalties vary by institution and term length but commonly range from 60–90 days of interest for CDs with terms under one year, to 150–180 days of interest for 1–3 year CDs, to 365 days or more of interest for longer-term CDs. In some cases — particularly if you withdraw very early in a long-term CD — the penalty can eat into your principal.
Before opening a CD, consider whether you might need the funds before maturity. If there is a reasonable chance you will, consider alternatives: a no-penalty CD (which allows early withdrawal without penalty but typically offers a lower rate), a high-yield savings account (slightly lower rate but fully liquid), or a CD ladder structure that stages your maturities so some funds are always coming available soon.
CD vs high-yield savings account
The key difference between a CD and a high-yield savings account (HYSA) is flexibility versus rate. A HYSA allows unlimited deposits and (within federal limits) withdrawals at any time, making it ideal for emergency funds or short-term savings goals. However, the rate on a HYSA is variable — it can change at any time as the bank adjusts to market conditions. A CD locks in a guaranteed rate for the full term, giving you certainty about your return.
When interest rates are declining, a CD is often advantageous — you lock in today's higher rate before it falls. When rates are rising, a HYSA has an edge — your rate adjusts upward automatically, while a CD holder is stuck at a lower rate until maturity. In a stable rate environment, the decision comes down to how much liquidity you need. Many savers keep their emergency fund in a HYSA and excess savings in CDs for the higher guaranteed yield.
Types of CDs
Traditional CDs are the most common: fixed rate, fixed term, with early withdrawal penalties. No-penalty CDs (or liquid CDs) allow early withdrawal after a brief initial lock-up period (typically 6–7 days) without penalty — ideal for savers who want higher rates than a savings account but may need access to funds. Bump-up CDs allow you to request a rate increase once (or sometimes twice) during the term if rates rise — useful when you expect rates to increase but still want some certainty.
Jumbo CDs require a minimum deposit of $100,000 and traditionally offered higher rates as compensation for the large minimum, though today the rate premium over standard CDs is often minimal. Add-on CDs allow you to make additional deposits after opening — useful for building savings over time within a single CD. Step-up CDs automatically increase your rate at predetermined intervals during the term, providing some protection against rising rates while still offering more certainty than a variable-rate account.
How to build a CD ladder strategy
A CD ladder is a powerful technique for maximizing CD yields while maintaining regular access to a portion of your savings. To build a basic ladder, divide your total savings into equal portions and invest each in CDs with sequentially longer terms. For example, with $25,000: invest $5,000 each in 1-year, 2-year, 3-year, 4-year, and 5-year CDs. Each year, one CD matures, giving you access to $5,000 plus interest. You can spend those funds or reinvest into a new 5-year CD, maintaining the ladder.
A CD ladder provides three key benefits: regular liquidity (one CD matures each year), exposure to changing interest rates (you reinvest at current rates annually rather than being locked in for five years), and typically a higher average yield than keeping everything in short-term CDs while waiting for "the right time" to commit to longer terms. In a normal (upward-sloping) yield curve environment where longer CDs pay higher rates, a ladder captures much of that yield premium while preserving flexibility.
Are CDs safe?
CDs are among the safest savings instruments available to individual investors. CDs at FDIC-member banks are insured up to $250,000 per depositor, per institution, per ownership category. CDs at NCUA-member credit unions have equivalent coverage. Within these limits, your principal and earned interest are fully protected even if the institution fails — the federal government guarantees repayment. Unlike stocks, bonds, or real estate, a CD cannot lose value due to market movements (though early withdrawal penalties can reduce net returns).
The primary risk of a CD is inflation risk — if inflation runs higher than your CD rate, your purchasing power is eroding even as your nominal balance grows. A 5% CD during a 3% inflation environment provides a real return of approximately 2%. A 5% CD during a 6% inflation environment represents a real loss in purchasing power. For this reason, CDs are best suited for short-to-medium-term savings goals rather than long-term wealth building, where stocks have historically provided better protection against inflation over decades.
Are CDs worth it in 2025?
In 2025 and 2026, CDs remain an excellent option for conservative savers and those with specific short-to-medium-term goals. Following the Fed's rate tightening cycle that pushed yields to multi-decade highs, CD rates have moderated somewhat from their 2023–2024 peaks but remain significantly higher than the near-zero rates of 2020–2021. Top 1-year CD rates from online banks and credit unions are in the 4.5%–5.25% APY range, which substantially exceeds inflation for a risk-free, FDIC-insured return.
CDs make the most sense when you have a specific savings goal with a defined time horizon — a home down payment in two years, a car purchase in 18 months, or a tax bill coming due. They also make sense for the portion of your portfolio that needs to be in capital-preserved, guaranteed-return instruments (often recommended as the "safe" portion of a diversified portfolio as you approach retirement). For long-term wealth building with a 10+ year horizon, diversified stock index funds have historically offered superior returns despite higher short-term volatility.
FAQs
A certificate of deposit is a savings product offered by banks and credit unions that pays a fixed interest rate in exchange for depositing a specific amount of money for a fixed period of time — the term. CD terms typically range from one month to five years. In exchange for committing to leave your money on deposit for the full term, you receive a higher interest rate than a standard savings account. CDs are considered one of the safest savings instruments available because they are FDIC insured up to $250,000 per depositor per institution.
CD interest is calculated using compound interest: A = P(1 + r/n)^(n×t), where A is the maturity value, P is the principal deposit, r is the annual interest rate (as a decimal), n is the number of compounding periods per year, and t is the term in years. The more frequently interest compounds, the faster your balance grows. A CD advertised at 5.00% APR compounding daily will have a slightly higher effective APY than one compounding monthly. Banks typically advertise APY (Annual Percentage Yield), which already accounts for compounding and makes comparison straightforward.
When your CD reaches its maturity date, the bank will notify you and typically give you a grace period (commonly 7 to 10 days) to decide what to do with the funds. Your options are usually: withdraw the full balance plus interest, withdraw the interest and roll over the principal into a new CD, or roll over the entire balance (principal plus interest) into a new CD. If you take no action during the grace period, most banks automatically renew the CD for the same term at the current interest rate, which may be higher or lower than your original rate.
A CD ladder is a strategy where you divide your savings across multiple CDs with staggered maturity dates. For example, instead of putting $20,000 into a single 5-year CD, you put $4,000 each into 1-year, 2-year, 3-year, 4-year, and 5-year CDs. Each year, one CD matures and you can either use the funds or reinvest at the current rate. This provides regular access to a portion of your savings, reduces interest rate risk, and often results in a higher average yield than keeping everything in short-term CDs while waiting for rates to improve.
Yes — CDs held at FDIC-member banks are insured up to $250,000 per depositor, per institution, per account ownership category. CDs at credit unions are similarly protected by NCUA insurance up to $250,000. This makes CDs one of the safest investments available for principal protection. If you have more than $250,000 to deposit, you can spread funds across multiple institutions or account ownership categories (individual, joint, IRA, etc.) to maintain full FDIC coverage on the entire amount.
Yes, you can typically withdraw from a CD early, but almost all traditional CDs charge an early withdrawal penalty that reduces or eliminates the interest earned and in some cases can dip into principal. Common penalties range from 60 days of interest for short-term CDs to 150–365 days of interest for longer-term CDs. No-penalty CDs (also called liquid CDs) allow early withdrawal without penalty but generally offer lower rates than traditional CDs. If you think you may need access to the funds before maturity, a no-penalty CD, a high-yield savings account, or a CD ladder may be a better choice than a traditional CD.