Certificates of Deposit (CDs) offer a guaranteed return for locking your money up for a fixed period. As of September 2026, top online bank CD rates run roughly 3.90%–4.50% APY depending on term, well above the FDIC’s national average rates. Here’s everything you need to know about whether a CD is right for your savings strategy.
Current CD Rates by Term (September 2026)
| CD Term | Typical Top-Bank Range | Best Available (approx.) | FDIC National Average (Aug 2026) |
|---|---|---|---|
| 3 months | 3.70–4.25% | 4.25% | 1.14% |
| 6 months | 4.00–4.30% | 4.30% | 1.41% |
| 1 year | 4.00–4.44% | 4.44% | 1.71% |
| 18 months | 4.00–4.35% | 4.35% | n/a (no direct FDIC series) |
| 2 years | 4.00–4.40% | 4.40% | 1.57% |
| 3 years | 4.00–4.50% | 4.50% | 1.34% |
| 5 years | 4.00–4.50% | 4.50% | 1.36% |
Top-bank ranges based on Bankrate, CNBC Select, and WalletHub rate surveys published this month; FDIC averages from the FDIC’s August 17, 2026 National Rates and Rate Caps release. Rates change frequently based on the federal funds rate (currently 3.50%–3.75%). Online banks and credit unions generally offer the best CD rates.
How CDs Work
- Choose a term: From 3 months to 5+ years
- Deposit your money: Minimum varies ($0 to $1,000+)
- Earn guaranteed interest: Rate is locked for the entire term
- CD matures: Get your principal + interest back
- Decide what to do: Withdraw, renew, or roll into a new CD
Key CD Features
| Feature | Details |
|---|---|
| FDIC insured | Yes, up to $250,000 |
| Rate | Fixed for the term (generally) |
| Minimum deposit | $0–$1,000 (varies) |
| Early withdrawal penalty | Varies by bank — commonly 1 to 12+ months of interest |
| Interest payout | Monthly, quarterly, or at maturity |
| Automatic renewal | Most CDs auto-renew (you have a grace period to withdraw) |
When CDs Make Sense (and When They Don’t)
CDs Are Good When:
- You want to lock in a rate before anticipated Fed rate cuts
- You have a known future expense (buying a car in 1 year)
- You want guaranteed returns with zero risk
- You need more discipline than a savings account (penalty discourages withdrawal)
- You have money you won’t need for the CD term
CDs Are Not Ideal When:
- You might need the money unexpectedly (emergency fund)
- High-yield savings rates are equal or higher
- You’re saving for 5+ years (diversified investments have historically outperformed CDs over long horizons, though with more risk)
- You need regular access to funds
- Rates are expected to rise (you’d be locked into a lower rate)
CD vs. High-Yield Savings Account
| Factor | CD | High-Yield Savings |
|---|---|---|
| Rate | Fixed (locked in) | Variable (changes with Fed rate) |
| Access to money | Locked until maturity | Anytime |
| Early withdrawal | Penalty (varies by bank) | No penalty |
| Rate direction risk | Protected if rates fall | Rate drops with Fed cuts |
| Best when rates are… | About to decrease | Stable or increasing |
| FDIC insured | Yes | Yes |
| Minimum balance | Often $0-$1,000 | Often $0 |
CD Earnings Calculator
How much your CD earns at different rates and terms (illustrative figures — use these to compare terms, then verify the actual rate at your chosen bank):
$10,000 CD
| Term | 3.5% APY | 4.0% APY | 4.5% APY | 5.0% APY |
|---|---|---|---|---|
| 6 months | $175 | $200 | $225 | $250 |
| 1 year | $350 | $400 | $450 | $500 |
| 2 years | $712 | $816 | $920 | $1,025 |
| 3 years | $1,087 | $1,249 | $1,412 | $1,576 |
| 5 years | $1,877 | $2,167 | $2,462 | $2,763 |
$50,000 CD
| Term | 3.5% APY | 4.0% APY | 4.5% APY | 5.0% APY |
|---|---|---|---|---|
| 6 months | $875 | $1,000 | $1,125 | $1,250 |
| 1 year | $1,750 | $2,000 | $2,250 | $2,500 |
| 2 years | $3,561 | $4,080 | $4,601 | $5,125 |
| 5 years | $9,384 | $10,833 | $12,310 | $13,814 |
Figures use the APY compounding convention: A = P(1+APY)^years.
CD Laddering Strategy
A CD ladder gives you the benefits of higher long-term rates while keeping money regularly accessible:
How It Works
Divide your savings into equal portions and stagger maturity dates:
Example: $25,000 CD Ladder (illustrative rates — confirm current offers before opening)
| CD | Amount | Term | Illustrative APY | Matures |
|---|---|---|---|---|
| CD 1 | $5,000 | 1 year | 4.35% | Month 12 |
| CD 2 | $5,000 | 2 years | 4.35% | Month 24 |
| CD 3 | $5,000 | 3 years | 4.40% | Month 36 |
| CD 4 | $5,000 | 4 years | 4.40% | Month 48 |
| CD 5 | $5,000 | 5 years | 4.45% | Month 60 |
When CD 1 matures at month 12, reinvest in a new 5-year CD. Now you have a CD maturing every year for the next 5 years.
Benefits of Laddering
- Regular access: One CD matures every year
- Rate averaging: Smooths out rate fluctuations
- Higher returns: Gets benefit of longer-term rates
- Flexibility: Can redirect maturing CDs if needs change
Types of CDs
| Type | Feature | Best For |
|---|---|---|
| Standard CD | Fixed rate, fixed term | Most savers |
| No-penalty CD | Withdraw anytime without fee (after a short hold period) | Those wanting flexibility |
| Jumbo CD | Large minimum deposit ($25K–$100K+); doesn’t reliably pay a premium in today’s market | Large savers who verify the rate first |
| Bump-up CD | Can raise rate once if rates increase | Uncertain rate environment |
| Step-up CD | Rate increases automatically at set intervals | Those expecting rising rates |
| Brokered CD | Purchased through a brokerage | Portfolio diversification |
| IRA CD | Held within an IRA for tax advantages | Retirement savings |
Early Withdrawal Penalties
Early withdrawal penalty formulas are not standardized across the industry — they vary significantly by bank and by term. Some banks use a simple, term-based schedule; others use a flat penalty regardless of term. Below is an illustrative range seen across major online banks as of September 2026 — always confirm the exact penalty with your specific institution before opening:
| CD Term | Illustrative Penalty Range |
|---|---|
| 3-6 months | 1–3 months of interest |
| 1 year | 3–6 months of interest |
| 2-3 years | 4–9 months of interest |
| 4-5 years | 6–12 months of interest |
| 5+ years | 12–18 months of interest |
Before withdrawing early: Calculate whether the penalty wipes out your gains or if a no-penalty CD would have been better from the start.
CDs and Taxes
CD interest is taxable as ordinary income in the year it’s earned, even if you don’t withdraw it:
| Tax Bracket | Federal Tax on $1,000 CD Interest |
|---|---|
| 12% | $120 |
| 22% | $220 |
| 24% | $240 |
| 32% | $320 |
To defer taxation, consider holding CDs within a Traditional IRA (tax-deferred) or Roth IRA (tax-free growth).
See the full CD guide for best rates, laddering strategies, and how CDs compare to HYSAs and Treasury bills.
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