CD Ladder Calculator (2026)
Putting all your savings into a single CD locks in one rate for years. A CD ladder staggers maturities so you earn high yields while keeping portions of your money accessible on a rolling schedule. Model different rung sizes, terms, and rates to find the optimal ladder for your goals.
| CD | Deposit | Term | APY | Interest | Value |
|---|
CD Ladder vs Single CD vs HYSA
Each strategy has trade-offs. Here's how a $50,000 investment performs across three approaches over 5 years:
| Feature | CD Ladder (5-Rung) | Single 5-Year CD | High-Yield Savings |
|---|---|---|---|
| Rate | Blended 4.6% | 4.5% fixed | 4.0% variable |
| Liquidity | Annual (1 rung/yr) | Locked 5 years | Instant |
| 5-Year Interest | ~$12,100 | ~$12,150 | ~$11,000 |
| After-Tax (22%) | ~$9,440 | ~$9,480 | ~$8,580 |
| Reinvestment Risk | Low (annual rollover) | High (all locked) | High (rate changes) |
| Best For | Balance of yield + access | Max guaranteed return | Emergency fund |
CD ladder earns ~$1,100 more than HYSA while providing annual access to funds. Single CD earns slightly more but locks all money for 5 years.
2026 CD Rates by Term
National average and top online CD rates as of July 2026. Use these rates when setting your ladder rung APYs.
| Term | National Average | Top Online Rate |
|---|---|---|
| 3 months | 4.75 – 5.00% | 5.25 – 5.50% |
| 6 months | 4.85 – 5.10% | 5.30 – 5.55% |
| 1 year | 4.90 – 5.25% | 5.35 – 5.60% |
| 2 years | 4.60 – 4.90% | 5.00 – 5.25% |
| 3 years | 4.40 – 4.70% | 4.85 – 5.10% |
| 5 years | 4.25 – 4.55% | 4.75 – 5.00% |
Sources: FDIC National Rate (July 2026), CDCalculators.com.
How CD Laddering Works
A CD ladder splits your investment across CDs with staggered maturity dates. When the shortest-term CD matures, you reinvest it into a new long-term CD. This gives you regular access to funds while earning higher long-term rates.
- Regular Liquidity: A rung matures regularly, giving you access to funds
- Rate Protection: If rates rise, you can reinvest maturing CDs at the higher rate
- Higher Returns: Longer-term CDs in the ladder capture higher APYs
- FDIC Insured: Up to $250,000 per depositor per bank
CD Ladder Worked Example: $10,000 Over 5 Years
A concrete example helps visualize how a CD ladder works in practice. Here is a 5-rung strategy with $10,000 at 4.5% APY across all terms:
| Year | CDs Held | Maturing CD | Interest Earned | Action |
|---|---|---|---|---|
| 1 | 1, 2, 3, 4, 5 yr | 1-yr ($2,000) | ~$90 | Reinvest into new 5-yr CD |
| 2 | 1, 2, 3, 4, 5 yr | 2-yr ($2,000) | ~$184 | Reinvest into new 5-yr CD |
| 3 | 1, 2, 3, 4, 5 yr | 3-yr ($2,000) | ~$282 | Reinvest into new 5-yr CD |
| 4 | 1, 2, 3, 4, 5 yr | 4-yr ($2,000) | ~$385 | Reinvest into new 5-yr CD |
| 5 | 5-yr CDs only | 5-yr ($2,000) | ~$492 | Steady-state: all rungs at 5 years |
Total interest over 5 years: ~$1,433. Blended APY: Approximately 4.5% with annual access to $2,000 plus interest each year. After year 5, the ladder enters a steady state where all CDs are 5-year terms and one matures every 12 months.
Interest is simplified for illustration. Actual CD interest compounds at different frequencies (daily, monthly, or quarterly) depending on the bank. Use the calculator above for exact figures with your specific deposit amounts and rates.
Common CD Ladder Mistakes
- Not reinvesting matured CDs: When a CD matures, reinvest at the longest term to keep the ladder going.
- Ignoring early withdrawal penalties: If you might need to break a CD early, factor in the penalty — it can erase most of your earned interest.
- Choosing too few CDs: With only 2-3 CDs, you don't get frequent enough access. Aim for 4-6 CDs.
- Not comparing to HYSA rates: If savings account rates are close to CD rates, a HYSA might be better for short-term needs.
- Missing the grace period: Most banks give 7-10 days after maturity to decide. Missing it auto-renews at a usually lower rate.
Frequently Asked Questions
A CD ladder spreads your money across multiple CDs with staggered maturity dates. For example, split $10,000 into 5 CDs (1, 2, 3, 4, 5 years). Every year one CD matures. Reinvest at the longest term to maintain the ladder for annual access and higher average rates.
Blended APY is the weighted average yield across all rungs in your ladder. Because shorter CDs usually pay less than longer ones, the blended APY sits between the shortest and longest rate. It represents the overall return of the ladder as a single number (MiniWebtool 2026).
Most financial advisors recommend 4-6 CDs for a balanced ladder. With 3 CDs you get basic diversification; with 5+ you get more frequent maturity dates. The right number depends on how often you want access to your money.
When a CD matures, you can either withdraw the cash or reinvest it in a new CD at the longest term to maintain your ladder structure. Most banks give a 7-10 day grace period after maturity to make your decision.
CDs typically offer higher rates than savings accounts, but your money is locked for the term. A ladder provides periodic liquidity as CDs mature. Choose a HYSA for emergency funds; choose a CD ladder for known savings goals.
Yes, CDs are FDIC-insured up to $250,000 per depositor per bank, making returns guaranteed if held to maturity. Always confirm your bank is FDIC-insured before investing.
Start with 4-5 CDs spaced evenly across terms (1, 2, 3, 4, 5 years). Use the same APY for all CDs. When each matures, reinvest at the longest term. This builds your ladder over time while keeping funds accessible.
Most banks have a $500 to $1,000 minimum per CD. For a 5-rung ladder, you will need at least $2,500 to $5,000 total to start. Some online banks offer no-minimum CDs, letting you start with smaller amounts. A $5,000 minimum gives enough spread across rungs to make the strategy worthwhile.
Yes, many brokerages and banks offer IRA CDs for retirement savers. IRA CD ladders follow the same structure but offer tax-advantaged growth. Traditional IRA CDs use pre-tax dollars; Roth IRA CDs use after-tax dollars with tax-free withdrawals. IRA CDs typically offer slightly lower rates than standard CDs, but the tax benefits can offset the difference for long-term savers.