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CD Ladder Builder

Spread a deposit over staggered maturities so cash frees up every year while the long terms keep earning. Adjust the rungs and watch the blended yield shift.

Rates as of August 7, 2026 · how we test it
$
Strategy
Number of rungs
5
Each rung gets $10,000. As each matures you can spend it or roll it into a new long-term CD at whatever rates are then available.
Blended APY (dollar-year weighted)
4.46%
Interest, full cycle$7,107
Value at last maturity$57,107
First cash availableAugust 2027
Maturity timeline
bar length = term
Rung 1
1 year
4.40% APY
+$440
Rung 2
2 years
4.25% APY
+$868
Rung 3
3 years
4.50% APY
+$1,412
Rung 4
4 years
4.50% APY
+$1,925
Rung 5
5 years
4.50% APY
+$2,462
Total interest across the ladder$7,107
Maturity calendar
MaturesRungAPYCash out
Aug 20271 year CD4.40%$10,440
Aug 20282 years CD4.25%$10,868
Aug 20293 years CD4.50%$11,412
Aug 20304 years CD4.50%$11,925
Aug 20315 years CD4.50%$12,462
A ladder trades a little yield for liquidity: every rung that matures is penalty-free cash. Compare against locking everything into one term with the CD Interest Calculator.

When a ladder beats choosing a single term

Putting everything into the top short-term rate secures the best headline number but leaves the whole balance exposed to next year's market. Putting everything into the longest term buys certainty but strands the money. A ladder blends the two: a middle yield, plus a penalty-free decision point every year.

How that trade reads depends on the money's job. An emergency-adjacent reserve wants the ladder. Money with a fixed date — tuition due in a known month — wants a single CD maturing just before it, and no ladder at all.

The two ways a ladder goes wrong

The first failure is overbuilding: pile too many rungs onto a small balance and you create certificates whose maturities demand more attention than their yield returns. Below roughly $2,500 a rung, use fewer rungs or a single CD.

The second is forgetting that every rung auto-renews like any other CD. Five rungs means five maturity notices, five grace periods, and five chances for a bank's default renewal to swallow the rate you planned on. Set the calendar reminders when you open the ladder, not when the first notice arrives.

Frequently asked

Four or five rungs is typical — enough that a portion frees up regularly without creating more accounts than you care to track. Match the count to how often you might need access; the laddering guide works through the trade-offs.
Sources & further reading
FDIC — deposit insurance coverage limits: $250,000 per depositor, per insured bank, per ownership category.
NCUA — share insurance for credit union accounts, on the same $250,000 basis.
Regulation DD (Truth in Savings, 12 CFR 1030) — how annual percentage yield must be calculated and disclosed.
IRS Publication 550 — interest income is taxable in the year it is credited, reported on Form 1099-INT.
FDIC National Rates and Rate Caps, July 2026 monthly survey — the national-average CD yields used as benchmarks beside results.
Top-APY figures: institutions' published rate pages and dated August 2026 roundups (Bankrate, CNBC Select, Fortune/Curinos, The College Investor), checked August 7, 2026.