CD Laddering Calculator
Model a CD ladder strategy across multiple CDs with staggered maturities.
Principal Per Rung
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Total Maturity Value
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Total Interest Earned
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Maturity Schedule
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Guide
How it works
Use this calculator to model a CD ladder with staggered maturities and different APY assumptions.
What this calculator does
The CD laddering calculator splits a total deposit across multiple CD rungs and estimates maturity values.
It uses:
- total amount to invest
- number of CD rungs
- term step per rung
- APY assumptions
CD Ladder Formula
Total Maturity Value = Sum of Each Rung Principal x (1 + APY)^Term
Where:
- Rung principal = total investment divided by rungs
- APY = rate for each rung
- Term = maturity time for each rung
- Total interest = total maturity value minus original investment
Example calculation
If:
- Total investment = 50,000
- Rungs = 5
- Principal per rung = 10,000
- Terms = 1 to 5 years
Then:
- Each rung matures on a different schedule
- Total maturity value depends on each APY
- Total interest is the sum of all rung interest
The ladder spreads 50,000 across staggered maturities.
What is CD laddering?
CD laddering is a strategy that divides money across CDs with different maturity dates. It balances rate locking with regular access to portions of the cash.
Why CD laddering matters
- avoids locking all cash into one maturity date
- creates recurring opportunities to reinvest
- reduces timing risk from rate changes
- keeps part of the portfolio becoming liquid sooner
When to use this calculator
- planning a staggered CD strategy
- comparing different rung counts
- estimating total ladder interest
- building a schedule for cash availability
Common mistakes
- using one CD term for all cash needs
- ignoring early withdrawal penalties
- assuming every rung will renew at the same rate
- making too many rungs for the amount invested
CD ladder vs single CD
A single CD puts all funds into one term. A CD ladder splits funds across multiple terms so maturities arrive at different times.
FAQs
What is CD laddering?
CD laddering is splitting money across multiple CDs with staggered maturity dates.
How do you calculate a CD ladder?
Divide the total investment by the number of rungs, grow each rung by its APY and term, then add the maturity values.
What is a good CD ladder?
A good CD ladder matches maturity dates to cash needs and uses a manageable number of rungs.
What is the difference between a CD ladder and a single CD?
A ladder staggers access across terms. A single CD matures all at once.
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