Bond Ladder Income Calculator
Annual income from a 5-rung bond ladder with user-entered values and yields.
Calculate annual income from a bond ladder calculator using 5 rungs with custom face values, yields, and maturities to find blended yield.
What this tool does
A bond ladder holds bonds maturing in staggered years, providing predictable income plus principal return each year. This calculator models a five-rung ladder by taking the face value and yield for each rung and computing three key outputs: total annual income (the sum of each rung's coupon payments), weighted-average yield across the entire ladder, and combined principal amount. The result illustrates what annual cash flow and blended yield the ladder would generate based on your entered values. The principal drivers are the face values and yields you assign to each rung—higher values or yields increase annual income proportionally. A typical scenario involves comparing different ladder configurations to model income patterns. Note that this calculation is for illustration only and does not account for credit risk, inflation, price fluctuations, or reinvestment decisions.
Enter Values
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Formula Used
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Disclaimer
Results are estimates for educational purposes only. They do not constitute financial advice. Consult a qualified professional before making financial decisions.
A 50,000 ladder with 10,000 in each of 5 rungs yielding 3%, 3.5%, 4%, 4.2%, 4.5% pays 1,920 a year — a 3.84% weighted yield. Each year one rung matures, freeing 10,000 to reinvest in a new 5-year bond at whatever rate is available then. Income is stable, principal is accessible in stages.
What the result means
Primary is total annual income from the ladder. Secondary shows weighted yield, total principal, and a summary across rungs. The ladder smooths interest rate risk — as rates change, only one rung per year gets reinvested.
Why bond ladders
Predictable income. Partial interest rate protection (unlike single-maturity bonds which concentrate all reinvestment risk in one year). Principal access in stages. Popular with retirees or investors with known future cash needs.
Quick example
With rung 1 face value of 10,000 and rung 1 yield of 3% (plus rung 2 face value of 10,000 and rung 2 yield of 3.5%), the result is 1,920.00. Change any figure and watch the output shift — it's often more useful to see the pattern than to memorise the formula.
Which inputs matter most
You enter Rung 1 Face Value, Rung 1 Yield, Rung 2 Face Value, Rung 2 Yield, and Rung 3 Face Value. Not every input has equal weight. Adjusting one input at a time toward extreme values shows which ones move the result most.
What's happening under the hood
Total annual income is the sum of each rung's face value times yield. Weighted yield is income divided by total face value. The formula is listed in full below. If the number looks off, you can retrace the calculation by hand — that's the point of showing the working.
Where this fits in planning
This is a "what-if" tool, not a forecast. Use it to test ideas before committing: what happens if the rate is 2% lower than hoped, what happens if you add five more years. The value is in the scenarios you run, not the single answer you get from the defaults.
What this doesn't capture
Steady-rate math ignores real-world volatility. Actual returns are lumpy; sequence-of-returns risk matters most in drawdown; fees and taxes drag on compound growth; and behaviour changes in drawdowns can reduce outcomes below the projection. The number represents one scenario rather than a forecast.
A bond ladder with £10,000 at 3% through £10,000 at 4.5% generates 1,920.00 in annual income.
Inputs
This example uses typical values for illustration. Adjust the inputs above to match a specific situation and see how the result changes.
Sources & Methodology
Methodology
This calculator computes annual income from a five-rung bond ladder by multiplying each rung's face value by its yield, then summing across all rungs. The model treats yields as annual rates applied to face values and assumes constant yields throughout the holding period. It also calculates a weighted average yield by dividing total annual income by the sum of all face values. The calculator does not model coupon payment frequency, credit risk, price fluctuations, reinvestment of income, fees, taxes, or changes in market conditions.
References
Frequently Asked Questions
Why 5 rungs?
What happens at maturity?
Can I include gilts and corporate bonds?
Is this nominal or real yield?
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