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Annuity Income Income Forecast Estimator

Forecast a growing annuity income stream from a starting annual payment and an assumed yearly increase. The estimator is useful for contracts with a fixed escalation feature, an inflation-linked adjustment assumption, or any planning scenario in which future annuity income is expected to rise at a steady rate.

The tool reports the projected annual income in the final forecast year, cumulative gross income over the entire period, and the final-year monthly equivalent. It assumes one constant annual increase and does not model insurer caps, floors, participation rates, market-linked formulas, or changes in payment frequency. Use the projection to compare income trajectories rather than as a contract illustration.

Calculator inputs

USD/yr
%
years
Result
—
Projected annual income in final year
Cumulative gross income—
Final-year monthly equivalent—
Increase from starting income—
Total modeled years—

1. Enter starting annual income
Use the gross annual annuity payment for the first year of the projection.

2. Enter the annual increase
Use the contract escalation rate or the constant planning rate you want to test.

3. Set the forecast horizon
Choose how many full years of payments to include.

4. Review final-year income
The main result shows the annual payment level reached in the last modeled year.

5. Compare cumulative income
Use the cumulative figure to see the sum of all yearly payments over the forecast, before taxes.

Income in year n = starting income × (1 + annual increase)^(n − 1) Cumulative income = sum of yearly income from year 1 through year N Final-year monthly equivalent = final-year annual income ÷ 12

The model assumes one increase is applied at the start of each new year after year 1. A 0% increase produces a level payment stream.

What the result means

The main result is the gross annual annuity income projected for the final year of the selected horizon.

This estimator does not discount future payments to present value and does not predict inflation or insurer crediting decisions.

Given

  • Starting annual income: $24,000
  • Annual increase: 2%
  • Forecast: 5 years

Calculation
Year 1 = $24,000
Year 2 = $24,000 × 1.02 = $24,480
Year 5 = $24,000 × 1.02^4 ≈ $25,978.38
Cumulative income is the sum of years 1 through 5.

Result
Projected year-5 income is approximately $25,978, with cumulative five-year gross income of about $124,897.

The final-year monthly equivalent is approximately $2,165 before taxes.

Why is the first year not increased?

The starting income is treated as the payment level for year 1. The entered growth rate is first applied when moving from year 1 to year 2.

Can I use a 0% increase for a level annuity?

Yes. With a 0% annual increase, every modeled year uses the same starting annual income.

Is the annual increase the same as inflation?

Not necessarily. It can represent a contractual escalation or a planning assumption. If your annuity increase is linked to an index with caps or other rules, this constant-rate model will only be an approximation.

Does cumulative income include taxes?

No. The cumulative figure is gross income. Use the annuity tax tools if you want a separate scenario for taxes.

Does a higher forecast income mean the annuity has a higher present value?

Not automatically. Present value depends on discount rates, timing, survival or guarantee terms, and other contract features that are not part of this income-only forecast.