Retirement

Deferred Annuity Calculator

Project the accumulated value of a deferred annuity from a lump sum, monthly contributions and an expected return before payouts begin.

  • Free
  • No sign-up
  • Updated for 2026

Your annuity

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$

added each month

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yr

Enter your lump sum, monthly amount, return and years to project the value.

Worked example

With these example inputs:

  • Initial premium$50,000
  • Monthly contribution$500
  • Expected annual return6%
  • Years to grow15 yr

Accumulated value: $268,114

  • Starting amount$50,000
  • Total contributions$90,000
  • Total interest$128,114
  • Total growth91.5%

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What a deferred annuity calculator projects

A deferred annuity grows your money before any payouts begin. This tool projects the accumulated value at the end of that growth phase. You start with an initial premium. You add a monthly contribution. An expected return then compounds the balance over the years.

Why the growth phase matters

A deferred annuity has two stages. First comes the accumulation phase. Later comes the payout phase. The value you build now sets the income you can draw later. So the end balance is the figure that shapes your future.

How to use this calculator

Enter four inputs. Add your initial premium in your currency. Set the monthly contribution you plan to make. Enter the expected annual return as a percent. Then set the years to grow. The tool projects the end value at once.

How it is calculated

The tool grows two parts. Value = premium compounded + each contribution compounded. The balance is compounded every month at the given rate. Each new deposit then earns its own growth. The pieces add up to the final value.

A worked example

Start with an initial premium of fifty thousand. Add five hundred each month for fifteen years. Use an expected return of six percent. The projected value reaches about two hundred sixty eight thousand. Your deposits were one hundred forty thousand of that.

Where the growth comes from

Two forces build the balance. The first is the money you put in. The second is compound growth on every part. In this example growth adds more than the deposits. Time is the engine behind that lift. The longer the money sits, the larger that share grows. Even a small head start can matter over many years.

The role of the expected return

The return is an assumption, not a promise. A fixed annuity sets a steady rate. A variable one rises and falls with markets. Try a lower rate to see a cautious case. The expected return drives most of the final swing.

Common mistakes to avoid

One error is treating the projection as certain. Another is ignoring fees that eat returns. People also overlook tax rules on payouts. Each one bends the real result. Enter realistic figures and read the value as a guide.

The limits of this tool

This calculator models the accumulation phase only. It does not size your future income stream. It ignores fees, surrender charges and taxes. It also assumes a steady rate throughout. Use it to picture the shape of growth.

How contributions change the picture

Small monthly deposits add up over many years. Raising them lifts the end value sharply. A longer horizon does the same. Try a few amounts to feel the effect. The monthly contribution is a lever you control.

A final tip

Revisit this projection as your plans shift. Compare a fixed and a variable assumption side by side. Ask any provider about fees before you commit. A clear view of growth helps you plan with confidence.

Frequently asked questions

What is a deferred annuity?

It is an annuity that grows during an accumulation phase and pays income later. This tool estimates the value built up before payouts start.

Are the returns guaranteed?

It depends on the product. Fixed annuities credit a set rate, while variable ones move with investments. This projection assumes the steady return you enter.