b2KIT

Annuity Payout Calculator

Calculate fixed, variable, and indexed annuity payouts with surrender charges, death benefit, and income rider projections.

Tested tool guide Tested browser tools Checked August 16, 2026

What Annuity Payout Calculator does, with a checked example

Annuities convert a lump-sum premium into future income two ways: growth during a deferral period, then conversion of the resulting balance into level payments. This tool models both steps for fixed, variable, and indexed contracts, applies any surrender-charge schedule against early withdrawals, estimates the death benefit payable if the owner dies before annuitizing, and layers in optional income-rider guarantees. The detail most people miss: the payout it shows is the gross contract amount before ordinary income tax on the growth portion, so the number that lands in a bank account will be smaller than the figure displayed.

Worked example

A concrete input and expected output from the current implementation.

Input

Premium: $100,000, Type: Fixed, Guaranteed rate: 3.5%, Deferral period: 10 years, Payout: 10-year period certain, annual payments

Expected output

Accumulated value after 10 years: $141,059.88. Annual payout: $16,961.23 for 10 years (total payments $169,612.30).

The $100,000 premium compounds annually at 3.5% for 10 years to $141,059.88 (100000 x 1.035^10), then that balance is annuitized into 10 equal end-of-year payments using the same 3.5% rate as the payout discount factor: $141,059.88 divided by a 10-year annuity factor of 8.3166.

How the result is produced

1

Accumulation and crediting

During the deferral years, the premium grows using the crediting method chosen for the contract type: a stated compound rate for fixed, an assumed sub-account return for variable, or a simplified cap/participation-style rate for indexed. Any rider fee is subtracted from the crediting rate before compounding, since riders reduce the cash-value growth that funds the eventual annuitized payment.

2

Annuitization and payout

At the end of deferral, the accumulated value is divided by a present-value annuity factor built from the payout rate and the chosen term (period-certain years or a life-expectancy-based factor for lifetime payouts) to produce a level periodic payment. Surrender charges are applied separately, only when a withdrawal occurs inside the surrender period rather than at scheduled annuitization.

Good uses

  • Comparing the monthly income two competing annuity quotes (fixed vs. variable) would actually produce before signing
  • Checking how much a surrender charge would cost if the contract were cashed out early instead of held to term
  • Weighing an income rider's guaranteed withdrawal amount against straight annuitization for retirement income planning

Limits and checks

  • Indexed annuity growth is approximated with a flat assumed rate; real contracts credit interest through caps, participation rates, and spreads that reset annually and rarely track a single average number
  • Variable annuity projections assume a constant return for the whole deferral period; actual sub-account performance varies year to year, so the output is illustrative, not a guarantee
  • Death benefit and rider figures use simplified roll-up and benefit-base assumptions that may not match a specific carrier's contract language, which can shift the actual guaranteed amount

Common questions

Does the payout figure already account for taxes?

No. The tool projects gross contract values and payments. Ordinary income tax on the growth (and a 10% early-withdrawal penalty before age 59.5, for non-qualified contracts) is not subtracted, so actual after-tax income will be lower than shown.

Can I use this to model my specific insurer's indexed annuity?

Only as a rough approximation. Real indexed products use carrier-specific, annually-reset caps, participation rates, and spreads; entering one assumed average rate will not reproduce the exact crediting outcome of a particular contract.

References and verification

The example and behavioral notes were checked against the browser implementation. Standards and primary references below define the relevant format, formula, or platform behavior.

Related Tools