Estimate your periodic income from an annuity based on principal, interest rate, payout period, and type. Supports inflation adjustment.
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An annuity payout calculator uses the present value of an annuity formula to determine your periodic income. The standard formula is PMT = PV × [r(1+r)n] / [(1+r)n − 1], where PV is your principal, r is the periodic interest rate, and n is the total number of payment periods. For a deferred annuity, the principal first grows at compound interest during the deferral period, increasing the future value available for payouts. According to the SEC, understanding how interest compounds during accumulation is essential before purchasing any annuity product.
An immediate annuity begins paying income within one period after you invest your lump sum, making it ideal for retirees who need income right away. A deferred annuity delays payouts for a set number of years, allowing your money to grow tax-deferred during the accumulation phase. The longer the deferral, the larger each payout becomes because the principal compounds over more periods. The NAIC recommends comparing both types based on your income timeline and liquidity needs. Last updated: May 2026.
Annuities offer several payout frequencies. Monthly payouts provide steady cash flow for covering regular expenses. Quarterly payouts reduce transaction frequency while maintaining predictable income. Annual payouts suit those with other income sources who want a yearly lump sum. The choice of frequency affects the per-period amount due to compounding differences. Most fixed annuities guarantee a minimum interest rate, while variable annuities tie returns to market performance, creating fluctuating payouts.
Annuity payouts are partially taxable depending on whether the annuity was purchased with pre-tax or after-tax dollars. With a non-qualified annuity (after-tax money), each payment is split into a tax-free return of principal and taxable earnings using the exclusion ratio. Qualified annuity payouts from IRAs or 401(k) rollovers are fully taxable as ordinary income. Early withdrawals before age 59½ may incur a 10% IRS penalty. Consult a tax professional to understand how annuity income affects your overall tax bracket and Social Security benefits.
The single biggest lever in any annuity payout calculator is the assumed interest rate — and small changes make big differences. A $500,000 principal paying out over 20 years at 4% yields roughly $3,030/month; at 5% it jumps to $3,300/month; at 6% it hits $3,582/month. That is a $552/month or 18% swing from a 200-basis-point rate difference over the same principal. Insurance carriers set annuity rates using long-duration bond yields (typically the 10-year Treasury plus a credit spread), so shop quotes when the U.S. Treasury Daily Yield Curve is elevated. Also: fixed annuities guarantee the rate for the payout period; variable annuities do not — the rate you see on the illustration is a "projection" that can drop with market performance. When comparing quotes, always ask the carrier for the guaranteed minimum rate and rerun this calculator with that number as your worst-case scenario. Updated 2026-07-02.
Retirees often compare an annuity payout calculator to the 4% Rule (a self-managed portfolio drawing down 4% of starting balance, inflation-adjusted, over 30 years). Both aim to convert a lump sum into lifetime-ish income, but tradeoffs differ sharply: an annuity guarantees income for the payout term regardless of market performance, but you give up principal and any remainder at death (unless you buy a "return of premium" rider). The 4% Rule keeps market upside and heirs inherit the residual, but requires you to bear sequence-of-returns risk — a bad decade early in retirement can bankrupt the plan. Per the CFPB Planning for Retirement guide, the standard hybrid is annuitizing 30–50% of the portfolio to cover essential expenses (housing, food, healthcare) and leaving the rest invested for growth and legacy. Run both this annuity payout calculator and a 4% withdrawal projection side by side before choosing.