SPIA Immediate Annuity Calculator

What Is a SPIA — Single Premium Immediate Annuity?

A Single Premium Immediate Annuity (SPIA) is an insurance contract where you hand over a lump sum to an insurance company in exchange for guaranteed monthly income that begins immediately (typically within 1-12 months) and lasts for life or a fixed period. SPIAs are the simplest and most actuarially fair type of annuity — a pure pension-like income stream with no investment component, no fees layered on top, and no cash value to surrender.

SPIAs are used to convert a portion of retirement assets into guaranteed lifetime income, eliminating longevity risk (the risk of outliving your money). The Federal Reserve\'s 2024 Survey of Consumer Finances shows median 65-74-year-old household retirement assets near $200,000 — making the SPIA-vs-self-management decision relevant for millions of retirees.

2026 Interest Rate Environment Favors SPIAs

SPIA payout rates closely track 10-year US Treasury yields and corporate AA-rated bond yields, since insurers fund obligations primarily through fixed-income investments. The Federal Reserve\'s 2026 federal funds rate of 4.25-4.50% per the January 2026 FOMC statement keeps SPIA payouts at multi-decade highs (source: federalreserve.gov). For a 65-year-old male, a $250,000 life-only SPIA in 2026 produces approximately $1,650-$1,800/month — a 7.9-8.6% income yield that would have been around 5% in 2020.

This rate environment makes SPIAs more attractive than they have been in 20+ years. Income annuity payout rates from major issuers including New York Life, MassMutual, Pacific Life, and Mutual of Omaha are tracked monthly by industry sources like Cannex and Beacon Research. Get 3-5 quotes through a fee-only fiduciary or comparison platform before committing — payouts vary 3-5% across competing insurers for identical contracts (source: NAIC).

Payout Options — Life-Only vs Period-Certain vs Joint

The five common SPIA payout structures: (1) Life-only — highest monthly payment, but income ends entirely at death; if you die in year 2, the insurer keeps the residual; (2) Life with period certain (10 or 20 year) — pays for life OR the period, whichever is longer; if you die early, beneficiary gets remaining period payments; reduces monthly amount by 5-15%; (3) Joint and survivor — pays for two lives, with optional 50%, 75%, or 100% survivor benefit; reduces initial monthly amount by 10-25%; (4) Period certain only — pays for fixed years regardless of death; functions more like a structured payout than insurance; (5) Cash refund — beneficiary gets remaining premium minus payments received.

Most retirement planners recommend life-with-10-year-period-certain or joint-50% as the sweet spot — small income reduction in exchange for meaningful family protection if you die early. Life-only maximizes income but should typically only be used when you have ample other assets and the SPIA is a small portion of total wealth.

SPIA vs Self-Managed Withdrawal — The Key Tradeoff

The classic alternative to a SPIA is the 4% safe withdrawal rule from a diversified portfolio. At 4% on $250K, you withdraw $10,000/year ($833/month) — substantially less than a SPIA at 2026 rates ($1,650-$1,800/month for life-only). The SPIA wins on income, but you lose flexibility, control, and the upside of strong market returns. For balanced retirement income, many advisors recommend annuitizing 25-50% of investable assets to cover essential expenses, leaving the rest invested for discretionary spending and legacy.

For non-annuitized retirement income strategies, see our Social Security breakeven, RMD calculator, and pension lump-sum vs annuity. For longevity-related planning, see our Social Security COLA 2027 calculator.

Last updated April 2026. Sources: federalreserve.gov, NAIC, SEC investor guide. Estimates only — actual SPIA quotes vary by insurer, state, and benefit option. Get multiple quotes before purchase.