Should You Buy an Annuity in Retirement? A Plain-English Guide to All the Types

What Are the Four Main Types of Annuities?

1. Single Premium Immediate Annuity (SPIA): You hand over a lump sum, payments start within a year. Simplest form. No ongoing fees beyond what's baked into the payout rate. Used primarily for guaranteed income floor.

2. Deferred Income Annuity (DIA): Like a SPIA but payments start years or decades later. Useful for longevity insurance — protecting against living past 85-90.

3. Fixed Indexed Annuity: Returns linked to a market index (like the S&P 500) with a floor (usually 0% — you don't lose money in down years) and a cap (you don't get all the upside). More complex. Higher fees. Often sold aggressively.

4. Variable Annuity: Your money is invested in sub-accounts (like mutual funds). Full market exposure up and down. Highest fees — management fees, mortality & expense charges, rider fees can total 2-3% annually. Optional guarantee riders add even more cost.

The analysis engine focuses on SPIAs and DIAs when modeling guaranteed income options because their cost structure is transparent and their role is clear: converting a known sum into known income.

When Do Annuities Actually Make Sense?

An annuity makes sense when you need guaranteed income beyond what Social Security and pensions provide, and you're willing to sacrifice liquidity and potential upside for certainty.

Good fit: Retiree with $1.5M portfolio, monthly spending of $8,000, Social Security + pension covering $5,000. The $3,000/month gap could be covered by a SPIA on $500,000 (roughly $2,800-3,200/month depending on age and rates), leaving $1M invested for growth and flexibility.

Poor fit: Using an annuity for the entire portfolio (eliminates flexibility and inflation protection). Using a variable annuity when low-cost index funds achieve the same market exposure at 1/10th the cost. Using any annuity before maximizing Social Security delay (Social Security is essentially a government-backed inflation-adjusted annuity with survivor benefits).

The analysis consistently shows: delay Social Security before buying a SPIA. Social Security's implied return is typically 6-8% — better than any commercial annuity.

What Should You Watch Out For?

Surrender charges: Most annuities lock up your money for 5-10 years with declining surrender charges (7% in year 1, 6% in year 2, etc.). Early access triggers these penalties.

Fees: Variable annuities commonly charge 2-3% annually when you add up all layers. On a $200,000 annuity, that's $4,000-6,000/year in fees — often more than a fee-only financial planner would charge for your entire financial picture.

Complexity: If you can't explain the product in one sentence, it's probably not a good fit. SPIAs are simple: 'I give them $X, they pay me $Y per month for life.' Variable annuities with guaranteed minimum withdrawal benefits and enhanced death riders require a PhD in insurance to evaluate.

Inflation: Most annuity payments are fixed. A $3,000/month annuity payment buys $1,800 of goods in 20 years at 3% inflation. Some annuities offer inflation riders, but they significantly reduce the initial payment.

Want to See If an Annuity Fits Your Retirement Income Plan?

The analysis at myaifinancialplan.com models your guaranteed income needs and shows whether Social Security delay, pension optimization, or a SPIA best fills your income gap. Start free at myaifinancialplan.com.