An annuity is a contract between you and an insurance company. You make a lump sum payment or a series of payments, and in return the insurer agrees to pay you a regular income stream — either starting immediately or at a future date. The core function of an annuity is converting savings into guaranteed income, particularly in retirement.
Annuities are often misunderstood and frequently oversold. Here is what you need to know before buying one.
How Annuities Work
The basic mechanism: you transfer money to an insurance company, which invests it and promises to return it to you — with growth — as a series of payments over time. The key word is “guaranteed.” Unlike a stock portfolio, which can fluctuate, a properly structured annuity provides predictable income that cannot be outlived.
The two main phases of an annuity are:
- Accumulation phase: Your money grows, either at a fixed rate, linked to a market index, or invested in market subaccounts.
- Distribution phase (annuitization): You receive regular payments — monthly, quarterly, or annually — for a specified period or for the rest of your life.
Types of Annuities
Fixed annuity: Pays a guaranteed, fixed interest rate during the accumulation phase and a predetermined income payment during distribution. Predictable and simple, with no market risk.
Variable annuity: Invested in market subaccounts (similar to mutual funds). Returns and future income payments fluctuate with market performance. Higher potential returns but with investment risk transferred to you.
Fixed indexed annuity (FIA): Returns are linked to a stock market index (like the S&P 500) but with a floor (typically 0% — you cannot lose principal) and a cap on upside. You participate in market growth up to a limit in exchange for downside protection.
Immediate annuity (SPIA): You make a single lump sum payment and begin receiving income payments within one month to one year. Ideal for retirees who want to convert a portion of savings into guaranteed income immediately.
Deferred income annuity (DIA): You pay now and begin receiving income at a future date — often 10 to 20 years from purchase. Because payments are deferred, you receive more income per dollar invested than an immediate annuity.
What Annuities Are Good For
Annuities solve a real problem: longevity risk — the risk of outliving your money. If you retire at 65 and live to 92, a portfolio drawing down at 4% per year may run out. An annuity provides income that cannot run out, no matter how long you live.
The strongest use case for annuities is retirees who:
- Do not have a pension and want guaranteed income beyond Social Security
- Are risk-averse and cannot stomach large portfolio drawdowns in retirement
- Want to cover fixed expenses (housing, food, healthcare) with guaranteed income streams
The Problems with Annuities
Annuities have a complicated reputation — and for good reason. Many annuity products are:
- Expensive: Variable annuities often carry total fees of 2% to 3% per year, including mortality and expense charges, administrative fees, and fund expenses. These dramatically erode returns over time.
- Complex: Riders, caps, floors, surrender charges, and payout options create enough complexity that few buyers fully understand what they purchased.
- Illiquid: Surrender charges — penalties for withdrawing money early — can be 7% to 10% in the first few years. Your money is locked up.
- High-commission products: Annuities pay among the highest commissions in the financial industry. This creates strong incentive for advisors to recommend them even when other products would serve the client better.
When to Avoid an Annuity
- If you need liquidity — annuity money is difficult and costly to access during surrender periods
- If you already have sufficient guaranteed income (pension + Social Security covers your expenses)
- If you are buying inside an IRA or 401(k) — the tax deferral an annuity provides is redundant inside an already tax-advantaged account
- If the fees exceed 1% per year — the guaranteed income benefit rarely justifies fees above that threshold
Low-Cost Annuities Worth Considering
Not all annuities are problematic. Simple, low-cost immediate annuities (SPIAs) from highly-rated insurers can be efficient tools for converting savings to guaranteed income. Companies like TIAA and direct-to-consumer platforms offer straightforward annuities with minimal fees and no surrender charges.
If you are evaluating an annuity, compare it to a simple immediate annuity with no riders. If the complex product does not clearly outperform the simple one on the dimensions that matter to you, buy the simple one.
Bottom Line
An annuity is a legitimate retirement planning tool when used for its intended purpose: converting savings into guaranteed lifetime income. Simple, low-cost immediate annuities from highly-rated insurers can address longevity risk effectively. Complex variable annuities with layers of riders and fees are often sold rather than bought — and rarely justify their costs. If an advisor is recommending an annuity, ask about the fee structure, surrender charges, and what simple alternative products were considered.