Most retirement worry boils down to one question: will the money last as long as I do? You can build a careful portfolio, but markets wobble, and no spreadsheet knows how long you'll live. A single premium immediate annuity — usually shortened to SPIA — answers that question directly. You give an insurance company one lump sum, and it promises to send you a set amount every month for the rest of your life. In effect, you're buying yourself a private pension.
It's the oldest, plainest idea in the annuity world, and in many ways the easiest to understand. There's no index, no cap, no cash value growing in the background. There's just a trade: a chunk of your savings today, in exchange for a guaranteed check that never stops while you're alive.
How an immediate annuity actually works
With an immediate annuity, income starts almost right away — typically within one month to a year of handing over your premium. That's the key difference from the fixed (MYGA) annuities and CDs most savers know, which are built to accumulate a lump sum over time. A SPIA skips accumulation entirely and goes straight to distribution.
The reason it can pay more than simply drawing down a savings account is mortality pooling. The insurer sells thousands of these contracts. Some holders live into their nineties; some, sadly, don't. By pooling that risk, the company can promise everyone a higher, steadier payout than any one person could safely give themselves from the same lump sum — because no single retiree can know which group they'll fall into. That pooling is exactly why a SPIA delivers the highest guaranteed income per dollar of any annuity on the market.
What sets the size of your check
When you request a quote, the monthly amount hinges on a handful of factors — and understanding them helps you see why two people can get very different numbers:
| Factor | Effect on your payment |
|---|---|
| Your age at start | Older start = larger checks (fewer expected years) |
| One life or two | Joint (you + spouse) pays less than single life |
| Interest rates | Higher rates when you buy = higher payout, locked in |
| Payout option | Life-only pays most; guarantees & refunds pay less |
| Premium amount | More premium = proportionally more income |
Notice what's not on that list: the stock market. Once your payment is set, it doesn't move with the S&P 500, and a bad year on Wall Street can't cut it. That certainty is the whole point.
The payout options — and the early-death worry
The most common objection I hear in Carson City and Reno kitchens is, "What if I hand over the money and then pass away two years later?" It's a fair concern, and the payout options exist precisely to address it:
- Life only. The biggest check, but payments stop at your death and nothing goes to heirs. Best when maximizing income is the only goal.
- Life with period certain. Pays for life, but guarantees payments for a minimum number of years (say 10 or 20). If you die early, a beneficiary collects the rest of that period.
- Joint and survivor. Keeps paying as long as either you or your spouse is alive — the natural choice for couples who both need the income.
- Cash or installment refund. Guarantees that if you die before collecting your full original premium, your beneficiary receives the difference.
Each guarantee lowers the monthly amount a little, because the insurer is now promising income for longer or to someone else. But for most families, trading a slightly smaller check for the peace of mind that the money won't simply vanish is well worth it.
The Nevada tax angle
Here's where our state quietly helps. Because Nevada has no state income tax, none of your annuity income is taxed at the state level. The federal treatment then depends on where the money came from. If you fund the SPIA with ordinary after-tax savings — a non-qualified annuity — the IRS applies an exclusion ratio: part of every payment is treated as a tax-free return of your own principal, and only the earnings portion is taxable. If instead you fund it from an IRA or other pre-tax account, each payment is fully taxable as ordinary income, just like any other retirement withdrawal. Either way, pairing predictable annuity income with no state tax makes Nevada an unusually friendly place to build a guaranteed income floor.
Where a SPIA fits — and where it doesn't
An immediate annuity isn't a whole plan; it's one tool, and a sharp one. The approach I most often walk through is the income floor strategy: add up your essential monthly costs — housing, food, utilities, insurance — subtract what Social Security (and any pension) already covers, and consider annuitizing just enough savings to guarantee the rest. The basics are then covered for life no matter what markets do, which frees the rest of your portfolio to stay invested for growth and flexibility.
It tends to be a strong fit when you:
- Don't have a traditional pension and want pension-like certainty;
- Worry about outliving your savings or managing withdrawals in your later years;
- Have ample other funds for emergencies, so locking up one slice is comfortable.
It's usually a poor fit when you need access to the lump sum, when a health condition sharply shortens your life expectancy, or when that specific money is earmarked for heirs. In those cases, a growth-oriented contract with guaranteed lifetime withdrawals — which keeps you in control of the balance — or a different tool altogether may serve you better. And if you're a Nevada PERS retiree weighing survivor options, the math of guaranteed income is worth running carefully before you decide.
Because I'm independent, I compare immediate-annuity quotes from multiple A-rated carriers — the payout on the exact same premium can vary meaningfully between insurers — and I'll always show you how a SPIA stacks up against simply keeping the money invested. You can see how I think about annuities and retirement income across Northern Nevada, and the first conversation is always free.