Immediate Annuity

An immediate annuity is a contract in which you pay an insurer a lump sum and it begins paying you a stated amount, typically monthly, starting within about a year. The market calls the single-payment version a SPIA, for single premium immediate annuity — industry shorthand rather than a regulator's category. It is the purest form of the product: no account value to watch, no crediting formula to decode, just a premium in and a check out. And a point that trips up nearly every reader: "immediate" is not an alternative to "fixed." When payments start and how value grows are two independent choices that cross each other. A fixed immediate annuity and an indexed deferred annuity are both real, ordinary products; "deferred" is not the opposite of "fixed."

The reason an immediate annuity can pay more than a portfolio safely distributes is mortality pooling, and it is worth understanding because it is the one thing no investment can replicate. The insurer sells thousands of these contracts. Some buyers die in year three; some live to 100. Because the insurer only has to fund the group's actual average, it can promise each individual more than any of them could safely withdraw alone, where each must self-insure against being the one who lives longest. That extra is sometimes called a mortality credit. It is also why the payout rate on an immediate annuity is not a rate of return: most of each early payment is your own principal coming back, and whether the contract turns out well depends substantially on how long you live.

The payout options are where the real design decisions sit, and each one trades income for protection. Life-only pays the most and stops at death, even if that is a month after the first check. Period-certain guarantees payments for a stated number of years to you or your beneficiary. Cash-refund or installment-refund returns any unpaid premium to heirs. Joint and survivor continues payments — in full or at a reduced percentage — for as long as either spouse lives, which for most married couples is the option that matches the actual risk. Some contracts offer an annual increase or an inflation adjustment, which lowers the starting check noticeably in exchange for protecting purchasing power later; without it, a fixed monthly payment loses real value every year, and over a 25-year retirement that erosion is substantial.

The tax mechanism is where most explanations go wrong, so be precise about it. If you buy an immediate annuity with money that has already been taxed — a non-qualified purchase — the tax code treats part of each payment as a tax-free return of your own principal and part as taxable earnings, in a proportion called the exclusion ratio. That is the familiar rule, and it only applies to non-qualified contracts. Buy an immediate annuity inside a traditional IRA or a 401(k) and there is no exclusion ratio at all, because none of the principal was after-tax: every dollar of every payment is ordinary income, exactly as an IRA withdrawal would have been. A Roth account is the opposite case, with qualified payments coming out tax-free. The arithmetic of the exclusion ratio belongs on its own page; what belongs here is the qualifier, because a quote presented as "part of this is tax-free" is simply wrong when the premium comes out of a traditional IRA.

Two practical notes. First, quotes are highly sensitive to prevailing interest rates as well as to age, so the same premium buys materially different income at different times, and it is worth getting quotes from several insurers because pricing genuinely differs. Second, the guarantee is the insurer's own, backed by a state guaranty association within limits that vary by state, which is why large premiums are often split across two or three carriers.

The sequence is short: you request quotes for a specific premium, age, state, and payout option; you fund the contract; payments begin, usually the following month; and they continue on the terms you selected for as long as the contract specifies.

A hypothetical example. Marcus, 70, has $1.1 million saved and wants a guaranteed floor under his essential spending. He commits $150,000 to a life-only immediate annuity and receives a hypothetical quote of $985 per month, or $11,820 a year — a payout rate of about 7.9% of the premium. That figure looks extraordinary next to any sustainable withdrawal rate, and the reason is that it is not a return: it includes his own principal coming back, it stops at his death, and it leaves nothing for his heirs.

Change the option and watch the price of protection. Suppose the same $150,000 with a 100% joint and survivor option covering his wife quotes $820 per month, or $9,840 a year. He gives up $1,980 of annual income to guarantee that payments continue for whichever of them lives longer — which, for a couple, is usually the risk that actually needs covering. (These quotes are hypothetical and illustrative only; real pricing moves with interest rates, ages, state, and insurer.)

Two things Marcus should not lose sight of. The $150,000 is committed: it cannot be redirected to a roof repair or a medical bill, which is why an annuity is a complement to a liquid portfolio and not a replacement for one. And because he bought it inside his traditional IRA, every one of those payments is fully taxable as ordinary income, with no tax-free portion.

Pros

• Income that cannot be outlived, which is the only clean answer to longevity risk that markets do not provide.
• Mortality pooling makes the payout higher than a portfolio can sustainably distribute over an open-ended horizon.
• Radically simple to compare: the quote is dollars per month, so several insurers can be shopped on one number.
• A guaranteed floor under essential spending removes sequence of returns risk from that part of the budget and often makes retirees more willing to spend the rest.
• No ongoing fee to monitor, no crediting formula, no surrender schedule to track.

Cons

• Generally irrevocable and illiquid — the premium is not available for emergencies, opportunities, or heirs.
• A level payment loses purchasing power every year unless you pay for an increasing option, which cuts the starting check.
• The guarantee depends on the insurer's solvency, with only state guaranty association coverage behind it, at limits that vary by state.
• Quotes depend heavily on interest rates at purchase, so timing matters in a way buyers cannot control.
• Bought inside a traditional IRA or 401(k), payments are fully taxable ordinary income with no tax-free component.