The difference is when income starts, and it changes almost everything else about how the product behaves. An immediate annuity takes a lump sum and begins paying you within about a year — the highest guaranteed payment for your money, but the exchange is generally permanent. A deferred annuity accumulates value first and starts income later, keeping an account value you can access along the way, subject to surrender charges. Neither is better in the abstract. They answer different questions about your timeline. Our guide to how do annuities work covers the shared mechanics, and our annuities overview lays out the product categories.
The Difference in One Table
| Feature | Immediate annuity (SPIA) | Deferred annuity |
|---|---|---|
| When income starts | Generally within about a year | A future date you choose |
| Accumulation phase | None | Yes, value grows before income |
| Account value you can access | Generally none once payments begin | Yes, subject to surrender charges |
| Reversible | Usually irrevocable | Can typically be surrendered or exchanged |
| Income per dollar of premium | Highest available today | Depends on growth and start date |
| Death before income begins | Not applicable | Account value generally passes to beneficiary |
| Typical buyer age | At or near retirement | Several years before retirement |
| Main purpose | Turn savings into income now | Grow safely, then convert later |
How an Immediate Annuity Works
You hand an insurance company a lump sum. It calculates a payment based on your age, the payout option you select, prevailing interest rates, and in some states gender. Payments generally begin within about a year and continue according to the option you chose.
The appeal is straightforward. For a given lump sum, an immediate annuity produces the highest guaranteed lifetime payment available, because the insurer starts paying immediately and pools longevity risk across many contract holders. If you want a sense of scale, our guide to how much does an annuity pay per month shows typical figures by premium amount.
The trade-off is equally straightforward. Once payments begin, the exchange is generally irreversible. You no longer have a balance to draw on for an emergency. Our post on annuitization explained covers what that conversion actually commits you to.
Three payout options soften that:
Each of these lowers the monthly payment relative to a life-only option. That is the price of the guarantee.
How a Deferred Annuity Works
A deferred annuity has two phases.
During accumulation, your money grows — at a guaranteed rate in a fixed annuity or MYGA, linked to an index in a fixed indexed annuity, or in market subaccounts in a variable annuity. Growth is tax deferred. Our guides to what is a MYGA annuity and fixed indexed annuities cover how each credits interest.
During distribution, you either annuitize the contract into an income stream, or take withdrawals, or activate an income rider if the contract has one.
The key practical difference is that you retain an account value throughout accumulation. You can access it, subject to surrender charges and the free withdrawal allowance. You can exchange it into a different annuity tax-free through a 1035 exchange. If you die before income begins, the value generally passes to your beneficiary.
That flexibility is what you are paying for in the form of a lower eventual payment than an immediate annuity purchased with the same amount today.
The Middle Option — Deferred Income Annuities
Worth its own section because most people do not know it exists.
A deferred income annuity is purchased now, with income beginning at a specified future date — sometimes many years out. Because the insurer holds the money longer before paying anything, the eventual income per dollar of premium is typically higher than an immediate annuity bought at the same age.
It is sometimes described as longevity insurance, and the logic is clean. Rather than insuring your whole retirement, you insure the far end of it — committing a smaller sum now to guarantee income in your eighties, and managing the earlier years from your portfolio.
A qualified longevity annuity contract, or QLAC, is a version held inside a qualified retirement account under specific IRS rules that govern how much can be placed and when income must begin. The rules and limits are specific, so this is a conversation for an advisor and a tax professional rather than an article.
Which One Fits Your Timeline
An immediate annuity generally suits you if:
A deferred annuity generally suits you if:
Many retirees use both across a single retirement — a deferred contract through their fifties and early sixties, converted to income when work stops. Our retirement income planning page covers how those layers sequence.
The Decision Most People Get Wrong
Buying an immediate annuity with money you might need.
Because the exchange is generally permanent, an immediate annuity should be funded only with money genuinely earmarked for income. Emergency reserves, near-term expenses, and money you may want to leave flexible do not belong in it.
The usual sequence works better. Fund your emergency reserve. Cover near-term needs with liquid savings. Then convert what remains and is genuinely surplus into guaranteed income sized to your income gap. Our post are annuities a good investment walks through calculating that gap.
Questions to Ask Before Either
If you would rather have those answers in writing first, you can request a free annuity review or find a local annuity advisor near you.
Final Thoughts
Immediate and deferred annuities are the same basic promise separated by timing. The immediate version buys the most guaranteed income available today at the cost of flexibility. The deferred version preserves flexibility and the option to decide later, at the cost of a lower eventual payment. Which fits depends on when you need the income and how much of your savings can be committed. A licensed independent advisor can quote both structures side by side for your exact ages — at no cost and no obligation. You can schedule a free consultation whenever you are ready.