What Is the Purpose of an Annuity and How Does It Work?

The purpose of an annuity is to solve a problem no other financial product fully addresses: the risk of outliving your money. You hand an insurance company a lump sum or a series of deposits, and in return the company promises income for the rest of your life, shelters the money from annual taxes while it grows, and, with the right rider, can help pay for long-term care or transfer what’s left to your heirs.

Income You Can’t Outlive

The central job of an annuity is turning a pile of savings into a paycheck that keeps coming for as long as you’re alive. The insurer’s obligation is contractual, so payments continue even after your original deposit has been used up.1American Academy of Actuaries. Issue Brief – Annuities That’s what makes an annuity function like a personal pension for people who don’t get one through work.

Insurers can make this promise because they pool money from thousands of contract holders and use life-expectancy data to set sustainable payment amounts. People who die earlier than average effectively subsidize those who live longer. Economists call it mortality pooling or longevity risk transfer, and it works at a scale no individual saver can replicate alone.

How large your check is depends on three things: how much you put in, how old you are when payments start, and prevailing interest rates at that time. Waiting longer to turn on income usually means bigger payments, since the insurer expects to make fewer of them. Most contracts let you choose monthly, quarterly, or annual payouts. Joint-life options continue paying a surviving spouse, though the per-payment amount is smaller because the insurer is covering two lifetimes.

Tax-Deferred Growth Before You Draw

Before income begins, money inside an annuity grows without an annual tax bill. Federal law treats interest, dividends, and investment gains inside the contract as untaxed until you take money out.2Office of the Law Revision Counsel. 26 USC 72 – Annuities; Certain Proceeds of Endowment and Life Insurance Contracts The full balance keeps compounding year after year instead of shrinking each April.

A non-qualified annuity, meaning one you buy with after-tax dollars outside a retirement plan, has no annual contribution limit. You can deposit $50,000 or $5 million in a single transaction. That’s part of the appeal for high earners who’ve already maxed out their 401(k) and IRA and want another place to hold money without generating taxable events every year.

The trade-off shows up on the way out. For non-qualified annuities, the IRS treats gains as coming out first. Every dollar you withdraw is taxed as ordinary income until you’ve pulled out all the earnings; only then do you start getting your original deposit back tax-free.2Office of the Law Revision Counsel. 26 USC 72 – Annuities; Certain Proceeds of Endowment and Life Insurance Contracts If you annuitize and convert the balance to a lifetime stream, each payment is split between a taxable portion and a tax-free return of your original investment using what the IRS calls an exclusion ratio.

There’s also a penalty for tapping the money too early. Withdrawals before age 59½ generally trigger a 10% additional tax on the taxable portion, on top of regular income tax.3Office of the Law Revision Counsel. 26 USC 72 – Annuities; Certain Proceeds of Endowment and Life Insurance Contracts – Section 72(q) Exceptions cover death, disability, and certain structured payment plans.4Internal Revenue Service. Retirement Topics – Exceptions to Tax on Early Distributions For most people, this penalty makes annuities a poor place to park money you might need before retirement.

Matching the Contract Type to Your Goal

Not every annuity works the same way. The type you pick determines how the money grows, how much market risk you take on, and what the insurer guarantees.

A fixed annuity locks in a specific interest rate for a set period. Your principal doesn’t move with the market. This is the low-drama option for savers who value certainty over upside.

A variable annuity puts your money into investment subaccounts that behave like mutual funds. Returns rise and fall with the market, so you carry the investment risk but capture more of the upside. Variable contracts are regulated as securities and carry higher fees than the other types.5SEC. Variable Annuities: What You Should Know

A fixed indexed annuity ties returns to a market index such as the S&P 500, with a guarantee that your principal won’t drop below zero in a down year. Your gains are limited by caps, participation rates, or spreads that reduce how much of the index return actually gets credited. A 5% cap means you’ll never earn more than 5% in a period no matter how well the index does. An 80% participation rate credits you with 80% of the index gain. Some contracts stack these limits together. The downside protection is real; so is the ceiling.

Costs That Can Undermine the Purpose

Annuity fees are where buyers get surprised, especially with variable contracts. The SEC identifies several layers of charges that quietly erode returns. A mortality and expense risk charge runs around 1.25% of account value per year and pays the insurer for the guarantees built into the contract. Administrative fees add either a flat $25 to $30 a year or roughly 0.15% of account value.5SEC. Variable Annuities: What You Should Know The subaccounts inside a variable annuity charge their own fund expenses on top of that.

Then there are surrender charges. If you pull money out during the first six to ten years, you’ll pay a penalty that typically starts around 7% and drops by roughly a percentage point each year until it disappears.6Investor.gov. Surrender Charge Most contracts do let you withdraw up to 10% of the account value each year without a surrender charge, but the bulk of the money is locked up until the schedule runs out.

Fixed and fixed indexed products generally carry lower annual fees than variable ones, though their surrender periods can be just as long. Before signing, add up every fee layer and compare the total annual cost against what you’d pay in a low-cost index fund. The tax deferral has to earn its keep.

Paying for Long-Term Care on Tax-Advantaged Terms

A private nursing home room costs roughly $137,000 a year on a national average, and a shared room runs about $119,000. Hybrid annuities pair a traditional deferred annuity with a long-term care rider, creating a single contract that acts as both a savings vehicle and a care-funding source.

Benefits switch on when a licensed professional certifies that you can’t perform at least two of six basic daily activities: bathing, dressing, eating, toileting, continence, or transferring, meaning moving between a bed and a chair.7Administration for Community Living. Receiving Long-Term Care Insurance Benefits Cognitive impairment such as Alzheimer’s disease is also a qualifying trigger in most contracts. Once approved, you draw from the annuity’s value to pay home health aides, assisted living, or nursing home bills.

The tax advantage is what makes the hybrid design distinctive. A provision added by the Pension Protection Act of 2006 says charges against an annuity’s cash value used to pay for qualified long-term care coverage aren’t included in your gross income.8Office of the Law Revision Counsel. 26 USC 72 – Annuities; Certain Proceeds of Endowment and Life Insurance Contracts – Section 72(e)(11) In practice, that lets you pull money out of a contract with significant gains and pay zero tax on it, as long as the money goes to qualified care.9Internal Revenue Service. Notice 2011-68 – Annuity Contracts With Long-Term Care Insurance Riders Ordinary withdrawal rules would tax those same gains as income. The rider effectively turns taxable growth into tax-free healthcare dollars.

The hybrid design also fixes a common complaint about standalone long-term care insurance: if you never need care, unused funds stay in the contract and pass to your beneficiaries as a death benefit. You’re not making a use-it-or-lose-it bet.

Passing the Balance to Your Heirs

Every annuity includes a death benefit that goes directly to the beneficiaries you name. If you die before annuitizing, your beneficiaries receive at least the account value, and sometimes more if you’ve added a rider. Payment goes to them directly after the insurer receives a death certificate and claim form, without probate.

The tax picture for heirs, though, is less favorable than with most other inherited assets. Annuity gains don’t get a stepped-up basis at death. The IRS treats the growth as income in respect of a decedent, so beneficiaries owe ordinary income tax on every dollar of gain above your original investment.10Internal Revenue Service. Revenue Ruling 2005-30 – Income in Respect of Decedents Invest $200,000, let it grow to $350,000, and your heirs owe income tax on the $150,000 of gain. If estate tax is also owed, beneficiaries can claim a deduction for the portion of estate tax tied to the annuity gain, but that only partially offsets the bill.

Federal law also controls how fast the money has to come out. If you die before the annuity starting date, the entire value generally must be distributed within five years.11Office of the Law Revision Counsel. 26 USC 72 – Annuities; Certain Proceeds of Endowment and Life Insurance Contracts – Section 72(s) A beneficiary who starts taking payments over their own life expectancy within a year of your death can stretch distributions beyond that window.

A surviving spouse gets the most flexible treatment. The spouse can step in as the new owner and continue the contract as if nothing happened, deferring taxes until they eventually take withdrawals.11Office of the Law Revision Counsel. 26 USC 72 – Annuities; Certain Proceeds of Endowment and Life Insurance Contracts – Section 72(s) Non-spouse beneficiaries don’t have that option and face the five-year or life-expectancy schedule. It’s one of the most overlooked downsides of using annuities as a wealth-transfer tool.

What Backs the Promise

An annuity is only as strong as the insurance company behind it, so it’s worth knowing what happens if the insurer fails. Every state maintains a life and health insurance guaranty association that steps in when a member insurer becomes insolvent. In most states, the association protects up to $250,000 in present value per annuity contract per failed insurer.12NOLHGA. How You’re Protected

A few states set higher caps. Connecticut, New York, Utah, and Washington protect up to $500,000, while Arkansas and Oklahoma cover $300,000.12NOLHGA. How You’re Protected Some states treat contracts still accumulating differently from ones already paying out income. If you’re placing a large sum, splitting it across two or more highly rated insurers keeps you inside the guaranty limits. Check your own state’s rules before assuming the standard $250,000 figure applies to your situation.