How Annuities Work: What You're Actually Buying

An annuity is a contract between you and an insurance company where you give them money now, and they promise to pay you back in regular installments over time or for the rest of your life

You buy an annuity by handing a lump sum to an insurance company. In return, that company commits to sending you payments on a schedule you choose — monthly, quarterly, or annually. The payments can last for a set number of years, or they can continue for as long as you live. The insurance company keeps the money you don't when ready receive, invests it, and uses the returns to fund your future payments.

An annuity is not a savings account, a stock, or a bond. It is a contract that transfers risk from you to the insurance company. You no longer have to worry about running out of money if you live longer than expected; the insurance company bears that risk instead. In exchange, you give up access to the full amount you paid in, and you accept that inflation will reduce what your payments buy over time.

Key Takeaways

• An annuity converts a lump sum of money into a stream of payments that can last for a fixed period or for your entire life.
• The insurance company keeps your money, invests it, and sends you payments according to the contract terms you choose at purchase.
• Annuities come in several types — when ready, deferred, fixed-rate, and variable — each with different payment structures and investment risk.
• Once you buy an annuity, you typically cannot get your money back in full, so this choice is permanent and should match your long-term financial plan.

The difference between when ready and deferred annuities

An when ready annuity begins paying you within one year of purchase, usually within one to three months. You hand over a lump sum — say $200,000 — and the insurance company starts sending you monthly checks right away. This type is common for people who have just retired and want income to start flowing when ready.

A deferred annuity delays payments. You give the insurance company money now, but the payments do not start until a date you choose in the future — perhaps 10 years from now, or when you turn 75. During the waiting period, your money sits with the insurance company and grows. Deferred annuities are often bought years before retirement, allowing the balance to compound before payouts begin.

The longer you defer, the larger your eventual payments tend to be, because the insurance company has more time to invest your money. However, the exact growth depends on the type of annuity you choose and the terms of your contract.

Fixed-rate versus variable annuities

A fixed annuity pays you a set amount each month for life or for a set term. The insurance company guarantees this payment, regardless of how markets perform. If you buy a fixed annuity that pays $1,500 per month, you will receive $1,500 every month for as long as the contract specifies. This predictability appeals to people who want to know exactly what income they will have.

A variable annuity ties your payments to the performance of investments you choose — typically mutual funds or similar options offered by the insurance company. If those investments grow, your payments may increase. If they decline, your payments may fall. Variable annuities shift investment risk back to you; the insurance company no longer guarantees a fixed payment amount. Some variable annuities include a rider that guarantees a minimum payment even if investments perform poorly, but this may provide comes with higher fees.

Fixed annuities protect you from market swings but expose you to inflation risk — your payments stay the same while prices rise. Variable annuities let you chase higher returns but require you to accept that your income may fluctuate.

How annuity payments are structured

When you buy an annuity, you choose how the insurance company will pay you back. The most common options are:

• Life annuity: Payments continue for as long as you live, then stop. The insurance company keeps any remaining balance. This option provides the highest monthly payment because the company is betting you will not live extremely long.
• Period-certain annuity: Payments last for a fixed number of years — say 20 years — regardless of whether you are alive. If you die before the period ends, your beneficiary receives the remaining payments. Monthly payments are lower than a life annuity because the company knows exactly how long it will pay.
• Life with period-certain: Payments continue for your entire life, but if you die within a set period (often 10 or 20 years), your beneficiary receives the remaining payments. This hybrid option costs more than a straight life annuity but less than a period-certain annuity.
• Joint and survivor annuity: Payments continue for as long as either you or your spouse lives. The surviving spouse typically receives a reduced payment after the first person dies. This option is common for married couples but results in lower monthly payments than a single-life annuity.

Each structure trades off monthly payment size against how long payments continue and who receives them. A life annuity maximizes your monthly income but provides nothing to heirs. A period-certain annuity guarantees payments to your estate but ends at a fixed date.

What happens to your money once you buy

Once you sign an annuity contract and hand over your money, that money belongs to the insurance company. You do not own it anymore. The insurance company invests it, uses the returns to fund your payments, and keeps any surplus. You receive only the payments specified in your contract.

Most annuities have strict rules about early withdrawal. If you need to access a large sum before your scheduled payments begin, you may face a surrender charge — a penalty that reduces how much you can withdraw. Surrender charges typically decrease over time; a contract might charge 7% if you withdraw in year one, 6% in year two, and so on. Some annuities allow you to withdraw a small percentage each year without penalty, often 10% of your balance.

This illiquidity is a major trade-off. You gain certainty about future income, but you lose flexibility. If an emergency arises or your financial situation changes, you cannot straightforward cash out your annuity without cost.

Annuity fees and how they reduce your returns

Annuities carry several types of costs. A mortality and expense fee (often called M&E) covers the insurance company's cost of guaranteeing your payments; this typically ranges from 0.5% to 1.5% per year of your account balance. Variable annuities also charge investment management fees for the mutual funds or other investments inside the annuity, which can range from 0.5% to 2% annually depending on the funds chosen.

If you add optional features — called riders — such as a may provide minimum income or long-term care coverage, those cost extra. A rider might add 0.5% to 1% or more to your annual fees. Over decades, these fees compound and significantly reduce the amount available for your payments.

Fixed annuities typically have lower fees than variable annuities because the insurance company bears the investment risk. However, fixed annuities often have higher surrender charges if you need to withdraw early. Always ask for the full fee schedule before buying; insurance companies are required to disclose these costs, though the documents can be dense.

Why someone might buy an annuity

People buy annuities primarily to convert a large sum of money into may provide income they cannot outlive. If you have $300,000 saved and worry that you will run out of money by age 95, an when ready annuity can promise you a specific monthly payment for life. This eliminates longevity risk — the risk of living longer than your savings last.

Annuities also appeal to people who dislike managing investments or who want to simplify their finances in retirement. Instead of holding a portfolio of stocks and bonds and deciding when to sell, you receive a check each month. The complexity shifts to the insurance company.

Some people use deferred annuities as a tax-deferred savings vehicle during their working years, similar to how a 401(k) or IRA works. The money grows without annual tax bills, and you pay taxes only when you receive payments in retirement.

However, annuities are not right for everyone. They are permanent decisions that lock in your money and payment terms. They work best for people with a long time horizon, a substantial lump sum to invest, and a desire for predictable income over flexibility.

Frequently Asked Questions

Can I change my mind after I buy an annuity?

Most annuities have a free-look period, typically 10 to 30 days, during which you can cancel and receive a full refund. After that window closes, you are locked in. Some contracts allow you to make changes to payment options or add riders, but you cannot straightforward exit without paying a surrender charge. Always read the contract terms before signing.

What happens to my annuity if the insurance company fails?

State insurance regulators oversee insurance companies, and each state has a guaranty fund that protects annuity holders if an insurer becomes insolvent. The level of protection varies by state but typically covers up to $250,000 per person per company. This is a real safeguard, though it is not as comprehensive as FDIC protection for bank deposits.

Do I pay taxes on annuity payments?

If you bought the annuity with pre-tax money (such as a rollover from a 401(k)), all your payments are taxable as ordinary income. If you bought it with after-tax money, only the earnings portion of each payment is taxed; the portion that represents your original contribution returns tax-free. Your insurance company will send you a 1099-R form each year showing how much is taxable.

Is an annuity the same as a pension?

Both provide regular payments for life, but a pension is funded and managed by an employer or union, while an annuity is a contract you buy from an insurance company. You do not pay for a pension; your employer does. With an annuity, you provide the money upfront. The payment structure and guarantees can be similar, but the source and ownership are different.

What if I need a large sum of money before my annuity payments start?

If you own a deferred annuity and face an emergency before payments begin, you can withdraw money, but you will likely pay a surrender charge. Some contracts allow penalty-free withdrawals up to a certain percentage per year. If you need access to your full balance, a deferred annuity is probably not the right choice for you.