What is an annuity
An annuity is a contract between you and an insurance company. You give the company money now or over time. In return, the company promises to pay you money later, usually on a regular schedule. Those payments can last a fixed time or for the rest of your life.
People buy annuities to get steady income, often in retirement. The idea is to turn a lump sum into a reliable paycheck.
Main types of annuities
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Fixed annuity
You get a set payment or a guaranteed interest rate. Payments do not change. This is simple and low risk. -
Variable annuity
Payments vary based on investment performance. You choose funds. Returns can be higher or lower, and risk is higher. -
Indexed annuity
Returns are tied to a stock market index, like the S&P 500. You get some upside linked to the index and some protection against losses. There are caps and limits. -
Immediate annuity
You start receiving payments right away, often within a month or year after paying a lump sum. Good for turning retirement savings into income. -
Deferred annuity
Payments start at a future date. Your money grows tax-deferred while it waits. You can make contributions now and take income later.
How payments work
Annuity payments depend on:
- How much you pay in
- The interest rate or investment returns
- The payment schedule (monthly, quarterly, yearly)
- Whether payments are for a fixed period or for life
- Any fees and riders
Example: You buy an immediate fixed annuity with $100,000. The insurer promises $500 per month for life. The insurer set that payment based on life expectancy and interest rates.
Simple math: present value and payments
If you want to estimate payments from a fixed annuity, use the annuity formula for present value PV:
PV = PMT * [1 - (1 + r)^-n] / r
Where:
- PV is the lump sum you pay now
- PMT is the payment per period
- r is the interest rate per period
- n is the number of periods
Rearrange to solve for PMT:
PMT = PV * r / [1 - (1 + r)^-n]
This formula works for fixed, guaranteed payments over a known period. It does not apply directly to life annuities where payments end at death.
Taxes
Annuity tax rules depend on how you paid for it:
- Money from after-tax contributions is returned partly as tax-free principal and partly as taxable earnings.
- If you buy an annuity with pre-tax money inside a retirement account, most or all payments are taxable as ordinary income.
- Withdrawals or early surrender may trigger penalties.
Tax rules are complex. Check with a tax professional for your situation.
Fees and riders
Annuities often charge:
- Mortality and expense fees
- Administrative fees
- Investment management fees for variable annuities
- Surrender charges if you withdraw early
Riders add features like guaranteed income or long term care coverage. They cost extra. Read the fine print and compare total costs, not just the headline payout.
Pros and cons
Pros:
- Predictable income for retirees
- Tax deferral while money grows
- Option for lifetime payments that protect against outliving savings
Cons:
- Less liquidity. Surrender charges can be high.
- Fees can be steep, especially for variable annuities with riders.
- Complex contracts. Hard to compare offers.
- Inflation risk if payments are fixed and not indexed.
When an annuity makes sense
- You need steady income in retirement and want to reduce the risk of outliving your savings.
- You have money you do not need for emergencies and want guaranteed income.
- You are comfortable with insurance company credit risk.
When it may not make sense:
- You need flexible access to your money.
- You can earn higher returns with lower costs elsewhere.
- You do not understand the fees and terms.
Questions to ask before buying
- Is this annuity fixed, variable, or indexed?
- What fees and surrender charges apply?
- How does the company calculate payments?
- What happens to payments if the insurance company fails?
- Are payments adjusted for inflation?
- Can I get a refund or survivor benefit?
Final thought
An annuity is a tool. It can convert savings into predictable income. It is not the best choice for everyone. Understand the type, fees, tax treatment, and the insurer before you buy. If the contract is long or complex, get advice from a trusted financial advisor.
Meta: This page explains what an annuity is, types of annuities, how payments are calculated, tax rules, fees, pros and cons, and key questions to ask before buying.