About the Annuity Calculator
Annuity Calculator helps estimate the key numbers involved in retirement decisions. It is designed for quick scenario comparison: enter a realistic set of values, calculate the result, then change one assumption at a time to see what has the greatest effect. Unlike a static table, the result responds to your inputs and keeps the calculation in your browser. Amounts are displayed in U.S. dollars for consistency, but the mathematical formulas can be used with another currency when every monetary input uses that same currency.
How to use this calculator
Enter values that match your situation and select Calculate result. Review the main result and its supporting figures, then change one input at a time to compare scenarios. Results are rounded for readability while the calculation retains additional precision internally.
Information you will need
- Starting amount
- Monthly contribution
- Annual return
- Years
How the calculation works
Projects growth with monthly compounding and contributions. Read the primary result together with the supporting values rather than focusing on one number alone. A useful estimate should make its assumptions visible. If the answer looks surprising, verify the unit, rate, time period, and whether the entered value is gross or net. Run a conservative and an optimistic scenario to understand the range of possible outcomes.
Formula or method
FV = P(1+r)n + C((1+r)n - 1)/r.
Worked example
$10,000 + $250/month at 7% for 10 years.
The example is illustrative rather than a recommendation. Use your own verified values and keep all monetary or measurement units consistent. When comparing alternatives, save or note each result so the assumptions do not become mixed.
How to interpret the result
The primary output answers the main question posed by the annuity calculator, while the additional cards provide context. A result with many decimal places is not necessarily more certain. The displayed precision makes comparison easier, but uncertainty in the inputs can be larger than the rounding difference.
Compare the result with a second scenario using a less favorable rate, return, cost, or time period. This sensitivity check often provides more useful planning information than one best-case projection.
Limitations and important notes
The annuity calculator is a planning tool, not a quote, filing calculation, lending decision, or promise of future performance. It does not automatically retrieve live market rates or apply every fee, tax bracket, program rule, product limit, or state law. Rules for products such as FHA, VA, Social Security, retirement accounts, and taxes can change. Confirm time-sensitive values with the lender, plan administrator, IRS, SSA, or another relevant authority before acting.
Frequently asked questions
What is an annuity?
An annuity is an insurance product that converts a lump sum or series of payments into a guaranteed income stream, typically for life. You pay the insurance company a premium, and in return it promises regular payments that can start immediately or at a future date. Annuities come in fixed, variable, and indexed forms, and some include income riders that guarantee a minimum payout. They are often used to cover essential expenses in retirement, but they come with fees, surrender charges, and reduced liquidity that vary by product.
Fixed vs variable annuity: which is right for me?
A fixed annuity pays a guaranteed rate of return and predictable income, making it a low-risk option for conservative investors. A variable annuity invests in subaccounts tied to the stock market, so payments can grow but also fall with investment performance. Indexed annuities fall in between, crediting returns linked to a market index with a floor. Fixed annuities suit people who want guaranteed income and no market exposure, while variable annuities fit those seeking growth and willing to accept risk. Compare fees, riders, and surrender terms carefully.
What are the fees on annuities?
Annuity fees can be substantial and include mortality and expense charges, administrative fees, investment management fees, and optional rider costs, which together can total 1 to 3 percent per year. Variable annuities also charge subaccount expenses, and surrendering within the first several years can trigger surrender charges of up to 8 to 10 percent that decline over time. Some indexed annuities cap returns or participation rates instead of charging explicit fees. These costs reduce your returns, so always read the fee disclosure and compare the annuity to low-cost alternatives like index funds.
Are annuities a good investment?
Annuities can be a good fit for turning a lump sum into guaranteed lifetime income, especially for covering fixed expenses such as housing and food. However, they are not always the best investment because of high fees, limited liquidity, and modest long-run returns compared with a diversified stock portfolio. A common strategy is to use a portion of savings to buy a fixed income annuity for guaranteed cash flow while keeping the rest invested. Consider an annuity only after funding tax-advantaged accounts and comparing fees.
How are annuities taxed?
Annuities grow tax-deferred, meaning you pay no taxes on earnings until you withdraw them, and withdrawals are taxed as ordinary income. Payments from a non-qualified annuity are split into a tax-free return of your cost basis and taxable earnings under the exclusion ratio. Withdrawing money before age 59 1/2 generally triggers a 10 percent IRS penalty on top of income tax. Buying an annuity inside an IRA offers no additional tax benefit because IRAs are already tax-deferred, so most advisors recommend keeping annuities outside retirement accounts.
What happens to an annuity when I die?
What happens at death depends on the payout option you chose. With a life-only option, payments stop when you die, leaving nothing to heirs. Joint-and-survivor options continue payments to a surviving spouse, usually at 50 to 100 percent of the original amount. Period-certain and cash-refund options guarantee either payments for a set number of years or a refund of the unused premium to beneficiaries. Variable and deferred annuities typically pass a death benefit to beneficiaries, but it may be subject to income tax.
What is an annuity income rider?
An income rider is an optional feature, typically on a deferred annuity, that guarantees a minimum withdrawal amount for life regardless of how the underlying investments perform. A common example is a guaranteed lifetime withdrawal benefit, or GLWB, which bases withdrawals on a benefit base that may grow at a guaranteed rate, rather than your actual account value. Riders add annual fees of roughly 0.5 to 1.25 percent and have complex rules about when income can start and how much you can withdraw, so read the contract terms closely.