Lottery Payout Calculator: Lump Sum vs Annuity (Powerball/Mega Millions)

Estimate your after-tax take-home for a Powerball or Mega Millions jackpot. Compare the lump sum (cash value) against the annuity option, including the 24% federal withholding, your marginal tax rate, and state tax.

Lump sum vs. annuity for a lottery jackpot

When you win a large U.S. multi-state lottery jackpot like Powerball or Mega Millions, you choose between two payout options: the "annuity," which pays out the full advertised jackpot as one immediate payment followed by 29 annual payments that each grow 5% over the last (30 payments total), and the "cash value" (lump sum), a single immediate payment that is typically around 45–55% of the advertised jackpot.

Either way, your winnings are subject to U.S. federal income tax — gambling winnings over $5,000 face a mandatory 24% withholding, and if your actual marginal rate is higher, you owe the difference when you file — plus state tax if you live somewhere that taxes lottery winnings. This tool lets you enter the advertised jackpot and cash value and compares the after-tax take-home for both options.

Sources used in this calculation

Statutory figures such as tax and insurance rates come from the public bodies listed below. They change when the law is revised, so please also check the primary source before relying on the result for an important decision.

US federal income tax brackets and standard deduction — Internal Revenue Service (IRS) Effective 2026-01 to 2026-12 ／ Last checked 2026-09-04
US flat 24% withholding rate on gambling and lottery winnings — Internal Revenue Service (IRS) Effective from 2018-01 ／ Last checked 2026-09-18

How to use it

Enter the advertised jackpot (annuity face value) Use the official "Estimated Jackpot" figure for your drawing.
Enter the cash value Use the official "Cash Value" figure, which is what you'd receive as a lump sum.
Select your expected federal marginal tax rate Pick the bracket that applies to your total taxable income for the year.
Choose whether state tax applies If your state taxes lottery winnings, enter its rate.
Compare the take-home amounts See the after-tax breakdown for both the lump sum and the annuity.

Tips for getting more out of it

Always enter the official jackpot and cash value published by Powerball.com or MegaMillions.com for your specific drawing. The cash value is often around 45–55% of the jackpot, but the exact ratio moves with interest rates and can't be derived from a fixed formula.
Your expected marginal tax rate depends on your total taxable income for the year, not just the winnings. For jackpots of this size, the top 37% federal bracket almost always applies.
State tax on lottery winnings ranges from 0% to over 10% depending on where you live. States like California, Florida, and Texas charge no state tax on lottery winnings, while New York tops out around 10.9% — one of the highest in the country.
If you choose the annuity, the 30th and final payment is roughly 4 times the first payment, since each payment grows 5% over the previous year. Remember that inflation will erode the real value of later payments.
This calculator uses a simplified model: the mandatory 24% federal withholding plus the gap to your marginal rate, paid at filing time. It doesn't account for itemized deductions or other credits, so treat the result as an estimate.

When to use this

Estimating your take-home before claiming a Powerball or Mega Millions prize

Plug in the officially announced jackpot and cash value to get a realistic sense of what you'd actually receive.

Deciding between the lump sum and the annuity

Compare the after-tax totals to build your own estimate before talking to a financial advisor.

Checking how much your state of residence matters

Toggle the state tax rate to see how the same jackpot nets differently depending on where you live.

Reviewing the annuity payment schedule

See the gross and net amount for each of the 30 annual payments at a glance.

Glossary

Annuity: A payout option that pays the full advertised jackpot as one immediate payment plus 29 annual payments, each 5% larger than the last (30 payments total).
Cash value: The lump-sum payout option, typically around 45–55% of the advertised jackpot. It varies with prevailing interest rates at the time of the drawing.
Regular gambling withholding: The mandatory 24% federal withholding the IRS requires when gambling winnings (proceeds minus the wager) exceed $5,000.
Marginal tax rate: The tax rate applied to the last dollar of your taxable income. The 2026 U.S. federal brackets range from 10% to 37%.
W-2G: The tax form gambling winnings payers file with the IRS and issue to the winner, reporting the winnings and any withholding.
Multi-State Lottery Association (MUSL): The organization that runs Powerball and sets the annuity payment schedule (30 payments, 5% annual growth).

Frequently asked questions

No, this tool doesn't estimate it automatically. The cash value changes every drawing based on prevailing interest rates (roughly the yield on long-term U.S. Treasury bonds), so you should always use the official cash value published by Powerball.com or MegaMillions.com for your specific drawing.

The 24% is just the amount withheld at the time of payment. Your actual tax bill is based on your marginal rate for the year, which for large jackpots is almost always the top 37% federal bracket. You owe the difference between what was withheld and your actual tax liability when you file your return.

California, Florida, Texas, Washington, Tennessee, South Dakota, New Hampshire, Alaska, Wyoming, Delaware, and Nevada don't tax lottery winnings at the state level (California has a state income tax but specifically exempts California Lottery winnings). New York is at the other extreme, with a top rate around 10.9% plus an additional city tax if you live in New York City.

Comparing after-tax totals at face value, the annuity usually nets a larger total. But that comparison doesn't discount future payments to present value — many winners choose the lump sum so they can invest it immediately or avoid inflation eroding the value of later payments. Talk to a financial advisor and tax professional before deciding.

No. This is a simplified estimate covering the mandatory federal withholding, the gap to your marginal rate, and a flat state tax rate. It doesn't account for itemized deductions, other tax credits, or the alternative minimum tax, so consult a tax professional for your actual liability.

Side Note — Why does the annuity grow by exactly 5% a year?

Powerball and Mega Millions structure their annuity payments to grow 5% each year mainly to soften the effect of inflation on the real value of later payments. By starting with the smallest payment in year one and increasing it every year through the 30th and final payment, the schedule keeps the nominal total equal to the advertised jackpot while giving winners a payment stream that at least partially keeps pace with rising prices.

This structure is closely tied to how the Multi-State Lottery Association (MUSL) funds the annuity: it purchases long-term U.S. Treasury securities (roughly matching the 29-year payout period) and uses the yield to cover each year's payment. Because the advertised jackpot itself is calculated from that bond yield, rising interest rates tend to push announced jackpots higher.

The cash value being significantly smaller than the advertised jackpot comes from the same math. The lump sum represents the present value of the 29 years of future payments you'd otherwise receive, discounted back to today — so the higher interest rates are at the time of the drawing, the larger that discount, and the smaller the cash value looks relative to the headline jackpot.

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