Mega Millions Payout Calculator

Quick answer

The Mega Millions payout calculator compares taking a Mega Millions jackpot as a lump sum (the cash option) or as an annuity of 30 graduated payments rising 5% a year, after federal and state income tax.

$
%
%
$
Cash option (before tax)
$ 230,000,000.00
Federal tax on the cash option
$ 85,070,245.25
Cash option after taxes
$ 144,929,754.75
Federal withholding at payout (24%)
$ 55,200,000.00
First annuity payment (before tax)
$ 7,525,717.54
Last (30th) annuity payment
$ 30,976,873.85
Total annuity after taxes (approx.)
$ 315,892,642.50
Cash option after tax as a share of the annuity after tax
45.88 %

The advertised Mega Millions jackpot is the total of the annuity. The cash option is what the lottery has in the jackpot fund, typically around 45–50% of the headline figure. Lottery winnings are taxed as ordinary income: 24% is withheld, but a big jackpot falls almost entirely in the 37% bracket. Some states (e.g. California, Florida, Texas) don’t tax lottery winnings. Since April 2025 Mega Millions tickets cost $5 and the annuity is still 30 graduated payments.

How to use the Mega Millions Payout Calculator

  1. Advertised jackpot
  2. Cash option as a share of the jackpot
  3. Filing status
  4. State tax on lottery winnings
  5. Your other taxable income per year

Results update as you type, and every field accepts the units shown in its menu.

How it works

Enter the advertised jackpot, the cash value percentage, your filing status, state tax rate and other taxable income.

Inputs explained

Field What to enter
Advertised jackpot Amount in your currency
Cash option as a share of the jackpot In %
Filing status Choose one: Single, Married filing jointly, Married filing separately, Head of household
State tax on lottery winnings In %
Your other taxable income per year Amount in your currency

What each result means

  • Cash option (before tax) = [Advertised jackpot]×[Cash option as a share of the jackpot]÷100
  • Cash option after taxes = [Cash option (before tax)] – [Federal tax on the cash option] – [Cash option (before tax)]×[State tax on lottery winnings]÷100
  • Federal withholding at payout (24%) = [Cash option (before tax)]×0.24
  • First annuity payment (before tax) = [Advertised jackpot]×0.05÷(1.05^30 – 1)
  • Last (30th) annuity payment = [First annuity payment (before tax)]×1.05^29
  • Cash option after tax as a share of the annuity after tax = [Cash option after taxes]÷[Total annuity after taxes (approx.)]×100

Example values

How the main result changes when Advertised jackpot changes and everything else stays at the example values above:

Advertised jackpot Cash option after taxes
250,000,000 72,479,754.75
375,000,000 108,704,754.75
500,000,000 144,929,754.75
625,000,000 181,154,754.75
750,000,000 217,379,754.75
1,000,000,000 289,829,754.75

Formula

Cash option ≈ jackpot × cash value share First annuity payment = jackpot × 0.05 ÷ (1.05³⁰ − 1), each later payment 5% higher Federal tax: 24% withheld, up to 37% owed at filing (2026 brackets) Net = gross − federal tax − state tax

Worked example

Inputs: Advertised jackpot: $500,000,000; Cash option as a share of the jackpot: 46 %; Filing status: Single; State tax on lottery winnings: 0 %; Your other taxable income per year: $60,000.
Results: Cash option (before tax) = $230,000,000.00; Federal tax on the cash option = $85,070,245.25; Cash option after taxes = $144,929,754.75; Federal withholding at payout (24%) = $55,200,000.00; First annuity payment (before tax) = $7,525,717.54; Last (30th) annuity payment = $30,976,873.85; Total annuity after taxes (approx.) = $315,892,642.50; Cash option after tax as a share of the annuity after tax = 45.88 %.

Frequently asked questions

Should I take the lump sum or the annuity?

The lump sum gives control and investment growth; the annuity protects against overspending and spreads tax.

How much tax will I pay on a jackpot?

Federal tax up to 37%, plus state tax where it applies.

Can I stay anonymous?

Only in some states.

Sources

  1. Mega Millions: Official site

Cite this calculator

Speedy Calculator. (2026). Mega Millions Payout Calculator. Speedy Calculator. https://speedycalculator.com/calculators/finance/mega-millions-payout/