Lottery Tax Calculator

Quick answer

The lottery tax calculator estimates how much of a U.S. lottery jackpot you keep after federal and state taxes – for the lump sum and the 30-year annuity – including the 24% federal withholding and the extra tax due at the top 37% bracket.

$
%
%
Lump sum before tax
$ —
Federal withholding (24%)
$ —
Total federal tax on the lump sum
$ —
State tax on the lump sum
$ —
Lump sum after taxes
$ —
Extra federal tax due beyond withholding
$ —
First annuity payment before tax
$ —
First annuity payment after tax
$ —
Total annuity after tax (30 payments, approx.)
$ —

Lottery prizes over $5,000 have 24% federal tax withheld, but big prizes fall in the 37% bracket, so winners owe more at tax time. Some states – such as California, Florida and Texas – don’t tax lottery winnings; others charge up to about 11%.

How to use the Lottery Tax Calculator

  1. Advertised jackpot (annuity value)
  2. Lump sum (cash option) percentage
  3. Federal filing status
  4. State tax rate on lottery winnings

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

How it works

Enter the advertised jackpot, the cash option percentage, your filing status and your state’s tax rate on lottery winnings.

Tips

  • Tax figures here are estimates for planning – your actual tax depends on credits, deductions and local rules.
  • Check the tax year and filing status before you rely on a result.
  • Use gross (before-tax) figures unless a field asks for take-home pay.
  • When in doubt, confirm with the tax authority’s own calculator or a tax professional.

Common mistakes to avoid

  • Confusing marginal and effective tax rates.
  • Adding sales tax to a price that already includes it.
  • Forgetting payroll taxes (Social Security and Medicare) on wages.

Inputs explained

Field What to enter
Advertised jackpot (annuity value) Amount in your currency
Lump sum (cash option) percentage In %
Federal filing status Choose one: Single, Married filing jointly, Married filing separately, Head of household
State tax rate on lottery winnings In %

What each result means

  • Lump sum before tax = [Advertised jackpot (annuity value)]×[Lump sum (cash option) percentage]÷100
  • Federal withholding (24%) = [Lump sum before tax]×0.24
  • State tax on the lump sum = [Lump sum before tax]×[State tax rate on lottery winnings]÷100
  • Lump sum after taxes = [Lump sum before tax] – [Total federal tax on the lump sum] – [State tax on the lump sum]
  • Extra federal tax due beyond withholding = [Total federal tax on the lump sum] – [Federal withholding (24%)]
  • First annuity payment before tax = [Advertised jackpot (annuity value)]×0.05÷((1.05)^30 – 1)
  • Total annuity after tax (30 payments, approx.) = [Advertised jackpot (annuity value)]×(1 – 0.355 – [State tax rate on lottery winnings]÷100)

Example values

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

Advertised jackpot (annuity value) Lump sum after taxes
50,000,000 13,685,792.75
75,000,000 20,506,667.75
100,000,000 27,327,542.75
125,000,000 34,148,417.75
150,000,000 40,969,292.75
200,000,000 54,611,042.75

Formula

Lump sum = jackpot × cash option %Federal withholding = 24%; actual federal tax ≈ 2026 brackets on the prize (top rate 37%)State tax = prize × state rateAnnuity: 30 payments growing 5% a year (first ≈ jackpot × 1.5% )

Worked example

Inputs — Advertised jackpot (annuity value): $100,000,000; Lump sum (cash option) percentage: 47 %; Federal filing status: Single; State tax rate on lottery winnings: 4.95 %.
Results — Lump sum before tax = $47,000,000.00; Federal withholding (24%) = $11,280,000.00; Total federal tax on the lump sum = $17,345,957.25; State tax on the lump sum = $2,326,500.00; Lump sum after taxes = $27,327,542.75; Extra federal tax due beyond withholding = $6,065,957.25; First annuity payment before tax = $1,505,143.51; First annuity payment after tax = $917,778.56; Total annuity after tax (30 payments, approx.) = $59,550,000.00.

Frequently asked questions

How much tax do you pay on lottery winnings?

24% is withheld federally, but large prizes are taxed at up to 37%, plus state tax.

Lump sum or annuity?

The lump sum gives control now; the annuity pays more in total and spreads the tax.

Which states don't tax lottery winnings?

California, Delaware, Florida, New Hampshire, South Dakota, Tennessee, Texas, Washington and Wyoming, among others.

What formula does the Lottery Tax Calculator use?

Lump sum = jackpot × cash option %.

Sources

  1. IRS – Tax inflation adjustments for tax year 2026

Cite this calculator

Speedy Calculator. (2026). Lottery Tax Calculator. Speedy Calculator. https://speedycalculator.com/calculators/finance/lottery-tax/