What the Jackpot Tax Calculator Does
Winning a big lottery jackpot sounds life-changing — and it is — but taxes take a significant cut before you see a dollar. The Jackpot Tax Calculator shows you exactly how much you'd take home after federal and state taxes. It works for all four states on the site: California, New York, Texas, and Florida.
Entering a Jackpot Amount
You can type any dollar amount into the jackpot field to run a hypothetical scenario. If you want to calculate using real numbers, click one of the current jackpot buttons displayed below the input. These pull the latest advertised jackpot amounts directly from drawing data for lotto-style games like Mega Millions, Powerball, and SuperLotto Plus. The auto-fill saves you from having to look up current jackpots separately.
Lump Sum vs. Annuity
Every major jackpot offers two payout options. The lump sum (cash value) pays out roughly 60% of the advertised amount as an immediate one-time payment. The annuity spreads the full amount over 30 annual payments. The calculator models both so you can compare the tax impact of each. In most cases, the lump sum results in a higher effective tax rate because the entire amount is taxed in one year, pushing more income into the top federal bracket. For a deeper comparison, read our Annuity vs. Lump Sum breakdown.
Filing Status
Toggle between single and married filing jointly. Married filers benefit from wider tax brackets at every level, which means the same jackpot produces a slightly lower effective federal tax rate. The difference is modest on very large jackpots (since both filing statuses hit the top 37% bracket quickly) but more noticeable on smaller wins.
State Tax Differences
State taxes vary dramatically across the four covered states. Texas and Florida have no state income tax, so lottery winnings are taxed at the federal level only. New York applies a 10.9% state tax, and if you live in New York City, an additional 3.876% city tax applies — toggle this option on to include it. California's top marginal rate is 13.3%, but California notably does not tax lottery winnings at the state level. The calculator applies the correct rate automatically based on your selected state. For a full explanation of how lottery taxes work, see our Lottery Taxes Explained guide.
Reading the Results
The stacked bar chart gives you a visual breakdown of where the money goes: federal taxes, state taxes (and city taxes if applicable), and your net take-home amount. Each segment is labeled with its dollar value. Below the chart, a summary card shows the total tax amount, the effective tax rate (total taxes as a percentage of the payout), and your estimated take-home figure. This makes it easy to compare scenarios quickly — change the jackpot amount, switch between lump sum and annuity, or try a different filing status and see the chart update instantly.
Important Notes
The calculator uses 2025 federal tax brackets and top marginal state rates. It does not account for deductions, credits, or other income you may have. Actual tax liability depends on your full financial picture, so treat these numbers as estimates rather than exact figures. For serious planning, consult a tax professional.