Lottery Tax Calculator

Defaults: prize $1,000,000, federal tax 24 percent, state tax 8 percent. Enter the gross prize as the operator reports it before withholding. Federal Tax is the federal rate you want to illustrate — 24 percent is US backup withholding on gambling winnings, not necessarily the top ordinary rate of 37 percent. State Tax is your state (or provincial analogue); use 0 if your jurisdiction does not tax lottery prizes.

Calculate. Combined Rate = federal + state = 32 percent. Total Tax = prize × 0.32 = $320,000. Net Payout = prize × (1 − 0.32) = $680,000. The tool adds the two rates; it does not deduct state tax from federal taxable income, and it does not apply brackets, the standard deduction, NIIT, or credits. It is a flat combined-rate haircut.

If you expect to true-up at 37 percent federal plus 8 percent state, enter 37 and 8 to see $450,000 tax and $550,000 net on a $1 million prize. If you are modelling UK National Lottery, enter 0 and 0: the winner’s prize is paid without income tax (the operator’s lottery duty is upstream). Canada similarly does not include lottery prizes in income; enter zeros. Some US states (for example a subset of no-income-tax states) still have 0 percent state lottery tax; others withhold at a published percentage that may differ from your eventual return.

The $1 million default is large enough that US operators will withhold federal tax, but small enough that you can still imagine a single-year bracket effect. For a $100 million jackpot share, change Prize and raise Federal toward your expected marginal rate plus any additional Medicare-related or state quirks your accountant flags. This page will not replace that accountant.

Do not enter the advertised 30-year annuity face as Prize if you took cash; enter the cash option. Do not enter the after-withholding direct-deposit amount as Prize and then tax it again. Gross in, rates in, net out. Pair with the annuity-versus-cash calculator when the headline is an annuity, and with the prize-split calculator when co-winners already divided the pot before tax.

Lottery tax treatment is a jurisdictional lottery of its own. In the United States, prizes are ordinary income. Payers generally withhold 24 percent federal tax on reportable gambling winnings above a threshold, which is why 24 percent is the default — it is the number on the W-2G, not the number on a well-advised Form 1040 for a seven-figure prize. State withholding, if any, stacks on top. The winner then files a return: additional federal tax may be due if 24 percent under-withheld relative to the marginal bracket, or a refund if deductions and other income tell a different story.

The United Kingdom’s National Lottery prizes are not subject to income tax or capital gains tax for the winner; Camelot (and successors) remits lottery duty as an operator-level tax. Several EU states tax prizes at source or exempt them; you must read the local rules rather than importing US withholding. Canada treats lottery winnings as windfalls excluded from income. Australia generally does not tax lottery prizes as income for ordinary ticket holders. This calculator’s two-rate US-shaped form is therefore an illustration for US-style combined rates, not a world model.

Why educational-only is not a disclaimer for show: filing status, other income, charitable gifts of the prize, resident-versus-nonresident state issues, city taxes, and whether you can deduct gambling losses (US: losses deductible only to the extent of winnings, itemized, with limitations) all move the net. A flat 24+8 can overstate or understate the cheque by six figures on a $1 million prize. SorteCalc does not know your return.

Historical note: governments tax lotteries twice — once as a take-out from the prize fund (the operator keep, earmarks for education, etc.) and again as income tax on the winner in countries that do so. Clotfelter and Cook emphasised the first tax: it is implicit in the odds. The second tax is explicit and highly salient after a win, which is why winners are shocked that a “million-dollar prize” is not a million dollars. This tool is for that second tax.

Use the output as a planning floor. If net is $680,000 on $1 million at 32 percent, do not spend $680,000 the week you win; set aside a further buffer for the true-up, professional fees, and the cousin who suddenly remembers your birthday. Then read your jurisdiction’s actual statute. Pair with jackpot EV if you are still in the buying-tickets phase: tax makes a barely +EV cash jackpot negative again.

Lottery prizes in the United States are ordinary income. Payers generally withhold 24 percent federal tax on reportable gambling winnings above a threshold, which is why 24 percent is the teaching default: it is the number on a W-2G, not the number on a well-advised return for a seven-figure prize. State withholding, if any, stacks on top. The winner then files; additional federal tax may be due if 24 percent under-withheld relative to the marginal bracket, or a refund if other facts tell a different story.

The default prize is 1,000,000 dollars, federal 24 percent, state 8 percent. Combined rate is the stacked identity federal plus state, here 32 percent. Total tax is prize times 0.32, which is 320,000 dollars. Net payout is prize times (1 minus 0.32), which is 680,000 dollars. There is no interaction term: the worksheet does not compute federal tax on prize minus state tax, and it does not apply brackets, the standard deduction, credits, or the state-and-local cap. It is a flat combined-rate haircut.

Withholding versus true liability is the caveat that belongs on the blackboard. Backup withholding at 24 percent is not the ordinary-income schedule, which is progressive up to 37 percent plus any applicable extras. If true federal liability is 37 percent and state is 8 percent, net on a million is 550,000 dollars, and the 240,000 withheld federally leaves another 210,000 due at filing before residual state. The page produces one-line combined-rate net; it does not produce a quarterly-estimate calendar.

Cross-border contrast keeps the identity honest. United Kingdom National Lottery prizes are not income-taxed to the winner; the operator remits lottery duty upstream, so both rates should be zero and net equals gross. Canada treats lottery prizes as windfalls excluded from income. Some United States states have no income tax on prizes; others withhold at a published percentage that may differ from the eventual return. A special 20 percent final withholding in another jurisdiction is modelled by putting 20 in the federal field and 0 in the state field, not by inventing a United States 24.

Sensitivity is linear in the combined rate. Each additional percentage point costs 10,000 dollars on a million-dollar prize and 1,000,000 dollars on a hundred-million-dollar prize. That map is why a 24 percent default and a 37 percent realistic top rate are not close enough to ignore. The model assumes the entire prize is recognised in one period. An annuity paid over 30 years would apply rates to each instalment; convert advertised-versus-cash first if the prize is not a lump.

Assumptions: gross in, two flat rates in, net out. Do not enter the advertised thirty-year face if you took cash. Do not enter an already-withheld deposit and tax it again. Educational identity only: no charitable percentage limits, no estate tax on a later death, no community-property split. Those belong in a tax-prep file. Pair the output with a prize-split worksheet when co-winners already divided the pot.