How we calculate lottery taxes
Federal tax
We apply the top federal rate of 37% (2026) to the whole prize. For a jackpot this is very close to the real figure, because almost the whole prize falls in the top bracket (above $640,600 for single filers and $768,700 for married couples filing jointly in 2026). For smaller prizes it overstates the tax, so real take-home is usually a little higher than we show, never lower.
We show federal tax in two parts: 24% withheld when you claim a prize over $5,000, and the rest, owed when you file.
State and city tax
We apply the top state rate for the state where you live. A state rate is used only after we have checked it against the state's department of revenue. Until then the calculator labels the state "being verified" and shows federal tax only. For New York City residents we add the top city rate of 3.876%.
Cash value
When the lottery's official cash value for the next draw is available, we use it. Otherwise we estimate it at about 43% of the advertised jackpot, and label the figure as estimated.
Annuity
The annuity is modeled as 30 payments (one now and 29 yearly), each 5% larger than the last, matching the Powerball and Mega Millions annuity structure. We apply today's tax rates to every payment.
Results
Winning numbers come from New York State's open data portal (data.ny.gov), which publishes Powerball and Mega Millions results. Numbers usually appear a few hours after each draw. Jackpot amounts are entered from official lottery announcements. Always confirm numbers with your official state lottery.
What we leave out
We do not model deductions, credits, other income, the alternative minimum tax, local taxes outside New York City, or nonresident taxes in the state that sold your ticket. These can change your real bill, so talk to a tax professional before claiming a large prize.
Sources
- IRS Topic 419: Gambling income and losses
- IRS Instructions for Forms W-2G and 5754
- New York State Department of Taxation and Finance
- data.ny.gov
Spotted a mistake? Email contact@lotterytaxhub.com.