Lottery Tax, Cash Value & Odds Methodology
2026 IRS brackets · official lottery and state sources
Overview
This page explains how every tax, cash-value and odds figure on AiLottoAnalyzer is calculated, and links the official source behind each state rule. The payout calculators, jackpot tax pages and this page all use the same code, so the numbers here are the numbers on the site. The full state dataset is available as a CSV file, free to reuse with attribution (CC BY 4.0).
Figures are estimates for education, not tax advice. Lottery draws are random; nothing on the site changes anyone's odds.
Cite this page
Source: AiLottoAnalyzer state lottery tax dataset (state rates verified October 2026; 2026 IRS brackets), https://www.ailottoanalyzer.com/methodology, accessed 2026-11-01.
2026 federal tax: 24% withheld, up to 37% owed
Federal tax on a jackpot is calculated in two steps. When a prize over $5,000 is claimed, the lottery withholds a flat 24%. The actual liability is set later by the 2026 income tax brackets (IRS Rev. Proc. 2025-32): almost all of a jackpot falls in the top 37% bracket, so most winners owe the difference when they file. The calculators treat the prize as the winner's only income for the year and apply the standard deduction; the site's figures use the single-filer table.
Example: federal tax on a $500M lump sum.
State tax is applied as a flat rate on the prize (the top marginal rate, including millionaire surtaxes where they apply). Each annuity payment is taxed in the year it is paid, using today's brackets.
30-year annuity and the Treasury-linked cash value
Powerball and Mega Millions advertise the annuity: 30 payments, one now and then one a year for 29 years, each 5% larger than the last. The first payment is the jackpot divided by the sum of the growth factors, 1.050 + 1.051 + … + 1.0529 = 66.4388.
The cash option is what the lottery would need today to buy the bonds that fund those payments: each payment is discounted at the 30-year U.S. Treasury constant-maturity yield (FRED series DGS30) plus a small calibrated adjustment. Cash ratio = Σ (1.05k ÷ 66.4388) ÷ (1 + r)k for k = 0 … 29. When a lottery publishes its official cash value, the site uses that figure instead.
30-year yield
5.31%
October 30, 2026
Cash option today
42.2%
of the advertised jackpot
Backtest median error
0.92%
of the official cash value
Backtest: the model was checked against 47 official Mega Millions jackpots from January 1, 2019 to July 28, 2026, re-calibrating the adjustment from each previous official figure as the site does. Across the 46 predicted values the median error was 0.92% of the official cash value (0.51 percentage points of the jackpot), the mean 1.03% and the worst 3.04%.
2026 US State Lottery Tax, Anonymity & Claim Rules Dataset (52 jurisdictions)
Top lottery tax rate, game availability, winner-privacy rule, claim deadline and official sources for all 50 states, the District of Columbia and Puerto Rico, verified in October 2026 against state lottery websites, revenue departments and statutes. Where a rule could not be confirmed from an official source it is marked “Not yet verified” rather than guessed.
Showing 52 of 52. Benchmark: $1B advertised jackpot, 50% cash option ($500M), single filer, 2026 federal brackets plus the state rate. Annuity: total of 30 after-tax payments. States without a lottery are included because residents who win elsewhere are taxed at home.
Exact odds and statistical independence
Jackpot odds are exact counts of every possible ticket: the number of ways to choose the main numbers multiplied by the ways to choose the special ball(s).
Quick Pick's pool counter counts exactly how many tickets satisfy the active filters (odd/even, sum range, zones, decades, consecutive numbers and more) by enumerating every combination, then multiplies by the valid special-ball choices. Filters change which tickets you see, not the chance of any ticket: every combination is equally likely.
Every drawing is an independent random event. Historical frequencies, “hot” and “cold” numbers and the AiLA engine describe past results only; they do not change the odds of any future draw.
Corrections and reuse
Rules change: state rates are re-verified at least once a year and whenever a state changes its law. To report an error, use the contact page and include the official source. Reuse of the dataset is welcome under CC BY 4.0 with a link to https://www.ailottoanalyzer.com/methodology.
