Which states tax lottery winnings as ordinary income versus a flat rate?

1. Federal baseline: winnings are ordinary income and subject to withholding

At the federal level the IRS treats lottery winnings as ordinary taxable income, with an initial withholding rule (24% on reportable winnings over thresholds) and potential additional tax at filing depending on total income and the top marginal rate (37% for top-bracket income in 2025), meaning the 24% withholding is often only a down‑payment on a larger bill ^{[1] [4] [2]}.

2. The majority of states follow ordinary income rules — practical reality, not a special “lottery tax”

Most states that tax income simply treat lottery proceeds the same way they treat wages or other ordinary income, folding prizes into the taxpayer’s annual taxable income and applying either progressive brackets or a state flat income rate as applicable; multiple tax guides and tax‑calculator sites describe state taxation of lottery winnings as being handled through ordinary income mechanisms rather than a unique treatment in most jurisdictions ^{[5] [6] [2]}.

3. States that impose a specific flat tax on gambling/lottery payouts — examples from the reporting

A smaller set of states apply a distinct flat rate or special statutory rule for gambling winnings; for example, Michigan is cited as using a flat 4.25% tax on gambling winnings (including lottery prizes) in the source material ^[7], and reporting notes that some states have enacted flat income tax regimes that affect lottery taxation (Arizona’s flat 2.5% individual income tax after recent changes is discussed as applying to gambling/lottery income) ^[3].

4. States that don’t tax lottery winnings at the state level — identified examples and caveats

Several states impose no state income tax and therefore do not tax lottery winnings — sources explicitly list states such as California, Florida, New Hampshire, South Dakota, Tennessee, Texas, Washington and Wyoming as having no withholding for lottery winnings and other summaries identify no‑income‑tax states as benefiting winners (though California does tax gambling as ordinary income — see caveat below) ^{[5] [2]}; this reporting emphasizes that “no withholding” is not always identical to “no tax liability” for nonresidents, and the coverage is uneven across sources ^{[5] [3]}.

5. Important nuances: nonresident rules, withholding vs. final tax, and evidence limits

Several sources warn that withholding practices differ from final tax liability — the federal 24% withholding is not the final tax and states may withhold for nonresidents in specific circumstances, and some states require withholding only for large prizes or for nonresidents who bought tickets in‑state ^{[5] [1] [8]}; the assembled reporting provides examples and mechanics but does not include a definitive, fully sourced 50‑state table in these excerpts, so a complete authoritative list of “which states tax as ordinary income vs which use a state flat lottery tax” cannot be produced from these sources alone ^{[5] [3]}.

6. Reading the sources and what remains to verify

The referenced guides and calculators are consistent about the federal treatment (ordinary income, withholding) and about wide state variance, and they furnish examples (Michigan’s 4.25% flat gambling tax, Arizona’s flat income rate, Iowa’s movement toward a flat rate) but appear to be secondary compilations and tax‑advice pages rather than primary statutory texts — a definitive state-by-state legal answer would require checking each state tax code or an authoritative 2025 Tax Foundation/Department of Revenue table not provided in the excerpts here ^{[1] [7] [3]}.