A Powerball jackpot bought in Montana is taxed at 5.65% at the state level, close to the middle of the pack. On today's $674,000,000 jackpot that is about $16,039,717 to Montana, leaving $162,860,227 from the $283,888,800 cash option.
Montana’s top income tax rate is 5.65%, and lottery prizes are ordinary income. Montana has no local income tax.
Calculate your take-home
Montana Powerball payout after tax
| Line | Lump sum | Annuity (30 payments) |
|---|---|---|
| Advertised jackpot | $674,000,000 | $674,000,000 |
| Amount paid out before tax | $283,888,800 | $674,000,000 |
| Federal tax (37% bracket) | −$104,988,856 | −$247,880,007 |
| Montana tax (5.65%) | −$16,039,717 | −$38,081,000 |
| You keep | $162,860,227 | $388,038,992 |
| Share of the advertised jackpot | 24.2% | 57.6% |
Built from today's live cash value ($283,900,000). Single filer, standard deduction, no other income.
How Montana taxes lottery winnings
Montana uses a graduated income tax, and lottery prizes are ordinary income — not capital gains, not a special category. Because a jackpot is far above the highest bracket threshold, the effective state rate on the prize is the top rate, 5.65%.
- Montana is one of two states where Powerball is bundled with Power Play, so every ticket costs at least $3.
- The state withholds 6.9% on large prizes, above the 5.65% final rate.
Three prizes, worked out for Montana
| Prize | Cash value | Federal | Montana | You keep |
|---|---|---|---|---|
| $1M | $421,200 | −$110,554 | −$23,798 | $286,848 |
| $10M | $4,212,000 | −$1,508,440 | −$237,978 | $2,465,582 |
| Current jackpot ($674M) | $283,888,800 | −$104,988,856 | −$16,039,717 | $162,860,227 |
Smaller prizes are worth checking against your own bracket: below roughly $640,600 of taxable income the federal rate is 35% or less, so the flat 37% used here overstates the bill on smaller wins.
If you live in Montana but buy elsewhere
Lottery income is generally taxed by the state where the ticket was purchased, and again by your state of residence, with a credit for tax paid to the first state. That credit is usually capped at the home state's own rate, so a higher-tax home state still collects the difference.
That matters in Montana because Wyoming is next door with no tax on a home-state ticket. Crossing the border to buy does not make the prize tax-free for a Montana resident — it just adds a second state to the paperwork.
Residency is decided by facts — where you spend the year, where you vote, where your home is — not by the address you write on the claim form. Moving after the win does not retroactively change the state that taxes the prize.
Compare Montana with its neighbours
| State | Rate on a jackpot | Take-home (lump sum) | Difference |
|---|---|---|---|
| Montana | 5.65% | $162,860,227 | — |
| Idaho | 5.3% | $163,853,837 | +$993,611 |
| Wyoming | 0% | $178,899,944 | +$16,039,717 |
| North Dakota | 2.5% | $171,802,724 | +$8,942,497 |
All 46 jurisdictions are listed in the state tax index and the full rate table.
Frequently asked
Does Montana tax Powerball winnings?
Yes. Montana treats a Powerball jackpot as ordinary income and taxes it at 5.65% at the top marginal rate. On the current $674M jackpot that is about $16,039,717 on a lump-sum claim.
How much would I keep from the current jackpot in Montana?
About $162,860,227 on the cash option ($283,888,800), or about $388,038,992 if you take the 30-payment annuity and stay in Montana for all of it. Both figures are before any local tax, professional fees or other income.
Do I pay Montana tax if I buy the ticket in another state?
Usually yes. Montana taxes residents on worldwide income, so a prize won in a no-tax state such as Wyoming is still Montana income. You would generally claim a credit for tax withheld by the state where you bought the ticket, but the credit rarely covers the full 5.65%.
Can I claim anonymously in Montana?
Anonymity rules are set by the state lottery, not the tax code, and they change. Some states let a trust or LLC claim in place of the individual; others publish the winner's name regardless. Check the Montana lottery claim rules before you sign the back of the ticket.