Powerball Payout Calculator Idaho
Idaho taxes lottery winnings at 5.3% on top of federal tax. Idaho's flat 5.3% income tax rate applies to lottery winnings. (as of Jan 2026)
Calculate your exact Idaho payout →Example: what a jackpot is worth in Idaho
After-tax estimates using 5.3% state tax, the 2026 federal brackets (24% withheld up front, 37% top rate), and a lump sum cash value of 47% of the advertised jackpot.
| Advertised jackpot | Lump sum net | Annuity net (30-yr total) | First annuity payment (net) |
|---|---|---|---|
| $100M | $27,163,043 | $59,021,282 | $912,511 |
| $500M | $135,639,043 | $289,821,282 | $4,386,382 |
| $1B | $271,234,043 | $578,321,282 | $8,728,721 |
How Idaho compares
Eleven jurisdictions take no state tax on lottery wins (including Texas, Florida, and California). Among states that do tax, rates run from 2.5% (North Dakota, Arizona) to 10.9% (New York). See the full 51-state comparison table or read lump sum vs annuity: which to take.
Idaho lottery tax FAQ
How much tax does Idaho take from lottery winnings?
Idaho's flat 5.3% income tax rate applies to lottery winnings.
What would I actually take home from a $500 million jackpot in Idaho?
Taking the lump sum (cash value about 47% of the jackpot), you would clear roughly $135,639,043 after federal and state taxes. Taking the 30-year annuity, the after-tax total is roughly $289,821,282, paid in 30 growing installments.
Is the federal tax the same in Idaho as everywhere else?
Yes. Federal treatment is identical nationwide: 24% is withheld on prizes over $5,000, and jackpot-size winnings reach the 37% top bracket (income above $640,600 for a single filer in 2026), so the remainder is due when you file.
Do I pay Idaho tax if I bought the ticket somewhere else?
State withholding follows the state of purchase. If you live in Idaho but bought the winning ticket in another state, that state withholds first — Idaho then taxes you as a resident with a credit for tax paid there (rules vary; confirm with a tax professional).