5.90% state lottery tax
Montana Powerball Tax Calculator
Last updated:
Montana applies a 5.90% state lottery tax. Combined with the 24% federal withholding and the top-bracket federal adjustment, the effective tax on a large jackpot lands around 38–42%.
Note: 5.90% top rate
Montana after-tax take-home by jackpot tier
24% federal withholding + top-bracket adjustment + state tax. Cash lump sum estimated at 60% of advertised jackpot.
| Advertised | Cash take-home | Cash effective | Annuity take-home |
|---|---|---|---|
| $100M | $34.3M | 42.76% | $57.2M |
| $300M | $102.9M | 42.85% | $171.4M |
| $500M | $171.4M | 42.87% | $285.6M |
| $700M | $239.9M | 42.88% | $399.8M |
| $1B | $342.7M | 42.89% | $571.1M |
| $1.5B | $514.0M | 42.89% | $856.6M |
| $2B | $685.3M | 42.89% | $1.1B |
Montana vs neighboring states ($1B cash)
| State | Rate | Cash take-home |
|---|---|---|
| Montana (MT) | 5.9% | $342.7M |
| Idaho (ID) | 5.8% | $343.3M |
| Wyoming (WY) | 0% | $378.1M |
| North Dakota (ND) | 2.5% | $363.1M |