3.80% state lottery tax
Iowa Powerball Tax Calculator (2026)
Last updated:
The Iowa comparison model uses a 3.80% headline state rate. That is lower than many participating jurisdictions, but actual liability can differ because this page does not calculate resident-state credits, nonresident returns, deductions, or local tax.
Note: 3.80% flat rate as of 2025
Can Iowa residents buy Powerball in-state?
Iowa is treated here as a regular Powerball ticket-selling state. The calculator uses Iowa as the ticket-state input for estimating federal tax, state tax, and cash lump-sum take-home.
| Powerball sold in-state | Yes, modeled as a standard ticket-state scenario. |
|---|---|
| Modeled resident rate | 3.8% |
| Resident buys out of state | Usually starts with the ticket jurisdiction’s claim, withholding, and nonresident filing rules, then resident-state tax or credits must be checked. |
| Moving before claiming | Do not assume moving avoids tax. Claim date, residency, ticket location, and state law can all affect the final filing position. |
Iowa 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 | $35.6M | 40.66% | $61.7M |
| $300M | $106.6M | 40.75% | $180.1M |
| $500M | $177.7M | 40.77% | $298.5M |
| $700M | $248.7M | 40.78% | $416.9M |
| $1B | $355.3M | 40.79% | $594.5M |
| $1.5B | $532.9M | 40.79% | $890.5M |
| $2B | $710.5M | 40.79% | $1.2B |
Iowa vs neighboring states ($1B cash)
| State | Rate | Cash take-home |
|---|---|---|
| Iowa (IA) | 3.8% | $355.3M |
| Illinois (IL) | 4.95% | $348.4M |
| Minnesota (MN) | 9.85% | $319.0M |
| Missouri (MO) | 4.8% | $349.3M |