PBPowerballTax

4.95% state lottery tax

Illinois Powerball Tax Calculator (2026)

Last updated:

The Illinois comparison model uses a 4.95% headline state rate together with federal withholding and an estimated top-bracket adjustment. It is an educational estimate, not a completed Illinois return.

Note: 4.95% flat rate

Can Illinois residents buy Powerball in-state?

Illinois is treated here as a regular Powerball ticket-selling state. The calculator uses Illinois as the ticket-state input for estimating federal tax, state tax, and cash lump-sum take-home.

Powerball sold in-stateYes, modeled as a standard ticket-state scenario.
Modeled resident rate4.95%
Resident buys out of stateUsually starts with the ticket jurisdiction’s claim, withholding, and nonresident filing rules, then resident-state tax or credits must be checked.
Moving before claimingDo not assume moving avoids tax. Claim date, residency, ticket location, and state law can all affect the final filing position.

Illinois after-tax take-home by jackpot tier

24% federal withholding + top-bracket adjustment + state tax. Cash lump sum estimated at 60% of advertised jackpot.

AdvertisedCash take-homeCash effectiveAnnuity take-home
$100M$34.9M41.81%$60.5M
$300M$104.6M41.9%$176.6M
$500M$174.2M41.92%$292.7M
$700M$243.9M41.93%$408.8M
$1B$348.4M41.94%$583.0M
$1.5B$522.5M41.94%$873.2M
$2B$696.7M41.94%$1.2B

Illinois vs neighboring states ($1B cash)

StateRateCash take-home
Illinois (IL)4.95%$348.4M
Indiana (IN)3.15%$359.2M
Iowa (IA)3.8%$355.3M
Missouri (MO)4.8%$349.3M

Data Sources & Methodology

All tax calculations on PowerballTax.com are based on publicly available IRS publications and official Powerball rules for the 2026 tax year. Federal withholding uses the 24% rate mandated by IRC §3402(q); the top-bracket adjustment reflects the 37% marginal rate above the single-filer threshold of $640,600 (IRS Rev. Proc. 2025-11). State rates are sourced from individual state lottery commission disclosures and cross-verified against Tax Foundation data.

Last verified: June 2026Rates reflect IRS 2026 tax year schedules. State rates reviewed quarterly.

Disclaimer: Results produced by this calculator are estimates for educational purposes only and do not constitute professional tax, legal, or financial advice. Individual circumstances — including filing status, residency, deductions, and local taxes — may materially affect actual tax liability. Always consult a qualified CPA or tax attorney before making financial decisions based on lottery winnings.

Frequently asked questions

Does Illinois tax Powerball winnings?

Illinois taxes Powerball winnings at 4.95%. Note: 4.95% flat rate.

How much does a $100 million Powerball winner take home in Illinois?

On a $100 million advertised jackpot taken as cash (gross $60,000,000), a Illinois winner keeps approximately $34,913,278 after taxes — an effective rate of about 41.81%.

How much does a $500 million Powerball winner take home in Illinois?

On a $500 million advertised jackpot taken as cash (gross $300,000,000), a Illinois winner keeps approximately $174,233,278 after taxes — an effective rate of about 41.92%.

How much does a $1 billion Powerball winner take home in Illinois?

On a $1 billion advertised jackpot taken as cash (gross $600,000,000), a Illinois winner keeps approximately $348,383,278 after taxes — an effective rate of about 41.94%.

How do ticket location and residency affect a Illinois winner?

This estimator treats Illinois as the ticket-state input and applies its 4.95% headline rate. It does not determine resident-state credits, nonresident returns, reciprocity, or the effect of moving before a claim. Confirm those obligations with the relevant tax agencies or a qualified professional.