4.40% state lottery tax

Colorado Powerball Tax Calculator

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Colorado applies a 4.40% 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: 4.40% flat income tax

Colorado 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$35.2M41.26%$58.7M
$300M$105.6M41.35%$175.9M
$500M$175.9M41.37%$293.1M
$700M$246.2M41.38%$410.3M
$1B$351.7M41.39%$586.1M
$1.5B$527.5M41.39%$879.1M
$2B$703.3M41.39%$1.2B

Colorado vs neighboring states ($1B cash)

StateRateCash take-home
Colorado (CO)4.4%$351.7M
New Mexico (NM)5.9%$342.7M
Utah (UT)4.65%$350.2M
Nebraska (NE)5.2%$346.9M

Frequently asked questions

Does Colorado tax Powerball winnings?

Colorado taxes Powerball winnings at 4.40%. Note: 4.40% flat income tax.

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

On a $1 billion advertised jackpot taken as cash (gross $600,000,000), a Colorado winner keeps approximately $351,683,278 after taxes — an effective rate of about 41.39%.

Can I avoid Colorado lottery tax by moving states before claiming?

No. State lottery tax is determined by the state where the ticket was sold, not the winner's residence. A ticket bought in Colorado is taxed at Colorado's 4.40% rate; the winner's home state may credit or assess additional tax at filing.