Lottery Taxes: Why 24% Withholding Can Leave a 37%-Sized Bill

A jackpot winner can receive a check for nearly $200 million—and still need to set aside another $34 million for federal taxes. The reason is a distinction that matters far beyond lottery winnings: the tax taken out before you get paid is not necessarily the tax you owe.

Here’s how 24% withholding and the 37% top federal tax bracket fit together, using a $262.8 million cash prize as a worked example.

Withholding Is a Down Payment, Not a Final Price

Withholding is money taken from a payment and sent to the government on your behalf. For a large lottery prize, federal withholding is generally 24%.

That money counts toward your eventual income tax bill. It does not settle the bill.

Withholding answers “How much has already been paid?” Your tax return answers “How much was actually owed?”

Think of withholding as a deposit. When you file your return, you calculate your total tax and subtract what you have already paid through withholding and any other tax payments.

• If you paid too much, you generally receive a refund.
• If you paid too little, you owe the remaining balance.

The lottery reports the winnings and federal tax withheld on Form W-2G, the tax form used to report certain gambling winnings. You use that information when preparing your return. The IRS instructions for Form W-2G explain the reporting and withholding rules.

A Worked Example: A $262.8 Million Cash Prize

Suppose you receive a $262.8 million cash-option prize in 2026. That is the amount paid before taxes—not the advertised value of a jackpot paid over many years.

For this example, assume you:

• File as single.
• Have no other income.
• Take the $16,100 standard deduction for 2026.
• Have no other deductions or tax credits.
• Are calculating federal income tax only, excluding state and local taxes.

The standard deduction is a fixed amount you can subtract from income before calculating federal income tax. A tax credit, by contrast, directly reduces the tax you owe.

Step 1: The Lottery Withholds 24%

The initial withholding is:

So the payment you receive after federal withholding is:

Your account now holds nearly $199.7 million. But that is your after-withholding payment, not your final after-tax fortune.

Step 2: Calculate the Actual Federal Tax

Your taxable income—the income on which the tax brackets operate—is the prize minus the standard deduction:

Applying the 2026 federal income tax brackets produces a total federal income tax bill of approximately $97,186,000.

The withholding already paid covers part of that bill. The remaining balance is:

Here is the full picture:

These figures use the IRS’s 2026 tax brackets and standard deduction. Different filing circumstances would change the calculation.

Why Isn’t the Final Tax Exactly 37%?

The United States uses graduated tax brackets: different slices of taxable income are taxed at different rates.

For a single filer in 2026, the 37% bracket applies to taxable income above $640,600. Income below that threshold passes through lower brackets.

Crossing into the top bracket does not cause all your income to be taxed at 37%.

Marginal Rate Versus Effective Rate

Two terms help keep this straight:

For ordinary-sized incomes, the difference between these rates can be substantial. For a $262.8 million prize, nearly all the taxable income falls above the top-bracket threshold. The lower brackets still help, but their effect is small relative to the jackpot.

That is why “roughly 37% in federal income tax” is a useful estimate here—while “exactly 37% of the whole prize” is not the actual calculation.

Likewise, subtracting 24% from 37% gives a useful rough warning: you may need another 13% of the prize. But the precise shortfall comes from calculating the full tax bill and subtracting the withholding.

Do You Have Until Filing Day to Pay the Difference?

Not necessarily.

Federal income tax is generally a pay-as-you-go system: payments are expected during the year, through withholding or estimated tax payments, which are payments you send directly to the IRS.

A winner may therefore need to make an estimated payment before filing the annual return. Whether an underpayment penalty applies depends on the timing and amount of payments and the applicable rules, including rules tied to prior-year tax. A large balance due does not, by itself, establish that a penalty is owed. The IRS’s Publication 17 discusses these payment requirements.

The practical move is to reserve the approximately $34.1 million shortfall immediately and get qualified tax advice about payment timing.

The Number That Matters Is What Remains After the Final Bill

In this example, three different numbers describe three different stages:

1. $262.8 million: the cash prize before taxes.
2. $199.7 million: the initial payment after 24% federal withholding.
3. $165.6 million: what remains after the final federal income tax bill.

State and local taxes, if applicable, could reduce the last figure further.

The essential lesson is simple: 24% withholding is a tax payment, not a promise that your tax rate is 24%. Before treating a jackpot check as spendable wealth, account for the bill that withholding has not yet covered.