Mega Millions Tax Calculator

A Mega Millions win is taxed in two layers. The federal layer is the same for every winner: the prize counts as ordinary income for the year it's received, taxed at the progressive rates for your filing status. The state layer depends on where the winnings are taxed — from zero in some states to a significant second bill in others.

What moves the needle most is how you take the money. The $5 ticket, the built-in multiplier, the gold Mega Ball — none of that changes the tax code. The payout choice does.

The IRS taxes Mega Millions winnings as ordinary income. The calculator applies the 2026 brackets for your filing status to the taxable amount after the standard deduction: 10%, 12%, 22%, 24%, 32%, 35%, and 37%. A jackpot blows through the lower brackets almost immediately, so the effective federal rate on a large lump sum lands in the mid-30s.

Under the annuity, the math repeats yearly: each of the 30 payments is taxed in the year it arrives, each with that year's standard deduction and brackets. Smaller annual amounts mean lower brackets do more work.

State treatment splits three ways. In Alaska, Florida, Nevada, New Hampshire, South Dakota, Tennessee, Texas, Washington, and Wyoming there is no broad individual income tax, so Mega Millions winnings face no state tax. California exempts lottery winnings from its income tax. In the remaining states, winnings are generally taxed as ordinary income.

The calculator estimates state tax with each state's 2026 top-marginal planning rate — the conservative choice for a jackpot-sized win — and shows $0 where the rules say $0. It doesn't include local taxes, and it flags states whose data is still being verified rather than guessing.

The advertised Mega Millions jackpot assumes the annuity: one immediate payment followed by 29 annual payments, each 5% larger than the last. The cash option is the one-time lump sum equal to all the cash in the jackpot prize pool. It is always the smaller number, and the exact gap shifts with interest rates — which is why the calculator asks you to enter the official cash value instead of estimating one.

Taking the cash means the entire taxable amount lands on a single return. Taking the annuity means thirty smaller returns. Run both above and compare the estimated take-home lines before deciding which story you prefer.

Claim a Mega Millions prize over $5,000 and 24% is withheld for federal taxes on the spot; most states with an income tax withhold their portion too. Think of it as a deposit on the final bill, not the bill itself.

The results above keep the two apart on purpose: one section shows the estimated final tax liability, another shows what was withheld. On a jackpot the liability section is almost always the bigger number — the difference is what you'd still owe at filing time.

Take-home is the taxable amount minus estimated total tax. For a lump sum, that's the cash option minus the single-year tax estimate. For the annuity, the calculator shows one representative annual payment minus that year's tax — it doesn't pretend to forecast thirty years of future tax law.

Treat every figure as a planning estimate. Real returns include other income, deductions, and credits this calculator can't see, so jackpot winners typically settle the details with a tax professional before claiming.