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Tax

Lottery Tax Calculator

The jackpot looks huge — here's what you actually keep after Uncle Sam takes his cut.

Updated July 2026 · Editorial standards

Your lump sum after tax
$34,800,000
Lump sum (pre-tax)
$60,000,000
Annuity total after tax
$58,000,000
Federal tax (37%)$22,200,000State tax$3,000,000

Lottery details

$
%
%

Key figures

Lump sum after tax
$34,800,000
Lump sum (pre-tax)
$60,000,000
Federal tax (37%)
$22,200,000
State tax
$3,000,000
Annuity net total
$58,000,000

A $100,000,000 jackpot lump sum pays $60,000,000 before tax — you keep $34,800,000 after federal (37%) and state (5%) taxes.The 30-payment annuity totals $58,000,000 after tax — $23,200,000 more than the lump sum. Lump sum wins if you invest it; annuity wins if you'd spend the lump sum.

Lump sum breakdown

Lump sum after tax
$34,800,000
By KalkWiseVerified against official sources Updated July 2026

What is the lottery tax calculator?

In short

A $100 million Powerball jackpot pays a $60 million lump sum before tax. After 37% federal tax ($22.2M) and 5% state tax ($3M), you keep $34.8 million. The 30-payment annuity totals $63M after the same tax rates — $28.2M more than the lump sum after tax, but spread over 29 years. Most winners take the lump sum.

This lottery tax calculator shows your after-tax winnings for any jackpot — comparing the lump sum option to the annuity payout with federal and state taxes applied to both.

How to use this calculator

  1. 1Enter the advertised jackpot amount.
  2. 2Set the lump sum percentage (typically 60% of the jackpot).
  3. 3Enter your state's income tax rate on lottery winnings (0% in FL, TX, CA, etc.).
  4. 4Compare your lump sum after tax to the annuity net total.

The formula

lump=jackpot×pct
net=lump×(1−fed−state)
Lump sum = jackpot × lump sum %. Federal tax = lump sum × 37% (top marginal rate). State tax = lump sum × state rate. Net = lump sum − federal − state. Annuity: 30 payments of jackpot ÷ 30, each taxed at the same combined rate.
lump sum
— One-time cash payment — typically 60% of advertised jackpot
federal rate
— 37% — the top marginal federal bracket that applies to large lottery wins
annuity
— 30 annual payments growing at 5% per year over 29 years
state rate
— Varies 0%–10% — 8 states have no lottery withholding

Worked example

The scenario

$200 million Mega Millions jackpot, 60% lump sum, 5% state tax.

gives

The result

Lump sum: $120M. Federal tax (37%): $44.4M. State tax (5%): $6M. You keep $69.6M. Annuity net total: $126M — $56M more after tax but paid over 29 years.

Common use cases

  • Deciding between lump sum and annuity lottery options
  • Planning taxes on a large unexpected windfall
  • Understanding why advertised jackpots look much bigger than actual take-home
  • Comparing Powerball vs Mega Millions after-tax value

Limitations & assumptions

  • Federal rate shown (37%) is the top marginal bracket — your effective rate on lower income brackets is lower.
  • Mandatory federal withholding is 24% at payment; the remaining tax is due at filing.
  • State tax rates vary significantly — CA taxes lottery at ordinary income rates (up to 13.3%); FL and TX have 0%.
  • Annuity payments grow annually (Powerball increases 5%/year) — this calculator shows equal payments for simplicity.

Frequently asked questions

The advertised jackpot is the annuity value — what you'd receive over 29 years in growing annual payments. The lump sum (cash value) is the present value of those payments, typically 50–65% of the advertised jackpot. Powerball's lump sum is about 60%. A $100M jackpot = ~$60M lump sum before any taxes.

Disclaimer: KalkWise calculators are provided for general informational and educational purposes only and do not constitute financial, investment, tax, or legal advice. Results are estimates based on the figures you enter and the assumptions described above. Actual outcomes will vary. Consult a qualified professional before making financial decisions.