Ten friends put $10 each into a Powerball pool for the Saturday, October 3, 2026 drawing. Alex runs it. Maria, Sam, John and six others each hold one share. Alex buys 50 plays at $2 each, photographs the ticket, and records every line in the pool.
That night, one line matches all five numbers and the Powerball. The advertised jackpot is $500 million.
Before anyone says a number out loud, here is what the money actually looks like. Every figure below is an estimate as of October 1, 2026, built from the lottery’s own rules and the IRS’s published rates. Your real numbers will depend on the drawing, your state and your own tax return. The split calculator runs this math for any prize and any pool.
Step 1: advertised jackpot versus cash value
The $500 million headline is the annuity: one payment now and 29 more, each 5 percent larger than the last, per the Powerball FAQ. The cash value is the smaller amount the lottery has today. For this example, say the lottery lists the cash value at $230,000,000.00.
A pool almost always has to pick one option for the whole ticket: the cash-or-annuity choice belongs to the ticket, and how a lottery pays a group differs by state (your state’s page says how). Suppose the pool agreement says lump sum. Our starting number is $230,000,000.00.
Step 2: federal withholding
When a lottery pays a prize of more than $5,000, it must send 24 percent to the IRS before you see a cent. That rule is in the IRS instructions for Form W-2G.
- Cash value: $230,000,000.00
- Federal withholding at 24 percent: $55,200,000.00
Step 3: state withholding (Wisconsin in this example)
Alex bought the ticket in Wisconsin. The Wisconsin Lottery withholds state tax of 7.65 percent on any prize of $2,000 or more, per its FAQ and Wis. Stat. 71.67(4).
- Wisconsin withholding at 7.65 percent: $17,595,000.00
Other states differ. Florida, Texas and California take nothing at this step. New York takes 10.9 percent plus city tax in New York City. Our state pages list each rate with its source.
Step 4: what reaches the pool
- Cash value: $230,000,000.00
- Minus federal withholding: $55,200,000.00
- Minus Wisconsin withholding: $17,595,000.00
- Paid to the claimant: $157,205,000.00
The lottery writes one check to the person who claims, or to a trust or entity if counsel set one up. The pool record is what turns that one check into ten fair payments.
Step 5: ten equal shares
Ten shares, one each. The pool’s locked snapshot says so, and nobody can edit it after the fact.
- $157,205,000.00 divided by 10 = $15,720,500.00 per person
It divides evenly, so there are no leftover cents this time. Each person’s gross share before withholding was $23,000,000.00; federal withholding took $5,520,000.00 of it and Wisconsin took $1,759,500.00. Check: $23,000,000.00 minus $5,520,000.00 minus $1,759,500.00 equals $15,720,500.00.
Step 6: what if Maria bought two shares?
Now there are 11 shares among ten people. Each person’s payout is the total times their shares divided by 11, worked out in cents.
- Total to split: $157,205,000.00, which is 15,720,500,000 cents
- One share: 15,720,500,000 × 1 ÷ 11 = 1,429,136,363.63 cents
- Maria’s two shares: 15,720,500,000 × 2 ÷ 11 = 2,858,272,727.27 cents
Round everyone down first: nine people at $14,291,363.63 and Maria at $28,582,727.27. That adds to $157,204,999.94, which is 6 cents short. The 6 cents go, one each, to the six largest remainders. The nine one-share members each have a remainder of .63 cents; Maria’s is .27. So six of the nine one-share members get one more cent, in the order the agreement sets (ours uses join order).
- Six members: $14,291,363.64
- Three members: $14,291,363.63
- Maria: $28,582,727.27
Check: 6 × $14,291,363.64 + 3 × $14,291,363.63 + $28,582,727.27 = $157,205,000.00. To the cent, with a line in the record saying who received the extra cents.
Step 7: the tax bill is not finished
Withholding is a down payment, not the tax. For 2026 the top federal rate of 37 percent starts at $640,600 of taxable income for a single filer ($768,700 married filing jointly), per the IRS. Almost all of a $23,000,000.00 share lands in that bracket.
A rough estimate for one equal share: 37 percent of $23,000,000.00 is $8,510,000.00. The lottery withheld $5,520,000.00. That leaves roughly $2,990,000.00 more federal tax owed at filing, before deductions and the lower brackets, which an accountant will work out properly. Wisconsin’s 7.65 percent withholding already matches its top rate, so the state side is closer to settled. In New York or Georgia the state math differs; use the calculator with your state.
So a rough estimate of what one share keeps after the federal tax is nearer $12,730,500.00 than $15,720,500.00, and nearer that than $50,000,000.00, which is what “one tenth of $500 million” sounds like.
How the paperwork works for a pool
The lottery issues tax forms to the person who claims. To split the tax the way the money was split, the claimant gives the lottery IRS Form 5754 listing every member, their taxpayer number and their share. The lottery then issues a separate Form W-2G to each member. Our guide How a pool claims a prize walks through it.
When a pool wins at this level, our app puts the round on hold and preserves everything: the locked shares, the agreement everyone accepted, the ticket photos with their fingerprints, every play, and the official result with its sources. That bundle is what you hand to the lottery, the accountant and the lawyer. It is also why we tell every pool to read You won. The first five things to do. before anything else.
Try it with your own numbers
The split calculator takes any prize, any pool size, any mix of shares, lump sum or annuity, and your state. Every result is in integer cents with the remainder rule shown. The Journey walks the whole path from tonight’s result to a settled pool.
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