Endowment Atlas · Dynasty Platform

What to do if you win the lottery — before you claim it

Model your real after-tax wealth across four generations. See exactly what a trust fund is worth over 100 years — every state, every bracket, to the dollar.

56
States, DC & territories
4
Generations
100
Year projection
2026
Tax brackets
Full marginal state tax brackets 7-bracket 2026 IRS schedule Lump sum vs annuity Not financial advice
Understand your real after-tax wealth Compare lump sum vs annuity with real numbers Model your actual family across generations Plan before you hire advisors
Why this matters before you claim

Most winners make irreversible decisions
in the first 48 hours

The decisions you make in the days after winning — before you've spoken to a lawyer — can permanently reduce your family's wealth by millions. This tool exists so you understand the numbers first.

Lump sum vs annuity — the gap is enormous

On a $120M jackpot the difference between lump sum and annuity can exceed $30M in corpus value at year 30. Most people choose without modelling it.

State taxes can cost $15,000+ per person per year

California residents pay $27,000+ in state tax on a $328,000 distribution. Moving the trust to Nevada, Wyoming, or South Dakota legally eliminates that — but only if structured correctly before claiming.

Trust structure timing is irreversible

An irrevocable trust must typically be established before the lottery ticket is claimed. Setting it up afterwards can forfeit key legal and tax protections. You only get one chance to do this right.

Most lottery wealth is gone within five years

Without a distribution structure, large sums disappear through lifestyle inflation, bad investments, and family pressure. A properly modelled endowment trust compounds for 100 years.

State guides → CA California 13.3% top rate FL Florida 0% state tax TX Texas 0% state tax NY New York 10.9% + NYC Lump sum vs annuity →
Inputs
Dashboard
Family tree
Lump sum vs annuity
Lottery details
~45–55% of jackpot
Trust assumptions
2–4% typical
Yes = trust sited in Nevada/SD/WY — specialist legal advice required
Individual = 7-bracket 2026 IRS schedule (10–37%)
Beneficiaries
Leave blank if none
Age at which beneficiaries start receiving distributions
Child birth years

Enter your inputs and calculate to see the 100-year wealth projection

Calculate first to see the full generational family tree

Calculate first to compare lump sum vs annuity