Annuity vs Lump Sum Calculator
Compare lottery payout options and see which is better for you
Formula:
Compare: Annuity Total vs Lump Sum + Investment GrowthJackpot Details
Enter your lottery winnings scenario
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Payout Comparison
30-year comparison
Recommendation
Take the Lump Sum
Difference: $14,612,454 (72.4%)
Annuity Option
Gross Total:$100,000,000
After Tax Total:$58,000,000
Payment Period:30 years
First Payment (est):$872,983/yr
Lump Sum Option
Gross Amount:$60,000,000
After Tax:$34,800,000
If Invested (30yr):$264,906,475
Receive:Immediately
Total Tax (Lump)
$25,200,000
Effective Tax Rate
42.0%
Investment Growth
$230,106,475
Annuity Years
30 years
Important: This is a simplified comparison. Consult with a financial advisor and tax professional before making this irreversible decision. Consider your spending habits, age, health, and investment experience.
Example Scenarios
Quick-start with common scenarios
Quick Answer
The lump sum is typically 50-60% of the advertised jackpot. For a $100M jackpot: Lump sum = ~$60M gross, ~$38M after 37% federal tax. Annuity = 30 payments over 29 years, ~$63M total after tax. If you can invest at 7%+, lump sum usually wins. If you might overspend, annuity protects you from yourself.
Key Facts
- Lump sum is typically 50-60% of advertised jackpot
- Annuity is paid over 29 years (30 payments) for Powerball/Mega Millions
- Annuity payments increase ~5% annually to keep pace with inflation
- Federal tax withholds 24%, but top bracket is 37%
- 9 states have no income tax on lottery winnings
- Lump sum allows immediate investment but requires discipline
- Annuity provides guaranteed income but isn't inflation-adjusted enough
- 70%+ of lottery winners take the lump sum
FAQ
Should I take the lump sum or annuity?
It depends on your financial discipline and investment knowledge. The lump sum is mathematically better if you can earn >5% returns annually. However, many winners go broke because they spend too quickly. The annuity acts as forced savings and protects against poor decisions.
Why is the lump sum so much less than the advertised jackpot?
The advertised jackpot is the total of 30 annual payments. The lump sum is the present value of that money - what the lottery actually has on hand. The annuity amount includes 29 years of investment returns that the lottery earns.
How much will I actually receive after taxes?
For a $100M jackpot with 60% lump sum option: Gross lump sum = $60M. Federal tax (37%) = $22.2M. State tax (varies, ~5%) = $3M. Net = ~$34.8M. Annuity taxes are paid annually on each payment.
Can I change my mind after choosing?
No. Once you select lump sum or annuity, the decision is final and irrevocable. You cannot switch later. Take time to consult with financial advisors and tax professionals before claiming.
What happens to annuity payments if I die?
Annuity payments continue to your estate or designated beneficiaries. They can be inherited but cannot be accelerated to a lump sum. Some states allow selling future payments to a third party at a discount.
How this works
Calculations follow the published mathematics of the game — combinatorics for cards, probability theory for dice, and expected-value accounting for wagers. Results are verified against independent references (primarily Wizard of Odds). No calculation here is an opinion or recommendation; it is arithmetic applied to the rules of the game.
What this tool can’t do
When to consult a professional
This tool computes probability and expected value. It is not a betting system and cannot predict the outcome of any individual wager. If gambling is causing problems for you or someone you know, call the National Problem Gambling Helpline at 1-800-GAMBLER.
Sources
- [1]Wizard of Odds — Michael Shackleford, ASAIndustrywizardofodds.comAccessed Apr 21, 2026
Actuary; widely cited casino-game probability reference. Used for house-edge and EV verification.
- [2]National Council on Problem GamblingOfficial sourcencpgambling.orgAccessed Apr 21, 2026
Responsible-gambling guidance and 1-800-GAMBLER helpline.
Joseph OrdunaFounder & Software Engineer
Full-stack software engineer specializing in embedded systems, web architecture, and AI/ML. Founder of Practical Web Tools. Built the gesture-controlled drone IP acquired by KD Interactive (Aura Drone, sold on Amazon).