Welcome to Jackpot Compass
Jackpot Compass is a lottery payout and tax-planning calculator for comparing an advertised annuity with the cash option. It creates a year-by-year payment schedule, estimates federal and state taxes, and highlights the numbers most people want to see first.
Quick Start
- Choose a gameOpen the Calculator tab and select Powerball, Mega Millions, Lotto America, or Millionaire for Life.
- Enter or update the prizeUse the advertised jackpot and official cash option fields, or open Live API to retrieve official MUSL values.
- Set your tax assumptionsOpen Tax Settings, select a state and federal filing status, then review the withholding rate.
- Review the comparisonReturn to Calculator and read the six summary cards, calculation details, and payment schedule.
- Save the scheduleSelect Download CSV to save the complete table for use in a spreadsheet or other program.
1. The Calculator Tab
Choose a game
The Game menu controls the prize fields, payment model, and schedule used by the calculator.
| Game | How Jackpot Compass models it |
|---|---|
| Powerball | 30 payments: one immediate payment plus 29 annual payments, with each payment modeled 5% larger than the previous payment. |
| Mega Millions | 30 payments: one immediate payment plus 29 annual payments, with each payment modeled 5% larger than the previous payment. |
| Lotto America | 30 graduated annual payments, generally increasing 5% per year, with the app applying its rounding method. |
| Millionaire for Life | Level annual payments for life, modeled through the age you select and with at least the guaranteed payment period. |
Enter prize information
For Powerball, Mega Millions, and Lotto America, enter the Advertised annuity jackpot and Official cash option. Commas and dollar signs are allowed.
For Millionaire for Life, select the prize tier, enter the winner's age at the first payment, and choose the age through which payments should be projected.
Understand the prize source banner
| Banner | Meaning |
|---|---|
| Official MUSL values | Prize data was retrieved through the Live API and has not been manually changed afterward. |
| Manual prize values | The displayed values were entered manually or edited after a live lookup. |
| Published fixed prize values | The selected life-game values are built-in published amounts; Live API can be used to refresh available official data. |
The Current Advertised Jackpot and Current Cash Value cards repeat the values currently being modeled. For Millionaire for Life, the first label changes to Current Annual Prize.
When live data is available, the page also shows the latest completed drawing and the next scheduled drawing.
2. Reading the Summary Cards
| Summary card | What it means |
|---|---|
| First Net Payment | The first modeled payment after estimated federal and state income taxes. |
| Final Net Payment | The final payment in the displayed model after estimated taxes. |
| Total Net Payments | The sum of all modeled annuity payments after estimated taxes. |
| Cash Option Net | The estimated cash option remaining after the same federal and state tax assumptions. |
| Cash % of Annuity | The gross cash option divided by the gross advertised annuity total. This is not an investment-return comparison. |
| Break-Even Year | The year when cumulative gross annuity payments first equal or exceed the gross cash option. It does not account for investment returns, inflation, or the time value of money. |
3. Calculation Details and Payment Schedule
Show Calculation Details
Open Show Calculation Details to see the assumptions and totals behind the annuity and cash estimates. The section is collapsed by default to keep the main page tidy.
Payment schedule columns
| Column | Description |
|---|---|
| Year | Payment number in the model. |
| Age | Shown for Millionaire for Life projections; blank for standard jackpot games. |
| Gross Payment | Payment before estimated taxes. |
| Federal Taxable | Gross payment minus the modeled standard deduction, with the deduction increased in future years by the selected annual inflation assumption. |
| Est. Federal Tax | Estimated federal income tax using the selected filing status and modeled ordinary-income brackets. |
| Est. State Tax | Gross payment multiplied by the selected state planning rate. Local taxes and many state-specific rules are not included. |
| Net Payment | Gross payment minus estimated federal and state tax. |
| Fed. Withholding | The amount that would be withheld using the selected withholding percentage. Withholding is not the same as final tax. |
| Extra Fed. Reserve | Additional amount above modeled withholding that may be needed to cover the estimated federal tax. |
| Effective Tax | Estimated federal plus state tax divided by the gross payment. |
Select Simplified table to hide Federal Taxable, Fed. Withholding, Extra Fed. Reserve, and Effective Tax. The CSV download still provides the schedule produced by the calculator.
4. Tax Settings
Basic settings
| Setting | How it is used |
|---|---|
| State used for tax estimate | Loads a planning rate and a note for the selected state. Some rates are flat rates; others are top marginal planning rates. |
| Federal filing status | Selects the modeled federal ordinary-income brackets and basic standard deduction. |
| Federal withholding rate | Estimates the amount withheld from each payment. The default may not cover the full modeled federal tax on a large prize. |
Advanced assumptions
| Setting | How it is used |
|---|---|
| Applied state planning rate | Shows the rate loaded for the selected state. Enable the override only when testing a different assumption. |
| Standard deduction | Loaded from the selected filing status and shown as a read-only base-year amount. |
| Annual federal bracket/deduction increase | Increases the modeled federal brackets and standard deduction in future payment years. It is an assumption, not a forecast or guarantee. |
Select Clear all saved information to remove locally saved calculator choices and any API key that was intentionally remembered in that browser.
5. Official Live Prize Lookup
The Live API tab can retrieve the advertised annuity, cash option, latest completed drawing date, and next scheduled drawing date for the selected game.
- Get a keySelect Get free API key and complete the MUSL registration process.
- Enter the keyPaste the key into MUSL API key. Use Show only when you need to verify what was entered.
- Choose privacy optionsRemember key in this browser stores the key locally in that browser. Leave it unchecked on a shared or public device.
- Update the gameSelect Update selected game now. The green official-data banner confirms when the values were applied.
- Optional automatic updatesEnable Automatically update when the game changes to request new values whenever another supported game is selected.
Test lookup service
Test lookup service checks whether the included lookup service can respond. This is mainly useful for local or packaged versions of Jackpot Compass.
When a lookup fails
Manual amounts remain available. Common causes include a missing or invalid key, DNS problems, firewall or antivirus filtering, a temporary service outage, or a temporary network or lookup-service problem.
6. Millionaire for Life
Millionaire for Life uses a different model from the jackpot games. Choose the top or second prize, enter the age at the first payment, and set the projection end age.
The model uses at least the guaranteed payment period even when the selected end age would produce fewer years. Payments described as “for life” are inherently uncertain because the calculator cannot know the winner's lifespan.
7. Saved Information and Privacy
Jackpot Compass saves ordinary calculator entries in the browser so the page can reopen with your recent selections. This may include the selected game, prize amounts, state, filing status, ages, and planning assumptions.
The API key is saved only when Remember key in this browser is selected. Clearing browser storage, using private browsing, switching browsers, or selecting Clear all saved information can remove saved entries.
Avoid using the remember option on shared computers. Jackpot Compass does not need your name, Social Security number, ticket number, bank information, or other sensitive personal data.
8. Mobile and Accessibility Tips
- On a phone, scroll horizontally inside the payment schedule to view additional columns.
- Use Simplified table when the full schedule feels crowded on a small screen.
- The Year, Gross Payment, and Net Payment columns remain easier to track on wider screens.
- Browser zoom can help, but extreme zoom levels may make large tables harder to navigate.
- Use Download CSV when detailed analysis is easier in another program.
9. Troubleshooting
| Problem | Try this |
|---|---|
| Results do not change | Pause after typing or select Refresh Results. Check for an invalid negative or nonnumeric entry. |
| Cash Option Net says “Not entered” | Enter an Official cash option amount for the selected jackpot game. |
| Drawing dates say “Not loaded” | Open Live API and update the selected game. Manual entries do not supply drawing dates. |
| Live lookup times out | Confirm the API key, test the service, check the network, and try again. Manual values remain usable. |
| State tax looks too high or too simple | Read the state note. Many states use a top-rate planning estimate, and local or special rules may not be modeled. |
| Withholding is lower than federal tax | That can be normal for a large prize. Review Extra Fed. Reserve and consult a tax professional. |
| Old information keeps returning | Open Tax Settings and select Clear all saved information, or clear site data in the browser. |
| CSV will not open | Open it with a spreadsheet application or import it as a comma-separated text file. |
10. How to Use the Results Responsibly
- Treat every number as a planning estimate, not a quote or guarantee.
- Verify the prize and drawing details with the official lottery before comparing options.
- Do not assume the withholding amount equals the final federal tax bill.
- Consider the time value of money, investment risk, inflation, spending behavior, estate planning, and creditor or privacy concerns outside the calculator.
- Before claiming a major prize, consult qualified legal, tax, and financial professionals who regularly work with high-net-worth clients or lottery winners.
Disclaimer
Jackpot Compass is a personal hobby project created for entertainment and general educational purposes only. Its calculations, tax estimates, payout schedules, prize values, and other information are rough planning estimates and may be incomplete, inaccurate, outdated, or inapplicable to a particular situation.
Jackpot Compass does not provide tax, legal, accounting, investment, or financial advice. Do not rely on it to file a tax return, claim a prize, make a financial decision, or choose between a cash option and an annuity.
The application is not affiliated with, endorsed by, or sponsored by Powerball, Mega Millions, Lotto America, Millionaire for Life, MUSL, any state lottery, or any government agency.