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Free · Higher-spending scenario

Fat FIRE calculator

Model a higher-spending retirement scenario with your own spending, current investments and annual contributions. The required portfolio and timeline depend on the assumptions you enter.

Example under stated assumptions · Snowballr calculation
A higher spending target changes the arithmetic portfolio target
$200,000 annual spending divided by a 4% initial-rate assumption equals $5,000,000, before any separate tax estimate.
This calculator does not estimate taxes or convert a gross portfolio withdrawal to after-tax spending.

Portfolio arithmetic at selected rates

  • $100,000/year: $2,500,000 at a 4% initial-rate assumption; $2,857,143 at 3.5%
  • $150,000/year: $3,750,000 at 4%; $4,285,714 at 3.5%
  • $200,000/year: $5,000,000 at 4%; $5,714,286 at 3.5%
  • $300,000/year: $7,500,000 at 4%; $8,571,429 at 3.5%
  • $500,000/year: $12,500,000 at 4%; $14,285,714 at 3.5%
  • Each figure is annual spending divided by the stated rate. Neither rate is presented as suitable for every retirement.

Model your own timeline

There is no income-only timeline: annual contributions, current assets, spending, return assumption and target rate all affect the result. Enter those values in the calculator above; its fixed-return timeline is an illustration, not a forecast. Income tax, account limits and fees are not modeled.

Taxes and account rules are not included

Account contribution limits, eligibility and tax treatment change and depend on plan and household details. This calculator models invested balances and deposits only; check current IRS guidance and plan documents, then estimate taxes separately for your circumstances.

Fat FIRE Calculator FAQ

What's the difference between Fat FIRE and regular FIRE?

Fat FIRE is often used for a higher-spending financial-independence goal. There is no universal cutoff; enter your own spending and rate assumption to calculate the corresponding arithmetic target.

Do I need to live somewhere expensive for Fat FIRE?

Location affects a household budget, but there is no location-independent spending amount that defines this term. Build your estimate from the costs and lifestyle you plan to fund.

What investments fit Fat FIRE portfolios?

This calculator does not recommend investments or an asset allocation. Portfolio choices, risk tolerance, taxes and fees are separate decisions; consider qualified professional guidance for your circumstances.

Should I retire fully or transition to consulting?

The calculator assumes only the annual contribution you enter. If you plan to work part-time or consult, estimate after-tax income and duration separately; no employment income is included in the results.

How does Fat FIRE handle estate planning?

Estate and gift-tax rules depend on current law, jurisdiction and individual circumstances. This calculator does not assess estate-tax exposure; consult current IRS guidance and a qualified tax or estate professional.

Is Fat FIRE realistic on a single income?

The calculator has no minimum-income requirement. A timeline depends on the starting portfolio, annual deposits, spending target and return assumption entered; it does not estimate whether a particular income makes the goal feasible.

Related calculators

FIRE calculator
All FIRE flavors.
Lean FIRE calculator
Model a lower-spending target.
Coast FIRE calculator
Model a no-further-deposit scenario.
Retirement calculator
Traditional retirement math.

Methodology and editorial standards

Each calculator uses its own inputs and method. Review the labels, units and assumption notes shown with the result. Costs, taxes, fees, benefits and other factors are not modeled unless the page or calculator explicitly says they are. A fixed-rate projection is a scenario, not a forecast or personalized recommendation.

The editorial standards explain how Snowballr reviews calculators and sources. The sources index links to references used across the site. To report an error or suggest a correction, use the contact page.