SDLAB 01
FIRE LABMapping your path to optionality
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SDFIRELABby Slam Dunks Studios
DEMO PLANSep 2026
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Demo financial plan — edit any value to make it yours.
FINANCIAL INDEPENDENCE

You’re building optionality.

At your current pace, you could reach financial independence around age 56.

Current net worthCurrent
$443,000
Invested$185,000
Cash$22,000
Home equity$230,000
Debt$407,000
17%to FIRE
Normal FIRE milestone$1,065,000

$72,000/yr at a 4% withdrawal rate · mortgage timing modeled in the retirement path

FINANCIAL FREEDOM CHECKLIST

0% complete

0 of 10 steps
NEXT STEPMap cash flow and net worth

List what comes in, what goes out, what you own, and what you owe. A clear baseline makes every next decision measurable.

DECISION STUDIO · WHAT TO MODEL NEXT

Turn the plan into a next move.

These are transparent scenarios generated from your current assumptions—not prescriptions. Model one locally to see the tradeoff before changing your plan.

SCENARIO TO TEST

Invest $450/month more

Model a $450 monthly increase for the remaining contribution window.

More invested capital can bring the funding target forward and create more retirement margin.
FI ageAge 56 Age 53
At retirement+$329.6K
Mortgage paidAge 55 Age 55
SCENARIO TO TEST

Put $500/month toward the mortgage

Model an extra $500 each month while keeping the rest of the plan unchanged.

Paying down the loan sooner can release housing cash flow and reduce the balance carried into retirement.
FI ageAge 56 Age 53
At retirement+$10K
Mortgage paidAge 55 Age 50
SCENARIO TO TEST

Spend $3,600/year less in retirement

Model a $3,600 reduction in planned annual retirement spending.

A lower target requires less capital, which may change both the FIRE age and the portfolio runway.
FI ageAge 56 Age 54
At retirement+$6K
Mortgage paidAge 55 Age 55

Calculation uses the same accumulation, inflation, mortgage-payoff, and retirement-withdrawal model as the rest of FIRE Lab. Returns and outcomes are uncertain; modeling a move does not apply it until you choose to do so.

Estimated FI age5622 years from nowExplore

Based on your current assumptions, the portfolio could fund your modeled lifestyle plus any mortgage payments remaining before payoff.

Contributing $500/month extra for 2 years could move FI about 1 years earlier.
Portfolio after first withdrawal$2.1MAge 60 · 6% base returnExplore

Contributions stop and the first inflation-adjusted retirement withdrawal is modeled at age 60.

Switch the chart to today’s dollars to compare purchasing power consistently.
Retirement runwayThrough age 95$5.7M remains in the base pathExplore

The model withdraws your planned spending each year after retirement and reduces it when the mortgage is paid off.

The base path preserves a positive portfolio through your selected horizon.
Coast FIRE$206.7K awayIllustrative target $391,743Explore

Coast FIRE means your existing investments could grow to fund retirement at age 60 without another contribution.

The model estimates about $206,743 more invested today would reach it.

Returns, inflation, spending, taxes, and retirement timing can all change this result.

LIFETIME PORTFOLIO

Build, retire, then draw from the plan

Contributions stop and inflation-adjusted spending begins at age 60.

BASE RETIREMENT PATHPortfolio preserved through age 95

$72,000/yr in today’s dollars begins at age 60, then falls to $42,600/yr after the mortgage ends. Ending balance: $5,717,972.

Return paths · after contributions and withdrawals
Conservative 4%Base 6%Optimistic 8%
Milestone lines
CoastAge 47Lean FIREAge 48FIREAge 56Fat FIREAge 70Mortgage paidAge 55Retirement + withdrawalsAge 60
Lean FIRE$635.7K
Projected near age 48$48,000/yr
What this means

A lower-cost version of independence: your portfolio can support essential annual spending without employment income.

Your $48,000/yr includes $29,400/yr of mortgage payments. After payoff, the modeled ongoing lifestyle cost is $18,600/yr. FIRE Lab applies your 4% withdrawal rate to that ongoing amount and adds a temporary mortgage bridge only when the milestone arrives before payoff. Return, inflation, contributions, taxes, and timing affect the result.

Contributing $500/month extra for 2 years could move this milestone about 1 years earlier.
FIRE$1.1M
Projected near age 56$72,000/yr
What this means

Financial independence means invested assets can support your chosen lifestyle using your withdrawal-rate assumption.

Your $72,000/yr includes $29,400/yr of mortgage payments. After payoff, the modeled ongoing lifestyle cost is $42,600/yr. FIRE Lab applies your 4% withdrawal rate to that ongoing amount and adds a temporary mortgage bridge only when the milestone arrives before payoff. Return, inflation, contributions, taxes, and timing affect the result.

Contributing $500/month extra for 2 years could move this milestone about 1 years earlier.
Fat FIRE$1.9M
Projected near age 70$105,000/yr
What this means

A higher-spending independence target with more room for travel, generosity, upgrades, and uncertainty.

Your $105,000/yr includes $29,400/yr of mortgage payments. After payoff, the modeled ongoing lifestyle cost is $75,600/yr. FIRE Lab applies your 4% withdrawal rate to that ongoing amount and adds a temporary mortgage bridge only when the milestone arrives before payoff. Return, inflation, contributions, taxes, and timing affect the result.

Contributing $500/month extra for 4 years could move this milestone about 1 years earlier.
ACTIVE MODEL

The assumptions driving every number

Base return6%
Inflation2%
Withdrawal rate4%
Retirement ageAge 60
Projection horizonAge 95
DisplayNominal by default
Normal spending$72,000/yr
Contributions$1,800/mo · 20 years
Mortgage rate4.5%
Mortgage payoffAround age 55
After payoffSpending decreases
Tax treatment25% illustrative rate
MARKET PULSE · DELAYED

Major indexes, without the noise

Checking the markets…Your financial dashboard and projections are unaffected.

Delayed market context from Yahoo Finance, refreshed every 15 minutes. Index moves do not automatically change your manually tracked account balances, and no personal financial data is sent with these requests.

This tool provides illustrative financial projections based on the assumptions you enter. It is not financial, investment, tax, or legal advice. Actual results may differ. FIRE Lab by Slam Dunks Studios.