Currently using: auto-calculated from your budget entries.
Monthly Investment Override ($)
Leave 0 to auto-calculate from Retirement tab contributions
Currently using: auto-calculated from your retirement contributions.
Assumptions
Nominal Return Rate (%)
Average annual investment return BEFORE inflation (S&P 500 historical ≈ 10%)
Inflation Rate (%)
Used with your Return Rate to compute real (today's-dollar) growth across all projections.
Safe Withdrawal Rate (%)
Annual withdrawal percentage in retirement
These defaults pre-populate your calculators and projections. You can still override them per calculator.
General
Household Name
Used for combined household and couple views
Members PRO
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Preferences
Show Cents
Display decimal places on all dollar amounts
Budget Reset Day
Day of the month your budget period resets
Density
Spacing and information density site-wide
Subscription & Billing
Current Plan
Free
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What you unlock with Pro
✓Retirement projections
✓Multiple FIRE calculators
✓What-If scenario builder
✓Net worth history chart
✓Savings rate trend chart
✓Snowball vs. Avalanche comparison
✓Social Security optimizer
✓Planning tools suite
✓Household & partner mode
✓Export all data to CSV
Manage Subscription
Update payment method, cancel, or view invoices
Upgrade to Pro
$9/mo or $79/yr — cancel anytime
Export Your Data
Export as JSON
Full backup of all plans, goals, debts, and settings
Export as CSV
Spreadsheet-compatible export of your budget and goals
Import Data
Restore from a backup or migrate data from another app.
Import from JSON Backup
Restore a previous Fire Trajectory backup file
Import from CSV
Import budget items or transactions from a spreadsheet
JSON import restores all data including settings. CSV import adds budget entries. Existing data will not be overwritten.
Data Backups
Your budget, savings, debts, subscriptions, bill checklist, and retirement data
are automatically snapshotted to the cloud once per day. If something ever goes
wrong, you can restore from any of the last 7 daily snapshots below.
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Tip: when you restore, your current data is also saved as a
pre-restore snapshot so you can undo if you change your mind.
Privacy & Data
Privacy Policy
Review how we collect, use, and protect your data.
Targets the smallest debt first. Every other debt still gets its minimum.
PRO
Targets the smallest debt first. Every other debt still gets its minimum.
EXTRA PER MONTH
$
Pay more than your minimums to get debt-free faster
Welcome to Fire Trajectory!
Start by adding your budget, then track your debts and net worth to unlock your FIRE score.
Budget→
Monthly Income
—
Bills & Expenses
—
Remaining
—
0% of income allocated
Savings Goals→
Active Goals
—
Total Saved
—
Total Target
—
Debt Payoff→
Total Debt
—
Debts Tracked
—
Min Payments/mo
—
Subscriptions→
Active Subs
—
Monthly Total
—
Annual Cost
—
Net Worth & FIRE Progress→
Total Assets
—
Total Liabilities
—
Net Worth
—
Progress to FIRE
—
Investable assets toward goal
Target: —
Retirement→
Retire Age
—
Years Away
—
Projected Balance
—
Monthly Income
—
HSA TrackerPRO→
Receipts
—
Unreimbursed
—
YTD Contributions
—
IRS Limit
—
Contribution Progress
—
$0 of $0 limit
FIRE Health Score
FIRE Score
—
FIRE Milestones
FIRE CalculatorsPRO
Advanced Planning ToolsPRO
Pro Shortcuts
These are example numbers. Replace them with your real info — your data saves automatically once you make any changes.
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Sun
Mon
Tue
Wed
Thu
Fri
Sat
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Remaining
$0
of $0
Paid
0 of 0
0% complete
Monthly Income
TOTAL MONTHLY · No active sources
$0
AFTER ALL BILLS
$0
0% free
Fixed Monthly Bills
Debt Obligations — from Debt tab
No debts tracked yet
Add loans, credit cards, or other obligations to see a unified payoff view.
Subscriptions — from Subscriptions tab
No subscriptions tracked
Track recurring charges to catch silent spend and forecast your monthly outflow.
Savings Obligations — from Savings tab
No savings goals set
Create a target — emergency fund, down payment, sinking fund — and we'll track the runway for you.
Budget Summary
Monthly Income$0
Fixed Bills−$0
Debt Payments−$0
Subscriptions−$0
Savings Goals−$0
Remaining / Month$0
Savings Rate Trend PRO
Last 24 months
These are example numbers. Replace them with your real info — your data saves automatically once you make any changes.
Savings Goals
Set targets, track contributions, and reach every milestone
Total Saved
$0
Total Target
$0
Overall Progress
0%
Goals Tracked
0
Filter:
Sort:
These are example numbers. Replace them with your real info — your data saves automatically once you make any changes.
Your Debts
Payoff Timeline
Based on your current balances, rates, and payoff method.
Priority order vs. Payoff timeline
Priority is the order your extra payment is directed. Snowball targets the smallest balance first; Avalanche targets the highest APR.
The timeline below shows the actual chronological order each debt hits $0. Those two don't always match — sometimes a smaller debt finishes from its minimum payment alone before a higher-priority debt gets knocked out.
Priority target Currently receiving your extra payment.
Paid early Finished sooner than its priority rank — often a small balance, or a minimum payment that's large relative to the balance.
Delayed Finished later than its priority rank — usually a larger balance, or a minimum payment that's small relative to the balance.
No payoff plan yet
Add at least one debt with a balance and rate to generate a month-by-month timeline.
Method Comparison PRO
Snowball vs Avalanche — which saves you more?
Snowball
Smallest debt first
38 months
$2,840 total interest
Avalanche
Highest interest first
34 months
$1,920 total interest
Pro Feature
Subscriptions
Track your recurring costs and spot savings opportunities
Monthly Cost
$0
Annual Cost
$0
Active Subs
0
Paused
0
Track your complete financial picture. Retirement account balances pull from the Retirement tab automatically. Add your other assets and liabilities below.
Total Assets
—
Total Liabilities
—
Net Worth
—
25
Cash & Savings$0
Retirement Accounts$0
Investments & Brokerage$0
Non-retirement only. Taxable brokerage earmarked for FIRE belongs in the Retirement tab to avoid double-counting.
₿ Crypto$0
Only list crypto here if it's not already entered as Crypto in the Retirement tab.
Real Estate$0
Vehicles$0
Other Assets$0
Liabilities$0
Net Worth History PRO
Monthly trend of your assets, liabilities, and net worth
Current Portfolio
Contributing $0/yr
$0
Your Numbers
Current Age
Target Retirement Age
FIRE · 25 yrs
40 FIRE75 Late
Nominal Return %
Historical avg
3% Conservative15% Optimistic
≈ 6.8% real (inflation-adjusted)
How real return is calculated
Employer Plans▾
AccountBalanceAnnual Contrib
401(k)
403(b)
457(b)
Roth 401(k)
Solo 401(k)
IRA Accounts▾
AccountBalanceAnnual Contrib
Traditional IRA
Roth IRA
Rollover IRA—
SEP-IRA
SIMPLE IRA
Health & Tax-Advantaged▾
AccountBalanceAnnual Contrib
HSA
Partner's Accounts▾
AccountBalanceAnnual Contrib
Partner 401(k)
Partner 403(b)
Partner 457(b)
Partner Trad. IRA
Partner Roth IRA
Partner Rollover IRA—
Partner HSA
Taxable & Other▾
When should I enter balances here?
Only enter balances here if you plan to use these as retirement money. Assets you're holding for other goals (and already tracking in Net Worth) should stay there — otherwise they'll inflate your retirement projection.
AccountBalanceAnnual Contrib
Taxable Brokerage
I Bonds / Treasury
Cryptocurrency
Pension—
Annuity
Real Estate / REITs
Other
Total Portfolio$0
These are example numbers. Update them with your real balances — your data saves automatically.
Current Pace
Contributions stay exactly as-is today
Moderate Boost
+10% on every contribution
Aggressive Growth
+25% on every contribution
Portfolio Value Over Time — All Scenarios
Projected Total at Age 55(today's $)
—
4% Rule Monthly Income (today's $)
—/mo
All Scenarios at Age 55(today's $)
Current Pace
—
—/mo
Moderate Boost
—
—/mo
Aggressive
—
—/mo
Coast FIRE Calculator
Find out if you already have enough invested to coast to retirement
Coast FIRE Number
—
Amount needed today to coast
FIRE Number
—
Total needed at retirement
Coast FIRE Age
—
Age you can stop saving
Status
—
Your progress
BaristaFIRE Calculator
Semi-retired — part-time income covers your gap, so your portfolio only needs to fund the rest
Barista job, freelance, side income — this reduces your required portfolio
BaristaFIRE Number
—
Portfolio needed at semi-retirement
vs Full FIRE
—
Without part-time income
BaristaFIRE Age
—
Years from today
Income Coverage
—
Part-time covers expenses
Retirement Income Breakdown
Standard FIRE Calculator
Classic 4% rule — the most widely recommended approach
FIRE Number
—
Total needed to retire
Years to FIRE
—
From today
FIRE Age
—
When you can retire
Savings Rate
—
Of take-home pay
Advanced Planning Tools
Sequence of Returns Risk
See how early portfolio crashes devastate retirement vs. the same average return in a good order
$
$
Both scenarios use the same average return — only the timing differs. An early crash + withdrawals permanently reduce the base, illustrating sequence-of-returns risk.
Monte Carlo Simulator
Run thousands of random market scenarios to find your true probability of retirement success
$
$
Each simulation draws a random annual return from a normal distribution. Bands show P10–P90 range; the bold line is the median (P50) outcome.
Roth Conversion Ladder
Plan annual Traditional → Roth conversions to minimize taxes and fund early retirement before 59½
$
$
$
$
Nominal (before inflation) — matches the nominal tax brackets used below. Balances shown are in future dollars, not today's.
Uses 2026 federal tax brackets and standard deduction ($15,750 single / $31,500 MFJ). Roth conversion amounts become accessible penalty-free after 5 years (the "ladder"). State rates are approximate marginal rates — consult a tax advisor for precise figures.
Withdrawal Strategy Simulator
Compare drawdown strategies to see how long your portfolio lasts in retirement
$
$
Strategy
Yr 10
Yr 30
Outcome
Social Security Optimizer
Find your optimal claiming age to maximize lifetime benefits
$
$
Estimates based on 2026 SSA bend points and benefit formulas. For exact figures, check your statement at ssa.gov.
Geographic Arbitrage Calculator
See how retiring abroad reduces your FIRE number and timeline
Recommended Resources
Vetted tools, brokerages, and services I personally recommend to help you reach FIRE faster.
Affiliate Disclosure: Some links on this page are referral links. If you sign up through them, we may earn a commission — at no extra cost to you. We only recommend tools we'd use ourselves.
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Product Roadmap
What's Coming Next
See what we're building, submit your ideas, and vote on what gets built next.