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When can you actually retire?

Pick a starting point below and get a full plan in one click — your real FIRE age, projected net worth, and a 150-year market backtest in seconds. A free FIRE calculator that models the hard stuff most tools skip: taxes, RSUs, real estate, and Social Security. No account, nothing uploaded.

Start from a scenario — open it in seconds, edit anything after

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Projected net worthGoal $2.5M

FIRE goalAge 3875
FIRE %
39%
Earliest FIRE age
150-yr survival
Calculating…

Real-dollar projection · 4% SWR · 7% real growth · FIRE goal $2.5M (25× spend). Open a scenario to make it yours.

Since 1871
Stress-tested across 150+ years of market data — 1929, the 1970s, 2008
104 MCP tools
The full engine, callable by Claude or any MCP client — or use the app
100% local
Calculations run in your browser — no account, no upload, no tracking
Deterministic
Real tax math: mega-backdoor, Roth, NIIT/AMT, TLH, RSU splits
Mega-backdoor Roth
Unlimited post-tax 401(k) conversions, NIIT optimization
RSU / equity comp
ISO/NSO/ESPP analysis, concentration tax-loss harvesting
Roth conversion ladder
RMD-, IRMAA- and ACA-aware early-retirement gap
Dual-income households
Staggered retirement, spousal strategies, income splitting
Next Best Dollar
Funding waterfall: 401(k), backdoor, ESPP, HSA, HELOC order
Social Security optimizer
62 / FRA / 70 breakeven, with spousal and survivor strategies
Estate & inheritance tax exposure
Federal exemption + 2026 sunset, 40% rate, portability, 13 state estate taxes + 6 state inheritance taxes (PA/NJ/KY/IA/MD/NE) by heir relationship
i.The whole engine

Everything you need. Designed for HENRY, built for everyone.

Everything below runs in the web app — no account, no signup — and every piece is also callable by your AI agent over MCP.

Tax & equity comp

Mega-backdoor Roth

Post-tax 401(k) conversions, backdoor Roth and IRMAA-aware planning.

Education tax credits (AOTC / LLC)

Optimize the American Opportunity ($2,500/student, 40% refundable) and Lifetime Learning ($2,000/return) credits per student, with the MAGI phase-out band, no-double-dipping rule, and the $4,000 529 carve-out to preserve full AOTC eligibility.

RSU / concentration analysis

ISO/NSO/ESPP and a concentration sell-down with tax-loss harvesting.

HSA-as-retirement optimizer

Treat the HSA as a triple-tax-advantaged retirement vehicle: max-fund and invest the balance (2026 family/self limits + the age-55 $1,000 catch-up), the receipt-shoebox deferred-reimbursement strategy, the 6-months-before-Medicare contribution stop, and the age-65 tax-free-medical vs taxable-non-medical drawdown pivot.

Nonqualified deferred comp (NQDC / 409A)

Model the defer-now-vs-take-now election for high-W2 execs: deferral past 401(k)/415 caps, lump-vs-installment distribution, bracket/IRMAA/Additional-Medicare smoothing into low-income FIRE bridge years, and employer unsecured-creditor risk.

83(b) election & QSBS §1202

Model the irreversible 30-day 83(b) early-exercise election (ordinary→LTCG conversion and the holding-clock start) and the §1202 QSBS gain exclusion of up to $10M or 10× basis — the highest-leverage moves for founders and early employees.

Progressive state tax (all 50 states)

3.8% NIIT and AMT phase-outs, plus progressive brackets for all 50 states + DC with single and married-filing-jointly tables — most states tax RSU and long-term gains as ordinary income.

Roth conversion ladder

RMD-, IRMAA- and ACA-aware conversions for the early-retirement gap.

Tax-gain harvesting

Harvest LT gains at the 0%/15% LTCG rate up to the next bracket, NIIT, or IRMAA cliff — with basis step-up.

Tax-loss harvesting

Lot-level unrealized losses against your ST/LT gain budget + $3k ordinary deduction with carryforward; wash-sale (30-day cross-account) flags and correlated replacement picks.

Lot-level tax-lot optimizer

Pick which purchase lots to sell — HIFO vs FIFO vs specific-ID — to minimize gain or maximize harvested loss, splitting ST vs LT per lot; applies the §1091 wash-sale disallowance to equities and models the crypto carve-out (property, not a security) with a proposed-future-law toggle.

Cross-account rebalance trades

Detect drift beyond your ±3–5% bands across taxable / IRA / Roth / 401(k), then generate the actual buy/sell list to return to your IPS target — rebalancing tax-advantaged accounts first, avoiding short-term gains, harvesting losses (wash-sale aware) and steering new contributions to underweight classes.

Withdrawal sequencing

Drawdown ordering across taxable, traditional and Roth with RMDs enforced.

RMDs & healthcare bridge

Required distributions, plus ACA subsidies and HSA for the pre-Medicare gap.

Social Security claiming optimizer

PIA from AIME and bend points, with 62 / FRA / 70 breakeven and spousal/survivor strategies.

Estate & inheritance tax exposure

Federal exemption with the 2026 sunset, the 40% rate, spousal portability, 13 state estate taxes, AND the 6 state inheritance taxes (PA, NJ, KY, IA, MD, NE) that hit heirs by relationship regardless of estate size — MD double-hits, spouses exempt.

Mortgage prepay & refinance

Prepay-vs-invest and refinance break-even, with lot-level cost basis on the equity side.

Household cash-flow & take-home

Gross-to-net paycheck (pre-tax deductions, federal/state/FICA), monthly free cash flow, gross & net savings rate vs your FIRE target, and a 50/30/20 needs/wants/savings benchmark.

Debt payoff

Avalanche / snowball / invest-instead, counted as a net-worth liability.

Debt consolidation

0% balance-transfer vs personal-loan vs status quo — new rate, fees and intro period, counted as a net-worth liability.

Student-loan strategy

IDR plan selection, PSLF forgiveness vs refinance vs aggressive payoff — total cost and payoff timeline per path.

Auto: finance vs lease vs cash

Compare financing, leasing and paying cash for a car — real-dollar net cost over your hold horizon, net of resale, interest and the opportunity cost of tying up cash, with the loan counted as a net-worth liability.

Self-employed & QBI

Solo 401(k) / SEP / SIMPLE contribution sizing, S-corp reasonable salary, self-employment tax and the §199A QBI deduction.

Owner cash-balance / DB plan sizer

Size the deductible defined-benefit / cash-balance contribution for a profitable solo owner — actuarial annual funding by age, the §415(b) annual-benefit cap, the DB-plus-Solo-401(k) stacked deductible total and tax saved at your marginal rate, plus the SEP-IRA pro-rata trap that blocks a clean backdoor Roth.

Estimated / quarterly taxes

Compute quarterly estimated payments and the 90%/110% safe-harbor thresholds from projected SE/S-corp income to avoid underpayment penalties.

Annualized estimated tax (Form 2210 Schedule AI)

For lumpy / back-loaded income (a Q4 RSU vest, a year-end S-corp distribution): the annualized-income installment method that legally defers estimated payments until the income arrives — per-period required installment vs the even method, recommended schedule, total §6654 penalty avoided, and the cheapest safe harbor.

Retirement relocation

State-tax + cost-of-living arbitrage on a move (e.g. CA→TX/FL) — annual and lifetime after-tax delta, including state estate and inheritance taxes (PA/NJ/KY/IA/MD/NE).

Multi-state part-year residency tax

Model the relocation transition year: split the year by residency days, source wages/RSU-vest/gains/deferred-comp to each state, apply the resident-state credit for taxes paid to the other state, reciprocity agreements and the 183-day statutory-residency test — combined state tax for the move year vs a naive full-year single-state assumption.

529-to-Roth rollover & 5-year superfunding

Roll up to $35k of leftover 529 funds into the beneficiary's Roth IRA (SECURE 2.0, no MAGI phaseout), and front-load up to 5x the annual gift exclusion per donor with the Form 709 5-year averaging election to remove it from your estate.

FAFSA Student Aid Index (SAI/EFC)

Compute the federal-methodology Student Aid Index from parent income/asset and student components, with the simplified-needs and auto-zero tests — then quantify the planning levers: parent- vs grandparent-owned 529s, retirement/home-equity exclusions, and the marginal SAI cost of $1 of base-year income (Roth conversions, capital gains) vs $1 of reportable asset.

Long-term care

Model expected late-life care cost exposure and self-insure vs traditional vs hybrid LTC policy — with the §213(d) premium deduction, medical-floor math and the survivor-plan impact.

Medicare enrollment timing & late penalties

The 7-month Initial Enrollment Period window, the PERMANENT Part B (10%/yr) and Part D (1%/mo) late-enrollment penalties in lifetime dollars, the creditable-coverage test for working past 65 (COBRA is NOT creditable for Part B), the HSA-stop-6-months-before rule, the 8-month Special Enrollment Period after losing employer coverage, and the one-time 6-month Medigap guaranteed-issue window.

Disability income (SSDI + LTD)

Stress-test an income-loss disability: PIA-based SSDI estimate, the 5-month elimination and 24-month Medicare-bridge gap costs, the SGA earnings cap, SSDI→retirement conversion at FRA, the group-LTD dollar-for-dollar SSDI offset, the employer-vs-employee-paid taxability flip, and your after-tax replacement ratio vs the protection shortfall.

Passive activity losses (§469)

$25k allowance phase-out, suspended-loss carryforward, real-estate-professional break-even.

STR Tax Loophole (§469 non-passive)

Average-stay (≤7-day) test + material participation make an Airbnb loss non-passive — offset W-2 income without RE-professional status; recapture at sale quantified.

Cost segregation study

Reclassify a building into 5/15/27.5-yr MACRS classes, front-load current-law bonus depreciation for a 20-30%-of-basis first-year deduction, NPV the acceleration vs straight-line, and quantify the §1245/§1250 recapture at sale.

§1031 like-kind exchange

Plan the 45/180-day identification and closing deadlines, recognize cash and mortgage-relief boot, carry the substituted basis and deferred §1250 recapture into the replacement property, and NPV deferring the tax vs paying cap-gains + recapture + NIIT now.

Divorce settlement / QDRO

Split 401k/pension/IRA via QDRO, after-tax equalization (Roth vs traditional vs taxable), pension PV split, home buyout vs §121 split-sale, post-2019 alimony cost, MFJ→single bracket shift, and the 10-year divorced-spouse Social Security flag.

Projections & FIRE

Year-by-year net worth

A full projection in real dollars with your own inflation assumption.

FIRE %, Coast & Barista

How close you are, your Coast FIRE age, and a minimum-investment path.

Lean / Fat / Barista FIRE variants

Computed target tiers for each archetype, plus a Barista bridge where part-time income covers a spending gap before full drawdown.

Minimum investment required

The least you can invest each year and still hit your date.

Historical backtesting since 1871

150+ years of Shiller data, tested across every market window — 1929, the 1970s, 2008.

Guaranteed income / annuities

Pension lump-sum vs lifetime monthly, SPIA/QLAC vs DIY — present-value, breakeven age and the income floor it buys.

Bond / TIPS income ladder

Floor N years of retirement spend with Treasuries/TIPS — cost today, per-rung maturities, real-vs-nominal coverage and the share of spend it guarantees.

Dynamic spending guardrails

Guyton-Klinger guardrails, VPW, spending smile and bucket strategy — variable spend instead of a static 4%.

Emergency-fund runway

Months-of-runway sizing for job stability, dependents and single vs dual income, plus a cash-vs-invest tradeoff.

Accounts & assets

Stocks & cash

Portfolio contributions and growth, plus cash accounts.

Real estate & rentals

Properties with mortgages, appreciation, taxes and rental income.

Short-term rentals

Airbnb/VRBO: cash-on-cash, cap rate, break-even occupancy.

Hold-period total return

Own a property for N years then sell at the appreciated value — net of selling fees and mortgage payoff — for cash-on-cash, total return and annualized IRR.

Buy / sell timing

Model buying in a few years and selling after a hold, or set the exit price directly after a renovation — proceeds reinvested into your FIRE timeline.

Rent vs buy

Buy-vs-rent break-even on real home appreciation, with the opportunity cost of investing the down payment + monthly difference instead.

Home-equity extraction

HELOC revolving draw/repay, cash-out refinance, and reverse mortgage as a retiree liquidity lever — modeled as a real liability against net worth, not just a funding source.

Speculative & account split

Speculative holdings and a taxable / traditional / Roth split.

Planning & insights

50+ insights

Optimization, risk, strategic and progress insights, each with quantified impact.

Action plan

Insights turned into immediate, short- and long-term steps.

Scenario comparison

Compare plans side by side with deltas against your base case.

Family & lifestyle goals

Kids, college, weddings, lifestyle goals and life events.

Privacy & export

Local-first, no account

In the web app every calculation runs in your browser — nothing uploaded.

JSON export

Download any plan as JSON so it survives even if the site goes away.

PDF & markdown export

A formatted PDF financial plan plus markdown for sharing.

Command palette & dark mode

Cmd+K palette, dark mode, presentation mode and plain-English definitions.

Open the free calculator  →

Better than the alternative.

Why planfi instead of a spreadsheet, an advisor, or a monthly subscription?

vs. your spreadsheet

  • +No manual rebalancing
  • +Real tax optimization, not rules of thumb
  • +Built-in backtesting, not guesswork
  • +Equity-comp analysis for RSUs

vs. a $4k/year advisor

  • +Custom tax engine every time
  • +Estate, Social Security & state-tax planning included
  • +Unlimited scenarios & comparisons
  • +No advisory fees, no minimums
  • +Ask your AI agent to run the analysis

vs. a planning subscription

  • +Free forever — really
  • +No recurring charge, no upsell
  • +Your data stays yours — no sync, no cloud
  • +Export & keep even if we shut down

planfi is and will always be free. We don’t monetize. No account required. No data sold. Built in public, open MCP.

ii.Dashboard & engagement

Your plan comes back
with you.

planfi saves your work in this browser, celebrates milestones, shows momentum since your last check-in, and lets you compare plans side by side. Your progress is always here when you come back.

Saved in this browser — pick up anytime

Since-last-check-in momentum

Earnings, contributions, net-worth delta — see what moved since you last visited.

Milestone celebrations

Coast FIRE reached? First $1M? The OMY "you’ve already won" nudge when you can stop.

Saved models & comparison

Build and compare scenarios in the dashboard. Keep the best, export as JSON.

Presentation / TV mode

Put your plan on a big screen or print it — no code, no spreadsheet nightmares.

Always saved locally: your browser storage keeps everything. No cloud sync, no account. Clear it and it’s gone — you control it all.

iii.The agent capability

Let your AI agent
run the real math.

planfi exposes a free, open MCP server at ai.planfi.app.104 focused tools, guided workflow prompts, and a reusable plan handle let Claude — or any MCP client — chain a complete analysis. The engine does the arithmetic, so the model never has to guess at compound growth or a withdrawal sequence.

  • Deterministic, tested math. Real projections — not an LLM estimating returns.
  • 104 tools + workflow prompts. Callable individually or chained into a full plan.
  • A reusable plan handle. Send the model once, then reference it across calls.
  • No auth, no key, no account. Just point your agent at the URL. Free.
~ add to Claude Code
$ claude mcp add --transport http planfi https://ai.planfi.app/mcp

Click Add to Claude to copy https://ai.planfi.app/mcp and open the connector dialog, then paste & add.

A real conversation
you ↔ your agent · live
AI agent + planfi MCP
Live example — agent calls planfi tools to build a real FIRE plan
I'm 42, $380k in my 401k, earn $140k, and want to retire at 55.
Building your projection from those inputs…calledgenerate_financial_plan
You hit financial independence around age 55 — projected net worth of ~$2.4M, well past your FIRE target.
Stress-testing that plan against real market history…calledrun_backtesting
Your plan survived ~88% of historical market windows since 1871 — including the 1929 crash and the 1966 stagflation era.
Checking for tax-optimization opportunities before RMDs kick in…calledanalyze_roth_conversion
A 10-year Roth conversion ladder (ages 56–65) could cut your lifetime RMD taxes by roughly $47k.
Comparing account-drawdown orders for longevity…calledanalyze_withdrawal_strategy
Drawing taxable → traditional → Roth lasts the longest; RMDs are enforced starting at age 73.
Illustrative example. planfi exposes these tools over MCP — agents run historical backtesting (not Monte Carlo), tax, and withdrawal analysis.

How data is handled in agent mode: the numbers you give your agent pass through the planfi worker to compute your plan, but aren't stored — except an optional intake session held up to 24 hours so you can fill in your own data via a link. Nothing is kept after that. (The web app itself is local-only.)

1

Agent already has your numbers

Tell it your situation. It calls generate_financial_plan and hands back your full projection.

2

Rather type it yourself?

It calls start_plan_intake and sends a link. Fill out planfi, hit Send to Agent — done.

The 104 toolsagent.call(generate_financial_plan)

One agent, 104 deterministic endpoints. Tools chain into a full analysis, passing a reusable plan_handle so your model is sent once — not on every call.

generate_financial_plan
assemble_comprehensive_plan
generate_financial_insights
generate_action_plan
compare_plans
run_backtesting
get_savings_variations
get_asset_allocation
get_minimum_investment_required
analyze_healthcare_bridge
analyze_hsa_retirement
analyze_str_property
forecast_str_market
list_str_markets
analyze_roth_conversion
analyze_charitable_giving
analyze_opportunity_zone
analyze_withdrawal_strategy
analyze_cash_flow
analyze_debt_payoff
analyze_debt_consolidation
analyze_startup_equity
get_tax_contribution_limits
get_financial_definitions
check_model_completeness
start_plan_intake
get_completed_plan
analyze_advanced_taxes
analyze_savers_credit
analyze_72t_sepp
analyze_mega_backdoor_roth
analyze_funding_waterfall
analyze_equity_compensation
analyze_deferred_comp
analyze_inherited_ira
analyze_stock_concentration
analyze_nua
analyze_tax_optimization
analyze_rebalancing_trades
analyze_survivor_stress_test
analyze_insurance_needs
analyze_disability_income
analyze_education_account
analyze_529_optimization
analyze_college_aid_efc
analyze_education_credits
analyze_kiddie_tax
analyze_childcare_cost
analyze_childcare_tax_offsets
analyze_staggered_retirement
analyze_estimated_taxes
analyze_estimated_tax_annualized
analyze_bond_ladder
analyze_ibond_ladder
analyze_cash_ladder
analyze_protection_estate
analyze_portfolio_glidepath
analyze_accumulation_cone
analyze_fire_benchmark
analyze_momentum
analyze_milestones
analyze_already_won
solve_goal
analyze_iso_amt_crossover
analyze_fire_number
analyze_fire_variants
analyze_emergency_fund
analyze_spending_strategy
explain_plan_state
fork_plan
diff_plans
wait_for_completion
analyze_estate_exposure
analyze_divorce_qdro
optimize_social_security
analyze_guaranteed_income
analyze_defined_benefit
analyze_annuity_products
analyze_rmd
analyze_irmaa
analyze_medicare_enrollment
analyze_mortgage_prepay
analyze_auto_purchase
analyze_refinance
analyze_home_equity
optimize_multi_year_tax
analyze_property_return
analyze_rental_property
analyze_passive_losses
analyze_str_tax_loophole
analyze_cost_segregation
analyze_1031_exchange
analyze_relocation
analyze_multi_state_part_year_tax
analyze_self_employed_retirement
analyze_owner_cash_balance_db
analyze_student_loans
analyze_gain_harvesting
analyze_tax_loss_harvesting
analyze_tax_lots
analyze_rent_vs_buy
generate_financial_commentary
assemble_commentary_inputs
analyze_long_term_care
CoreRiskTax & decumulationUtilityIntake
iv.The skills

Free, open-source Claude Code skills.

Each skill turns Claude into a specialist that calls the planfi MCP for you — ask in plain English, get real numbers back. Install one, or the whole catalog: KameronKales/planfi-skills.

Financial Forecast
FIRE projections, backtesting, commentary, action plans — plus 529→Roth & childcare offsets, and the FAFSA Student Aid Index (SAI/EFC) estimator.
Comprehensive Plan
One full plan in a single deliverable — retirement/FIRE projection with Monte Carlo backtesting, 529 college funding, estate-tax exposure, and life/disability protection gaps, every number engine-computed.
FIRE Tracker
Are you already FI? Coast/Barista, peer benchmarks, milestones, and Lean/Fat/Barista variants.
Tax Optimizer
Roth conversions, mega-backdoor, tax-loss/gain harvesting, multi-year timing, 50-state brackets.
Retirement Income
Withdrawal order, Social Security timing, healthcare bridge, guaranteed income, bond & I-bond/TIPS ladders, long-term care, dynamic spending, RMD tax-torpedo & Medicare IRMAA tiers.
Debt & Cashflow
Household cash-flow & take-home (gross-to-net paycheck, free cash flow, savings rate, 50/30/20), avalanche/snowball, prepay-vs-invest, refinance, funding waterfall, debt consolidation, emergency fund, auto lease-vs-buy.
Equity Comp Planner
RSUs/ISOs/NSOs/ESPP, ISO/AMT crossover, single-stock concentration, and NUA on appreciated 401(k) employer stock (analyze_nua).
Deferred Comp Planner
NQDC / 409A defer-now-vs-take-now: deferral past 401(k)/415 caps, lump-vs-installment, bracket/IRMAA/Addl-Medicare smoothing, employer unsecured-creditor risk.
Portfolio Rebalancer
Cross-account rebalance trade list across taxable/IRA/Roth/401(k) — drift bands, tax-advantaged-first sells, loss harvesting (wash-sale aware) and new-contribution steering.
Startup Equity Planner
Pre-IPO equity: 83(b) early-exercise election + QSBS §1202 gain exclusion.
Rent vs Buy
Net worth both ways, opportunity cost, break-even appreciation — plus HELOC/cash-out/reverse mortgage.
Long-Term Rental Analyzer
Buy-and-hold after-tax: depreciation shelter, §1250 recapture, 1031 deferral, Schedule E P&L.
STR Investment Analyzer
Airbnb/VRBO: cash-on-cash, cap rate, break-even occupancy, hold-period return.
Self-Employed Planner
Solo 401(k)/SEP/SIMPLE, §199A QBI, S-corp salary tradeoff, quarterly estimated taxes.
Relocation Planner
State-tax arbitrage: income, property, estate + inheritance tax (PA/NJ/KY/IA/MD/NE) + cost of living on a move, plus the part-year residency / income-allocation transition year.
Divorce Financial Planning
Model the split: QDRO division of 401(k)/pension/IRA, after-tax equalization of Roth vs traditional vs taxable awards, the equalizing payment, pension PV split, home buyout vs §121-split sale, post-2019 alimony, MFJ→single shift, divorced-spouse Social Security.
v.Frequently asked

Questions you probably have.

Is planfi really free?+

Yes. No ads, no account, no monetization. We built it because high earners deserve better planning tools. It will always be free.

Can I use mega-backdoor Roth?+

Yes. Roth conversions, backdoor Roth, mega-backdoor (post-tax 401k contributions), and IRMAA optimization are all built in.

How does RSU concentration work?+

Model RSUs as a speculative asset, then run tax-loss harvesting and concentration sell-down analysis. The engine accounts for NIIT and AMT.

Can it model nonqualified deferred comp (NQDC / 409A)?+

Yes. For high-W2 execs, analyze_deferred_comp runs the defer-now-vs-take-now election: elective deferral of salary/bonus past the 401(k)/415 qualified-plan caps, lump-vs-installment distribution timing, bracket / IRMAA / 0.9% Additional-Medicare smoothing into low-income FIRE bridge years, and the employer unsecured-creditor risk (a 409A balance is an unsecured promise, not a funded account) — present-valued and risk-adjusted into a defer / take-now recommendation.

Can it model NUA (Net Unrealized Appreciation) on my 401(k) employer stock?+

Yes. For long-tenured high earners holding appreciated employer stock inside a 401(k), analyze_nua runs the IRC §402(e)(4) lump-sum in-kind distribution election: you pay ordinary income tax now on only the plan cost basis, and the appreciation is taxed at long-term capital-gain rates (0/15/20 + NIIT) when the shares are sold — versus rolling the whole balance to an IRA, where every future dollar is taxed at ordinary rates and is exempt from NIIT. It computes the NUA-vs-IRA-rollover breakeven ordinary rate, the 10% early-distribution penalty on the basis (never the appreciation), an optional Roth-conversion alternative, and an elect-NUA / roll-to-IRA recommendation.

Can it optimize my charitable giving?+

Yes. analyze_charitable_giving is a first-class charitable analyzer for high earners with giving intent or concentrated appreciated positions. It surfaces donor-advised-fund (DAF) bunching — clustering several years of gifts into one year to clear the standard deduction and itemize — qualified charitable distributions (QCD) at age 70.5+ to satisfy RMDs while excluding the amount from AGI (lowering IRMAA and Social-Security taxation), and donating long-term appreciated stock or RSUs in-kind to avoid capital-gains tax (plus NIIT) on the embedded gain AND take the full fair-market-value deduction, subject to the 60%-cash / 30%-appreciated AGI limits with 5-year carryforward. It returns the bracket-exact tax savings of each lever and a recommended strategy.

Can it model an 83(b) election or QSBS?+

Yes. For pre-IPO/startup equity, planfi models the irreversible 30-day 83(b) early-exercise election — the ordinary-income-to-LTCG conversion and the holding-clock start — and the §1202 QSBS gain exclusion of up to $10M or 10x basis, including the OBBBA tiered holding periods. These are the highest-leverage moves for founders and early employees, and they also fund C-corp business-owner exits.

Can it maximize my college education tax credits?+

Yes. analyze_education_credits optimizes the federal education tax credits per student: the American Opportunity Tax Credit (AOTC, up to $2,500/student — 100% of the first $2,000 + 25% of the next $2,000, 40% refundable, first 4 undergrad years) versus the Lifetime Learning Credit (LLC, 20% of up to $10,000 = $2,000 per RETURN, no year limit, grad/part-time). It computes the 2026 MAGI phase-out ($80k–$90k single / $160k–$180k MFJ) including the partial-credit band and the cliff above it, enforces the no-double-dipping rule (you can't claim a credit on the same expenses paid by a tax-free 529 distribution), runs the per-student AOTC-vs-LLC election with the LLC per-return cap, and recommends carving out $4,000 of expenses to pay out-of-pocket so you preserve the full AOTC. Give it your students and numbers and it returns the recommended credit per student, total household credit, the refundable/non-refundable split, and the 529 carve-out.

Is the Monte Carlo testing real?+

Yes. 150+ years of Shiller S&P 500 data. Every rolling window from 1871 to present. Sequence-of-returns risk, concentration risk, and outcome ranges.

Can my AI agent call this?+

Yes. The full MCP tool catalog, no auth required. Tell Claude your situation, it runs generate_financial_plan, and returns your full projection.

Can it build me a complete financial plan in one call?+

Yes. assemble_comprehensive_plan chains the engine end-to-end — accumulation/FIRE projection with Monte Carlo backtesting, 529 education funding status, estate-tax exposure, and insurance/protection gaps — into one cohesive deliverable. Say "build me a financial plan" with your numbers and Claude returns all four sections, every figure engine-computed.

Are there ready-made Claude Code skills?+

Yes — free, open-source, MIT-licensed. Each skill turns Claude into a specialist that calls the planfi MCP: Financial Forecast, Comprehensive Plan, FIRE Tracker, Tax Optimizer, Retirement Income (RMDs, IRMAA, and inherited-IRA 10-year drawdown), Debt & Cashflow, Equity Comp Planner, Deferred Comp Planner, Portfolio Rebalancer, Startup Equity Planner, Rent vs Buy, Long-Term Rental Analyzer, STR Investment Analyzer, Self-Employed Planner, Relocation Planner, and Divorce Financial Planning. Browse and install them from the catalog at github.com/KameronKales/planfi-skills, or grab one with `npx skills add holdequity/planfi-<name>`.

Can it analyze a rental or investment property?+

Yes. Model rental cash flow, short-term rentals (Airbnb/VRBO) with cash-on-cash, cap rate and break-even occupancy, and full hold-period return — own for N years, then sell at the appreciated value (or a price you set directly, say after a renovation), net of selling fees and remaining mortgage — for cash-on-cash, total return and annualized IRR. You can even buy in a few years and sell after a hold, with the proceeds folded back into your FIRE timeline. For buy-and-hold landlords it also runs the after-tax math: a Schedule E P&L (rent minus vacancy, opex, mortgage interest and 27.5-year straight-line depreciation), the depreciation tax shelter, ~25% Section 1250 depreciation recapture and long-term capital-gains tax at sale, and the deferral from a 1031 like-kind exchange.

Can it model the Saver's Credit or a 72(t)/SEPP early withdrawal?+

Yes. planfi computes the federal Saver's Credit (IRC §25B) — up to 50% of the first $2,000 of retirement contributions per filer for lower- and moderate-income savers, with the 50/20/10% AGI bands, the non-refundable tax-liability cap, and the student/dependent/under-18 eligibility gates — and folds the allowed credit into your accumulation-year federal tax. For pre-59½ access it also runs 72(t)/SEPP substantially-equal periodic payments under all three IRS methods (RMD, amortization, annuitization), the §72(t) maximum interest rate, the required commitment window (the longer of 5 years or age 59½), and the retroactive-penalty risk of breaking the schedule.

What about NIIT and AMT?+

Both included. 3.8% NIIT on investment income above thresholds. AMT phase-outs, state-specific taxes, and dual-state filers all supported.

How do I use it with dual income?+

Model each earner separately (age, retirement age, salary, 401k, IRA limits), and run scenarios for staggered retirement, spousal strategies, and income splitting.

Can I export my plan?+

Yes. JSON (raw data), PDF (full report), or markdown. Your data is always yours. Export any time, use it forever, even if the site goes away.

Does it handle estate tax?+

Yes. planfi projects your federal estate-tax exposure against the exemption — including the 2026 sunset — at the 40% top rate, with spousal portability and state estate and inheritance taxes layered in.

Can it optimize Social Security claiming?+

Yes. It estimates your PIA from AIME and the bend points, then compares claiming at 62, full retirement age, and 70 with breakeven analysis and spousal/survivor strategies.

Does it model state taxes?+

Yes — with real progressive brackets, not a flat rate. All 50 states + DC are modeled in full with both single and married-filing-jointly bracket tables, including California taxing RSU income and long-term capital gains as ordinary income and surcharges like the CA mental-health levy and the MA millionaire surtax.

Can it model a pension or annuity?+

Yes. For a defined-benefit pension it compares taking the lump sum vs the lifetime monthly — present value of each, the breakeven/longevity age, and the income floor the monthly buys. For immediate annuities it weighs a SPIA or QLAC against a DIY portfolio at your safe withdrawal rate, including the RMDs a QLAC defers. It also models accumulation-phase deferred products — fixed-indexed (FIA), buffered/floored (RILA), multi-year guaranteed (MYGA) and variable annuities with a GLWB rider — accounting for cap/participation/spread rates, rider fees and rollups, plus the non-qualified exclusion-ratio tax (IRC §72, so only the gain portion of each payout is taxed) and tax-free §1035 exchanges between contracts.

I inherited an IRA — how do I handle the 10-year drawdown?+

Yes. analyze_inherited_ira runs the post-SECURE-Act 10-year rule for a non-spouse beneficiary: it determines whether annual RMDs are also required in years 1-9 (required when the original owner had already reached their required beginning date, using the IRS single-life-expectancy divisor) versus only the year-10 empty rule (owner died pre-RBD, or a Roth). It then compares a naive lump-in-year-10 withdrawal against an even 10-year spread and a bracket-fill schedule, quantifying total federal tax across the window and flagging the year-10 cliff where deferring everything spikes one year into the top bracket plus NIIT and IRMAA. Traditional distributions are ordinary income; Roth distributions are tax-free but still subject to the 10-year empty rule.

Can it project my RMDs and Medicare IRMAA surcharges?+

Yes. The RMD readout projects your required minimum distributions (start age 73 or 75 under SECURE 2.0), the Roth-conversion runway before they begin, and whether your first RMD triggers a "tax torpedo" that bumps your marginal bracket. A separate IRMAA tool shows which Medicare income tier your MAGI lands in, the annual/monthly Part B/D surcharge, and the headroom to the next income cliff (using the 2-year lookback).

Is planfi a complete plan for high earners?+

It now covers the gaps that kept high-earner plans incomplete — estate-tax exposure, Social Security claiming, progressive brackets for all 50 states + DC, guaranteed-income elections (pension lump-sum vs lifetime, SPIA/QLAC vs DIY), long-term care (self-insure vs LTC/hybrid policy), dynamic spending guardrails, and home-equity extraction — on top of a best-in-class accumulation and tax engine. That now includes defined-benefit pensions: analyze_defined_benefit values the lump-sum vs lifetime-annuity decision (implied return, breakeven age, present value), the joint-and-survivor election, COLA vs non-COLA real erosion, and the early-vs-normal actuarial reduction — folding the resulting income floor into the forecast like Social Security.

vi.On privacy

Your financial data should stay yours.

Local-first by default

In the web app, every calculation happens in your browser. Income, savings, net worth — none of it is uploaded.

No account, no tracking

Open the app and start planning. No email, no password, no ads following you around the internet.

Export & keep forever

Download any plan as JSON in one click. Your plans survive even if the site goes away — re-import anytime.

Delete means deleted

Clear your browser storage and the data vanishes. We can't recover it, restore it, or keep a backup.

Your lock, your key

Enable 2FA and your data encrypts locally. Unlock with a fingerprint or security key — not even we can read it.

Forever free, no strings

This tool will never have ads, a paywall, or require an account. We don't monetize. Built in public.