Build Your Retirement Income Plan — and See If It Works.

Know where your income comes from, how long your money lasts, and how every decision changes the picture.

Retire early, buy a home, take a sabbatical — see the financial impact before you decide.

Try the Free Calculator

Taxes. Healthcare. Withdrawals. Real answers.

Will My Money Last?

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Assumptions
7% return 3% inflation Plan to age 90
Will My Money Last?
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at age 90
in today's dollars
This estimate uses a flat tax rate. Your full projection depends on your state, filing status, account types (Roth vs. Traditional), healthcare costs, and Social Security taxation. Build your full retirement plan — with taxes, healthcare, and scenarios →

Retirement Planning, Built In

Lumifin doesn't stop at projections. It models the strategies that protect and grow your wealth through retirement.

Roth Conversion Strategy

Convert Traditional IRA funds to Roth at the right tax bracket. See how strategic conversions grow your ending balance by reducing future tax drag.

Asset Allocation

Adjust your stock-to-bond mix and find the sweet spot between peace of mind and maximizing growth.

Withdrawal Strategy

Traditional first? Roth first? Proportional? Lumifin suggests the optimal withdrawal order to make your money last longer.

See How Every Decision Changes Your Number

Every major life choice shifts your financial future. Lumifin models each one so you decide with clarity, not guesswork.

Retire 5 Years Earlier

Retire at 50 instead of 55? See exactly how it impacts your ending balance — so you can decide if it's worth it.

Ending balance drops ~$340K

Reduce to 1 Income

What if one partner stops working? Model the income change and see how it affects your financial future.

Ending balance drops ~$220K

Buy a Home

A $200K down payment is a one-time hit — but it permanently changes your trajectory. See the trade-off clearly.

Ending balance drops ~$150K

Built from the spreadsheet that helped our founder's family go from two incomes to one with confidence.

Model Your Own Scenarios

The Details That Matter

Spreadsheets guess. Lumifin models the real-world complexity that actually determines whether your plan works.

Tax Modeling

Federal and state taxes, filing status, capital gains — Lumifin calculates your actual tax burden, not a flat estimate.

Healthcare Costs

Pre-65 premiums, ACA vs. employer coverage, Medicare after 65 — healthcare is the biggest wildcard in early retirement. Lumifin models it year by year.

Year-by-Year Projections

See exactly how your assets, income, taxes, and spending play out every year from now through retirement and beyond.

Go Beyond the Calculator

The full app models income changes, expense events, and what-if scenarios — showing exactly how each one impacts your retirement plan.

$249 / year — first 100 users
30-day money-back guarantee Full access, one plan
Launching June 1 — join the waitlist to lock in your spot and price