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Process

How our calculator works

Simple steps to answer "can I retire?" with our free forecast.

Your privacy matters

We only need your email to save your progress. No name, address, or Social Security number required — just the financial details you choose to share for your projections.

Retired couple enjoying a peaceful moment

Household

2 People

Step 1

Tell us about your household

Answer a handful of plain-English questions about income, savings, debts, and spending. Singles and couples are both supported, and you can finish in about five minutes.

Step 2

See your Base Case instantly

We turn your answers into a 50-year net-worth and cashflow forecast, complete with Social Security, taxes, and healthcare. You see immediately whether you're on track, need review, or should take action.

Step 3

Explore what-ifs

Want to retire early, take a sabbatical, or model a windfall? Duplicate your Base Case, change one or two assumptions, and compare outcomes side-by-side. Pro adds Monte Carlo confidence bands so you can stress-test the plan.

Step 4

Adjust anytime

Update inputs, tweak scenarios, or rerun Monte Carlo whenever life changes. Everything recalculates automatically, so you always know where you stand.

The difference fidser. makes

See how retirement planning transforms with the right tools.

Before fidser.
After fidser.
Spreadsheet chaos
Clean, visual dashboard
"Am I saving enough?"
A success-probability number
Guessing on Social Security
Compare 81+ claiming scenarios
Unknown tax impact
Year-by-year tax projections
One rigid plan
Side-by-side what-if scenarios
Hoping for the best
Monte Carlo stress testing

Ready to get started?

Get clarity in five minutes. Free forever, no credit card.

Start your free forecast