Retirement planning that
actually gets the math right

Most tools give you a single guess. We run thousands of simulations across market regimes, tax scenarios, and spending strategies — so you get a real answer.

Your retirement plan is probably wrong

Most retirement calculators use oversimplified math that hides real risk. Here's what they get wrong.

Single-scenario projections

They show you one line going up. But markets don't move in straight lines — a crash in year two hits differently than a crash in year twenty.

Taxes are an afterthought

Withdrawing from a 401(k) vs. a Roth vs. a brokerage account has vastly different tax consequences. Most tools treat all dollars the same.

One-size-fits-all advice

"Hold 60/40 and withdraw 4%." That might work for some. But your situation — your accounts, your income timing, your risk tolerance — is unique.

Thousands of futures,
one clear picture

We simulate your plan across thousands of possible market paths — crashes, booms, stagflation, everything. You see the full range of outcomes, not a single guess. The result: a probability-weighted answer to "Will my money last?"

Years in Retirement Portfolio Value 0 5 10 15 20 25 80% range 50% range Median

Find the strategy that
fits your life

Our optimizer evaluates hundreds of strategy combinations — allocation glide paths, bond tents, bucket strategies — and maps out the efficient frontier. You see the tradeoff between safety and growth, and pick the point that's right for you.

Median Terminal Wealth Success Rate (%) $0 $500k $1M $1.5M 60 70 80 90 100 Fixed Glide Bond Tent

When can you actually
afford to retire?

Explore every combination of retirement ages for you and your partner. The heatmap shows exactly where the math works — and where it doesn't. No more guessing if "one more year" actually makes a difference.

Your Retirement Age Partner's Age

Every dollar withdrawn
in the right order

Our engine models federal tax brackets, capital gains, IRMAA surcharges, RMDs, and Social Security taxation. It sequences withdrawals across your accounts to minimize the lifetime tax bill — not just this year's.

Roth IRA Tax-free 401(k) / IRA Tax-deferred Brokerage Taxable HSA Tax Engine Brackets · IRMAA RMDs · Cap Gains You $$ Optimized sequence

Three steps to a real answer

1

Tell us about your finances

Accounts, income sources, planned expenses, Social Security — enter what you know. We handle the complexity.

2

We run the math

Thousands of Monte Carlo simulations across market regimes, tax rules, and withdrawal strategies. In seconds.

3

Get a real answer

See your probability of success, explore what-if scenarios, and find the strategy that fits your life — backed by real numbers.

Not another retirement calculator

Most tools oversimplify. Here's what qtvia does that they don't.

Capability Typical Calculators qtvia
Monte Carlo simulation Partial
Tax-aware withdrawal sequencing
Federal brackets, IRMAA, NIIT, RMDs
Strategy optimization (glide paths, bond tents)
Couples with survivor modeling Partial
What-if retirement age analysis
Roth conversion strategy
Social Security claiming optimization Partial
Market regime modeling

Common questions

Most brokerage calculators use simple linear projections or basic Monte Carlo with a single average return. qtvia models tax brackets, withdrawal sequencing, market regimes, and strategy optimization. The things that actually determine whether your money lasts.

No. qtvia is designed to give you the same quality of analysis that a high end planner would, without the cost. That said, it's a tool for informed decision making, not personalized financial advice.

Your data is encrypted in transit and at rest. We never share or sell your information. You can delete your account and all data at any time.

We're still finalizing pricing. Join the waitlist and we'll keep you posted.

Yes. qtvia models both partners independently: separate accounts, separate Social Security, separate retirement dates, with full survivor transition modeling if one partner passes first.

No problem. You enter each account separately: 401(k), IRA, Roth, brokerage, HSA, regardless of where they're held. qtvia optimizes across all of them.