Die with Zero Calculator
Calculate how to draw down principal safely to hit zero at life expectancy.
How It Works
Enter current age, life expectancy, savings, expected return, bequest, and inflation rate. The tool plans annual spending to deplete savings by end of life. Inspired by Bill Perkins, enter savings, life expectancy, expected return, inflation, and desired bequest. The tool computes inflation adjusted annual spending that depletes balance to the bequest by end of life. A 60 year old with $800,000, life expectancy 90, 6% return, 3% inflation, and zero bequest might spend roughly $48,000 year one rising with inflation. Subtract expected Social Security present value from required portfolio savings before annuity calculation for cleaner result. Enter age, net worth, annual spending, expected return, and legacy target percent to see optimal drawdown path toward zero at life expectancy.
Review annual withdrawal amount, year by year balance trajectory, depletion age, and total amount withdrawn over your lifetime. Setting bequest to zero maximizes lifetime consumption. A positive bequest reduces annual withdrawals to preserve inheritance for heirs. Year by year table shows balance path. Depletion age should match life expectancy when bequest target is met exactly. Toggle bequest from zero to $100,000 to see annual spending reduction tradeoff for inheritance goals. Die with zero philosophy trades legacy for lifetime consumption: lower legacy percent raises annual spend recommendation.
withdrawals to preserve inheritance for heirs. Die with zero philosophy trades legacy for lifetime consumption: lower legacy percent raises annual spend recommendation. Setting bequest to zero maximizes lifetime consumption. A positive bequest reduces annual withdrawals to preserve inheritance for heirs.
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Step by step
- Enter age, life expectancy, savings, and return assumption
- Review annual withdrawal and year by year projection
- Adjust bequest and inflation to optimize spending
Worked example
Example scenario for Die with Zero Calculator: $800,000,, 6%, 3%. Enter those values above to reproduce the walkthrough described in How it works.
Adjust one input at a time to see sensitivity.
When to use this calculator
Reach for Die with Zero Calculator when calculate how to draw down principal safely to hit zero at life expectancy..
Common mistakes
Confirm tickers, percentages, and dates before acting.
Running a single baseline scenario ignores tail risks.
The Formula
Annual Withdrawal = (Savings - Bequest / (1+r)^years) / annuityFactor(r, years). AnnuityFactor = (1 - (1+r)^-years) / r. Withdrawal grows by inflation each year. Balance depletes to bequest by life expectancy.
Inflation adjusted withdrawals. Bequest honored at end of projection. Annuity factor ensures full depletion. Fixed return path ignores sequence risk. Pair with Monte Carlo tool for probability based planning. Longevity risk beyond life expectancy table requires manual buffer in bequest field. Fixed return path ignores sequence risk. Pair with Monte Carlo tool for probability based planning. Life expectancy is average not guaranteed: conservative planners add five to ten years to horizon input. Fixed return path ignores sequence risk. Pair with Monte Carlo tool for probability based planning. Life expectancy is average not guaranteed: conservative planners add five to ten years to horizon input. Fixed return path ignores sequence risk. Pair with Monte Carlo tool for probability based planning.
Limitations and assumptions
Inflation adjusted withdrawals. Bequest honored at end of projection. Annuity factor ensures full depletion. Fixed return path ignores sequence risk. Pair with Monte Carlo tool for probability based planning. Longevity risk beyond life expectancy table requires manual buffer in bequest field. Life expectancy is average not guaranteed: conservative planners add five to ten years to horizon input. Die with Zero Calculator does not replace personalized advice.
Key terms
- How is the annual withdrawal calculated
- The tool calculates an annuity payment that draws down savings to exactly a specified bequest by life expectancy, factoring in expected return and inflation adjusted withdrawals.
- What is the bequest present value
- Annual Withdrawal = (Savings - Bequest_PV) / annuityFactor(r, remaining years).
- Model assumption
- Each year the withdrawal increases by the inflation rate so spending power is maintained.
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FAQ
How is the annual withdrawal calculated?
The tool calculates an annuity payment that draws down savings to exactly a specified bequest by life expectancy, factoring in expected return and inflation adjusted withdrawals. Annuity math spreads spending evenly in present value terms while nominal withdrawals rise with inflation each year. Social Security and pensions reduce required portfolio draw: subtract guaranteed income before entering savings. Longevity risk means outliving zero target is catastrophic: pad spending plan with floor from annuities or delayed Social Security.
What is the bequest present value?
Annual Withdrawal = (Savings - Bequest_PV) / annuityFactor(r, remaining years). Bequest_PV discounts the desired bequest to present value using the expected return rate. Bequest present value discounts the target inheritance back to today using your return assumption before computing spendable amount. Larger bequest suits heirs or charity: model tradeoff explicitly rather than defaulting to maximum spending. Health spikes in final years may exceed smooth spending curve: keep unmodeled reserve for long term care outside optimizer.
How does inflation adjustment work?
Each year the withdrawal increases by the inflation rate so spending power is maintained. Balance = Balance × (1 + r) - Withdrawal, year after year until depletion. Real spending power stays flat when withdrawals grow exactly with inflation. Higher inflation with fixed nominal spending erodes lifestyle. Medical inflation may exceed CPI: stress test inflation 2 points above baseline for conservative planning.
Should I set the bequest to zero?
A bequest of zero maximizes lifetime spending. Setting a positive bequest reduces annual withdrawals to preserve an inheritance. Depletion age shows when the balance drops near the bequest. Many retirees underspend relative to capacity due to fear of outliving assets. Zero bequest shows the upper bound of sustainable spending. Charitable bequests can be modeled as positive bequest reducing spendable amount while funding legacy goals. Couples should run joint life expectancy and survivor spending scenarios outside single life table defaults. Real spending should track inflation: rerun with higher annual spending when healthcare share of budget rises with age.
How do I explore different scenarios?
Adjust life expectancy, expected return, inflation, and bequest amount. Higher returns or shorter life expectancy increase annual spending. Inputs are saved locally. Lower expected return by 1 to 2 points to stress test longevity risk from poor market decades. Compare annual withdrawal to 4% rule benchmark on same inputs for familiar reference point. Giving while living shifts legacy target: model charitable gifts as spending spikes in high energy years.
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More calculators available on portfolios.tools for retirement planning, portfolio analysis, and options. Compare withdrawal rules with Dynamic SWR Calculator. Test survival odds with Monte Carlo FIRE Simulator. Model post tax income with Post Retirement Tax Calculator. Compare rigid 4% rule with Dynamic SWR Calculator. Model tax on withdrawals with Post Retirement Tax Calculator. Explore geographic spending arbitrage with Geoarbitrage Calculator when planning drawdown lifestyle. Dynamic SWR Calculator shows guardrail spending rules when you want market responsive drawdown instead of fixed glide.