FinanceCalcs
Retirement Withdrawal Calculator
Find out how long your retirement savings will last — or how much you can safely withdraw each year. Model fixed dollar, fixed percentage, and inflation-adjusted withdrawal strategies with year-by-year projections.
The decumulation companion to your savings calculators. Enter your portfolio, spending needs, and expected return to see your runway.
Retirement Withdrawal Calculator
$0 portfolio | 5% return
Portfolio lasts: --
- Portfolio Balance
- Annual Withdrawal
Withdrawal Rate Scenarios — Same Portfolio
| Annual Withdrawal | Withdrawal Rate | Lasts Until Age | Portfolio Duration | Balance at Age 85 | Verdict |
|---|
Key Insights
"The goal is not to die with the most money — it's to never run out of it."
- Retirement Planning Principle
How retirement withdrawal works
Decumulation — the process of drawing down a retirement portfolio — is the mirror image of accumulation. Instead of deposits growing the balance, regular withdrawals shrink it. Whether the portfolio lasts a lifetime depends on three factors: how much you withdraw, what the portfolio earns, and how long retirement lasts.
The withdrawal rate — annual withdrawal as a percentage of portfolio — is the primary lever. The famous 4% rule (from the Trinity Study) found that a portfolio of 50–75% stocks withdrew at 4% survived 30-year retirements in ~95% of historical scenarios. But 4% is not a guarantee — sequence of returns, inflation, and portfolio composition all matter.
This calculator also models additional income sources (Social Security, pension, rental income) that reduce the amount the portfolio must cover. A $1,200,000 portfolio needing to fund $60,000/year is a 5% withdrawal rate. But if Social Security covers $20,000/year starting at 67, the portfolio only funds $40,000 — a 3.3% rate that changes the sustainability picture dramatically.
lightbulb Withdrawal Rate Guide
| Withdrawal Rate | 30-yr Sustainability | Note |
|---|---|---|
| 3.0% | ~99% success | Very conservative — legacy likely |
| 3.5% | ~97% success | Recommended for 40+ yr retirements |
| 4.0% | ~95% success | Standard "4% rule" — 30-yr horizon |
| 4.5% | ~85% success | Moderate risk — some flexibility needed |
| 5.0% | ~70% success | High risk — portfolio may deplete |
| 6.0%+ | <50% success | Likely portfolio depletion in 25 yrs |
Historical success rates based on US market data 1926–2020. Lower rates have higher certainty but require a larger portfolio or lower spending.
Retirement Withdrawal FAQs
How much can I safely withdraw from retirement savings?
The standard guidance is 4% of your starting portfolio per year (inflation-adjusted). For a $1,000,000 portfolio that's $40,000 in year one, rising with inflation each year. For retirements longer than 30 years (early retirees), 3.0–3.5% is more conservative. For retirements of 20 years or less, 5% may be sustainable depending on the portfolio allocation.
What is sequence of returns risk?
The danger that poor market returns early in retirement — before your portfolio has had time to recover — permanently impair your ability to sustain withdrawals. A 30% market drop in year 2 at a 4% withdrawal rate depletes the portfolio much faster than the same drop in year 20. This is why a "bond tent" (holding extra bonds at retirement age, then gradually shifting back to stocks) is a common risk mitigation strategy.
Should I take Social Security early or late to extend my portfolio?
Delaying Social Security typically reduces portfolio withdrawals in later years, which allows the portfolio to grow longer. Taking SS at 62 means lower SS income but less portfolio drawdown early. Taking SS at 70 maximizes SS income but means more portfolio drawdown in years 62–70. This calculator models the start age — compare both scenarios to see the portfolio impact.
What is the "guardrails" withdrawal strategy?
A flexible withdrawal approach: start at the standard rate, but reduce withdrawals 10% if the portfolio drops below a lower guardrail, and allow an increase if it rises above an upper guardrail. This adaptive strategy has historically sustained higher average withdrawals than fixed 4% because it flexes during bad markets rather than locking in a path that depletes the portfolio.
Terminology
Decumulation
The phase of retirement in which you systematically draw down your accumulated portfolio to fund living expenses. The mirror image of the accumulation phase. The goal is to balance income needs against portfolio longevity.
Safe Withdrawal Rate (SWR)
The percentage of an initial portfolio that can be withdrawn annually (inflation-adjusted) with high historical confidence of not depleting the portfolio over the retirement horizon. The 4% rule is the benchmark SWR for 30-year retirements.
Sequence of Returns Risk
The risk that the order of investment returns — not just the average — significantly impacts retirement outcomes. Poor early returns combined with ongoing withdrawals lock in losses before recovery can occur. The same average return in a different order produces dramatically different results.
Portfolio Longevity
How many years a portfolio can sustain a given withdrawal schedule before depletion. The key output of this calculator. A portfolio that lasts to age 92 at your spending level provides high confidence; one that depletes at 78 signals a need to reduce spending or increase income.
Required Minimum Distributions (RMDs)
Mandatory annual withdrawals from traditional IRAs and 401(k)s starting at age 73 (under current law). Calculated as the account balance divided by an IRS life expectancy factor. RMDs force withdrawals whether or not you need the income — they can be spent or reinvested in a taxable account.
Fixed vs. Variable Withdrawal
Fixed withdrawals (the 4% rule's inflation-adjusted dollar amount) provide spending certainty but risk depletion in bad markets. Variable withdrawals (a fixed percentage of the current balance) never deplete the portfolio but produce volatile income. Most retirees benefit from a hybrid — a baseline fixed amount plus flexibility to reduce spending in down markets.
Disclaimer: All calculators on this site are provided for informational and educational purposes only. Results are estimates based on the inputs you provide and mathematical formulas — they do not account for taxes, fees, inflation, risk, or other real-world factors that may affect financial outcomes. Past performance does not guarantee future results. Nothing on this site constitutes financial, investment, legal, or tax advice. Always consult a qualified professional before making financial decisions.
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