Retirement9 min read·Updated July 14, 2026

How Long Will $500,000 Last in Retirement? Year-by-Year Breakdown (2026)

A $500,000 nest egg can fund 18 to 33+ years of retirement depending on how fast you draw it down. Here are the numbers for every common scenario.

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The Short Answer: 18 to 33+ Years

The quick answer

At a 4% annual withdrawal ($20,000/year), a $500,000 portfolio invested in a balanced 60/40 mix historically lasts about 30 years. Withdraw $30,000/year (6%) and it runs out in roughly 18–20 years. At $25,000/year (5%), expect 23–26 years. The three variables that matter most: your withdrawal rate, your investment return, and whether Social Security covers part of your expenses.

Key takeaways
  • $500,000 ÷ 4% = $20,000/year ($1,667/month) — the classic "safe" drawdown that has survived every historical 30-year period since 1926.
  • The average Social Security benefit in 2026 is $1,976/month (SSA, 2026), so a retiree collecting benefits only needs the $500k to cover the gap between Social Security and total spending.
  • Inflation is the hidden drain: at 3% average inflation, $20,000 in today's dollars buys only $14,880 in purchasing power after 10 years.
  • A 1% reduction in annual investment fees can extend portfolio life by 3–5 years at moderate withdrawal rates — fee drag compounds just like returns do.
Annual withdrawalMonthly income% of $500kEstimated years the money lasts*
$15,000$1,2503.0%33+ years
$20,000$1,6674.0%~30 years
$25,000$2,0835.0%~23 years
$30,000$2,5006.0%~18 years
$35,000$2,9177.0%~15 years
$40,000$3,3338.0%~12 years
*Assumes a 60/40 stock/bond portfolio returning ~6% nominal (historical average), 3% inflation, and fees of 0.2%. Actual outcomes vary with sequence of returns. Based on historical simulations using Ibbotson SBBI data, 1926–2024.
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Five Factors That Shift the Timeline by Years

The table above is a starting point, not a forecast. These five factors routinely add or subtract 5–10 years from portfolio life:

1. Sequence-of-Returns Risk

If the stock market drops 30% in your first two years of retirement, your $500,000 becomes $350,000 before you've even withdrawn much. Pulling $20,000/year from a depleted base accelerates the drain. Trinity Study data shows that identical average returns can produce vastly different outcomes depending on when the bad years fall. A retiree who started in 2000 (dot-com crash) had a fundamentally different experience than one who started in 2009 (bull market), even at the same withdrawal rate. This is the single biggest reason a fixed percentage isn't the full answer.

2. Social Security Timing

Claiming Social Security at 62 versus 70 changes the monthly benefit by roughly 77% — about $1,400/month versus $2,480/month on a $75,000 career average salary (see our full Social Security breakdown). Every dollar Social Security covers is a dollar your $500k doesn't need to provide. Delaying to 70 while drawing down savings from 62–70 often extends total portfolio life, because the higher guaranteed income permanently reduces the withdrawal rate on your investments.

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3. Inflation

The Federal Reserve targets 2% annual inflation, but the 2021–2023 period showed that actual inflation can surge well above that. At 3% average inflation, $20,000 in year one needs to become $26,878 by year 10 just to buy the same goods. If you don't increase withdrawals for inflation, you maintain the portfolio but quietly accept a falling standard of living. The Inflation-Adjusted Return Calculator shows exactly how inflation erodes purchasing power at any rate.

4. Investment Allocation

A 100% bond portfolio at today's yields (~4.5%) on $500,000 generates $22,500/year but offers minimal growth to offset inflation. A 100% stock portfolio has historically returned 10% nominal but with drawdowns that can exceed 50%. The research consensus — including the original Trinity Study and updated work by Wade Pfau at the American College of Financial Services — suggests a 50/60% equity allocation optimizes longevity for 25–30 year horizons.

5. Fees and Taxes

A 1% annual advisory fee on $500,000 costs $5,000 in year one — that's 25% of a $20,000 annual withdrawal going to fees rather than spending. Over 25 years, fee drag at 1% versus 0.2% costs roughly $60,000–$80,000 in cumulative portfolio value. Similarly, withdrawals from traditional IRAs and 401(k)s are taxed as ordinary income, while Roth withdrawals are tax-free. The tax treatment changes how much you actually keep from each dollar withdrawn.

The real question isn't 'how long' — it's 'how much can I safely spend'

Most retirees don't deplete savings in a straight line. They spend more in early retirement (travel, home projects), less in their mid-70s, and then more again if they need care in their 80s. Planning for a flat withdrawal rate misses this reality. The safe withdrawal rate guide covers dynamic strategies that adjust spending to market conditions.

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Real-World Scenarios: $500k Plus Social Security

Most Americans don't live on savings alone. About 97% of people 65 and older receive Social Security (SSA Quick Statistics, 2025). Here's how $500,000 performs when paired with typical benefit amounts:

ScenarioMonthly Social SecurityMonthly gap to cover from $500kAnnual draw on $500kHow long $500k lasts
Single, average benefit, $3,500/mo spending$1,976$1,524$18,28833+ years
Single, average benefit, $4,500/mo spending$1,976$2,524$30,288~19 years
Couple, both average, $5,000/mo spending$3,952 combined$1,048$12,57633+ years
Couple, both average, $6,500/mo spending$3,952 combined$2,548$30,576~19 years
Single, delayed to 70, $4,000/mo spending$2,480$1,520$18,24033+ years
Social Security figures based on 2026 average retired worker benefit of $1,976/month (SSA). Portfolio assumes 60/40 allocation, 6% nominal return, 3% inflation. All figures in today's dollars.

The pattern is clear: for retirees with average Social Security benefits and moderate spending, $500,000 is often sufficient for a 30-year retirement. The risk zone is when monthly spending exceeds $4,500 for a single person or $6,500 for a couple, pushing the annual draw above 6% of the portfolio.

The couple advantage is significant

Two Social Security checks totaling $3,952/month cover most of a moderate couple's fixed expenses. The $500,000 portfolio then only needs to cover discretionary spending and inflation adjustments — a much lighter lift than funding all expenses for a single retiree. If you're planning as a couple, the Retirement Planner lets you model both incomes and a joint portfolio.

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Four Strategies to Make $500,000 Last Longer

If the numbers above feel tight, these research-backed approaches extend portfolio life without requiring more savings:

1. Use a Dynamic Withdrawal Strategy

Instead of withdrawing a fixed dollar amount, adjust spending based on portfolio performance. The "guardrails" method — cutting withdrawals by 10% when the portfolio drops below a floor and increasing by 10% when it exceeds a ceiling — historically improved 30-year success rates from 82% to 95% in Monte Carlo simulations (Guyton-Klinger research). Your spending flexes, but your money lasts.

2. Delay Social Security to 70

Every year you delay Social Security past 62 increases your benefit by approximately 6–8% per year, and benefits are inflation-adjusted for life. Using $500,000 to bridge the gap from 62 to 70 costs roughly $120,000–$160,000 in early drawdowns but buys a permanently higher income floor. For someone expecting to live past 80, the breakeven math strongly favors delaying. Our Social Security benefit guide shows the exact dollar difference at each claiming age.

3. Minimize Fees

Moving from a 1% advisory fee to a 0.15% index fund portfolio saves roughly $4,250/year on $500,000. Over 25 years of compounding, that difference preserves $60,000–$80,000 in portfolio value — effectively adding 3+ years of withdrawals at a 4% rate. Vanguard, Fidelity, and Schwab all offer total market index funds with expense ratios under 0.05%.

4. Consider Partial Annuitization

Putting $100,000–$150,000 of the $500,000 into a single-premium immediate annuity creates a guaranteed income floor regardless of market performance. This reduces the investable portfolio to $350,000–$400,000 but also reduces the annual withdrawal needed from investments, lowering sequence-of-returns risk. Our annuity payout guide shows exactly what different premium amounts generate in monthly income.

How we researched this

All projections in this guide use historical return data from the Ibbotson SBBI yearbook (1926–2024), assuming a 60/40 U.S. stock/bond allocation with annual rebalancing. Inflation is modeled at 3% unless otherwise noted. We do not use Monte Carlo simulation for the primary tables — we use worst-case historical 30-year periods. The calculator linked above runs both historical and adjustable-assumption models. Numbers are verified against our How Long Will My Money Last calculator formulas.

Sources & further reading
  1. 1Retirement Topics — Required Minimum Distributions (RMDs)IRS
  2. 2The Trinity Study RevisitedJournal of Financial Planning
  3. 3Monthly Statistical Snapshot — Social SecuritySocial Security Administration
  4. 4Safe Withdrawal Rates: A Guide for Early RetireesWade Pfau, American College of Financial Services
  5. 5Ibbotson SBBI 2024 Classic YearbookMorningstar

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Frequently asked questions

At a 4% withdrawal rate ($20,000/year), $500,000 invested in a balanced portfolio historically lasts about 30 years. At 5% ($25,000/year) it lasts roughly 23 years, and at 6% ($30,000/year) about 18 years. Social Security income reduces the amount you need to withdraw, extending portfolio life significantly.
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About the authors
We Are Calculator Editorial

We are a research-first finance team. We do not sell leads, we do not rank lenders, and we have no affiliates pulling our recommendations. Every guide is built by pairing primary sources — the IRS, CFPB, Federal Reserve, Freddie Mac, Statistics Canada, OSFI — with the same calculators you can run yourself.

Last reviewed and updated July 14, 2026. Rates, rules, and limits are time-sensitive — we re-verify source data on a rolling 60-day cycle and note changes in the section bodies.

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