Quick answer: There is no single lifespan for a $500,000 retirement portfolio. In this simplified calculator, a fixed $20,000 annual withdrawal and a constant 5% annual return do not deplete the portfolio within 50 years. Real outcomes can be shorter because returns vary and withdrawals often rise with inflation; taxes, fees, healthcare costs, and sequence-of-returns risk also matter.
Under this page's simplified fixed-dollar model, a $500,000 portfolio earning a constant 5% annually does not deplete within 50 years when withdrawals are 3%, 4%, or 5% of the original balance. That is not a forecast: actual returns vary, inflation can increase withdrawals, and taxes and fees reduce results. Use the return control to test less favorable assumptions.
A 4% first-year withdrawal from $500,000 is approximately $1,667 per month ($20,000 per year) before taxes and fees. Add your own expected Social Security, pension, or other guaranteed income to estimate total monthly cash flow; the appropriate amount depends on household expenses and whether withdrawals increase with inflation.
$500,000 may be sufficient for some households and inadequate for others. At a 4% first-year withdrawal it provides about $20,000 before taxes and fees. The answer depends on retirement age, household spending, actual Social Security and pension income, healthcare costs, inflation, investment risk, and desired legacy.
Sequence of returns risk is the danger that a market downturn early in retirement — when you're actively withdrawing — can permanently reduce your portfolio. For a $500K portfolio, a 30% market drop in year 1 followed by continued withdrawals could reduce the portfolio to a level it never fully recovers from. This risk is why many advisors recommend keeping 1–2 years of expenses in cash or stable assets at retirement.
Connect with a licensed SafeMoney advisor who specializes in retirement income planning and guaranteed income solutions. Or try the How Long Will My Money Last calculator.