Quick answer: A $300,000 retirement portfolio generates approximately $12,000 per year ($1,000/month) using the 4% withdrawal rule. At a 5% average annual return, it lasts roughly 20–22 years — enough to carry a retiree from age 65 to the mid-80s.
At a 4% annual withdrawal rate ($12,000/year), a $300,000 portfolio at 5% annual return lasts approximately 21 years. At a 3% withdrawal rate ($9,000/year), it can last 30+ years. At a 5% withdrawal rate ($15,000/year), it lasts about 15 years.
Using the 4% withdrawal rule, $300,000 generates approximately $1,000 per month ($12,000/year). This is typically supplemented by Social Security income — the average Social Security benefit is around $1,700/month — which significantly extends the portfolio's useful life.
$300,000 alone is rarely enough for a comfortable retirement for most Americans. However, combined with Social Security benefits ($1,000–$2,500+/month depending on your record), pension income, or part-time work, $300,000 can serve as a meaningful supplement. In lower cost-of-living areas, particularly in the Southeast or Midwest, $300K + full Social Security can cover basic expenses.
Most financial planners recommend a 3–4% annual withdrawal rate for portfolios expected to last 25–30 years. At 3%, $300,000 yields $9,000/year ($750/month). This conservative rate significantly extends portfolio longevity and provides a cushion against market downturns in early retirement years.
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.