To retire at 55 with $60,000/year in expenses, you need $1.8–$2.5 million using a 2.5–3.5% withdrawal rate (the standard 4% rule is too aggressive for 40-year retirements). At $80,000/year: $2.3–$3.2 million. At $100,000/year: $2.9–$4 million. Social Security won't start for 7–15 more years.
Retiring at 55 is genuinely achievable — but the math is harder than retiring at 65. You face a longer withdrawal period, no Medicare until 65, no Social Security until 62 at the earliest, and possible early withdrawal penalties on retirement accounts.
Why the 4% Rule Does Not Fully Apply at 55
The 4% rule was designed for 30-year retirements (retiring at 65). At 55, you may need your portfolio to last 40 years. Research from William Bengen and subsequent studies suggests a 3.5% withdrawal rate for 40-year periods has roughly the same historical success rate as 4% for 30 years. Use 3–3.5% for planning.
How Much You Need by Annual Expenses
- •$40,000/year → $1.14M (at 3.5%) to $1.6M (at 2.5%)
- •$60,000/year → $1.71M to $2.4M
- •$80,000/year → $2.29M to $3.2M
- •$100,000/year → $2.86M to $4.0M
- •$120,000/year → $3.43M to $4.8M
Run Your Retirement Number
The Bridge Years: Ages 55–62
From 55 to 59½, you cannot withdraw from a 401(k) or IRA without a 10% penalty (with exceptions). From 59½ to 62, you can withdraw but Social Security has not started. From 62 to 65, Social Security is available but Medicare is not. This creates a layered planning challenge:
- 1.Ages 55–59½: live off taxable brokerage accounts, Roth contributions (not earnings), or use the Rule of 55 if you left your employer that year
- 2.Ages 59½–62: begin drawing from 401k/IRA penalty-free
- 3.Ages 62–65: decide whether to claim Social Security early (permanent reduction) or continue drawing portfolio
- 4.Age 65: Medicare begins, reducing one of retirement's biggest wildcard expenses
Health Insurance: The Biggest Overlooked Cost
From 55 to 65, you need private health insurance. A healthy 55-year-old can expect $500–$900/month per person for a Silver ACA plan in most states. A couple: $1,000–$1,800/month. That is $12,000–$21,600/year that does not appear in most retirement calculators. Budget for it explicitly.
Keep your income below 400% of the federal poverty level ($58,320 for a single person in 2026) to qualify for ACA premium subsidies. Strategic Roth conversions can help you manage taxable income and reduce this cost significantly.