There's no universally "best" retirement age — but there is a best retirement age for your specific financial situation. Here's the analysis across the common options.
Retiring at 55: the ambitious plan
Financial challenge: 10 years without Medicare, 7 years without Social Security, and the longest portfolio to fund (potentially 35–40 years). Requires largest portfolio.
Healthcare: ACA marketplace until 65. Income management critical for subsidy eligibility. COBRA available 18 months from last employer.
Portfolio access: Rule of 55 (for 401k at last employer), Roth contributions, taxable accounts before 59½. Roth conversion ladder needed for traditional IRA access.
Required portfolio (3.5% withdrawal): $50,000/year spending = $1,428,571 minimum.
Retiring at 62: the early Social Security trade-off
Earliest SS claiming age — but at a permanent 30% reduction from FRA benefit. On $2,000 FRA benefit: you receive $1,400/month at 62. This reduction is permanent and affects survivor benefits.
When to claim at 62: Health issues that reduce life expectancy, immediate financial need, no better investment for the delay years.
Retiring at 65: the Medicare milestone
Healthcare solved — Medicare begins at 65 (enroll 3 months before your 65th birthday or face permanent premium penalty). Still 2 years before Full Retirement Age for most. 8% per year reduction from age 65 to 67 FRA for benefits.
Retiring at 67 (Full Retirement Age)
The default target for most planning models. Full SS benefit, Medicare established, RMDs still 6 years away. Each month worked beyond FRA increases benefit by 0.67% (8% per year through age 70).
Retiring at 70: maximum optimization
Maximum Social Security (124% of FRA benefit). On $2,000 FRA: $2,480/month at 70. If you live past 82, delaying to 70 maximizes lifetime income. Three extra years of accumulation. Portfolio has longest base.
| Age | SS benefit (%) | Healthcare | Portfolio needed ($50k spending) |
|---|---|---|---|
| 55 | N/A | ACA market | $1,428,571 (3.5%) |
| 62 | 70% | ACA market | $1,250,000 |
| 65 | 86.7% | Medicare | $1,100,000 |
| 67 | 100% | Medicare | $875,000 |
| 70 | 124% | Medicare | $625,000 |
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