Cost of Retiring Early Calculator

Last updated July 2, 2026

Early retirement offers more of the most valuable resource — time — but at a financial cost that scales significantly with how early "early" actually is. Retiring at 55 versus 65 adds ten years to the retirement period that the portfolio must sustain, removes ten years of contributions and compound growth, triggers a gap before Social Security eligibility begins at 62 and Medicare eligibility at 65, and in many cases requires navigating early withdrawal penalties on tax-advantaged accounts before age 59½. The cumulative financial impact of a 10-year early retirement is substantial — often requiring 40 to 60 percent more in saved assets to sustain the same standard of living compared to retiring at the traditional age.

Rule 72(t) distributions allow penalty-free early withdrawals from IRAs before 59½ through a series of substantially equal periodic payments, but this requires careful structuring and locks the withdrawal amount for a minimum of five years or until age 59½, whichever is longer. Health insurance is the most immediate practical challenge — bridging the gap from employer coverage to Medicare at 65 costs an average family $20,000 to $40,000 or more per year depending on the plan, age of the retiree, and income level (which affects ACA subsidy eligibility). FIRE movement adherents — Financial Independence, Retire Early — typically address early retirement through aggressive savings rates of 50 percent or more of income, leading to portfolio sizes that sustain withdrawal rates of 3 to 3.5 percent over a 40-plus year horizon.

The calculation shows the full financial cost of your target early retirement age: the larger portfolio required, the healthcare bridge cost, the Social Security and Medicare timing gap, and the adjusted safe withdrawal rate for a longer retirement horizon. Then compare that to your current trajectory and identify the specific gap that separates your current savings rate from early retirement feasibility.