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How to calculate retirement savings needed for early versus later retirement
The article says retiring in the mid 50s can require millions more because Medicare and Social Security are unavailable and health insurance costs are higher.
Yahoo Finance frames the issue around a key planning shift, arguing that the commonly cited retirement savings “magic number” depends heavily on when someone retires, since retiring at 55 versus 65 changes both the saving window and the years of spending to fund.
It notes that the “magic number” for 2026 is $1.46 million, up $200,000 from the prior year, and adds that retiring at 55 can be complicated by the lack of Medicare and Social Security eligibility, which forces workers to buy coverage on the open market.
Using an example of needing $10,000 per month, the piece estimates that a household would need $135,000 in annual passive income, and under the 4% retirement rule that implies about $3.4 million saved. It further cites Kaiser Family Foundation data that average health insurance costs are $625 per month for an individual in 2026, or $1,250 per month for a couple.
The article also points to the inventor of the 4% rule, saying he now recommends a 5.5% rate as potentially safer, which would lower the amount needed by about $900,000, though it also increases the burden on investments given the longer time horizon and higher risk of running out of money.