Healthcare Costs Could Rise Nearly 10% in 2027. At 64, a Full-Price COBRA Bill Can Push Him Into a Smaller Social Security Check.

COBRA can triple a retiree's health premium from $300 to $900+ monthly, since federal law allows charging 102% of the full plan cost.

Claiming Social Security at 64 instead of 67 permanently locks in 80% of benefits, with break-even versus waiting landing around age 79.

HSA funds can pay COBRA premiums tax-free, and losing employer coverage also triggers a Marketplace special enrollment period that may offer cheaper coverage.

Two retirees, same $1 million, same 4% rule, buy one finished with $1.4 million, the other hit $0 in 12 years. Our free reader guide explains the flaw that separated them, and the income-first method built to avoid it.

Healthcare costs are heading toward another difficult year. Aon projects average employer health-plan costs will climb 9.5% in 2027 to more than $19,000 per employee. Picture a 64-year-old preparing to retire. For years, his paystub showed a health-insurance deduction of roughly $300 a month because his employer picked up most of the cost. Then the COBRA notice arrives showing $900 or $1,000 for what looks like the same coverage. That is not necessarily a mistake.

Under federal law, COBRA can charge up to 102% of the plan's total cost, including the portion the employer had been paying plus a 2% administrative charge. Suddenly, turning on Social Security to cover the premium looks tempting. That is where a temporary healthcare bill can become a permanent retirement decision.

For someone born in 1960 or later, Social Security full retirement age (FRA) is 67. Starting exactly at 64 means filing 36 months early and generally receiving 80% of the FRA benefit. Suppose his benefit at 67 would be $2,500 a month. At 64, it would be about $2,000. The $500 difference does not disappear when he reaches 67. Future cost-of-living adjustments (COLAs) apply to whichever benefit he established. But calling that difference a simple lifetime "loss" goes too far.

The 4% Rule is Broken, Built On A World That No Longer Exists

Every retiree knows about the 4% rule, but it frames retirement as a slow liquidation and still causes retirees with seven-figure accounts to agonize over a dinner out.

There's a different way to run the math that makes more sense today. Build an income floor — dividends, interest, and Social Security that cover your essential bills every month — and you never have to sell shares into a down market just to pay them.

Our free reader guide, The 4% Rule Is Broken , walks through it in about 15 minutes. Access the report here.