After the boost to ACA marketplace subsidies enacted as part of the American Rescue Plan Act (ARPA), the largest remaining bar to affordable coverage for all but undocumented Americans (who are barred from any government help for coverage) may be the affordability threshold for employer-sponsored insurance. It's ridiculously high. The IRS can provide some relief now, without portentous rulemaking.
The ACA defines employer-sponsored insurance (ESI) as affordable if a plan providing Minimum Essential Coverage (MEC) as defined by the ACA costs less than 9.5% of income. That baseline is adjusted annually to account for inflation in premiums in excess of inflation in the consumer price index and currently stands at 9.83% of income. MEC is equivalent to bronze-level coverage in the ACA marketplace, which typically means a single-person deductible in the $7,000 range. Those for whom an employer's offer of insurance is deemed affordable are ineligible for ACA marketplace subsidies (though not ineligible for Medicaid). KFF estimates that 3.5 million uninsured people are in this category.
