LANSING — Nearly half a million Michigan residents who rely on Affordable Care Act marketplace coverage are now paying significantly higher health insurance costs in 2026, with early enrollment data showing tens of thousands may already be abandoning coverage altogether as enhanced Obamacare subsidies expire and Republican-backed healthcare spending cuts begin taking effect nationally.

New federal enrollment data shows 491,565 Michigan residents signed up for ACA marketplace plans for 2026 coverage, down roughly 40,000 from the previous year. Healthcare analysts now warn the decline could accelerate throughout the year as consumers encounter higher monthly premiums, larger deductibles, and reduced federal assistance.

Nationally, the nonprofit KFF estimates ACA marketplace enrollment could ultimately fall by nearly 5 million people in 2026 — more than a 20 percent decline — following the expiration of pandemic-era subsidy expansions Jan. 1.

If Michigan follows similar national trends, an estimated 85,000 to 125,000 Michigan residents could eventually lose marketplace coverage this year. But some Michigan Democratic lawmakers and healthcare advocates say the final numbers could be even worse.

During a Tuesday press call organized by Defend America Action and Protect Our Care Michigan, Democratic lawmakers warned that federal healthcare spending reductions, Medicaid changes, and the expiration of Affordable Care Act tax credits are creating a growing affordability crisis across the state.

The Democratic-backed report, titled “Trump and Republicans Are Making Health Care Unaffordable for Michiganders,” argued that rising premiums, Medicaid reductions, and pressure on rural hospitals could significantly worsen healthcare access in Michigan over the next several years.

While the report itself is openly partisan, several broader trends cited in the document — including rising ACA premiums, declining marketplace enrollment, and financial pressure on hospitals — have also been documented by independent health policy organizations.

U.S. Rep. Debbie Dingell said constituents increasingly fear they may no longer be able to afford healthcare coverage or prescription medications.

“People are really hurting right now,” Dingell said during the call. “People in Michigan are scared. They’re worried that they are going to have to choose between their insulin and their rent.”

Dingell said healthcare access concerns are especially severe in rural communities where hospitals and specialty care services continue shrinking.

“Young women who are getting pregnant are worried,” Dingell said. “We’ve closed 10 OB-GYN lines in Michigan just this year alone.”

State Rep. Matt Longjohn, a physician and member of the Michigan House Appropriations Committee, warned that as many as 200,000 to 350,000 Michiganders could eventually lose healthcare coverage under the federal spending legislation Republicans have promoted as the “One Big Beautiful Bill.”

“Expectations are that in Michigan, between 200, maybe as many as 350,000 Michiganders are at risk for losing coverage,” Longjohn said.

Longjohn also warned Michigan could face major budget pressure as healthcare costs shift from the federal government back onto the state.

“We start this year’s budget situation with an estimated one-and-a-half, maybe as high as $1.8 billion in those cost shifts from the federal budget to the state budget,” he said.

The enrollment decline is turning what had been a political and policy debate into a real-world affordability problem already hitting Michigan households.

According to recent healthcare surveys, many ACA customers are now seeing monthly premium payments jump substantially while also facing higher deductibles and out-of-pocket costs. Some consumers have shifted into cheaper bronze-tier plans that carry deductibles exceeding several thousand dollars annually before coverage meaningfully kicks in.

KFF data shows average monthly ACA premium payments nationally increased from about $113 in 2025 to roughly $178 in 2026 after enhanced subsidies expired. Deductibles also rose sharply for many enrollees.

For Michigan, the consequences could extend far beyond individual consumers struggling to pay insurance bills.

Healthcare advocates warn rising uninsured rates could increase uncompensated emergency care costs for hospitals already under pressure from inflation, labor shortages, and weak reimbursement rates. Rural hospitals in Michigan are viewed as particularly vulnerable because many already operate on thin financial margins.

The Affordable Care Act marketplace became increasingly important in Michigan after the state expanded Medicaid under former Gov. Rick Snyder. Together, Medicaid expansion and subsidized ACA marketplace plans helped drive Michigan’s uninsured rate to historically low levels over the past decade.

Now, healthcare policy groups warn some of those gains may be starting to reverse.

Bridge Michigan reported earlier this year that about 40,000 fewer Michiganders enrolled in ACA marketplace coverage amid rising premiums and concerns over subsidy expiration.

Meanwhile, Blue Cross Blue Shield of Michigan has warned customers that federal subsidy reductions could lead to major premium spikes or coverage disruptions in 2026. The insurer recently advised consumers that federal financial assistance “could go down or stop entirely.”

Policy analysts say many consumers are now making difficult financial tradeoffs to maintain insurance coverage. Surveys show some Americans are cutting household spending, delaying medical care, or moving into plans with such high deductibles they effectively function as catastrophic coverage.

Republicans argue subsidy reductions are necessary to control long-term federal spending and reduce dependence on government healthcare support. Critics counter the changes are effectively weakening Obamacare without formally repealing the law.

The political implications could become significant in Michigan heading into the 2026 midterm election cycle as voters continue grappling with inflation, prescription drug prices, housing costs, and broader affordability concerns.

Healthcare affordability consistently ranks among the top economic concerns for Michigan households, particularly older adults, self-employed workers, gig-economy contractors, and small business owners who rely heavily on ACA marketplace plans because they lack employer-sponsored insurance.

Analysts also warn the full impact may not yet be visible.

Many consumers who initially selected ACA plans for 2026 may still fail to make premium payments later this year once rising healthcare costs collide with already strained household budgets.