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Iowa advances HMO tax hike to cover Medicaid funding gap

Medicare costs jump in 2026, and supplemental plans may soften the blow

Iowa lawmakers moved forward with a proposal to raise taxes on HMO health plans to support Medicaid funding. Committees in both the House and Senate advanced the bill, setting up a tighter timeline for approval.

The measure lifts the current HMO tax rate from 0.925% to 3.5% for most of 2026, running from Jan. 1 through Sept. 30.

State insurance officials estimate the increase would generate about $204 mn this year. The state faces a $91 mn Medicaid shortfall in the current fiscal year, followed by a projected $168 mn gap next year.

Governor Kim Reynolds ties the proposal directly to those funding pressures. She also points to federal authorization under the One Big Beautiful Bill Act signed last year.

The proposal triggered pushback from insurers and business groups as it cleared committees. Critics focus on the structure and timing.

The tax applies retroactively, which raises immediate concerns around pricing and planning. Brandon Geib, representing Wellmark Blue Cross and Blue Shield, said the company’s HMO would absorb roughly $24 mn in additional taxes this year. Those funds flow into Medicaid, where Wellmark does not operate.

He links the policy to broader premium increases. Costs rise, and insurers pass them through. That pattern isn’t new.

According to Beinsure analysts, short-term tax adjustments often show up quickly in pricing cycles, especially in regulated markets.

Most of the new revenue would come from insurers already contracted to manage Iowa’s Medicaid program. That detail shapes part of the debate.

Lawmakers backing the bill argue insurers should share responsibility for the funding gap. Representative Gary Mohr said the state faces a $600 mn Medicaid shortfall over the next five to seven years.

He frames the tax as a contribution from companies generating profit within the system.

Industry groups push back on long-term impact. Matt McKinney, representing the Federation of Iowa Insurers, said the increase reverses years of policy aimed at attracting insurance business to the state.

The sector now accounts for about 11% of Iowa’s GDP. He argues a short-term fix risks disrupting that trajectory.

The tax drops back after September, settling at 0.95% instead of the previously scheduled 0.9%. Still higher, even after the temporary spike.

  • Nate Ristow, president of the Iowa Taxpayers Association, focused on consistency. He said shifting tax policy during budget pressure sends a signal to businesses evaluating expansion. Stability matters, especially in capital-heavy industries like insurance.
  • Some lawmakers want alternatives but see limited options. Representative Shannon Lundgren said Medicaid costs continue rising across Iowa and nationally. She pressed insurers to offer solutions beyond opposition. Frustration shows on both sides.
  • Democrats oppose the measure outright. Representative Megan Srinivas said the tax will flow through to consumers, raising premiums further. She argues the bill adds pressure to households already facing higher health care costs. House Democrats requested a public hearing, scheduled for March 18.

The proposal moves under tight deadlines. Lawmakers aim to pass and sign the bill by the end of March. Federal approval remains required before implementation.

The legislation also adjusts how Iowa uses its Taxpayer Relief Fund. The state faces more than $1 bn in combined budget deficits across consecutive years, tied in part to recent tax cuts.

The fund held about $4 bn at the end of the last fiscal year. Current rules split deficit coverage between the fund and the state’s ending balance.

The House version changes that structure. It adds expected transfers from the fund into the state’s spending limit calculations, raising the ceiling for budget allocations.

It also directs an additional $296 mn from the fund into the general fund to offset revenue losses linked to recent tax policy changes.