Illinois households buying coverage on the Affordable Care Act marketplace are staring at steep price hikes if Congress lets enhanced premium tax credits lapse — and that includes families in Barrington. The provided sources contain no figures specific to Barrington, so this article uses statewide and county-level projections as proxies. State regulators warn average monthly costs would jump about 78%, from $260 this year to $464 next year, according to the Illinois Department of Insurance.

What residents will see

The enhanced premium tax credits, expanded in 2021, currently lower monthly bills for the vast majority of people using the exchange: roughly 91% of Illinois enrollees receive this help, state regulators report, according to the Illinois Department of Insurance. If those enhanced credits end, many households would pay more — and some could be priced out.

County-by-county projections show wide variation. As proxies for Barrington-area impact, the closest available data indicate average premiums are projected to rise by about 95% in Cook County and 47% in Lake County, state regulators say, according to the Illinois Department of Insurance. The contrast is starker in parts of rural Illinois: Effingham County is projected to see an average increase of about 456%, to roughly $1,029 a month per household, according to the same state analysis from the Illinois Department of Insurance.

Open enrollment runs Nov. 1 through Jan. 15 on the state’s official marketplace, Get Covered Illinois.

Why these credits matter

The American Rescue Plan Act temporarily boosted ACA premium tax credits and removed the old “subsidy cliff” at 400% of the federal poverty level — expanding eligibility to many middle-income families who previously received no help. If those enhancements expire, assistance would scale back and some higher-income households would again lose eligibility entirely, according to analyses summarized by ACA Signups and Kaiser Family Foundation.

State regulators also caution that higher sticker prices could push some healthier consumers to skip coverage, leaving a sicker risk pool that drives rates up further, according to the Illinois Department of Insurance.

How many Illinoisans are affected?

Even basic enrollment tallies vary by source. The state reported 398,814 Illinoisans enrolled during the 2024 open enrollment period, a 16% increase, according to the Illinois Department of Insurance. A separate estimate places current exchange enrollment around 466,000, with roughly 90% receiving subsidies, according to Kaiser Family Foundation. Another analysis suggests about 488,000 Illinois residents could face higher costs if the enhanced subsidies end, according to ACA Signups.

The differences largely reflect distinct reporting windows and definitions — for example, plan selections during open enrollment versus effectuated coverage on a given date — as noted across those sources.

Market changes on the horizon

Consumers may also encounter a reshaped marketplace next year. Several carriers have announced exits for the 2026 plan year: Aetna CVS Health, Health Alliance and Quartz will depart the state exchange, and Cigna plans to exit Cook County while continuing to sell marketplace plans elsewhere in Illinois, according to the Illinois Department of Insurance. Fewer carriers in some regions can limit plan choices and may add upward pressure on premiums, especially if enrollment skews older and sicker.

Affordability pressures won’t exist in a vacuum. About one-third of Illinoisans already spend more than 30% of their income on housing — the highest rate in the Midwest — and more than 81% of households making under $35,000 fall into that cost-burdened category, according to the Illinois Policy Institute. Any added health premium costs would hit those budgets hard.

What Barrington-area residents can do now

While Washington debates the future of enhanced credits, residents can take practical steps ahead of open enrollment:

  • Mark the calendar: Enroll between Nov. 1 and Jan. 15 through Get Covered Illinois. Enrolling early can help secure preferred plans and access to assistance.
  • Check your 2025 income: Gauge whether you would qualify for a tax credit both with and without the enhanced rules, as ARPA’s removal of the 400% FPL “cliff” could expire, according to ACA Signups.
  • Compare all options: Review marketplace plans, but also check eligibility for Medicaid or employer coverage if your circumstances have changed, via Get Covered Illinois.
  • Get help: Use certified navigators or brokers and official tools provided by Get Covered Illinois and guidance from the Illinois Department of Insurance.
  • Save your paperwork: Keep notices from the state or your insurer. Regulators say they will work with carriers to ensure residents receive savings if federal action occurs after enrollment, according to the Illinois Department of Insurance.

The stakes for Barrington

No Barrington-specific premium data were provided in the source materials. But given the county-level projections used as proxies, residents in communities connected to Cook County, where average premiums are projected to rise about 95%, and to Lake County, where a roughly 47% increase is projected, could see similar upward pressure if enhanced credits end — though actual impacts will vary by plan and household, according to the Illinois Department of Insurance.

What happens next will hinge on two timelines: Congress’s decision on the enhanced tax credits and the state’s marketplace updates heading into open enrollment. Any extension of the enhanced subsidies would directly change the premium outlook; insurer participation decisions for 2026 will shape plan choice. For now, Barrington-area households should prepare, compare plans carefully, and watch for official updates from Get Covered Illinois and the Illinois Department of Insurance.