As Congress wrangles over whether to extend enhanced Affordable Care Act subsidies, Barrington households who buy coverage on the exchange are staring at sharp premium increases for 2026. Illinois regulators project an average 78% jump in monthly costs statewide if the enhanced premium tax credits expire, pushing average premiums from $260 to $464 a month next year, according to state data reported by the Chicago Tribune and the Illinois Department of Insurance.

The stakes are high for the roughly 550,000 Illinois residents who enrolled in exchange plans this year, a record for the state, and for the overwhelming share — about 91% — who currently receive the enhanced credits, as reported by the Chicago Tribune citing the Illinois Department of Insurance.

What Barrington residents can expect

No Barrington-specific subsidy data is provided in the source materials; the following uses county-level figures to indicate likely local impacts. Because the village spans both Cook and Lake counties, local outcomes will vary by address. Residents on the Cook County side would likely see average monthly premiums rise about 95% if the enhanced subsidies lapse, while those on the Lake County side would face an average 47% increase, according to projections from the Illinois Department of Insurance reported by the Chicago Tribune.

Other collar counties would see significant hikes as well: DuPage County about 71%, Will County about 83%, and Kane County about 66%, the Chicago Tribune reported from state filings. Regulators also flagged extreme spikes in some rural areas, including Effingham County, where average premiums would jump about 456% to $1,029 per month, and Jackson County, where costs would rise about 274% to $458 per month, according to the Illinois Department of Insurance via the Chicago Tribune.

Ann Gillespie, director of the Illinois Department of Insurance, underscored the risk of coverage losses if the enhanced help disappears. “Some of them are going to lose their coverage entirely,” Gillespie said. “But everybody is going to be hit by this,” according to the Chicago Tribune citing the Illinois Department of Insurance.

How the credits work — and why expiration matters

Premium tax credits are advanceable subsidies tied to income that cap what a household pays for a benchmark silver plan; the credit is applied up front to lower the monthly bill, according to the Centers for Medicare & Medicaid Services. Congress expanded and enriched these credits in 2021 under the American Rescue Plan Act, reducing the share of income many families must pay and extending eligibility above 400% of the federal poverty level for the enhanced years, as explained by the Centers for Medicare & Medicaid Services and analyzed by Illinois Health Agents. If the enhancements expire, caps revert to prior-law formulas, which would raise premiums for many enrollees and cut off subsidies entirely for some higher-income households.

Open enrollment for 2026 coverage runs Nov. 1 through Jan. 15, and Illinois is transitioning from the federal platform to a state-run exchange this cycle to give the state more flexibility in managing coverage transitions and outreach, according to the Chicago Tribune and the Illinois Department of Insurance.

What’s driving the proposed increases

Insurers pointed to the potential expiration of the enhanced credits and to rising health care costs and utilization in their filings with the state, according to the Chicago Tribune. Analysts warn that higher sticker prices can also drive younger, healthier people out of the market, raising the average risk level of those who remain and putting further upward pressure on premiums — a classic adverse selection spiral described by the Chicago Tribune and Illinois Health Agents.

Illinois’ individual market has weathered swings before. Premiums rose sharply in 2016–2017 as insurers recalibrated after the end of a federal reinsurance program, and some carriers exited, reducing competition, according to historical analysis by Illinois Health Agents. Looking ahead, several insurers are set to pull back for 2026: Aetna CVS Health, Health Alliance and Quartz plan to exit the Illinois exchange, and Cigna will stop selling marketplace plans in Cook County while maintaining offerings elsewhere in the state, based on state reporting and filings cited by the Chicago Tribune.

The political reality

The enhanced subsidies sit at the center of ongoing federal budget negotiations. Democrats are pushing to extend them, while Republican House Speaker Mike Johnson has opposed continuing them without reforms; he has called the enhanced credits “a boondoggle” that is subsidizing “bad policy” and said any continuation should include “real reform,” according to the Chicago Tribune.

What you can do now

Consumer guidance from state regulators and industry analysts emphasizes preparation ahead of open enrollment, according to the Illinois Department of Insurance, as reported by the Chicago Tribune, and advice summarized by Illinois Health Agents:

  • Verify your subsidy eligibility and update your household income; even small income changes can affect your monthly credit.
  • Compare total costs after subsidies — premiums plus expected out-of-pocket spending — rather than only the sticker price.
  • Check provider networks and prescription formularies to ensure your doctors and medications are covered.
  • Enroll early between Nov. 1 and Jan. 15 to avoid last-minute issues and ensure coverage starts on time.
  • Seek free help from certified navigators or licensed brokers if you need assistance evaluating plans and subsidies.
  • If your income now qualifies, consider Medicaid or the Children’s Health Insurance Program.

For Barrington families on both sides of the county line, the next several weeks will bring pivotal decisions. The state’s move to a new exchange promises more flexibility during enrollment, and if Congress acts to extend the enhanced credits after sign-ups begin, state officials have said they would work with carriers so consumers see the savings, according to the Chicago Tribune. But absent federal action, the numbers from the Illinois Department of Insurance suggest substantial new costs — especially in Cook County — that could reshape how many of our neighbors keep their coverage in 2026.