Illinois ACA Premiums Rise 26% for 2026, Dodging Predictions of a Sharper Spike

CHICAGO — Illinois consumers who purchased health insurance on the state’s Affordable Care Act (ACA) exchange for 2026 are facing an average monthly premium increase of 26%, according to state officials. The rate hike, which took effect after enhanced federal premium tax credits expired at the end of 2025, was accompanied by a nearly 4% drop in the number of residents enrolled in the plans. While the double-digit increase presents a new financial hurdle for many individuals and small business employees, the outcome is significantly less severe than the 78% average jump state regulators had projected in late 2025. That dire forecast, issued by the Illinois Department of Insurance, was based on initial rate filings from insurers bracing for the end of federal subsidies that had been in place since 2021. For small and mid-sized businesses that do not offer group plans, this kind of premium volatility on the individual market directly impacts their employees' financial stability and, by extension, their own operational planning. Officials had warned that some regions could be hit especially hard. Projections showed potential average premium increases of 95% in Cook County, 71% in DuPage County, and a staggering 456% in Effingham County if consumers did not actively change their plans. These initial figures from insurers reflected not only the expiring subsidies but also rising healthcare costs and increased utilization of medical services. A combination of state-led initiatives and strategic consumer behavior helped blunt the full force of the anticipated rate shock. Get Covered Illinois, the state’s official ACA marketplace, launched a public awareness campaign encouraging residents to actively shop for new plans rather than allowing their existing coverage to be automatically renewed. This push appears to have been effective, as state data shows more than 78,000 enrollees switched to gold-level plans from silver or bronze plans during the most recent open enrollment period. This shift was driven in part by a new state policy known as “premium alignment.” A law passed in 2024 requires a state-regulated “load factor” to be added to all silver-level plans starting in 2026. This technical adjustment intentionally makes gold-tier plans, which typically have lower out-of-pocket costs, relatively less expensive than silver plans for individuals who do not qualify for cost-sharing reductions. According to Katherine Hempstead, a senior policy officer at the Robert Wood Johnson Foundation, states that have implemented similar premium alignment strategies have successfully improved affordability for many customers. “If we lose fewer people than we thought and premiums went up less, then we’ve mitigated harm from the enhanced premium tax credits expiring as much as a state could,” said Stephanie Altman, a member of the Illinois Health Benefits Exchange Advisory Committee, in a statement. “I think Illinois has done a great job with what we’ve had to work with.” In our experience, sudden spikes in essential costs like health insurance, even on the individual market, create significant financial strain for employees and operational headaches for employers. When workers are worried about affording healthcare, it affects morale and retention. This is why we counsel business owners to proactively consider these external economic pressures as part of their overall financial risk management. Understanding the landscape allows a company to budget more effectively for salaries and other benefits to remain competitive. C&S Finance Group LLC helps businesses navigate these complex financial environments to ensure they can attract and retain top talent; learn more at csfinancegroup.com. The recent market volatility is not without precedent in Illinois. Between 2016 and 2017, average ACA premiums surged by 20-25% after the expiration of a federal reinsurance program and the departure of major insurers like Aetna and UnitedHealthcare, which reduced market competition. The current situation, however, is driven more by changes in federal subsidy policy and the state’s strategic response to it. Despite the successful mitigation efforts, a 26% average increase still represents a significant financial burden for many households and sole proprietors who rely on the marketplace for coverage. The actual increase for unsubsidized, full-price premiums was closer to 30.1%, according to health policy analysts. The 26% figure reflects the average impact on consumers after factoring in the plan-switching and premium alignment effects. Looking ahead, Illinois is implementing further structural changes intended to stabilize the market. A 2023 law grants the Illinois Department of Insurance new authority to review, modify, or reject proposed rate changes from insurers, a power it previously lacked. The state is also moving forward with the creation of its own state-run insurance marketplace, which will give officials more direct control over enrollment, outreach, and plan management. The performance of these new systems and their effect on 2027 premiums will be closely watched by consumers and business owners across the state.