State guides answer the three intake questions brokers get before income: which exchange platform, whether Medicaid expansion changes the subsidy cliff, and which carriers filed in the state for 2026.
At a glance
- Illinois uses State Based Marketplace for individual market enrollment.
- Medicaid expansion status: expanded.
- CMS lists 200 issuers on file for 2026.
- Sample rating area: Chicago (60601).
Marketplace snapshot
Figures below come from CMS Marketplace filings for plan year 2026. The sample ZIP is 60601 in Chicago. Use coverage preview for another rating area, then quote the household when you need APTC and CSR math.
| Field | IL · 2026 |
|---|---|
| Exchange platform | State Based Marketplace |
| Medicaid expansion | Expanded |
| Plans in Chicago (60601) | Not returned yet |
| Premium range (before APTC) | Not returned yet |
| Issuers on file | 200 |
Exchange platform
Illinois runs on State Based Marketplace. Confirm SEP and OEP deadlines on the state site when the household is not on the federal HealthCare.gov window.
Medicaid expansion
This state expanded Medicaid under the ACA. Households near 138% FPL may land in Medicaid instead of Marketplace APTC.
Open enrollment
Federal Marketplace OEP runs November 1 through January 15 for plan year 2026. Coverage effective dates follow Healthcare.gov rules for enrollments completed by December 15 and January 15. State based exchanges may publish different deadlines. Verify on the state exchange before you quote a last day to enroll.
Carriers in this state
Issuer rows come from CMS filings. Browse all carriers in IL.
Issuer 90335
Assurant Health
1 state
Issuer 96601
Coventry
1 state
Issuer 20617
Knights of Columbus
1 state
Issuer 66303
UnitedHealthcare Life Insurance Company
1 state
Issuer 33798
UnitedHealthOne
1 state
Issuer 80837
PacifiCare Life Assurance Company
1 state
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