Cheapest ACA plans in Arizona for 2026

Cheapest plans by metal tier

Lowest 2026 monthly premium for a single 40-year-old non-tobacco user, on-exchange, before any subsidy. Per-age figures derived from the CMS QHP Landscape file using the HHS standardized age-rating curve (45 CFR 147.102).

The actual cheapest plan in major counties

Same data the search returns: carrier, plan name, monthly premium, individual deductible, individual MOOP. Computed for a single 40-year-old non-tobacco user, before any subsidy. Catastrophic plans excluded because adults 30+ typically need a hardship-exemption certificate to enroll.

The actual cheapest plan for a family of four

Two 40-year-old adults and two kids in the 0-14 age band, before any subsidy. Carrier, plan name, premium, deductible, and MOOP exactly as the search would return them.

Subsidies: federal APTC only (no state premium subsidy)

Arizona does not fund a state premium subsidy or reinsurance program. Only federal programs apply:

1. Federal Advance Premium Tax Credit (APTC). Households 100-400% FPL on the PY2026 standard ACA contribution curve. The ARPA / IRA enhanced subsidies expired 2025-12-31 and are not in effect for 2026, so the hard 400% FPL cliff returned for PY2026 and subsidized net premiums rose for most enrollees.
2. Federal cost-sharing reductions (CSRs). Households 100-250% FPL enrolled in a Silver plan receive reduced deductibles, copays, and out-of-pocket maximums automatically.

Arizona expanded Medicaid effective January 2014 through AHCCCS (Arizona Health Care Cost Containment System), Arizona's statewide managed-care Medicaid program. Adults 19-64 up to 138% FPL qualify regardless of parental status or disability, so there is no coverage gap in Arizona.

Catastrophic plans in Arizona follow federal rules

Arizona follows the federal ACA default: Catastrophic plans are available to enrollees under age 30, or at any age with a hardship / affordability exemption. The PY2026 federal auto-expansion applies (adults 30+ automatically eligible when the lowest-cost Bronze plan exceeds the affordability threshold). APTC does not apply to Catastrophic plans.

Tobacco surcharges follow the federal 1.5x default in Arizona

Arizona applies the federal ACA default (45 CFR 147.102): carriers may charge tobacco users up to 50% more than non-users (a 1.5-to-1 rate ratio). The Arizona Department of Insurance and Financial Institutions reviews rate filings under A.R.S. Title 20. No Arizona-specific cap below the federal 1.5x ceiling has been identified. Federal APTC does not offset the tobacco portion of the premium.

Carriers selling 2026 plans in Arizona

11 carriers, 1,366 plans across 15 counties. 896 sold on Healthcare.gov, 470 off-exchange-only direct from carriers. Arizona has one of the more competitive individual markets in the Mountain West. Phoenix (Maricopa) and Tucson (Pima) typically see 5-7 carriers on-exchange, including Blue Cross Blue Shield of Arizona, Cigna, Oscar, UnitedHealthcare, Ambetter (Centene), Imperial Insurance, and Aetna CVS. Rural counties have thinner options, but all 15 Arizona counties have multi-carrier coverage for PY2026.

Enrollment

Open Enrollment for 2026 coverage runs November 1, 2025 through January 15, 2026. Enroll by December 15 for a January 1 effective date; December 16 through January 15 takes effect February 1. Special Enrollment is available year-round for qualifying life events.

Direct enrollment: healthcare.gov.

Frequently asked questions