New Hampshire Health Insurance Marketplace: 2026 HealthCare.gov Enrollment

The New Hampshire health insurance marketplace runs on HealthCare.gov — the federal exchange where a record 70,337 Granite Staters enrolled for 2025, though enrollment is trending lower for 2026 after enhanced subsidies expired. Four carriers sell on-exchange: Ambetter from NH Healthy Families, Matthew Thornton Health Plan (Anthem), Harvard Pilgrim Health Care, and WellSense Health Plan. A fifth — Anthem Health Plans of NH — offers an HMO exclusively off-exchange. New Hampshire’s state reinsurance waiver has kept premiums among the lowest nationally, and Commissioner DJ Bettencourt’s rate review reduced many 2026 filings from their initially proposed levels. The weighted average on-exchange increase of +28.1% is significant, but the low starting base means NH premiums remain competitive. This guide walks through how the marketplace works, step-by-step enrollment, how the reinsurance waiver affects pricing, key 2027 dates, and where to find help.

NH on HealthCare.gov: Federal Exchange With the Nation’s Lowest Base

The New Hampshire health insurance marketplace is the state’s HealthCare.gov platform. The New Hampshire health insurance marketplace operates through HealthCare.gov — the federal exchange. New Hampshire has not built a state-based platform. Four carriers offer on-exchange plans for 2026: Ambetter, Matthew Thornton (Anthem), Harvard Pilgrim, and WellSense. Anthem Health Plans of NH sells an additional HMO product exclusively off-exchange. Commissioner DJ Bettencourt oversees rate approvals through the NH Insurance Department, applying rigorous actuarial review to keep filings grounded in verifiable data.

All four on-exchange carriers serve most of New Hampshire’s 10 counties — giving Granite Staters genuine choice regardless of whether they live in Manchester, the Seacoast, or the Upper Valley. The HealthCare.gov window-shopping tool shows exactly which plans are available in your ZIP code with subsidy calculations applied before you create an account. Granite Advantage Medicaid enrollment is year-round through NH EASY for adults under 138% FPL — HealthCare.gov applications automatically screen for Medicaid eligibility. New Hampshire’s marketplace is distinguished nationally by its combination of low base premiums, strong carrier competition, and the 1332 reinsurance waiver that structurally reduces costs.

The Reinsurance Waiver: Why NH Premiums Stay Low

New Hampshire’s Section 1332 state reinsurance waiver is the structural reason the New Hampshire health insurance marketplace has maintained among the lowest premiums nationally. The Individual Health Plan Benefit Association — restructured through 2023 legislation — absorbs excess risk from the individual market, preventing the most expensive claims from driving premiums higher for everyone. Commissioner Bettencourt credits the waiver as a cornerstone of the state’s affordability strategy.

The waiver works by transferring high-cost claims above a threshold from individual carriers to the reinsurance pool, which is funded through a combination of federal pass-through savings and state mechanisms. This reduces the per-enrollee cost that carriers must build into their premiums. Without the waiver, NH premiums would be substantially higher — the Department estimates the reinsurance program saves enrollees significant amounts annually. Combined with the Commissioner’s rate review process — which required carriers to demonstrate verifiable data, reflect genuine cost differences, and show improving administrative efficiency — the waiver creates a regulatory environment that other states have looked to as a model. The NH Insurance Department publishes consumer resources and approved rate filings.

How to Enroll in the NH Marketplace Step by Step

Enrolling in the New Hampshire health insurance marketplace takes four steps on HealthCare.gov: create an account, enter household and income details, browse plans from four on-exchange carriers, and confirm your selection with premium tax credit applied. Most Granite Staters complete enrollment in 30–60 minutes. Covering New Hampshire navigators at 1-877-211-NAVI and licensed agents provide free enrollment help statewide.

Key Dates: The 2027 Window Drops to Six Weeks

Open Enrollment for the 2026 New Hampshire health insurance marketplace ran November 1, 2025 through January 15, 2026. For 2027, the window shortens to November 1 – December 15, 2026 — six weeks instead of ten. Missing December 15 means no marketplace coverage for 2027 unless a Qualifying Life Event triggers a Special Enrollment Period. Granite Advantage Medicaid and CHIP accept applications year-round through NH EASY.

The compressed 2027 window is especially important because Granite Advantage premium and work requirement changes are arriving mid-2026. Some Medicaid enrollees who lose eligibility due to new premiums or work requirements will need to transition to marketplace plans — and the November–December window may be their first opportunity if they miss a Special Enrollment Period. Setting a calendar reminder for November 1 and beginning comparison immediately prevents last-minute scrambles. Covering New Hampshire navigators (acanavigator.com/nh/home or 1-877-211-NAVI) and the NH Insurance Department consumer line at 800-852-3416 provide free assistance.

How NH Marketplace Subsidies Work After the Enhanced Credit Expiration

Premium tax credits still exist for New Hampshire health insurance marketplace enrollees below 400% FPL, but enhanced subsidies expired at the end of 2025. The subsidy cliff returned — Granite Staters above 400% FPL receive no credit. Below the cliff, credits cap the benchmark Silver as a percentage of income. Despite NH’s low base premiums, the +28.1% increase means net after-subsidy costs rose substantially for most enrollees — particularly those near the cliff threshold.

The subsidy math in New Hampshire is unique because the low premium base means smaller absolute credit amounts. In a high-premium state, a 40-year-old earning $50,000 might receive $400/month in credits. In NH, the same person receives less because the benchmark Silver starts lower — but pays less out of pocket too. The net effect is that NH remains more affordable than most states at every income level. Credits reconcile at tax time via IRS Form 8962. A couple in their early 60s earning $90,000 could see annual premiums increase substantially after enhanced credits expired. The NH affordable coverage guide details subsidy optimization strategies specific to the Granite State’s low-premium environment.

Granite Advantage to Marketplace: The 2026 Transition Path

Granite Advantage Medicaid changes in 2026 — including new premiums for expansion adults and CHIP families, plus upcoming work requirements — may push some enrollees toward marketplace plans. Those who lose Medicaid eligibility qualify for a 60-day Special Enrollment Period on HealthCare.gov. With NH’s four competitive on-exchange carriers and subsidy eligibility below 400% FPL, the marketplace provides a viable coverage bridge for Granite Staters transitioning off Medicaid.

The transition is particularly relevant for Granite Advantage adults above 100% FPL who will face $60–$100/month premiums starting July 2026. Some may find that a subsidized marketplace Silver plan — with cost-sharing reductions under 250% FPL — offers comparable or better value than paying the new Medicaid premium, depending on income level and healthcare needs. Covering New Hampshire navigators can walk through both options side by side. Special Enrollment Period qualification for Medicaid loss is covered above in the enrollment steps. Contact NH DHHS to understand your specific Granite Advantage status before making changes.

Enrollment Questions From Granite State Residents