Written by a parent, not a doctor. Nothing here is medical advice.

Childhood Cancer Lantern
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Federal, exists in every state

Replacement insurance after coverage ends (Marketplace)

A qualifying coverage loss can let you buy an individual health plan outside open enrollment.

What it is

A qualifying coverage loss can let you buy an individual health plan outside open enrollment.

A diagnosis alone does not open an enrollment window. A qualifying loss of coverage can, and premium help depends on annual household income and other eligibility rules. The exact plan’s hospital and pharmacy network matters during treatment.

Enrollment and premium help
  • For an eligible coverage loss, the ordinary enrollment window is 60 days before or after the loss, and Medicaid or CHIP loss allows 90 days afterwards. HealthCare.gov’s loss-verification instructions give 30 days after plan selection to submit requested proof. A coverage-end date, not merely a work change or a diagnosis, determines whether this enrollment route fits.
  • The enhanced premium tax credits ended December 31, 2025. For 2026, the federal credit generally runs from 100% to 400% of poverty; above 400%, no credit applies. Repayment caps are gone.
  • A HealthCare.gov assister confirms whether an income-based monthly enrollment period is currently available. A Medicaid denial creates an enrollment window only when its timing and other rules are met.
  • Tax-credit immigration rules depend on the tax year and differ from the rules for buying Marketplace coverage. An enrollment assister confirms the applicable 2026 or 2027 premium-help rule before estimating a credit or ruling it out.
  • Members of federally recognized tribes and ANCSA shareholders have special enrollment and cost-sharing routes. The marketplace can explain qualifying plans and referral rules.
What you get
  • An individual plan that cannot exclude your child because of cancer.
  • Help with premiums when the household meets the tax-credit rules.
Treatment access
  • The hospital accepting an insurer does not establish that it accepts the exact marketplace plan. Medicines and specialty pharmacies need their own checks.
If you decide to apply
  1. Ask a hospital enrollment specialist to check the event and coverage-end date with the marketplace.
  2. Bring the coverage-loss notice, an annual income estimate and the names of the hospital, doctors and specialty pharmacy.
  3. Compare the exact plan with COBRA, including its premium, treatment costs and coverage start date.

HealthCare.gov enrollment help, 800-318-2596 · Official page ↗

Before coverage starts
  • HealthCare.gov generally sets coverage for the first day of the month after plan selection for an already-ended qualifying plan. Selecting before coverage ends can avoid a gap under the applicable loss-of-coverage start rule. The insurer’s first-premium deadline still must be met; the payment date does not automatically move the coverage start to the following month.
Good to know

Voluntarily cancelling coverage usually does not open a new enrollment window.

North Dakota enrollment
  • North Dakota uses HealthCare.gov, with enrollment help at 800-318-2596. Medicaid and CHIP applications have no annual enrollment season.
Official sources
Ask your social worker

“Could you help us check replacement coverage and avoid a gap?”

Why I’m asking: If our coverage ends, we want to understand replacement plans, treatment access and the deadline.

More background and detailed requirements
Additional program information and published rules

Who does what

The three parts, side by side. The agency decides; nobody on this page does.

You

Report the event and date inside the period, send documents within 30 days, and pay the first premium by the insurer's date.

Your social worker

Connects you to an enrollment assister and checks the exact plan against the center's contracts.

The care team

Records and letters when the application asks for them.

Who decides
The Marketplace (eligibility and credit) and the insurer (coverage start)
Ask your social worker
“Does this Marketplace plan cover our center and specialty pharmacy? Who can help compare it with COBRA before we enroll?”

How to apply

First step: Go to HealthCare.gov's special-enrollment page or call 1-800-318-2596 within 60 days of the loss (90 after Medicaid/CHIP), and report the exact event and date.

  1. Identify the event and its date.
  2. Check the treating hospital and specialty pharmacy against the exact plan.
  3. Compare with COBRA before choosing.

Where it starts: HealthCare.gov special-enrollment page or 1-800-318-2596. State exchanges where they exist

What to gather

  • The coverage-loss notice or the Medicaid/CHIP termination letter with dates
  • An annual income estimate for the tax household
  • The names of the treating hospital, oncologists and the specialty pharmacy to check against the plan

How long: Enrollment is immediate once verified (30 days to send documents). Coverage starts the first of the month after you pick a plan and pay.

Clock: 60 days before or after an ordinary coverage loss to enroll.

Clock: 90 days after Medicaid or CHIP ends to enroll.

What a yes looks like

An enrollment confirmation with the premium, the credit and the start date. The hospital confirms it is in network.

What a no looks like, and the next move

“No qualifying event” or “outside the period”. Ask about COBRA or state continuation, and Medicaid, which has no season.

Watch out

  • A diagnosis alone opens nothing. A lost plan, a move, a birth or a Medicaid/CHIP loss does. A Medicaid denial opens a period only on the timing branch. Keep the application and denial dates.
  • Check the exact plan's network for the treating hospital and the specialty pharmacy before paying. “the hospital takes that insurer” is not enough.
  • The enhanced tax credits ended December 31, 2025; higher-income families can lose all premium help. The monthly low-income enrollment period is paused through 2026.
  • Members of federally recognized tribes and ANCSA shareholders have special enrollment and cost-sharing routes. Ask the Marketplace for the tribal eligibility check, the zero- or limited-cost-sharing plan, and how referrals are handled.

Dates that change this

2025-12-31: The enhanced premium tax credits ended December 31, 2025. In 2026 the credit runs from 100% to 400% of the poverty line; above 400% there is none, and repayment caps are gone.

2025-08-25: The monthly enrollment window for households at or below 150% of the poverty line is paused through plan year 2026.

2026-01-01: For tax year 2026 the below-100% exception for lawfully present immigrants is gone; from tax year 2027 the credit is limited to lawful permanent residents, Cuban/Haitian entrants and COFA migrants.

The numbers and the rules

The arcane layer, kept on purpose. Checked September 10, 2026.

What it is worth

An ACA plan that must take a child with cancer, with a premium tax credit between 100% and 400% of the poverty line. Enrollment outside the yearly season.

Legal protection: Pre-existing-condition protection · 60-day period before or after an ordinary coverage loss · 90-day period after loss of Medicaid or CHIP · 30 days to send documents

What it costs the family: Plan-specific premium and cost-sharing. The enhanced credits ended December 31, 2025, so above 400% of the poverty line there is no credit in 2026.

The eligibility facts, as published

Qualifying event
yes
Window days ordinary loss
60
Window days after medicaid chip loss
90
Document window days
30
Medicaid denial
opens a window only on the timing branch

Decisions this site cannot make: Event and subsidy eligibility

Expect friction on: Network and formulary checks · Enrollment timing

The trap: Check the exact plan's network for the treating hospital and the specialty pharmacy before paying. “the hospital takes that insurer” is not enough.

What changes by state: Some states run their own insurance marketplace. Federal rules set enrollment deadlines.

Where I read this

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