Insurance Appeal Deadlines by State — 2026 Complete Guide
Missing your insurance appeal deadline means losing your right to appeal — even if you have a strong case. The federal minimum is 180 days, but your state, your plan type, and the nature of your denial may give you more or less time. This guide covers every deadline you need to know for 2026.
Find your denial letter and note the date on it. Count forward 180 days — that is your minimum federal deadline. Then start your appeal immediately. Read this guide to determine if your plan type has a shorter window.
Federal Baseline Deadlines Under the ACA
The ACA establishes minimum standards for most non-grandfathered health insurance plans. These are floors — states can require more generous deadlines.
| Appeal Type | Federal Minimum Deadline | Insurer Response Time |
|---|---|---|
| Internal appeal (standard) | 180 days from denial notice | 30–60 days |
| Internal appeal (urgent/expedited) | Any time while urgent need exists | 72 hours |
| Concurrent care (ongoing treatment) | Sufficient advance notice required | 72 hours (expedited) |
| External review request | 4 months after internal appeal denial | 45–60 days |
| External review (expedited) | Any time while urgent need exists | 72 hours |
The 180-day window begins from the date you receive the denial notice — not the date of service. Always read your EOB or denial letter for the specific deadline language that applies to your case.
Expedited Appeal Deadlines — 72 Hours
If waiting for a standard appeal decision would seriously jeopardize your health, life, or ability to regain maximum function, you qualify for an expedited appeal. The insurer must decide within 72 hours.
You qualify when: you are currently receiving treatment being terminated; a delay would cause significant deterioration; you need a decision before a procedure that cannot be safely delayed; or you are in an acute or emergency medical situation.
Explicitly state in writing that you are requesting “expedited review” and explain the urgent circumstances. Without the explicit request, the insurer may process your appeal under standard timelines.
Deadlines by Plan Type — Critical Differences
| Plan Type | Governing Law | Internal Appeal Deadline |
|---|---|---|
| ACA Marketplace / Exchange plan | ACA federal law | 180 days minimum |
| Fully-insured employer plan | ACA + state law | 180 days (state may be longer) |
| Self-funded employer plan (ERISA) | ERISA federal law only | 180 days (state laws don’t apply) |
| Medicare Advantage (Part C) | CMS regulations | 60 days |
| Medicare Part D (drugs) | CMS regulations | 60 days standard / 24 hrs expedited |
| Medicaid / CHIP | State Medicaid rules | Varies by state (often 60–90 days) |
| Tricare (military) | Federal Tricare regulations | 90 days |
If your insurance comes through a large employer, it may be self-funded — meaning state insurance regulations do not apply. These plans are governed exclusively by ERISA. Check your Summary Plan Description or ask HR. The presence of “ERISA” language in your plan documents is the key indicator.
Key State-Specific Appeal Rules — 2026
Many states have enacted consumer protection laws more protective than federal ACA minimums. These apply to fully-insured plans purchased in that state only. Self-funded ERISA plans are not covered by state law regardless of location.
External Review Deadlines
If your internal appeal is denied, you have the right to request external review by an independent organization. External reviewers overturn insurer decisions in 40–60% of cases and their decision is legally binding.
| External Review Type | Request Deadline | Decision Timeline |
|---|---|---|
| Standard external review | 4 months after internal appeal denial | 45–60 days |
| Expedited external review | Any time while urgent need exists | 72 hours |
See our full Know Your Rights guide and Appeals Guide for the complete external review process and how to file.
Don’t Let Your Deadline Pass
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