2027 Medicare Carrier Filings

When each state's plan list, cost figures, and Medigap filings are expected. Confirmed dates are published; expected windows are flagged so you know the numbers aren't out yet — we never estimate.

1. Apr 6, 2026Medicare costsConfirmed

   CMS final 2027 Rate Announcement

   Sets 2027 Medicare Advantage payment rates and the Part D out-of-pocket cap for 2027.

   Source: CMS

2. May 2026 → rollingMedigap filings⚑ Expected — not yet published

   State Medigap rate filings (SERFF)

   Medigap carriers file 2027 rate changes with each state's insurance department on a rolling basis; most increases take effect mid-year (often Jul 1) or Jan 1. We enter filings only once a state publishes them.

   Source: State insurance departments (SERFF)

3. Early June 2026Medicare plan listsConfirmed

   Carriers submit 2027 MA & Part D bids to CMS

   Deadline for plans to file 2027 bids. Nothing public yet — bids feed the fall plan lists.

   Source: CMS

4. Sep 28, 2026Medicare plan listsConfirmed*NEW 2027

   2027 MA & Part D state fact sheets

   CMS publishes state-by-state 2027 averages: plan counts, premiums, and Part D benchmarks. Loaded into our filings data.

   Source: CMS

5. Sep 30, 2026Medicare plan listsConfirmed*NEW 2027

   2027 Medicare plan landscape files (every county)

   The official county-level plan list for all 50 states + DC. Already loaded here — compare plans by county on the Medicare map.

   Source: CMS

6. Oct 1, 2026Medicare plan listsConfirmed*NEW 2027

   Medicare Plan Finder goes live for 2027

   Plans may begin 2027 marketing; Medicare.gov's Plan Finder shows 2027 plans by ZIP code.

   Source: Medicare.gov

7. Early–mid October 2026Medicare plan lists⚑ Expected — not yet published*NEW 2027

   2027 Medicare star ratings

   CMS publishes 2027 star ratings separately from the landscape files. Plan pages here add stars once posted.

   Source: CMS

8. Oct 15 – Dec 7, 2026Medicare plan listsConfirmed*NEW 2027

   Annual Enrollment Period for 2027 coverage

   Beneficiaries can switch Medicare Advantage or Part D plans; changes take effect Jan 1, 2027.

   Source: Medicare.gov

9. Late October 2026Medicare plan lists⚑ Expected — not yet published*NEW 2027

   2027 ACA marketplace plan lists (HealthCare.gov states)

   The federal QHP landscape file — carrier and county-level marketplace participation for 2027 — typically posts just before open enrollment. Drives the carrier lists on our state map panels.

   Source: CMS CCIIO

10. November 2026Medicare costs⚑ Expected — not yet published

    2027 Part B premium, deductibles & IRMAA brackets

    CMS announces the standard Part B premium, Part A/B deductibles, and income-related surcharges each fall.

    Source: CMS

11. Jan 1, 2027Medicare plan listsConfirmed*NEW 2027

    2027 coverage takes effect

    All 2027 Medicare Advantage, Part D, and confirmed Medigap rate changes are in force.

    Source: Medicare.gov

12. Early 2027Medicare costs⚑ Expected — not yet published

    Extra Help & Medicare Savings Program limits

    SSA and states publish 2027 income/resource limits with the new federal poverty guidelines.

    Source: SSA

Confirmed date Expected window (flagged until official figures publish)