26-06 - Health Insurance Rate Filings - Filing Dates for Plan Year 2027, April 2, 2026

DEPARTMENT OF COMMERCE AND INSURANCE P.O. Box 690, Jefferson City, Mo. 65102-0690

INSURANCE BULLETIN 26-06 Health Insurance Rate Filings - Filing Dates for Plan Year 2027

Issued: April 2, 2026 The following Bulletin is issued by the Missouri Department of Commerce and Insurance ("Department") to inform and educate the reader on the specified issue. It does not have the force and effect of law, is not an evaluation of any specific facts or circumstances, shall not be considered a statement of general applicability and is not binding on the Department. See § 37 4.015, RSMo (2016).

To: Health carriers writing health insurance or health benefit plan coverage in Missouri

From: Angela L. Nelson, Director

Re: Health Insurance Rate Filing Key Dates (2027 Plan Year)

This Bulletin provides notice to health carriers of key filing dates for health benefit plans that will be offered during 2027, as required by§ 376.465, RSMo (2016) 1 , and 20 CSR 400-13.100. These dates are based on current federal guidance contained in the Patient Protection and Affordable Care Act, HHS Proposed Notice of Benefit and Payment Parameters for 2027; and Basic Health Program, 91 Fed. Reg 6292 (Feb.11,

1 All statutory references herein are to RSMo (2016) unless otherwise noted. 2026), and are subject to change.

In recent plan years, similar bulletins also included technical information. For this plan year, any necessary technical information will be provided separately.

Summary of Filing Timeframes for Plan Year 2027 Type of Plan Filing Timeframe Single Risk Pool – Plans File by June 3, 2026, to meet federal and state guidelines. in Individual and Small Group ACA markets Transitional File at least 60 days prior to use. Filings, which include finalized rates, that are submitted on or before August 12, 2026, will have their reviews prioritized. Filings submitted later than August 12 may have reviews extend beyond the intended implementation date. Grandfathered File at least 30 days prior to use. Student Health Plans File at least 60 days prior to use. Other Health Benefit Plans File at least 30 days prior to use. (Dental, Vision, etc.)

For additional detail regarding the timeframes in the chart above, please see the following sections.

Applicability The rate filing timeframes apply to plan types subject to a determination of “reasonableness” pursuant to § 376.465.7. For ease, this Bulletin will refer to the following plans as “Subsection 7 Plans”: • “Health benefit plans” as defined in § 376.465 (excluding plans sold in the large employer group market); • Individual and small employer group plans subject to the requirements of the single risk pool; • Student health plans; and • Transitional plans.

Section 376.465 specifies the timeframes applicable to rate filings for all other health benefit plans including, but not limited to, grandfathered plans and excepted benefit plans. File Rates for Individual and Small Group ACA Plans No Later than June 3, 2026 The Centers for Medicare and Medicaid Services (CMS) Center for Consumer Information and Insurance Oversight (CCIIO) designated Missouri as an “Effective Rate Review” state in 2017. To retain that status, the Department must ensure rate filings meet federal guidelines. This Bulletin serves to indicate that the Department intends to follow federal filing and posting guidelines to the extent possible under Missouri law.

For Plan Year 2027, proposed rates for Individual and Small Group ACA plans must be submitted to the Department no later than June 3, 2026.

Federal law exempts student health plans from the filing deadlines applicable to single risk pool plans. Likewise, federal guidance indicates that transitional plans have different deadlines than single risk pool plans. However, to comply with Missouri law, rates for student health plans and transitional plans should be filed with the Department at least 60 days prior to the proposed effective date.

Post Proposed Rates for Individual and Small Group ACA Plans – July 31, 2026 Current federal guidelines require “Effective Rate Review” states to publicly post proposed rates for single risk pool plans no later than July 31, 2026. The Department does not intend to publicly post proposed rates earlier than this date.

Optional Quarterly Rate Filings for the Small Group Market Current federal law permits single risk pool plans in the small group market to adjust rates as often as quarterly. As Missouri law does not limit the frequency of rate filings, health carriers may submit quarterly rate filings for small group market plans.

• 2027 Plans: Health carriers should submit rate filings by June 3, 2026. Rate filings for subsequent quarters should be filed at least 60 days prior to the proposed effective date, as required by § 376.465.

Transitional Plan Rate Filings Missouri law does not differentiate between transitional plans and other Subsection 7 plans. Therefore, transitional plan rates must be filed at least 60 days prior to implementation, and are subject to the same standards of review as other Subsection 7 plans. However, while current federal guidance for transitional health plans only requires rate submissions where the proposed rate increase exceeds the federally identified rate review threshold, under Missouri law all transitional plan rate changes must be filed with the Department, regardless of the magnitude or direction of the rate change.

Please note, for transitional plan rate changes that are less than the federal threshold, the Department will not require companies to also file concurrently with CMS per 20 CSR 400-13.100(8).

For Additional Rate Filing Guidance General Instructions are available via the System for Electronic Rate and Form Filing (SERFF) for Missouri. Additional filing guidelines will be posted on the Department’s website and updated as necessary.

Rate Filings for other Health Benefit Plans For filing requirements applicable to grandfathered and excepted benefit plans that are not Subsection 7 plans, please see § 376.465. For dental plans that a health carrier or licensed pre-paid dental plan intends to make available on the exchange, rates must be filed in accordance with § 376.465, or thirty (30) days prior to the intended effective date.

Any questions or comments regarding this Bulletin should be directed to Camille Anderson-Weddle at 573-522-3311 or productfilings@insurance.mo.gov.

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