Transparency in Coverage Rules for Employers.
The federal agencies finalized updates to the Transparency in Coverage rule in October 2026. Most of the work falls on issuers and administrators, but the plan sponsor is still responsible. This is general information, not legal or tax advice.
What Applies When.
The final rule takes effect December 7, 2026 and phases in through July 2028.
January 1, 2027
For plan years beginning on or after this date, personalized cost-sharing information must be available by phone using the number on the ID card.
March 6, 2027
Revised in-network and out-of-network files, a single JSON format and executive attestation begin.
April 1, 2027
In-network and out-of-network files move to quarterly updates. The prescription drug file stays monthly.
September 6, 2027
New taxonomy files are due.
Before October 1, 2027
New text files with point-of-contact information are due.
July 1, 2028
New utilization files listing paid providers are due.
What Employers Should Do.
Review your contracts with the issuer or third-party administrator, confirm who posts the files and signs the attestation, and ask for written confirmation. Self-insured employers carry the most exposure.
Review Contracts
Confirm which party handles file posting, updates and attestation.
Check Liability
Insured plans can shift liability to the issuer in writing. Self-insured plans cannot.
Ask for Evidence
Request confirmation that the new files and phone access will be ready on time.
Laws and Rules Referenced
Transparency in Coverage Final Rule (Federal Register, October 6, 2026) — The final rule, as published.
Transparency in Coverage Proposed Rule (Federal Register, December 23, 2025) — The proposal the final rule updates.
Where the plan sponsor still has work to do.
Even when issuers and administrators produce the files, the plan sponsor stays responsible for the plan. That makes the practical question one of oversight: does your contract with the carrier or administrator say who publishes what, what happens if they miss a date and what evidence you can ask for that the work was done? Those answers are in the agreement, not the rule.
A sensible approach is to ask your carrier or administrator for a short written statement of how they will meet each requirement and when. File it with your plan records, and revisit it as the phased dates approach. Details of the rule may be refined, so confirm applicability and timing with your counsel; this page is general information, not legal advice.
Quick Answers.
Short answers to what employers ask most. This is general information, not legal or tax advice.
What changed in the Transparency in Coverage rule?
The Departments of Health and Human Services, Labor and the Treasury finalized updates on October 5, 2026. The rule changes the machine-readable files plans and issuers post, and adds phone access to personalized cost-sharing information.
When does it take effect?
The final rule takes effect December 7, 2026. Its requirements apply in stages through July 2028.
Who is responsible for compliance?
Insured plans can shift liability to the issuer in a written agreement. Self-insured plans remain liable if a third-party administrator fails to comply, so contracts should say who handles posting, updates and attestation.
Do current rules still apply?
Yes. Existing requirements continue until the new provisions take effect.
Do we have to post any files ourselves?
In many arrangements the carrier or administrator handles it, but the contract determines who is responsible. Ask your counsel to review the agreement.
How do we know our administrator is compliant?
Ask for written confirmation of how they meet each requirement and when, and keep it with your plan records.
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