Employers that sponsor group health plans have a new set of price-transparency deadlines to manage. On October 6, 2026, the Departments of Labor, Health and Human Services, and the Treasury published final rules that revise the federal Transparency in Coverage requirements.
The rules apply directly to non-grandfathered group health plans and health insurance issuers. This article is therefore most relevant to employers that sponsor non-grandfathered group health plans; an employer should confirm each plan's grandfathered status from the governing plan records rather than assume that status. For most employers, insurers, third-party administrators, pharmacy benefit managers, and technology vendors will perform much of the technical work. But outsourcing production of a file is not the same as allocating regulatory responsibility—particularly for a self-funded plan.
The practical task for a small or midsize employer is therefore not to become a data engineer. It is to identify which rules apply, put responsibility in writing, require reliable reporting from vendors, and make sure the plan can substantiate any required attestation.
Key takeaways
The 2026 final rules revise existing requirements rather than create the entire transparency framework from scratch.
Certain participant-facing requirements apply for plan years beginning on or after January 1, 2027.
Revised in-network and out-of-network machine-readable file requirements, including attestations, generally apply beginning March 6, 2027; the first quarterly files are due April 1, 2027.
Additional taxonomy, utilization, text-file, and website-link requirements phase in later.
A fully insured plan can shift regulatory responsibility to its issuer through the written agreement described in the rules.
A self-funded plan may hire a third-party administrator to perform the work, but the plan generally remains responsible if that vendor fails to comply.
Technical specifications are still being developed, making contract governance and vendor follow-up especially important.
What the rules change
Under the 2020 Transparency in Coverage rules, most non-grandfathered plans and issuers already must publicly disclose extensive pricing information through machine-readable files and provide personalized cost-sharing information through an online tool and, upon request, on paper.
The 2026 final rules revise that framework. Among other changes, they:
restructure the in-network rate and out-of-network allowed-amount files;
reduce the posting frequency for those files from monthly to quarterly;
require a single, nonproprietary open format specified by federal guidance;
add contextual taxonomy, utilization, and text files;
require an attestation addressing the completeness and accuracy of specified files;
require improved access to personalized cost-sharing information by telephone; and
add a standardized link on a plan's or issuer's public website to help users find the files.
The new attestation is particularly important. Each covered pricing file must identify a chief executive officer, president, or designated senior official who oversees the encoding of accurate and complete information. A plan may arrange for an insurer or administrator to attest on its behalf when the required written agreement is in place. The employer should nevertheless avoid treating the attestation as a ceremonial vendor form. The designated person needs a reasonable diligence process and information from those who actually assemble and validate the data.
The deadlines are staggered
The rules do not use one universal effective date.
For plan years beginning on or after January 1, 2027, plans and issuers must follow the revised participant-facing cost-sharing requirements. The rules require cost-sharing estimates and related disclosures to be available by telephone using the customer-assistance number on the participant's plan identification card. The participant must be able to receive information that is accurate at the time of the request.
Beginning March 6, 2027, the revised in-network rate and allowed-amount file requirements, standardized format rules, and attestations generally apply. Federal implementation guidance states that the first updated quarterly files are due April 1, 2027, followed by July 1, October 1, and January 1 disclosures.
Beginning September 6, 2027, the later contextual-file and website-link provisions generally apply. The first taxonomy and text files are due October 1, 2027. A utilization file is first due July 1, 2028. The text file must help users locate the pricing files and generally must be updated within seven calendar days when its required information changes.
The prescription-drug file follows a separate schedule. The Departments expect to finalize its technical schema around May 2027 and require initial publication in December 2027, with monthly updates thereafter.
These dates should be confirmed against the plan's structure, status, and current agency guidance. Until each applicable transition date, existing Transparency in Coverage requirements continue.
Fully insured and self-funded plans face different delegation risk
The distinction between fully insured and self-funded coverage matters.
For a fully insured group health plan, the rules provide a special path to avoid duplication. If the plan sponsor enters into the required written agreement under which the insurer will provide the disclosures in compliance with the rule, the insurer—not the plan—is treated as violating the disclosure requirement if the insurer fails to perform.
For a self-funded plan, the employer may contract with a third-party administrator, pharmacy benefit manager, clearinghouse, or other provider to prepare and publish the information. But the rule generally provides that the plan remains in violation if that service provider fails to comply. A contract can allocate costs, cooperation duties, and remedies between the parties, but it does not necessarily eliminate the plan's regulatory exposure.
That is why the written agreement should address more than a general promise to “comply with applicable law.” Depending on the arrangement, the employer should consider provisions covering:
which party prepares, validates, attests to, hosts, and updates each file;
applicable deadlines and technical schemas;
the identity and support provided to the designated attester;
correction procedures when data or links are incomplete;
evidence of timely publication and validation results;
audit and information-access rights;
cooperation with regulator or participant inquiries; and
responsibility for losses arising from nonperformance.
The precise terms are negotiable and plan-specific. The central point is that operational ownership should be visible in the contract rather than assumed from the vendor relationship.
Do employers need a new link on the company website?
Not necessarily. The final rule refers to the public website maintained by the group health plan or issuer. The preamble states that the footer-link requirement does not, merely by itself, apply to a separate website maintained by the employer or plan sponsor.
If the plan or issuer maintains a public website, the required footer link must be labeled “Price Transparency” or “Transparency in Coverage” and lead directly to the page hosting the machine-readable-file links. If the files are hosted by a service provider, the plan or issuer may use a written agreement for hosting, but a plan or issuer with its own public website generally must still link to the hosted location.
Employers should identify whose website is legally and operationally being used before directing an IT team to add—or omit—a link.
A practical preparation plan
Identify the plan. Confirm whether each medical plan is grandfathered or non-grandfathered, fully insured or self-funded, and the applicable plan year.
Inventory responsible vendors. Map the insurer, administrator, pharmacy benefit manager, network owner, clearinghouse, hosting provider, and cost-estimator vendor.
Read the contracts. Locate the existing Transparency in Coverage language and determine whether it creates the written delegation and responsibility allocation required by the rules.
Request a written implementation plan. Ask each responsible vendor for its deadlines, schema-development plan, validation process, attester, hosting location, and correction workflow.
Test participant access. Confirm the online estimator works and that the customer-service number on the identification card can provide accurate cost-sharing information when the 2027 plan year begins.
Establish attestation governance. Decide who will receive validation results, review exceptions, approve corrections, and support the person whose name is encoded in the file.
Calendar each phase. Track January 1, March 6, April 1, September 6, October 1, December 2027, and July 1, 2028 as applicable.
Document oversight. Preserve vendor confirmations, agreements, testing results, meeting notes, and evidence of timely disclosures.
The rules create a useful opportunity as well as a compliance obligation. Better pricing data may help plan sponsors compare provider rates, evaluate administrator performance, and make more informed benefit-design decisions. Employers that build the governance process now will be better positioned both to comply and to use the information strategically.
Jewell Law Group assists businesses with benefits-vendor agreements, compliance responsibility matrices, HR policies, governance procedures, and related risk management.
Primary sources
Departments of the Treasury, Labor, and Health and Human Services, Transparency in Coverage Final Rules, 91 Fed. Reg. 63748 (Oct. 6, 2026)
U.S. Department of Labor, FAQs About Affordable Care Act Implementation Part 75
Centers for Medicare & Medicaid Services, 2026 Transparency in Coverage Final Rules fact sheet
Centers for Medicare & Medicaid Services, Health Plan Price Transparency public-data guidance
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