Employers face parity risks over mental health carveouts
NEW YORK, UNITED STATES — A new federal report is putting United States employers on notice over how they structure mental health benefits. The Employee Benefits Security Administration told Congress that companies using separate vendors to administer mental health and medical benefits — known as carveout arrangements — rarely verify whether the two are truly comparable under federal parity law.
According to a report from BenefitsPro, between August 1, 2023, and July 31, 2025, EBSA issued 42 letters demanding comparative analyses, with many submissions coming back weak or incomplete. For business leaders, the message is direct: outsourcing benefits administration does not outsource accountability.
Why mental health carveouts are creating compliance gaps
The structural problem sits inside how most employer health plans are built. Companies often hire one vendor for medical benefits and another for behavioral health, then assume each side is handling parity compliance on its own.
The result is fragmented oversight, missed updates and benefits that quietly fall out of sync — exposing employers to enforcement letters and reputational damage.
“Plans with these carveout arrangements rarely obtained a complete comparative analysis from either service provider, especially where the service providers were not communicating with each other,” EBSA officials said, describing the future as plain.
That sentence reframes the conversation for U.S. executives. The carveout model that once felt efficient now operates as a compliance blind spot, and the burden of fixing it falls squarely on the employer.
The compliance burden sits with the employer, not the vendor
Many self-insured U.S. employers learned the hard way that signing with a third-party administrator does not transfer legal responsibility. EBSA flagged enforcement cases including one where a plan administrator updated claim-processing systems for medical benefits but failed to do the same for mental health benefits.
Even with the Trump administration shifting toward education over prosecution, the agency still expects active oversight from employers and plan sponsors.
The report stated that some employers “were surprised to find that responsibility for MHPAEA compliance lies with the plan, not their service provider.” For U.S. business leaders, that line redefines the risk profile of every benefits contract on the books.
It also points to a real opening for outsourcing firms. Companies struggling to audit, compare and document parity between mental health and medical benefits need partners who can deliver compliance reviews, comparative analysis support and benefits administration oversight at scale.
Outsourcing providers that build expertise in MHPAEA documentation, vendor coordination and parity auditing will capture contracts from American employers determined to stay compliant without overloading internal HR teams. The future of work belongs to companies that protect their workforce and their compliance posture at the same time — and to the partners helping them do both.
