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House subcommittee spotlights GAO flags of potential fraud in ACA premium tax credits
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Summary
A House subcommittee hearing focused on a GAO review that identified program‑integrity weaknesses in the Affordable Care Act premium tax credit program, with GAO citing covert testing and data anomalies while others warned that enforcing stricter rules could strip coverage from millions.
A House subcommittee hearing brought federal auditors and health‑policy researchers to the witness table to discuss program‑integrity concerns in the Affordable Care Act(ACA) advance premium tax credit (APTC) program and what, if any, policy fixes Congress should pursue.
The Government Accountability Office(GAO) told the panel its initial review found persistent weaknesses in enrollment controls and risk management. GAO audit director Mr. Begdoyan said APTC spending totaled about $124,000,000,000 in 2024 and that covert testing enrolled 18 of 20 "ghost" applicants who obtained coverage and subsidies; GAO also cited tens of thousands of Social Security number anomalies, including 66,000 instances in 2024 of SSNs tied to multiple policies and matches with the Social Security Administration death file (58,000 matches in 2023). GAO told the committee it is identifying indicators of potential fraud, not quantifying total fraud or ruling on policy viability.
"The program's complex structure, high levels of participation, spending, and generally weak controls underlie its inherent risks for fraud," Begdoyan testified, summarizing data‑analysis and covert testing results and urging stronger CMS capacity to counter the risks.
Independent research from the Paragon Health Institute, represented by Dr. Brian Blaise, estimated far larger improper‑enrollment volumes. Blaise told the committee his analysis found as many as 6,400,000 fully subsidized enrollees who were not eligible and estimated federal spending on ineligible enrollees could exceed $20,000,000,000 in 2024 and $27,000,000,000 in 2025. Blaise said automatic re‑enrollment and broadened special enrollment periods created opportunities for "phantom" enrollments.
Not all witnesses equated the indicators GAO flagged with the principal cause of rising premiums. Yale health economist Professor Zach Cooper said enrolling Americans in ACA exchange plans reduces mortality and that enhanced subsidies cover roughly 22,000,000 people; he argued the main driver of higher premiums is health‑care price growth (hospital and provider prices), not fraud, and recommended reforms such as site‑neutral billing and stronger antitrust enforcement to lower costs.
Committee members from both parties pressed witnesses about enforcement and remedies. Democrats warned that measures to bar ineligible enrollees or impose fees could produce large coverage losses when enhanced subsidies expire; Republicans urged prompt fraud controls and cited GAO and Paragon data as evidence of systemic vulnerability. Members also noted that some CMS rules intended to curb abuse were stayed by courts, limiting their effect.
No formal votes or legislation were taken during the hearing. Members entered reports and press releases into the record and gave witnesses five legislative days to supply additional written materials and responses.
The hearing record and witness statements show disagreement about magnitude and remedies: GAO reported clear indicators of program‑integrity weaknesses and covert‑testing vulnerabilities, Paragon presented estimates of broad improper enrollment, and academic witnesses stressed the tension between preventing abuse and protecting coverage for millions who rely on subsidies.
