Runaway illegal immigration costs American taxpayers some $150 billion every year, according to a November analysis from Republicans on the House Homeland Security Committee.

The report from the Republican lawmakers criticized Homeland Security Secretary Alejandro Mayorkas for presiding over the record illegal immigration. The report referenced one analysis from the Center for Immigration Studies which found that the annual cost of illegal immigration could amount to $451 billion, while another analysis from the Federation for American Immigration Reform estimated a $150 billion annual burden on federal and state budgets.

“Few studies exist to demonstrate the comprehensive scope of the overall federal and state costs of the ongoing crisis and mass illegal immigration,” the lawmakers said. “Americans must rely on a patchwork of federal and state records, media reports, and other publicly available information to gain even limited insights into the costs illegal aliens represent.”

The cost study from the Federation for American Immigration Reform calculated that the federal agencies spend more than $66 billion on illegal immigration every year, while state and local governments spend nearly $116 billion. Illegal immigrants pay $31 billion annually to the tax system, meaning that they inflict some $150 billion in costs every year on government agencies.

Republicans pointed to healthcare as a significant driver of expenditures related to illegal immigration: beyond efforts to provide healthcare to illegal aliens enacted by New York City and the state of California, illegal aliens accounted for one-quarter of the uninsured population one decade ago, a figure which has increased with several years of additional illegal immigration. The report added that “many illegal aliens often rely on emergency rooms and services as a source of free or cheap healthcare” because of laws requiring such facilities to offer emergency medical services regardless of capacity to pay, thereby raising costs for providers and patients.

Robert Trenschel, the chief executive of Yuma Regional Medical Hospital in Arizona, noted to lawmakers earlier this year that more than three times as many people have crossed the border in Yuma relative to the number of residents. “Some migrants come to us with minor ailments but many of them come in with significant disease,” he remarked. “We have had migrant patients on dialysis, cardiac catheterization and in need of heart surgery. Many are very sick.”

Beyond the increased medical expenses, additional expenditures on state and federal education initiatives, law enforcement actions, and welfare programs contribute to the overall expense of rampant illegal immigration into the United States.

The analyses come as the Biden administration presides over record illegal immigration and drug trafficking over the southern border, as well as increasing levels of illegal movement over the northern border. Customs and Border Protection has encountered more than 7.5 million individuals at the two borders since President Joe Biden assumed office.