The Trump administration has introduced new guidelines aimed at enlisting banks in its immigration crackdown, particularly targeting undocumented immigrants. These measures, part of an executive order signed by President Trump, do not explicitly mandate banks to collect citizenship information, a provision the banking industry had actively resisted. Instead, the administration has framed these actions as a crackdown on fraud and crime, encouraging banks to identify and report suspicious activities.

Key changes include expanded reasons for banks to share information, now encompassing indicators historically linked to immigration status, such as the use of Individual Taxpayer Identification Numbers (ITINs), which are frequently used by undocumented immigrants. The Treasury Department has also widened the system for banks to share information with each other in real-time, building on existing Patriot Act provisions for suspected money laundering or fraud. While the administration asserts that banks are not being asked to act as immigration officers, critics argue these policies come close to that outcome.

In addition to these Treasury Department advisories, the Consumer Financial Protection Bureau (CFPB) released guidance permitting financial institutions to consider a client's immigration status when assessing their ability to repay loans. This guidance cites the Truth in Lending Act and its implementing Regulation Z, stating that potential deportation could disrupt a borrower's U.S.-based income. The CFPB's advisory lists 'red flags' for banks, including falsifying Social Security numbers and cashing significant volumes of checks from industries associated with undocumented labor, such as agriculture and construction. This move has drawn criticism from consumer advocates, who argue that such policies risk marginalizing qualified borrowers from mainstream financial services.

Separately, the Treasury Department reclassified certain refundable tax credits as "federal public benefits," effectively barring some immigrant taxpayers from receiving them, even if they file and pay taxes. Immigration advocates have expressed concerns that these policies will push undocumented immigrants out of the formal financial system, increasing the number of "unbanked" individuals. The administration maintains that these actions are about identifying risk and illicit activity within the financial system, rather than an explicit immigration enforcement mandate for banks.