Banks become immigration enforcers under new citizenship verification mandate
S. 4206 — Know Your American Customer Act · Filed by Tom Cotton (R-AR) · Introduced Mar 25, 2026 · Referred to committee
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What it does
This bill requires banks and credit unions to verify that customers are U.S. citizens or have legal immigration status before opening or maintaining accounts. Customers with temporary legal status (like visa holders) must provide proof of their authorized stay and face account restrictions or closure if their status expires and they don't update their documentation. The bill creates civil penalties for institutions that fail to comply and criminal penalties (up to $1 million fine and 1 year imprisonment) for undocumented immigrants who open accounts.
Why we flagged it
The bill's core mechanism is to weaponize the banking system as an immigration enforcement tool by requiring financial institutions to verify citizenship/legal status and deny or restrict accounts based on immigration status. This is functionally an immigration control measure, not a banking regulation.
What the text implies
- Undocumented immigrants may resort to cash-only transactions or unregulated financial services (money lenders, informal remittance networks), reducing financial transparency and increasing vulnerability to fraud and exploitation.
- The 30/60-day grace period for temporary visa holders creates a 'financial cliff' — accounts freeze automatically unless individuals proactively update documentation, potentially trapping funds during bureaucratic delays in status renewal.
- Banks face significant compliance costs and liability exposure; the 'good faith' safe harbor is narrow and may not protect institutions from civil penalties or litigation, likely increasing account-opening friction and fees for all customers.
- The bill preempts state law (Section 8), preventing states from offering more permissive banking access policies and centralizing immigration enforcement through federal banking regulation.
- Criminal penalties of up to $1 million and 1 year imprisonment for undocumented immigrants who maintain accounts create a chilling effect on financial inclusion even for those with pending asylum claims (who are exempted but may fear prosecution).
Section numbers refer to the bill text the analysis read — linked under Primary records below.
Who it affects
Ordinary citizens without legal immigration status lose access to banking services, creating barriers to employment, housing, and financial stability. Citizens with temporary legal status face account restrictions and closure risk. While the bill aims at immigration enforcement, it imposes significant costs on vulnerable populations and creates compliance burdens on financial institutions that may be passed to all customers.
Named in the bill
Department of the Treasury, Financial Crimes Enforcement Network (FinCEN), Department of Homeland Security, National Credit Union Administration, Insured depository institutions, Insured credit unions, Federal Deposit Insurance Act, Federal Credit Union Act, Immigration and Nationality Act, REAL ID Act of 2005
Where it stands
- Mar 25, 2026 — Introduced · Congress.gov: “Introduced in Senate”
- Mar 25, 2026 — Referred to Senate Committee on Banking, Housing, and Urban Affairs · Congress.gov: “Read twice and referred to the Committee on Banking, Housing, and Urban Affairs”
Dates and quoted wording are Congress.gov's action record; the timeline shows status changes, not every procedural step.
Money around this bill
2 lobbying clients named this bill on 2 disclosure filings across 1 quarter, Jun 2026 to Jun 2026. Those filings disclosed $410,000 in lobbying spend. A filing names 31 bills on average, so that figure is what each filing reported, not a share belonging to this bill.
More lobbying clients named this bill than 41% of bills with at least one filing.
Tom Cotton, the sponsor, reported $1,292,206 in PAC receipts in the 2026 cycle.
- American Heart Association — $400,000 on 1 filing
- Act for America — $10,000 on 1 filing
Lobbying Disclosure Act filings through Jul 20, 2026. A filing shows who paid to lobby on a bill it names, not what changed.
How this was measured
Analysis — Quorum's AI read the bill text published by Congress.gov (13,131 characters) on Aug 31, 2026. Section numbers in the findings refer to that text, linked below; transparency and hidden-provision scores are compared against the median of 16,222 analysed bills.
Status and sponsors — Congress.gov's bill record — actions, committee referrals and cosponsors — loaded nightly. The timeline shows status changes, not every procedural action.
Money — Senate Lobbying Disclosure Act filings whose specific-issue field names this bill for quarters ending Jun 2026 to Jun 2026. A filing's amount is reported whole beside the median number of bills a filing names; it is never divided across them. PAC receipts are FEC-reported contributions to the sponsor's candidate committee in the 2026 cycle.
As of — lobbying records through Jul 20, 2026 · page rendered 2026-10-20.
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