Yes, you can add a non-U.S. citizen to your bank account. Federal law does not prohibit it, and most major banks will do it as long as the person you’re adding can satisfy identity verification requirements. The real work of adding a non-U.S. citizen to your bank account is paperwork: the bank has to run a Customer Identification Program check before anyone gets access to a domestic account, and how smoothly that goes depends on whether your co-owner is a resident alien or a non-resident alien, what identification they carry, and whether they already have a U.S. taxpayer identification number.
What the Bank Needs to Verify
Federal regulations require banks to collect four pieces of information from every person added to an account: full legal name, date of birth, a residential or business address, and an identification number. For a non-U.S. person, that identification number can be a taxpayer identification number, a passport number with country of issuance, an alien identification card number, or the number from any other government-issued document that shows nationality or residence and includes a photograph.1eCFR. 31 CFR 1020.220 – Customer Identification Program Requirements for Banks
In practice, most banks ask for a valid foreign passport as the primary ID. Some also accept a Matricula Consular card issued by the Mexican government, which qualifies as a government-issued photo document. Secondary identification varies by bank; a foreign driver’s license or a recent utility bill showing a U.S. address are common asks.
The experience depends heavily on which category the person falls into. Resident aliens live in the United States on a more permanent basis, hold a tax home here, and typically carry a Social Security Number or an Individual Taxpayer Identification Number. Banks treat them much like U.S. citizens, and there are usually no extra hurdles. Non-resident aliens are the harder case. They may lack a domestic address, hold only a short-term visa, and have no U.S. tax identification. Banks can still add them, but expect more documentation requests, a longer review, and a sanctions check against the country of origin under programs enforced by the Treasury Department’s Office of Foreign Assets Control.
Your co-owner also needs a U.S. taxpayer identification number, which for most people is a Social Security Number or an ITIN.2Office of the Law Revision Counsel. 26 USC 6109 – Identifying Numbers If they have neither, the bank may still open or update the account while an application is pending, but it has to withhold 24% of any interest the account earns until a valid number is on file.3Internal Revenue Service. Topic No. 307, Backup Withholding Sorting the number out early saves money.
Getting an ITIN If There’s No Social Security Number
Non-citizens who aren’t eligible for a Social Security Number apply for an ITIN by filing Form W-7 with the IRS. The form requires the applicant’s name, foreign address, and a specific reason for needing the number, plus original identification documents or certified copies from the issuing agency.4eCFR. 26 CFR 301.6109-1 – Identifying Numbers
Processing takes about seven weeks under normal conditions, stretching to nine to eleven weeks during tax season (January through April) or when filed from overseas.5IRS.gov. Instructions for Form W-7 There is a useful shortcut. The IRS allows applicants to claim an exception if they have opened an interest-bearing bank account that generates reportable income. Under that exception, the applicant submits a signed letter from the bank on official letterhead confirming the account exists and is subject to information reporting.6Internal Revenue Service. Instructions for Form W-7 (12/2024) In other words, the bank can sometimes add the non-citizen first and the ITIN application catches up. Backup withholding still applies to any interest earned until the number arrives.
What to Expect at the Branch
Plan on an in-person visit. Most banks don’t allow non-citizens to be added to accounts through online portals because a branch officer needs to inspect original documents and witness the signing of the updated account agreement. Bring every document mentioned above, and bring the existing account holder along, since both of you typically need to sign together.
During the appointment, the bank runs a screening check to confirm the person being added isn’t on any sanctions lists. OFAC requires financial institutions to avoid completing transactions with anyone on the Specially Designated Nationals List, and banks are expected to finish their analysis before concluding any account changes.7Office of Foreign Assets Control. Additional Questions from Financial Institutions You may also get questions about the purpose of the joint account, the non-citizen’s source of income, and expected transaction patterns. Standard “know your customer” questions. Not a sign anything is wrong.
Once approved, the bank updates its records and usually issues a new debit card for the co-owner. Some banks finish same-day; others take several business days for internal review.
What Joint Ownership Actually Gives Them
Most bank accounts default to joint tenancy with right of survivorship. That gives the non-citizen co-owner full and equal access to every dollar in the account, regardless of who deposited the money. Either owner can withdraw the entire balance at any time, make transfers, write checks, and close the account. If one owner dies, the surviving co-owner inherits the remaining funds automatically, without probate.
Equal access cuts both ways. If the account goes negative, the bank can pursue either owner for the full deficit plus any overdraft fees. If your co-owner has outstanding debts, a creditor with a court judgment may be able to levy the joint account, even for money you deposited. Some states limit the creditor to the debtor’s share; others allow the creditor to take everything. You may be able to recover your portion by proving which funds you contributed, but that means tracing deposits through bank records after the fact. Funds from protected sources like Social Security or disability benefits generally stay exempt even in a joint account.
The practical takeaway: only share an account with someone you trust completely.
Tax Issues Worth Settling Before You Sign
Non-Citizen Spouses Lose the Unlimited Marital Deduction
U.S. citizens married to other citizens can transfer any amount between spouses tax-free under the unlimited marital deduction. That deduction disappears when the recipient spouse is not a U.S. citizen.8Office of the Law Revision Counsel. 26 USC 2523 – Gift to Spouse Transfers to a non-citizen spouse are instead subject to a special annual exclusion of $194,000 for 2026.9Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026
This matters for joint accounts because a taxable gift generally doesn’t occur when you add a name. The gift happens when the non-contributing co-owner withdraws money for their own benefit. If your non-citizen spouse withdraws more than $194,000 of your funds in a single year, you may need to file a gift tax return. For non-spouse co-owners, the standard annual gift tax exclusion is only $19,000 per person for 2026, a much lower threshold to trip.9Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026
Interest Reporting for Non-Resident Aliens
For co-owners who are non-resident aliens, banks report interest of $10 or more on Form 1042-S rather than the standard Form 1099-INT.10Internal Revenue Service. Instructions for Forms 1099-INT and 1099-OID How that interest is taxed depends on the person’s country of residence and any applicable tax treaty. If you’re adding a non-resident alien to a high-balance savings account, understand the reporting and withholding treatment before you sign.
Getting Someone Off the Account Later
Removing a co-owner is harder than adding one. In most cases, you need the co-owner’s consent, because state law or the account agreement prevents unilateral removal.11Consumer Financial Protection Bureau. Can I Remove My Spouse From Our Joint Checking Account? If the relationship goes bad and the co-owner won’t cooperate, you’re generally stuck unless the bank’s specific terms allow single-owner removal, which is uncommon.
Closing the account is a different matter. In most circumstances, either co-owner acting alone can withdraw the full balance and close the account without the other’s permission.12Consumer Financial Protection Bureau. A Joint Checking Account Owner Took All the Money Out and Then Closed the Account Without My Agreement Your co-owner can legally empty the account before you act. If you’re uncertain about the long-term relationship, keep joint balances modest and hold the bulk of your savings in a separate account in your name alone.