global Tax Changed Your U.S. Tax Status? Don't Forget Your U.S. Investment and Bank Accounts October 06, 2026 A change in U.S. tax residency can have implications far beyond your tax return, including how your bank or brokerage account is classified, what forms you receive and how income and withholding are reported to the IRS. Here’s what you should know. Quick Takeaways A change in U.S. tax status can require updates to your bank and brokerage accounts in order to facilitate proper US tax reporting.Becoming a U.S. person generally means replacing Form W-8BEN with Form W-9.Conversely, ceasing to be a U.S. person may require replacing Form W-9 with a Form W-8BENFailing to update your financial institution can cause withholding and reporting mismatches, additional filing requirements, delayed refunds and IRS correspondence.Financial institutions may have their own account restrictions and reporting requirements when your residency or tax status changes. Why this mattersYour investment or bank account does not automatically know when your tax status changes. Think of it as a two-way street: non-U.S. persons can become U.S. persons, and U.S. persons can become non-U.S. persons. Whichever direction you are traveling, there is an important road sign along the way: Stop! Notify your financial institution. "This detail can easily be overlooked during a significant change in tax status. I’ve seen clients complete the tax steps correctly but fail to update their bank or brokerage accounts, only to encounter problems months later when their account information & tax reporting no longer align. Updating your financial institutions at the outset can help avoid a much more complicated issue down the road." - Kristen Howze When a non-U.S. person becomes a U.S. personA non-U.S. person may maintain a U.S. brokerage account using Form W-8BEN to establish foreign status. If that individual later becomes a U.S. tax resident, obtains a green card or otherwise becomes a U.S. person, the W-8BEN is no longer accurate. The individual should notify the financial institution and, generally, provide Form W-9. The IRS generally requires notification within 30 days of the change in circumstances.A common problem we seeIf the account is not updated, the custodian may continue to treat the individual as a foreign person. This can result in withholding and information reporting that do not align with the taxpayer's U.S. tax return.For example, the custodian may issue a Form 1042-S and withhold U.S. tax under the foreign-person rules. The taxpayer may then report the income and claim the withholding on Form 1040. If the IRS cannot match the withholding to the taxpayer's U.S. return, the taxpayer may face delays, requests for documentation or difficulty obtaining the expected refund.In short: the tax may have been withheld, but that does not mean the IRS will automatically give the taxpayer credit for it.When a U.S. person becomes a non-U.S. personThe same issue can occur in reverse. A U.S. citizen who relinquishes citizenship or a green card holder who abandons long-term U.S. residency may become a non-U.S. person for U.S. tax purposes. Expatriation also brings additional U.S. tax filing requirements, including Form 8854 in applicable cases.However, completing the expatriation process does not automatically update the taxpayer's brokerage account.If the custodian continues to treat the individual as a U.S. person, it may continue reporting investment income to the IRS under the taxpayer's SSN. The former U.S. person may then receive information reporting that appears inconsistent with their post-expatriation filing obligations.No U.S. withholding does not mean no U.S. reporting. The IRS may still receive information about the account and expect the taxpayer's filings to reconcile with that information.Don't forget the financial institutionWhen your U.S. tax status changes, make updating your financial accounts part of the process.If you become a U.S. person:Notify your U.S. custodian or financial institution. Determine whether you need to provide Form W-9. Replace any outdated Form W-8BEN. Confirm how the account will be reported going forward. Keep copies of Forms 1042-S, 1099s and other documentation. If you cease to be a U.S. person:Notify your custodian of the change. Provide the appropriate Form W-8 or other documentation, including any applicable treaty claim that may reduce the default 30% withholding rate.If you are a covered expatriate with certain deferred compensation, specified tax-deferred accounts, or interests in a non-grantor trust, determine whether Form W-8CE is required. The form is generally due to the payer by the earlier of the day before the first applicable distribution after expatriation or 30 days after the expatriation date.Confirm that the custodian has updated your tax classification. Determine what information reporting you should expect for the year of the change. Other considerationsChanging your U.S. tax status can also affect matters beyond federal withholding, including:Account restrictions: Some financial institutions restrict accounts for non-U.S. residents. State tax residency: Ending U.S. federal tax residency does not necessarily end state residency or domicile. FATCA: Becoming a U.S. person can trigger additional reporting considerations for foreign financial accounts and affect how foreign financial institutions treat the account. Information reporting: Depending on the taxpayer's status, the custodian may issue different forms, including Forms 1099 and 1042-S. Importantly, Form 1042-S may be required even when no U.S. tax is withheld. Your tax status may change overnight but our financial institution's records will not. When you become or cease to be a U.S. person, remember to update your financial institutions along with your tax filings. A few administrative steps at the time of the change can help prevent significant headaches (and costs) later.
