The American tax system treats new immigrants as it treats everyone else — with the same complexity, the same obligations, and none of the special orientation that the complexity warrants.
The Resident Alien Tax Position
The new immigrant who enters the United States on an immigrant visa is a lawful permanent resident from the moment of admission — and for tax purposes, becomes a resident alien subject to American income tax on worldwide income from that moment. The transition to resident alien tax status is not a gradual process and does not correspond to a calendar year boundary: the immigrant who arrives in August is a resident alien for the remaining months of that tax year, filing a dual-status return that combines non-resident and resident alien periods. The complexity of dual-status year tax filing — the different income inclusion rules, the different standard deduction availability, the different eligibility for certain tax credits — is among the more specialised areas of American tax law and the one for which generic tax preparation software and general tax guidance is least adequate.
The ongoing tax obligations of lawful permanent residents include the worldwide income reporting requirement — all income from all sources globally must be reported on the American tax return — and the FBAR requirement — the Report of Foreign Bank and Financial Accounts — which requires reporting of foreign financial accounts with aggregate balances exceeding ten thousand dollars at any point in the year. The FBAR requirement is separate from the tax return, has separate deadlines and penalties, and is unknown to a significant fraction of the permanent residents who are required to file it. The penalty for non-wilful FBAR violations is significant; the penalty for wilful violations is severe.
The tax architecture for new arrivals is the existing tax architecture, applied from the moment of arrival without modification, orientation, or special provision for the complexity that arrival creates. Understanding it is a practical necessity whose cost of ignorance is specific, measurable, and avoidable with the right guidance at the right time.
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