What financial steps should I take in my first year as a new U.S. immigrant?

Start by nailing down your tax residency status, since it drives everything: determine whether you meet the green-card or Substantial Presence Test, identify your residency start date, and confirm whether you'll file Form 1040 or 1040NR. Then build the basics—get an SSN or ITIN, open U.S. bank and brokerage accounts, update W-8BEN or W-9 forms with payers, and check your W-4 so paycheck withholding is right. Decide whether to elect full-year resident or joint-return treatment if you're married, and gather records of any foreign income and foreign taxes paid for the Foreign Tax Credit. Finally, learn the FICA and totalization-agreement rules that affect your paycheck. Doing this early prevents costly first-year filing mistakes. The immigrant-readiness assessment at wealthserene.com/assessments/immigrant-readiness gives you a structured checklist tailored to newcomers.