An IRA fills the gap when your US employer has no 401(k), or when you want savings beside payroll deferrals. It is a tax-advantaged account, not a government pension enrollment desk.
How do you open one?
Choose a US bank, credit union, or brokerage that offers traditional and Roth IRAs. Apply with identity documents, a US address, and usually an SSN. Some custodians discuss ITIN scenarios, but many retirement products expect an SSN for wage-linked contribution tests: Get an SSN and Get an ITIN.
Fund the account by transfer from a US bank account you already control: Open a bank account. Pick investments from the custodian’s menu. Contribution limits and income phase-outs change; use current IRS IRA pages rather than memorizing one year’s dollar cap.
How does an IRA differ from a 401(k)?
A 401(k) is employer-sponsored and funded by payroll: Set up a 401(k). An IRA is yours to open even without a workplace plan. Some people use both when eligible. Tax filing still reports contributions and conversions: File federal taxes and Set up an IRS online account.
Budget IRA contributions only after rent, insurance, and emergency cash are real: Monthly budget.
Common misconceptions
Assuming every newcomer can max an IRA in year one fails when earned-income and status rules do not support contributions.
Assuming an IRA replaces employer match money also fails; capture a 401(k) match first when one exists.
Summary
Open an IRA at a US custodian after you have a tax ID and bank account, then choose traditional or Roth with current IRS limits in view. Use it beside, not instead of, a good workplace 401(k) when both are available.
Sources
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