A calm home interior representing a household preparing to file taxes
Filing jointly often means a bigger standard deduction and lower rates.

Key takeaways

  • A nonresident spouse can be included on a joint U.S. return using an ITIN.
  • Filing jointly usually unlocks a larger standard deduction and more favorable brackets.
  • A Certified Acceptance Agent lets you keep original documents instead of mailing a passport.

Many couples assume that a spouse living overseas means a complicated, expensive filing. In practice, the path is well defined, and the payoff is often a lower overall tax bill. Here is the walkthrough we use with clients.

What an ITIN actually is

An ITIN, or Individual Taxpayer Identification Number, is a tax processing number the IRS issues to people who must appear on a U.S. return but cannot get a Social Security Number. It is used only for federal tax purposes, and it lets your nonresident spouse be included on your return.

Why filing jointly helps

When you elect to treat your nonresident spouse as a U.S. resident for tax purposes, you can file married filing jointly. That usually means a larger standard deduction and wider tax brackets than filing separately, which for many couples is a direct reduction in what they owe.

Worth knowing: The joint election means reporting worldwide income for both spouses. We model both scenarios so you can see the net effect before you decide.

Documents you will need

  • Your spouse's valid passport, or two alternative identity documents.
  • A completed Form W-7 (the ITIN application).
  • Your joint federal tax return, which is filed together with the W-7.
  • A signed statement electing to treat the nonresident spouse as a resident.

The Form W-7 process

The W-7 is submitted with your tax return, not on its own. The IRS reviews the application, issues the ITIN, and then processes the return. Because the ITIN and the return are linked, small errors on either one can delay both, which is why the paperwork order matters.

Why a Certified Acceptance Agent matters

Ordinarily you would have to mail your spouse's original passport to the IRS. A Certified Acceptance Agent (CAA) can verify original identity documents in person and submit certified copies instead, so the passport never leaves your hands. As a certified ITIN provider, that is exactly the service we offer.

Timeline and what to expect

ITIN processing typically takes several weeks once the IRS receives a complete package, and longer during peak filing season. Filing early and getting the documents right the first time is the single biggest thing you can do to avoid delays.

Frequently asked questions

What is an ITIN and who needs one?

An ITIN is a tax processing number issued by the IRS to people who must file or be listed on a U.S. return but are not eligible for a Social Security Number, such as a nonresident spouse. It is used only for federal tax purposes.

Can I file jointly if my spouse lives abroad and has no SSN?

Yes. You can elect to treat your nonresident spouse as a U.S. resident for tax purposes and file a joint return. Your spouse applies for an ITIN using Form W-7, submitted together with your joint tax return.

Do I have to mail my spouse's original passport to the IRS?

Not if you work with a Certified Acceptance Agent. A CAA can verify original identity documents and submit certified copies, so you keep the originals instead of mailing a passport to the IRS.

Ready to file with your foreign spouse?

As a certified ITIN provider, we handle the W-7, the documents, and the joint return together.

Start my ITIN
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