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Blue Star Bookkeeping · Austin, TX · Updated February 5, 2026

How to Apply for an ITIN in Austin — Step by Step

An ITIN (Individual Taxpayer Identification Number) is a tax processing number issued by the IRS to people who need to file a U.S. tax return but are not eligible for a Social Security number. Applying involves completing Form W-7 with supporting identity documents and submitting it along with a federal tax return in most cases.

Who typically needs an ITIN

Someone filing a U.S. tax return who is not eligible for a Social Security number, a spouse or dependent listed on someone else's return, or a person who needs to file for other IRS-related reasons.

What the application requires

A completed Form W-7 and original or certified copies of identity documents (most commonly a passport). The application is generally submitted together with the federal tax return it supports, unless an exception applies.

How our office can help

We help prepare the Form W-7 application and the accompanying tax return, and walk you through what supporting documents the IRS will accept. Processing by the IRS can take a number of weeks and varies by season — current processing times are published on irs.gov.

A note on document verification

The IRS allows certain documents to be verified in specific ways depending on the applicant's situation. If your case requires a specific document-verification path, we will tell you exactly what applies to you during your consultation rather than assuming.

Common questions

Do I need to be at an IRS office in person to apply?

Not necessarily — there are multiple accepted ways to submit an ITIN application. We can walk you through the option that fits your situation.

How long does an ITIN take to arrive?

Processing times are set by the IRS and change by season — we’ll give you the most current estimate at the time of your application rather than a fixed promise.

Related service

ITIN Services

General information for Austin, TX taxpayers — not personalized tax or legal advice. Rules, thresholds, and deadlines change; confirm specifics for your situation with our office or the relevant government agency.

Ready to get started?

Schedule a free 15-minute consultation. We will answer your questions and walk you through the process.