Tax Basics
US Tax Mini-Encyclopedia: What Is an ITIN?
People often ask what an ITIN is, how it differs from an SSN, and how to apply. Let's start with the basics — what an ITIN actually does.
People often ask what an ITIN is, how it differs from an SSN, and how to apply. Let's start with the basics — what an ITIN actually does.
ITIN stands for Individual Taxpayer Identification Number. In plain words: it is a dedicated tax-filing number for individuals who file US taxes but do not have a Social Security Number (SSN).
It is a number issued by the IRS (Internal Revenue Service) specifically to track the tax situation of non-residents and resident aliens with income in the US.
Mainly, it helps individuals comply with US tax law and ensures that returns and payments are processed and recorded efficiently. Importantly, an ITIN is not restricted by immigration status — both tax-law residents and non-resident aliens must file in the US under the Internal Revenue Code.
Its core mission is in the tax-filing area — don't expect it to do more than that.
If you file US taxes or earn US income, an ITIN is the first building block. You can apply for an ITIN tax number online without a US address or US residency.
Your ITIN application, professionally prepared by an acceptance-agent qualified specialist and shipped to the IRS in as little as one day.
Apply for ITIN Tax Number Online Now