ITIN Guides & Resources
Practical guides for non-U.S. residents on ITIN applications, Form W-7, U.S. tax filing, and payment platform compliance.
Why ITIN Application Security and Service Quality Matter More Today
Not all ITIN services are equal. This guide explains why IRS certification, document security, and service quality matter when choosing an ITIN provider — and what to look for.
ITIN Application Guide: How to Submit an IRS-Compliant Passport Copy
The IRS has strict requirements for passport copies submitted with Form W-7. This guide explains exactly what is needed — and how to avoid document errors that delay your ITIN.
How to Call the IRS to Check Your ITIN Status and Number
A practical phone guide for checking your ITIN application status, asking for your ITIN number, and requesting a resent ITIN notice letter.
What Is an ITIN? Complete Guide for Non-U.S. Residents
An ITIN is a U.S. federal tax ID for people who need a taxpayer identification number but are not eligible for an SSN. Learn who needs one, when Form W-7 is required, and how long the IRS takes.
How to Set Up a US Mailing Address for Your ITIN Letter
Why ITIN applicants should use their own US address, a free comparison of Stable vs UsePostal, and a 5–10 minute setup walkthrough — with a real fraud warning.
UsePostal US Virtual Address for ITIN Applicants
Step-by-step guide to setting up a UsePostal US virtual address to receive your IRS ITIN letter — free for 6 months with the Stripe Atlas referral.
Stable US Address for Receiving Your ITIN Letter
How to set up a Stable US virtual address to receive your IRS ITIN letter — free for the first 2–3 months, plus the billing traps to avoid.
Can Chinese, Russian, or Iranian Residents Apply for a U.S. ITIN?
Residents of China, Russia, Iran, and other countries often wonder if their nationality affects ITIN eligibility. The short answer: ITIN eligibility is based on tax obligation, not citizenship or sanc
