ITIN Guide
ITIN Application Guide
Apply for an ITIN step by step. Complete Form W-7, gather documents, submit with tax return. Mail to IRS ITIN Operation, Austin TX 78714.
Steps
ITIN Application Steps
- Determine eligibility — You need a US tax ID but cannot get an SSN
- Complete Form W-7 — Select correct reason code
- Prepare tax return — Form 1040 or 1040-NR
- Gather ID documents — Passport or 2 alternative IDs
- Submit — Mail, CAA, or IRS office
- Wait 7-11 weeks — IRS mails ITIN to your address
Where to Mail
IRS ITIN Operation PO Box 149342 Austin, TX 78714-9342
Common Rejections
Common Rejection Reasons
| Reason | Fix | |--------|-----| | Missing tax return | Include 1040/1040-NR | | Wrong reason code | Match your situation | | Photocopies instead of originals | Send originals or use CAA | | Missing signature | Sign Form W-7 | | Name mismatch | Use exact passport name |
Cost
ITIN Application Cost
| Method | Cost | |--------|------| | IRS direct | $0 | | CAA | $50-275 | | Tax preparer | $150-500 | | ein.so | $197 standard / $297 express |
Related: ITIN cost | ITIN number | How to get ITIN
Frequently Asked Questions
How do I apply for an ITIN?
Complete Form W-7, attach a tax return and ID documents, mail to IRS ITIN Operation, Austin TX 78714. Processing: 7-11 weeks.
What documents do I need?
Passport (preferred, standalone) or 2 from: national ID, birth certificate, driver license, US state ID, voter registration card.
How long does the application take?
7-11 weeks. Peak season (Jan-April) takes longer. No expedited option from IRS.
Can I apply online?
No. ITIN applications must be submitted by mail, through a CAA, or in-person at an IRS office.
What if my application is rejected?
Fix the issue noted in the rejection letter and resubmit. Common issues: missing tax return, wrong documents, name mismatch.
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