Under normal conditions, the IRS processes a complete ITIN application in about seven weeks. This page focuses purely on timing — if you're looking for tips to avoid delays in the first place, see how to get an ITIN quickly.
Standard processing window
About seven weeks from the date the IRS receives a complete, correctly documented application. This extends to 9–11 weeks during the January–April tax filing peak, or for applications mailed from outside the United States.
What can extend the timeline
- An incomplete or incorrect Form W-7 (restarts the clock after rejection).
- Applying during peak season instead of the rest of the year.
- Mailing from abroad, where delivery time adds on top of processing time.
- Missing or mismatched identity documents.
When to follow up
If the standard window has passed, check your status directly with the IRS rather than submitting a duplicate application, which can create further confusion.
