The time it takes depends to process the Injured Spouse form depends on how Form 8379 is filed.
Per the IRS, if you file Form 8379:
- On a joint return e-filed – 11 weeks
- On a joint return filed by mail – 14 week
- By itself after the joint return has been processed – 8 weeks
https://www.irs.gov/help-resources/contact-your-local-irs-office
https://www.irs.gov/help-resources/telephone-assistance
