Where's My Amended Return

You can check the status of an amended return around 3 weeks after you submit it. You should generally allow 8 to 12 weeks for your Form 1040-X to be processed. However, in some cases, processing could take up to 16 weeks. You can visit our processing status dashboard for more information on our timeframes.

Where’s My Amended Return will show your amended return status for this tax year or up to 3 prior years.

Check your amended return
What you need
Social Security number
Date of birth
ZIP Code

https://www.irs.gov/filing/wheres-my-amended-return