Check the status of your Form 1040X, Amended U.S. Individual Income Tax Return, for this year and up to three prior years.
When to Check
Your amended return will take up to 3 weeks after you mailed it to show up on the IRS system
Processing it can take up to 16 weeks
What you need
Social Security Number
Date of birth
Zip Code
How to find
Visit the irs.gov tool here: Where's My Amended Return
The above irs.gov tool can't access certain amended returns, refer to http://irs.gov for more information.
The IRS telephone assistors don't have any additional information about your amended return while it is processing. Call their toll-free number only when the tool asks you to contact them.