You can check the status of your amended return by calling 866-464-2050 three weeks after you file your amended return for the current year and up to three prior years.
You must enter your social security number, date of birth, and ZIP code in to prove your identity. As a reminder, amended returns take up to 16 weeks to process and up to three weeks from the date of mailing to show up in the IRS system. Before that time, there's no need to call the IRS unless specifically told to do so.