How do I check the status of my amended tax return

You can't check the status of amended tax return. IRS takes about 8 to 12 weeks. However after 8 weeks, you can call IRS.

Read: Your U.S. Tax Return: When will I get my tax refund? (http://taxipay.blogspot.com/2008/02/when-will-you-get-your-tax-refund.html)