When you mail Form 1040-X you should include the following forms:
It takes the IRS up to 16 weeks to process amended returns. Also, depending on whether the changes affect your numbers, you may also be required to file an amended return with your state.
The mailing address for your state and situation can be found at https://www.irs.gov/pub/irs-pdf/i1040x.pdf. Look under Where to File on page 14.
If you still need to print, then you can by following the steps below:
When you mail Form 1040-X you should include the following forms: