If you need an exact copy of a previously filed and processed return and all attachments (including Form W-2 (PDF)), you must complete Form 4506 (PDF), Request for Copy of Tax Return and mail it to the IRS address in the instructions along with a $39 fee for each tax year requested. Copies are generally available for returns filed in the current and past 6 years.
In cases where an exact copy of the return is not needed, tax return and transcripts may be ordered. The tax return transcript shows most line items contained on the return as it was originally filed, including any accompanying forms and schedules. In most cases, a tax return transcript will meet the requirements for lending institutions for mortgage verification purposes.
More information can be found here:
http://www.irs.gov/faqs/faq1-6.html





