How many years back do you need to keep your tax paperwork?
According to IRS you can keep tax records from 2 years to 7 years. If you file a fraudulent return or do not file a return, you should keep the records indefinitely. For more information, go to this link http://www.irs.gov/businesses/small/article/0,,id=98513,00.html.
3 years personal,7 years business