You may access prior year TaxACT Online returns by using the Data Archive Service (DAS). The service stores your return until May 1st of the third year following the filing deadline of your return. For example, 2010 returns will be available until 4/30/2014, 2011 returns until 4/30/2015, and so on.
See Access Prior Year Returns to sign up for DAS and access your return.
NOTE: TaxACT does not provide archived copies of returns filed through the TaxACT Desktop or TaxACT Preparer's programs. If you no longer have access your saved return file, you can receive a copy of a successfully filed return from the IRS by calling 800-829-1040.