TurboTax no longer provides the software or support to file a 2012 return. You can go to the IRS site to download copies of the forms to file a 2012 return. It is too late to get a refund for a 2012 return, however.
You can download the Forms and Instructions from the IRS web site:
I have some. Here are some blank forms & instructions for 2012
1040 <a rel="nofollow" target="_blank" href="http://www.irs.gov/pub/irs-prior/f1040--2012.pdf">http://www.irs.gov/pub/irs-prior/f1040--2012.pdf</a>
Instructions <a rel="nofollow" target="_blank" href="http://www.irs.gov/pub/irs-prior/i1040--2012.pdf">http://www.irs.gov/pub/irs-prior/i1040--2012.pdf</a>
1040A <a rel="nofollow" target="_blank" href="http://www.irs.gov/pub/irs-prior/f1040a--2012.pdf">http://www.irs.gov/pub/irs-prior/f1040a--2012.pdf</a>
Instructions <a rel="nofollow" target="_blank" href="http://www.irs.gov/pub/irs-prior/i1040a--2012.pdf">http://www.irs.gov/pub/irs-prior/i1040a--2012.pdf</a>
1040EZ <a rel="nofollow" target="_blank" href="http://www.irs.gov/pub/irs-prior/f1040ez--2012.pdf">http://www.irs.gov/pub/irs-prior/f1040ez--2012.pdf</a>
Instructions <a rel="nofollow" target="_blank" href="http://www.irs.gov/pub/irs-prior/i1040ez--2012.pdf">http://www.irs.gov/pub/irs-prior/i1040ez--2012.pdf</a>
2012 Tax Tables <a rel="nofollow" target="_blank" href="http://www.irs.gov/pub/irs-prior/i1040tt--2012.pdf">http://www.irs.gov/pub/irs-prior/i1040tt--2012.pdf</a>
Publication 17 Tax Guide for 2012 <a rel="nofollow" target="_blank" href="http://www.irs.gov/pub/irs-prior/p17--2012.pdf">http://www.irs.gov/pub/irs-prior/p17--2012.pdf</a>