Can I use turbotax 2012 to do 2013 tax returns?

    No.  Each year is separate.  Do you just want to do some estimates or planning?  

    Here are some Tax Planning tools

    If you are using the Desktop Software there is also a What-if worksheet. Go to Forms Mode, click Forms in the upper right (left for Mac). Then click Open Forms box in the top of the column on the left. Open the US listing of forms and towards the bottom find the What-if worksheet.

    Or you can copy your file with another name and test in the copy.  Go to FILE-SAVE AS.

    If you are using the Online version you would have to start with a new account and do a test return.  You don't have to pay unless you want to print it out.

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