TurboTax FAQ
TurboTax FAQ
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Is it still possible to e-file 2017, 2016, or earlier tax returns in TurboTax?

2017 corporate and partnership returns are the only prior-year returns that can still be e-filed. For all other prior-year returns, the e-filing "window" has passed.

This "window" lasts from January to mid-October immediately after the tax year ends. For example, 2017 personal (1040) returns could be e-filed from January through mid-October of 2018.

However, you can still prepare prior-year returns and paper-file them. Find out how.