Yes, you can save your return and continue on at a later date. If you wish you can file your Federal return now and complete the State later on also.
To do this, follow the instructions below. If you just want to save the return and continue the whole thing at a later date, click on the My Account tab on the top of the screen and click on "save and sign out". This will save your return and allow you to pick back up exactly where you left off at a later date.
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