A state extension needs to be filed separately.
If you already completed (or are mostly finished with) your 2018
state return in TurboTax Online, go back into your state and look for a Need more time to file?
or similar extension question or option, usually towards the end of the
interview (step through your state again from the beginning if you
didn't find it). Then follow the onscreen instructions in TurboTax.
Otherwise, if you haven't (or you just) started your 2018 state return, scroll down to your state for alternative instructions.
https://ttlc.intuit.com/replies/3300227
For Federal, if you don't have your AGI, or your extension gets rejected for the wrong AGI, here are 2 options:
-
Recommended: Pay your taxes at IRS Direct Pay (this also automatically gives you an extension).
-
Download and print Form 4868,
fill it out, and get it postmarked before 11:59 PM April 15 (June 17 if
you were out of the country on the deadline). Payment and mailing
instructions are on pages 3 and 4 of your printout.
If you filed prior to the deadline, but were rejected, you have until
April 20 (April 22 for Maine and Massachusetts residents) to mail in
your extension.
