It depends but if you did not change your permanent residence out of CT (like got an RI driver's license or change your permanent address to RI) and you have no intension of changing your legal residence to RI, then CT will be considered your permanent state of residence.
Therefore, if you are a permanent resident of CT but were in RI
on a temporary basis (even if for a full year) and earned income in RI, then you will need to file
a RI nonresident state income tax return (for your RI source income only -
your RI wages). You will also need to file a CT resident state tax return (for
all income from all sources including RI wages). You will get a state income
tax credit in CT for any RI state income taxes that you paid on your
nonresident RI state income tax return
You
will want to work on your nonresident RI state income tax return first. You
will then take a tax credit from your nonresident RI state income taxes on your
resident CT state income tax return. (Please note that you will only get a tax
credit for your RI state income taxes up to the amount of CT state income taxes
that would have been paid if the income was earned in CT). The credit for
taxes paid to another state section will be at the end of your residence
state's interview process.
However, if you do consider RI as your new permanent state of residence and have no CT sourced income, then only file an RI resident state income tax return.
Otherwise just
follow the TurboTax guide when working on your states (remembering to do your
nonresident state return first) and TurboTax will do all the calculations and
credits to your resident states return
Here
is additional information about filing in multiple states (select "see
more answer" to view the entire attachment)
https://ttlc.intuit.com/replies/3300797
