If you are using TurboTax Business, see the following:

https://care-cdn.prodsupportsite.a.intuit.com/forms-availability/turbotaxbusiness_states.html

You will most likely need to file returns in both states.

Hi thank you for the quick reply 🙂  I don't need to see a list of forms availability though.  I was wondering how exactly to determine whether an 1120S needs to be filed in both states and what considerations I need to be aware of and pay attention to.  Thank you again.