Can I only file federal taxes?

[LeonardS]

Yes, you can only file federal taxes.

However, if you do not file a state tax return and you are required to do so you may be subject to penalties from the state for not filing a tax return.

[VolvoGirl]

To not pay for state you have to delete it.  You can add it back in later but you will have to pay.

https://ttlc.intuit.com/community/using-turbotax/help/how-do-i-delete-my-state-return-in-turbotax-on...