Do you file federal and state income taxes seperately?

Yes. There are separate forms that need to be filled out and filed for any state you have had income tax held in.

Depends on what state you are in. Some don’t have state income tax.

If your state has an income tax, yes, it is done separately from the Federal filing. Also, find out if you have a city or local income tax. Where I live, some communities have a 1 or 2 percent income tax for residents.

They are separate with separate people to mail to.

Unless you live in a nice state like Washington, which has no state income tax! Yay!

When I lived in Vermont, I had to file and send separate returns for Federal and State taxes.
Having spent most of my adult life either in WA or NH, I haven’t filed State taxes in years though :D

No I don’t file taxes. I will probably be in federal prison one day.

Nope. I live in a state that is sensible enough to have an at the register sales tax rather than a state income tax.

Yes. If your state has income tax requirements you file it separately.