Why does on the menu drop list on the app says my federal is $0?

[LinaJ2020]

It means you are neither receiving any money back nor owing the government. 

Have you finished entering all your information?

If you have, no gain no loss.  However, you would still need to file if you meet the filing requirements. 

If you have not, please continue to enter the rest of your info which might change the refund meter at the end.