After you file

If I wait, but do them both (Federal & AL State) before April 15, will there be fines since I received a refund? I don't think $250 extra income will make a lot of difference, but I'm just wondering about fines.

 

Also, does it cost money with Turbo Tax (this is how I e-filed both returns) to do an Amendment to my returns? I do know I will have to mail them both in.