You cannot e-file a state return unless you first e-file a federal return and it has to be accepted. So your plan to mail federal returns and e-file state returns will not work for you. If you are mailing federal returns---amended or original--- then you can only mail the state returns. Amended federal returns take six months or more to be processed by the IRS. Amended state returns may take less time, depending on which state.
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
