Any online software includes e-filing. The fees are for using the software, and they are the same whether you e-file or mail the return in an envelope.
If you decide to file married filing separately that means TWO returns--one for each spouse--and two fees. Married filing jointly is one return/one fee.
**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.**