Get your taxes done using TurboTax

Just using the Turbo Tax software when i filed it as jointly we were looking at $400 return from feds and paying in $270 to the state. When i picked  it as married, filing separately the return jumped to $1200 federal and $850 state return. That is why i am wondering if the best option for us IS filing separately because it appears our tax liability is lower that way. It also said our son can be a dependent.