can TurboTax help me file my 2018?
No, not e-file it. In order to e-file a 2018 tax return you would have to locate and hire a CPA or EA in your local jurisdiction to complete and e-file your tax return for you. You can not e-file a prior year tax return with *ANY* version or *ANY* flavor of TurboTax for *ANY* prior tax year. Period.
A CPA or EA may (or may not) have commercial tax preparation and filing software that will allow them to e-file a prior year tax return. You can fully expect it to cost you significantly more than a postage stamp though.
