There is no charge for e-file. The fee if for the use of the software to prepare the return and is the same whether e-filed or mail filed. You have until April 15 to mail the return or of you file an online extension, then you have until Oct. 15 to file. The IRS is also expected to delay the pay-by date if you owe (payments can also be made electronically) , so there is no reason to rush to mail file - and TurboTax might have fixed the problem by then.
Yes, there is a charge for e-filing STATE returns. Perhaps it depends on the level of software you purchase. I have always paid an additional charge to e-file my state return, while the federal e-file is included in the cost of the software.
