The IRS has not yet updated the e-file system for the later payment date. If TurboTax allowed you to e-file with a payment date after April 15, the IRS would reject the e-file. So your choices right now are to either file with a payment date of April 15 or earlier, or wait until both the IRS and TurboTax have updated their software for the later date. Since you owe tax, you don't have to be in any hurry to file. It seems like waiting is the better choice.
