I am using TT Online. I was able successfully to file yesterday (Saturday Feb 23). A week ago a spent over five hours on different calls with TT customer service because I could not figure out why my efiling had been rejected twice at Federal level. It turns out that (in my opinion) there was a logic/programming glitch either with TT or with the IRS with respect to how to handle Form 2210 (seems it was affecting people like some retirees with low withholding taxes but who had made regular and adequate estimated tax payments). The solution proffered by TT (to send in my return by mail) made no sense at all. Then I read a post that TT/IRS would have worked out a fix by Friday 22nd. So I re-filed on the following day (yesterday) and it went through fine. So, thank you TT/IRS for getting this done.
