I just got a letter from the IRS that is fining a 990 client a lot of money for filing "late."  Of course I filed an extension on May 7, a week before the May 15 deadline for that company.  But I go back and look at ProSeries to prove it and ... lo and behold, it's not there.  My Electronic Filing Client Status History says the 1st Extension Marked for EF on 5/7.  Then it says "1st Extension Unmarked for EF" on JULY 26.  That is not what I did.  I marked the return for extension and filed the extension and depended on ProSeries not to mess with my tax returns and make things vanish.  This is going to cost me a couple of thousand dollars since I can't prove I filed that extension.   This on top of changing my returns that already recognized the unemployment deduction,  by doubling it.  And I was told it was my own fault because I didn't "lock my returns."  Why do I have to lock my returns away from ProSeries???