The child is already entered once in the system & it will reject if it is tried to be used again. Years ago, there have been glitches that would allow errors to go through, but not as smart technology has so much improved. You may have filed 1st before when you didn't have any issues. Read the info under the IRS interactive questions on-inline and it will give a correct answer. It's so close to getting cut off from filing electronically that some are jamming the system. Hope this helps. If nothing else, file by paper. However, a word of caution, you may be subject to have the return examined. And if there is a glitch, there's nothing that can fix it at this time (at least not this late in the season, yet you may be correct unless things have changed from one year to another. Good going.
