MFS with 2 kids return rejected with F2441-996 error code.  Parents live together and filed with both children as dependents. 1 child had child care expense. e-file rejected with Error code F2441-996 says  IP-PIN provided on form 2441 is not valid. Child does not have IP-PIN. I see where there is a place to input one on dependent worksheet, but he does not have one. I input a digit on the IP-PIN field and deleted to make sure there was no phantom # in the field. Not sure what to do to get this return thru e-file. Thanks in advance for any assistance.