Hello,
Entering 'NRA' in the SSN/ITIN field on the 1040 federal form in the case of a NRA spouse who neither has nor needs an SSN/ITIN is apparently not a strict requirement. I successfully e-filed with Free File Fillable Forms while leaving the SSN/ITIN field blank for my NRA spouse (because the software will not accept an alphabetical value in that field). Good luck.
