Form 1040 changed slightly from past years so the current advice is a bit different.
You must enter a name, date of birth and SSN to satisfy Turbotax, try 999-88-9999 (all nines does not work).
Then when you print the return, you will see a dotted line in the "Filing Status" box that says "If you checked MFS status, enter the name of your spouse." However, don't enter the name of the spouse, enter "NRA" instead. And if the fake SSN is printed in the box for the SSN, use some white out to cover it up.
