Yes you have to enter his name & ssn. What state are you in? There are 9 Community Property States. So if you live in one of these and file separately you have to include your spouse's income and info. I don't know how that works.
Arizona, California, Idaho, Louisiana, Nevada, New Mexico, Texas, Washington & Wisconsin
Filing MFS in a Community Property State
https://ttlc.intuit.com/community/married/help/married-filing-separately-in-community-property-state...
Any possibility you could file Joint? Here are some things to know about filing MFS.
If one person itemizes deductions on Schedule A then the other one must itemize too, even if it's less than the standard deduction, even if it is ZERO! And if you are in a Community Property state it can be complicated to figure out.
And there are several credits you can't take when filing separately, like the
EITC Earned Income Tax Credit
Child Care Credit
Educational Deductions and Credits
And contributions to IRA and ROTH IRA are limited when you file MFS.
