Yes, your refund can be seized for your spouse's delinquent student loan debts.
You cannot file Head of Household if you are married and lived together for the last six months of 2018, so forget that. Your choices are to file married filing jointly or married filing separately. If you file MFS you lose a lot of credits like earned income credit and education credits. You can file a joint return and file as an injured spouse to protect part of your tax refund. If you are in a community property state it is tricky.
Community property states: AZ, CA, ID, LA, NV, NM, TX, WA, WI
INJURED SPOUSE
https://ttlc.intuit.com/questions/1910698-how-do-i-file-form-8379-injured-spouse-allocation
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
