I'm married. I want to file bankruptcy without my spouse. Can i do this? will it affect his credit?

Yes you can file bankruptcy by yourself.  Your spouse's income will factor into your eligibility for which chapter of bankruptcy you can file, but they do not have to file with you.  As to how it will affect the non-filing spouse's credit, that depends on a number of factors including the laws of your state with regard to property and debts and how you incurred those debts during your marriage. Mark Markus has been practicing exclusively bankruptcy law in California since 1991.  He is a Certified Specialist in Bankruptcy Law by the State Bar of California Board of Legal Specialization,  AV-Rated by martindale.com, and A+ rated by the Better Business Bureau.