I am trying to file my taxes; however, my spouse refuses to provide me with their information as we are filing separate. They claimed me last year. Thus, they have my information already. We are filing separately now. How can I file my taxes?

are you going to provide her with your information?

perhaps you can negotiate.

They already filed with my information on hand as they filed last year and claimed me. I need their information to file separately. 

your only option is to paper file with a letter explaining why you have not included your spouse's info.