My 20 year old son separated from his wife July 10, 2010. They filed for a divorce August 20, 2010. The divorce was final January 21, 2011. We live in Washington State. He tried to do married, filing separately on turbo tax and there is a problem because this is a community state. He does not want to file jointly with her. Can he file single? Can he file legal separated even though didn't file for a legal separation but did separate from his wife in July and they jointly filed for a divorce in August? Other than that, everything is simple, no kids, made under $25K. What are his choices?