What is the name of your state (only U.S. law)? CA. I had no income during our marriage, and he didn't file taxes for 04'-07'. We separated and lived out of state starting in 06', I filed my own taxes from 07' on, and we divorced in 09'. He's currently filing his back taxes from 04' on and then filing bankruptcy. After he files bankruptcy, his tax debt should be gone, but will I owe 50% of his back taxes still?