The Illinois Department of Revenue recently announced that civil union couples will be able to file their state taxes jointly, just like married couples. Civil union couples may elect to file “married, filed jointly” or “married, filed separately”. Civil union couples may not file taxes jointlywith the Internal Revenue Serviceas federal law does not currently recognize civil unions. If you have questions about the new Illinois Civil Union Act, call me — Chicago family law attorney Tanya Witt at (312) 948-9884 or The above blog post does not constitute legal advice. Please discuss your specific rights with an attorney.