The U.S. Department of the Treasury and the Internal Revenue Service (IRS) today ruled that same-sex couples, legally married in jurisdictions that recognize their marriages, will be treated as married for federal tax purposes. The ruling applies regardless of whether the couple lives in a jurisdiction that recognizes same-sex marriage or a jurisdiction that does not recognize same-sex marriage.
This is the “place of celebration” rule as opposed to the “place of residence” rule.
To read the entire release from the U.S. Department of the Treasury please follow this link.