@keagwa - You *cannot* simply amend a joint return to single - that is not allowed because after the due date of a tax return neither spouse can disavow themselves of the joint liability on a joint return.
Filing a joint return when you are not married is a very special case and requires the IRS to declare the joint return an *invalid* tax return. Doing that is definitely not do-it-yourself and requires professional help. Even many professionals do not know the procedure that is defined in the IRS Internal Revenue Manual (IRM).
**Disclaimer: This post is for discussion purposes only and is NOT tax advice. The author takes no responsibility for the accuracy of any information in this post.**
