You have to file within three years after you file your original return or two years after the date you paid the tax, whichever is later.
Please see how do I amend my federal tax return for a prior year and how to file an amended tax return with the IRS for more guidance.
@DX-hound
**Say "Thanks" by clicking the thumb icon in a post
**Mark the post that answers your question by clicking on "Mark as Best Answer"
