Thanks for asking your question! I'm sorry to hear about your tax
issue and I'm going to try my best to help you understand or resolve it.
Thank you for your question, and thanks for using JustAnswer.com. In order to file an amended return
you will need to complete a form 1040X. To complete this form, I would go ahead and fill out a tax return claiming the miscellaneous income. Do not send this in, it is just to help you fill out the amended return. Then, on 1040X in column A, put your original return information in. In column B, enter in the information from the return you filled out claiming the other income. Column C is the difference between columns A & B.
Don't worry about Part II, as you are not changing anything there. In Part III type up a response that says you are amending your return to claim previously unclaimed income.
Do not file this return until you you have received your refund from your original return. Mail the form 1040X to the service center listed in the instructions.
You can find 1040X, HERE
Please let me know if you need anything additional. Thanks again for using JustAnswer.com and have a great day.
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You should be aware that your question, as with most tax questions, can never really be answered completely...addressing all the permutations; that is because of the many assumptions that have to be made I have done my best to determine what I think you are asking and answering it in the most direct and understandable manner possible. If, however, after reviewing the questions, you have any uncertainties or further questions, please do not hesitate to ask.