To correct your return, you must give us your daughter's correct name, social security number, and date of birth. Learn how to write a letter to the IRS with our comprehensive guide and sample.Includes ChatGPT prompt. For example, you can write, "I have reviewed your letter carefully, which asks that I provide proof of my self-employment income. You have many options on how to fix a mistake on your tax return depending on whether you received a notice and the kind of mistake you made. The most common automated adjustment notice is the CP2000 (see sample below). Look at the top right-hand corner of the first page of the notice for the code. Sending an IRS audit reconsideration request? If a letter is about a changed or corrected tax return, the taxpayer should review the information and compare it with the original return. You can change your tax return.