How do you get a copy of a deceased person's income tax returns?

To obtain a deceased person's income tax returns, you must file Form 4506, Request for Copy of Tax Return, with the IRS. Along with the form, you need to provide proof of your identity and your legal right to access the returns, such as being the executor or administrator of the estate. If you're not the executor, you may need to include a signed authorization from the executor. Additionally, you may need to include a death certificate to verify the individual's passing.