How do I request a copy of my tax return?

To request a copy of your tax return, you will need to fill out and submit Form 4506 to the Missouri Department of Revenue. This form authorizes the release of your tax return information to you or a third party. Be sure to provide all required information and follow the instructions on the form carefully to ensure a prompt response to your request. Requests may take some time to process, so it is recommended to submit your request well in advance of any deadlines you may have.