Follow the steps to successfully complete the MI 4892 form online.

1. Click ‘Get Form’ button to obtain the MI 4892 and open it in the editor.
2. Fill in the amended return period by providing the tax year beginning and ending dates. Ensure the correct format (MM-DD-YYYY) is used for all date entries.
3. Enter the Taxpayer Name, Federal Employer Identification Number (FEIN), and the Street Address, followed by the City, State, and ZIP/Postal Code.
4. Select the reason for amending the return by entering the corresponding code in the 'Reason code for amending return' field. If necessary, attach additional information explaining the reason.
5. If this is a final return, enter the effective end date. Additionally, check the box if a special sourcing formula for transportation services is applied or if filing as part of a Michigan Unitary Business Group, including the relevant forms if applicable.
6. Complete the apportionment calculation section by entering the sales from Michigan and total sales information as per the instructions provided on the form.
7. Proceed with filling out the Corporate Income Tax details, including federal taxable income and any necessary additions or subtractions to business income.
8. Upon completing all sections, review the form for accuracy. Save your changes, and you will have the option to download, print, or share the completed MI 4892.

Complete your MI 4892 form online today to ensure your tax filings are accurate and up-to-date.