The ePayments system is secure, fast, and convenient. The City allows you to pay your income tax online.Whether requested electronically or on paper, the taxpayer will then have until Oct. 15, 2024, to file, though payments are still due on June 17. Important - please review your tax form as there are changes to the documentation required to be submitted! Fill out the MI-1040, lines 1-10. STOP. 3. Use the MIExt screen to prepare the MI Form 4. You can either have UltraTax CS calculate the payment amount, or manually force it. File Online through Michigan e-File. Owing taxes can be confusing and overwhelming.