General guidelines for Michigan Business Tax (MBT) electronic filing

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MFA required for electronic filing

Effective May 3rd, the 2017 version of UltraTax CS requires multi-factor authentication (MFA) to transmit e-files from CS Connect. Find out more.

UltraTax/Michigan MBT offers electronic filing for 1065 and 1120 returns. Enter information in the fields in Screen MKELF for an electronically filed Michigan MBT return. Press F1 in any field to view instructions for that field.

When the following forms are included in a filing, the MBT return can be re-filed but the following forms must be mailed.

The Michigan Department of Treasury does not accept returns that include the following forms.

In addition, MBT federal and state electronic filing is not available to taxpayers who:


Related topic: State general electronic filing information

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