Effective October 1, 2012, the income tax withholding rate
will change to 4.25% and the personal exemption amount will change to $3,950.
The pension and/or retirement benefit withholding rate will also change to
4.25%, however, there is no adjustment to the monthly pension deduction amount.
Withholding Tables have been updated.
If you are using a payroll system, then make sure to call the publisher to get the most up to date version. If you are doing payroll by hand, I highly recommend you call the state to get the latest withholding booklets.
The latest Michigan withholding tables can be found here:
http://www.michigan.gov/documents/taxes/2013_IIT_Wth_Table_396963_7.pdf