The 2 digit year code may be for a different reason than for Battle Creek. Please double check the form listed.
Running through an example of a Battle Creek, MI tax interview in TurboTax Online, I did not see an area asking for a two digit code. The only area asking for dates required a date range for when the income was earned. The format was MM/DD/YYYY. For January 1, 2020, the entry would be 01/01/2020.
For more details and to see the Battle Creek BC-1040, check page 9 of the 2020 Battle Creek 1040 Booklet.
@wjfahey
