According to the Macomb Daily, few post offices are open late today. So if you haven’t e-filed your return, and you are one of those who like to run to the post office at the VERY last min., these locations are suppose to be open late:
Redford Branch on Beech Daly Rd open until 9:00
Detroit brand on West Fort St open until 10:00 pm
Royal Oak branch on Second St open until 7:00 pm
And don’t forget you can e-file until midnight as well as file for an extension. If your federal extension is excepted, you will NOT need to file a MI extension as well.