Last Day to Pay Summer and Winter Taxes at Township. Any taxes unpaid at 5 p.m. at the Township Hall will be turned over as delinquent to the Shiawassee County Treasurer. Allow two weeks before contacting the County to pay any unpaid taxes after 2/28/2018, to allow for end of tax year reconciliation.Final Day for Dog Licenses at Township. Effective March 1, dog licenses must be purchased from the County Treasurer at double the normal rates.