Last day to pay Summer 2024 taxes to avoid interest is 9/16/2024. Mail payments to: Hayes Township, PO Box 310, Harrison MI 48625. We do not accept Post Marks. To pay online using a credit/ debit card go to https://bsaonline.com/?uid=700. To pay via phone, call 1-877-723-4819. (3% convenience fee will apply to card payments)