Notice: The tax rate has been struck for the Borough of Mendham. Tax bills will be mailed out the week of July 27th. Residents can view their balances and the amount owed online on the Mendham Borough website. There will be an extension of the payment grace period to 25 days after the date of mailing. The date of the extension will be printed on the bill. If payment is made after this extended grace period, interest will be charged back to August 1st.