The Middlesex County Treasurer’s Office has mailed out bills for the second real estate tax installment and officials say to contact them if you don’t receive the bill by November 15. By law, failure to receive a tax bill does not relieve the taxpayer of any obligations. Payments are due by December 5 and accounts that remain unpaid are then subjected to additional charges. Payments can be made online or at the Treasurer’s Office in Saluda.