The township allows for a ten-day grace period for receipt of the taxes. Any property tax payment received after the tenth calendar day is considered late, and interest will be charged back to the first day due. Payment is date of receipt, not postmarked date. Delinquent interest rate is 8% on the first $1,500 and 18% on amounts above. A penalty of 6% shall be charged for any delinquency in excess of $10,000 which has not been paid, as billed, prior to the end of the calendar year.