I received my real estate tax bill, but I pay it through my mortgage.

Tax bills are mailed to the owner of record on December 31 prior to the July billing.  Most banks will get the tax bill electronically, and they do not request the bill.  We recommend you contact your mortgage or escrow company to ensure that they do not need a copy of the bill.  You may be required to send the mortgage or escrow company a copy of your bill.