Transaction date of Harris County Tax Office online payment portal; transaction date of telephone payment. Q. Where can I pay my property taxes?How companies pay claims; Resolving problems. Types of home insurance coverages. The due date for filing a property tax return with your county tax officials is January 1 and April 1 unless otherwise indicated. Many Departmental forms are now available online to better serve USDA employees and customers. The department is responsible for maintaining the filed records for each Probate Court case. The clerk also attends each court docket in support of the court. The. Standard Flood Insurance Policy is not a valued policy. III. The mailing address for the general rendition forms is Harris.