Assessors' Manuals are published by the Office of Real Property Services and distributed to local assessors in order to help them perform their duties. These manuals contain information on how to maintain assessment and tax rolls, collect information on properties in their municipality and estimate market value. Updates are issued annually where appropriate. These manuals are also available in hardcopy form to private sector appraisal professionals for a fee.

The information contained in these manuals is intended to supplement the training that each local assessor must receive in order to retain their position. While these manuals provide information of aid to local assessment officials, they do not contain all that an assessor must know in order to fulfill their responsibilities.