This five-article analysis of tax bills and assessments across New Jersey found a loosely regulated, unevenly enforced system allowing municipalities to calculate property tax bills using property assessments that in some cases are decades old. This article explores the implications of the problem and offers possible ways to reform the system. The series also exposes an inequality in the cost of property taxes in white and black neighborhoods. The cause of this imbalance are outdated tax rolls which may be in violation of federal civil rights laws. This tax discrimination can overcharge some homeowners anywhere from $400 to $1,400 per year. The series includes several graphics to illustrate the assessment and tax disparities in many New Jersey towns.