Dollar General and Family Dollar stores have collectively failed more than 6,400 government price-accuracy inspections since January 2022, charging customers more at checkout than the prices displayed on shelves for everything from frozen pizzas to puppy food, according to an investigation by the Guardian. The review examined records from 45 states and more than 140 counties and cities. Dollar General stores failed over 4,300 inspections across 23 states, and Family Dollar failed more than 2,100 in 20 states. Error rates at the worst-performing locations reached staggering levels -- 76% at a Dollar General in Hamilton, Ohio and 68% at a Family Dollar in Bound Brook, New Jersey. A Family Dollar in Provo, Utah failed 28 consecutive inspections.

Industry watchers, employees and lawsuits attribute the discrepancies to minimal staffing. Registers update automatically when prices change, but shelf labels require manual replacement, and workers often lack the time. State attorneys general have pursued settlements -- Arizona reached a $600,000 deal with Family Dollar in May, Colorado settled with Dollar General for $400,000 in October and Ohio secured $1 million from Dollar General after finding error rates as high as 88%. Both companies declined interview requests but said they remain committed to pricing accuracy.