The searing conclusions of the Justice Department probe found Louisville police "practiced an aggressive style of policing that it deploys selectively, especially against Black people."
"Some officers have videotaped themselves throwing drinks at pedestrians from their cars; insulted people with disabilities; and called Black people 'monkeys,' 'animal,' and 'boy,'" it added.
The probe also accused police of unjustified neck restraints and unreasonable use of dogs and tasers.
Taylor, a 26-year-old emergency room technician was shot dead after three plainclothes policemen executing a drugs-related search warrant burst into her apartment in the middle of the night.
Her boyfriend exchanged fire with the officers, who he said he thought were intruders. Police fired more than 30 shots and Taylor was struck at least five times. No drugs were found.
When the May 2020 police killing of George Floyd in Minneapolis brought such deaths to greater public attention, sparking widespread protests and riots, Taylor's case came under fresh scrutiny.