UK employers already have a legal duty to take reasonable steps to prevent sexual harassment under the Worker Protection (Amendment of Equality Act 2010) Act 2023. The Employment Rights Bill is expected to raise this to all reasonable steps and to place duties on third party harassment. This guide explains what the law says, what may change, how to evidence compliance, and how ethical organisations can turn compliance into culture change. Practical checklists, a 90 day plan, and sector tips included.