False accusations of domestic violence can ruin someone’s life. Under certain circumstances, lying about domestic violence is a crime. Perjury is when an individual lies under oath during an official investigation, either in a written or verbal statement. While individuals who lie about domestic violence may be charged with perjury, it is unlike to happen. Additionally, the accuser could be charged with filing a false police report, a misdemeanor offense.
The individual who was falsely accused may file a civil lawsuit against the accuser to receive compensation for any damages caused by the allegation.
https://www.cmcdefense.com/blog/2021/october/is-lying-about-domestic-violence-a-crime-/