Mental health ROI evidence strengthens: $6.07 returned per $1 spent, $4.70 per £1 in UK

A May 2026 ComPsych analysis projects a 500%-plus return on employer mental health investment at approximately $6.07 per $1 spent, driven by reduced absenteeism and presenteeism, lower medical claims, and fewer disability leaves — with productivity accounting for roughly half the return. The UK parallel, from Deloitte research cited by Mates in Mind, finds a £4.70 return per £1. For law firm CFOs and managing partners building investment cases, the data removes the "soft benefit" framing: behavioural health programmes are measurable cost-reduction and productivity infrastructure.