There is strong evidence suggesting ethnic variations in mental health service use and disproportionate numbers of people of black ethnic origin being admitted to hospital. The objective of this study was to establish whether people of black ethnic origin had equal access to home treatment in a mental health crisis. Using a case-control design, we selected a random sample of 240 inpatient episodes and compared them with a sample of 77 home treatment episodes over a 12-month period (1 April 2008-31 March 2009). We found no difference in the proportion of people of black ethnic origin being home treated in comparison to receiving an inpatient admission, although they experienced longer hospital admissions than people of other ethnic origin. Diagnosis, housing status and source of referral were found to be significant in influencing the choice of intervention in our multivariate analysis. People of black ethnic origin were found to use home treatment to the same extent as other ethnic groups in a mental health crisis, but further research is required for the early discharge function of home treatment teams to evaluate whether this aspect of care is experienced differently by different ethnic groups.