Domestic violence (DV) affects around 20% of the population globally and is linked with complex mental health conditions and difficulties in client therapeutic engagement. Developing therapeutic competency to meet the standards for independent, professional practice is a significant part of counsellor training. A competency framework for DV is a useful addition to the literature. This framework has been systematically developed from a client-informed DV counselling model (grounded theory) and integrates well with existing international publications. It highlights high level and wide-ranging counselling skills, specialist knowledge and specific personal characteristics for working with this client group, beyond the level required for independent practice. This framework could be used as a basis for pre- and post-qualification counsellor training, recruitment and assessment.