Stepfamilies are complex family systems that warrant a specific model to guide therapy practice. Once a stepfamily has formed it's easy to overlook the lack of an attachment history that is commonly embedded in a biologically connected nuclear family. This can result in stepparents picking up parental responsibility for their stepchildren, which often may not go well. This paper highlights the need for clarity concerning the different levels of connection within a stepfamily, and the importance of avoiding ‘nuclear family‐style’ solutions and assumed attachments. This is especially important in the early stages of the relationship when everyone is adjusting to changing circumstances, which is often a time when issues of loyalty and betrayal fuel many of the actions taken. A range of family therapy techniques can be helpfully adapted to working with stepfamilies, especially as relationships with children often bring them to therapy. In particular, therapists can utilise ideas from structural family therapy to help guide the stepfamily to navigate the complexities of everyday life.