Property cannot simply hang in the air when a trust misfires; equity needs a rule for where the beneficial interest goes. This chapter begins with the nature of resulting trusts and the two principal categories into which they fall, fixing where automatic resulting trusts sit in the wider scheme. It then examines the automatic resulting trust itself: the common ways an express trust can fail and trigger one, and what becomes of surplus funds when a valid purpose trust can no longer be carried out and no gift-over has been made.