IY (UK) provides a network of information about Iyengar Yoga and Yoga events in the United Kingdom. Many groups of members have formed local groups which themselves spread information and hold events on a local scale; others remain as Individual members. All members receive a twice-yearly news letter called the Iyengar Yoga News.

IY (UK) is responsible for maintaining standards of teaching of Iyengar yoga, and undertakes regular assessments and certification of those wishing to teach from Introductory up to Senior levels. It also co-ordinates Professional Development Days throughout the United Kingdom, to enable teachers to remain up-to-date and to help maintain the validity of their teaching certificates. In addition IY (UK) provides insurance cover for teacher members. An Iyengar Yoga Convention is held each year in a different place throughout the United Kingdom, during which one or more senior guest teachers from the United Kingdom or abroad takes classes over a weekend. The Annual General Meeting is held each year at one of the Conventions.