The form local authorities must return for the annual data collection, and a guide to the information they need to submit.
These documents cover the period 1 October 2015 to 30 September 2016.
This year local authorities can complete either the statutory aggregate data collection return or the voluntary individual level data collection return.
Local authorities must send completed returns by 25 November 2016.
The return for the year ending 30 September 2015 is available at the National Archives.