You asked
Please provide information on how and when inflationary rises are made known to the Department for Work and Pensions and state the expected use of this information.
We said
Thank you for your query regarding the use of consumer price inflation statistic by the Department for Work and Pensions.
All consumer price inflation data is published monthly, with dates being announced in advance on our release calendar (https://www.ons.gov.uk/releasecalendar?view=upcoming). The results are published at 9.30am in the Consumer Price Inflation statistical bulletin and accompanying data tables on our website which is the point of access for all users; https://www.ons.gov.uk/economy/inflationandpriceindices/bulletins/consumerpriceinflation/june2018
An article ‘Uses and users of consumer price inflation statistics’ describes the main uses of consumer price inflation data, including indexation of state pensions and benefits by the Department for Work and Pensions. It is important to note that it is ultimately the responsibility of users to determine which statistics they select for their purpose.