Question to the Department for Science, Innovation & Technology:

To ask His Majesty's Government what estimate they have made of total government savings over the past five years of shifting data from locally hosted back-office IT systems, legacy or otherwise, to the public cloud.

No central assessment has been made of total government savings over the past five years of shifting data from locally hosted back-office IT systems, legacy or otherwise, to the public cloud. Whilst we would expect individual organisations to have an understanding of the costs associated with the running of their cloud and on-premise services, to support their own business cases, this is not information that is recorded centrally.