The Cabinet Office has said that freezes on ICT and other spending have saved £500m since May.
The department said it saved altogether £1bn through "efficiency and reform measures", with half the sum saved through moratoria on ICT, consulting, recruitment, marketing and property spending.
In the 12 months from May 2010 it expects to save more than £3bn as a result of the changes introduced by the coalition government.
Of the savings already achieved, the Cabinet Office said that £402m had come from stopping ID cards and other major projects.
Cabinet Office minister Francis Maude said: "This government is leaving no stone unturned in cutting unnecessary and excessive expenditure to protect jobs and the frontline services on which people depend."
Alongside its savings figures, the Cabinet Office released information about government ICT projects worth more than £1m, which are currently being reviewed. This data reveals that 113 contracts at the Department for Work and Pensions are being scrutinised, equivalent to 35 per cent of all those under review. The Home Office was next with 40 (12 per cent), and then the Department for Transport with 38 (12 per cent).
More than 120 of the deals under review did not have a named supplier. Of those that did, however, IBM had the most with 31, followed by HP with 30, then both Capgemini and BT with 19 each, Atos with 13, Accenture with 12 and Fujitsu with 10.
This article was originally published at Kable.
Kable's GC weekly is a free email newsletter covering the latest news and analysis of public sector technology. To register click here.