The areas targeted for the November 2007 working tax credit campaign were:
Carmarthenshire
Ceredigion
Clackmannanshire
Cleveland
Cornwall
Cumbria
Derbyshire
Devon
Dumfries and Galloway
Dundee City
Durham
Eilean Siar
Greater Glasgow
Gwynedd
East Sussex
East Yorkshire
Greater London
Greater Manchester
Isle of Wight
Lancashire
Leicestershire
Lincolnshire
Merseyside
Norfolk
Northern Ireland
Northumberland
North Yorkshire
Nottinghamshire
Pembrokeshire
South Wales (Glamorgan and Gwent)
South Yorkshire
Staffordshire
Suffolk
Tyne and Wear
West Midlands.
Estimates of the number of households entitled to but not claiming working tax credits in 2003-04, 2004-05 and 2005-06 are published in Table 1 of the HMRC publications ‘Child and Working Tax Credit Take-up rates’, for each relevant year. These publications are available on the HMRC website at:
http://www.hmrc.gov.uk/stats/personal-tax-credits/cwtc-take-up.htm.