The office for National Statistics will disclose the total number of illegal immigrants presently in the UK. Most of these immigrants are today employed in the shadow economy which is estimated at an annual valuation of £50bn.
Statisticians have planned to use the census to measure illegal citizens and will create a database of legal citizens in the UK using tax files and hospitals and school records obtained from the HMRC.
Some estimates have suggested that as of today there are 1.1 million illegal immigrants in the UK which include people who have over-stayed their visa, asylum seekers who were not granted the rights to stay in the country among others.
This is likely to happen in late december this year and ONS officials believe that for the first time they will have an accurate figure of the illegal migrants in the UK.
