The information requested falls within the responsibility of the UK Statistics Authority. I have asked the authority to reply.
Letter from Karen Dunnell, dated 2 June 2008:
As National Statistician, I have been asked to reply to your recent Parliamentary Question asking what the average level of take-home pay was in each year since 1980 in (a) real terms and (b) 2008 prices; and what was the percentage change in each year. (207774)
Average levels of earnings are estimated from the Annual Survey of Hours and Earnings (ASHE) in April each year. It is the most comprehensive source of earnings information in the United Kingdom. Various breakdowns and analyses are available online for years 1997 onwards at:
The ASHE does not collect information on take-home pay, only gross pay before tax, National Insurance or other deductions. Estimates of average take-home pay in real terms and 2008 prices are therefore not available.