The ACAS Annual Reports home page and index provides links to all ACAS annual reports since 1999.

"Highlights" of the 2009/2010 ACAS annual report include:

• the number of requests for ACAS to intervene in collective disputes and conciliate between the two sides fell slightly from 966 in the previous year to 905 in the year to 31st March 2010 - other recent comparative figures were 896 in the year ended 31.3.08; 912 in the year ended 31.3.07; 952 in year ended 31.3.06; 1,123 in year ended 31.3.05; 1,244 in year ended 31.3.94 and 1,353 in year ended 31.3.03.

• there were 141,663 cases received for conciliation in the year to 31st March 2010 compared to 138,535 in the previous year, 151,249 in the year ended 31.3.08; 105,177 in the year ended 31.3.07 and 109,712 in the year ended 31.3.06. Unfair dismissal claims were the largest category of complaint (64,878) compared to 43,028 unfair dismissal claims in the year to 31st March 2009 and 33,352 in the year to 21st March 2008.

• the ACAS helpline answered 1,020,670 (previous year - 726,306) calls at an average cost of £13.04 per call (previous year - £12.12).

• Acas launched its pre-claim conciliation scheme ("PCC") nationally in April 2009 after a successful pilot in 2008. PCC is an important component of the new services for which Acas was given additional funding after the 2007 Dispute Resolution Review.

See also notes at ACAS/functions of/conciliation services .