I picked up the following from Rightsnet today:
"Government to break the link between benefits uprating and the September CPI
Chancellor to base April uprating instead on a 6 month average figure
18 November, 2011
The government is to break the historic link between benefits uprating and inflation, according to media reports today.
Whist, prior to this year, benefit uprating each April had been linked to the inflation rate in the preceding September as measured by the Retail Prices Index, in its June 2010 Budget, the government announced that, from April 2011, most benefit levels will instead be set by reference to the Consumer Prices Index (CPI).
However the CPI in September 2011 was a record 5.2 per cent which would mean benefit uprating in April 2012 would cost £1.8bn more than previously forecast,
As a result, there are reports today that the Chancellor has decided, ahead of his Autumn Budget Statement due to be made on 29 November 2011, to use a lower inflation figure of 4.5 per cent based on average inflation during the six months to September."