Consumer Price Index since 1988

Comparison with Retail Price Index
    • Latest Year First
    • From January 2013
    • Oldest Year First
    • From January 1988

2016Consumer Price Index  New Retail Price Index(RPIJ)  Old Retail Price Index
  Annual %Index  Annual %Index  Annual %Index
July0.6128.8  1.1241.1  1.9263.4
June0.5128.8  0.9240.9  1.6263.1
May0.3128.5  0.7240.1  1.4262.1
April0.3128.3  0.7239.6  1.3261.4
March0.5128.3  0.8239.4  1.6261.1
February0.3127.7  0.6238.7  1.3260.0
January0.3127.4  0.7238.1  1.3258.8
2015Consumer Price Index  New Retail Price Index(RPIJ)  Old Retail Price Index
  Annual %Index  Annual %Index  Annual %Index
December0.2128.5  0.5239.8  1.2260.6
November0.1128.3  0.3239.1  1.1259.8
October-0.1128.4  0.0238.9  0.7259.5
September-0.1128.2  0.1239.1  0.8259.6
August0.0128.4  0.5239.4  1.1259.8
July0.1128.0  0.4238.4  1.0258.6
June0.0128.2  0.4238.7  1.0258.9
May0.1128.2  0.4238.5  1.0258.5
April-0.1128.0  0.3238.0  0.9258.0
March0.0127.6  0.3237.4  0.9257.1
February0.0127.4  0.4237.2  1.0256.7
January0.3127.1  0.5236.5  1.1255.4
2014Consumer Price Index  New Retail Price Index(RPIJ)  Old Retail Price Index
  Annual %Index  Annual %Index  Annual %Index
December0.5128.2  1.0238.6  1.6257.5
November1.0128.2  1.4238.3  2.0257.1
October1.3128.5  1.7238.9  2.3257.7
September1.2128.4  1.6238.8  2.3257.6
August1.5128.3  1.8238.3  2.4257.0
July1.6127.8  1.8237.5  2.5256.0
June1.9128.3  2.0237.8  2.6256.3
May1.5128.0  1.7237.5  2.4255.9
April1.8128.1  1.8237.4  2.5255.7
March1.6127.7  1.8236.7  2.5254.8
February1.7127.4  2.0236.3  2.7254.2
January1.9126.7  2.1235.4  2.8252.6
2013Consumer Price Index  New Retail Price Index(RPIJ)  Old Retail Price Index
  Annual %Index  Annual %Index  Annual %Index
December2.0127.5  2.0236.2  2.7253.4
November2.1127.0  2.0235.1  2.6252.1
October2.2126.9  1.9234.9  2.6251.9
September2.7126.8  2.5235.0  3.2251.9
August2.7126.4  2.6234.2  3.3251.0
July2.8125.8  2.6233.2  3.1249.7
June2.9125.9  2.7233.2  3.3249.7
May2.7126.1  2.5233.5  3.1250.0
April2.4125.9  2.3233.2  2.9249.5
March2.8125.6  2.7232.6  3.3248.7
February2.8125.2  2.6231.7  3.2247.6
January2.7124.4  2.7230.6  3.3245.8

Consumer prices index(CPI) is the government's preferred measure of inflation.
It is used as the government's inflation target for the Bank of England Monetary Policy Committee.
It is available as an index from January 1997, with estimates back to 1988.
It was called the Harmonised Index of Consumer Prices(HICP). All EU countries introduced an HICP after the Maastricht Treaty to assess whether prospective members of European Monetary Union would pass the inflation convergence criteria.
It excludes mortgage interest payments and council tax.
As of the 2010 budget CPI, as part of the tripe-lock, is used to index state pensions in place of RPI.

Retail Price Index(RPI) is the familiar and long-established measure of cost-of-living in the UK.
It influences pensions(not state pensions), wage agreements, commercial leases and regulated rail fares.
Government still uses RPI for index-linked gilts.
Institute of Fiscal Studies, an independent research organisation/pressure group not linked to the government, published a review of measures of inflation in January 2015 which claimed that using old RPI for index-linked gilts costs taxpayers £2bn a year.
National Savings still use RPI for index-linked savings certificate renewals. Only renewals because there have been no new sales of index-linked certificates for years.
RPI index values are available continuously from June 1947.
The index was rebased (started at 100 again) in January 1952, January 1956, January 1962, January 1974 and January 1987.

New Retail Price Index(RPIJ) was introduced after statisticians at the Office for National Statistics found that formula used to calculate RPI had overstated inflation. In March 2013 they provided revised figures going back to 1997. This revised index, RPIJ, is used everywhere else on this website. But it doesn't seem to be used anywhere else in the UK.

Last updated 01 May 2016
Sources: 'Annual Abstract of Statistics' 2001 edition. Office for National Statistics.
Office for National Statistics website www.ons.gov.uk.