Makrognosis

United Kingdom Retail Prices Index: Long run series: 1800 to 2024: Jan 1974=100 ()

MonthlyNot seasonally adjustedCode UK.RPI.M.NSA.ITEM-CDKO

Latest (y/y)3.9%September 2026
Previous (y/y)3.4%August 2026
Level1,665.2September 2026

United Kingdom Retail Prices Index: Long run series: 1800 to 2024: Jan 1974=100 () was up 3.9% year on year in September 2026, compared with 3.4% in August 2026.

The level stood at 1,665.2 (index (1974=100)).

Over the past ten years it has ranged from 0.5% (Aug 2020) to 14.2% (Oct 2022), averaging 4.7%.

United Kingdom Retail Prices Index: Long run series: 1800 to 2024: Jan 1974=100 (), annual % change, Jan 1949 – Sep 2026−10%0%10%20%30%19501960197019801990200020102020Robomacro
United Kingdom Retail Prices Index: Long run series: 1800 to 2024: Jan 1974=100 (), annual % change, Jan 1949 – Sep 2026. Source: UK Office for National Statistics.
United Kingdom Retail Prices Index: Long run series: 1800 to 2024: Jan 1974=100 (), level (index (1974=100))05001,0001,50019501960197019801990200020102020Robomacro
United Kingdom Retail Prices Index: Long run series: 1800 to 2024: Jan 1974=100 (), level (index (1974=100)).

Showing the full history (downsampled for display). Open the interactive chart to zoom and switch transforms.

Recent data

PeriodValueY/Y %
September 20261,665.23.9
August 20261,663.23.4
July 20261,653.33.2
June 20261,643.13.0
May 20261,638.43.1
April 20261,634.83.0
March 20261,623.04.1
February 20261,610.33.6
January 20261,603.23.7
December 20251,611.54.2
November 20251,600.13.8
October 20251,607.24.3
September 20251,602.14.5
August 20251,608.44.6
July 20251,602.54.8
June 20251,595.84.4
May 20251,589.44.3
April 20251,586.74.5
March 20251,559.53.2
February 20251,554.33.4
January 20251,545.33.6
December 20241,546.83.5
November 20241,542.13.6
October 20241,541.33.4

Last 24 observations. The full history (945 observations) is available through the API.

Get United Kingdom Retail Prices Index: Long run series: 1800 to 2024: Jan 1974=100 () in your code or spreadsheet

One guessable code, agency-direct, updated on release. Free tier available.

curl -H "X-API-Key: $MAKROGNOSIS_KEY" \
  "https://makrognosis.robomacro.com/v1/series/UK.RPI.M.NSA.ITEM-CDKO"

# Python
import requests
r = requests.get("https://makrognosis.robomacro.com/v1/series/UK.RPI.M.NSA.ITEM-CDKO",
                 headers={"X-API-Key": KEY})
obs = r.json()["observations"]
Get a free API key → · API docs

About this series

Latest observationSeptember 2026
First observationJanuary 1948
Observations945
FrequencyMonthly
Unitsindex (1974=100)
AdjustmentNot seasonally adjusted
10-year high14.2% (Oct 2022)
10-year low0.5% (Aug 2020)
10-year average4.7%
Source agencyUK Office for National Statistics
Makrognosis codeUK.RPI.M.NSA.ITEM-CDKO

More United Kingdom RPI series

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Other United Kingdom indicators

United Kingdom GDP (Gross Domestic Product)United Kingdom Nominal GDP (current prices)United Kingdom Inflation Rate (CPI)United Kingdom Core Inflation RateUnited Kingdom Unemployment RateUnited Kingdom Credit Rating & Sovereign Risk ScoreUnited Kingdom Industrial ProductionUnited Kingdom Production Industries - Total (Index 1dp): CVM SAUnited Kingdom Retail SalesUnited Kingdom Producer Price Inflation (PPI)United Kingdom BoP Current Account Balance SAUnited Kingdom Trade Balance: Goods & ServicesUnited Kingdom Total Trade (TT): WW: Exports: BOP: CP: SA (goods + services)United Kingdom Total Trade: World: Exports: BOP: CVM SAUnited Kingdom Total Trade (TT): WW: Imports: BOP: CP: SA (goods + services)United Kingdom Total Trade: World: Imports: BOP: CVM SA

FAQ

What is the current retail Prices Index: Long run series: 1800 to 2024: Jan 1974=100 () in United Kingdom?
The latest reading is 3.9% year on year for September 2026, published by UK Office for National Statistics.
Where does this data come from?
It is collected directly from UK Office for National Statistics and is available through the Makrognosis API under the code UK.RPI.M.NSA.ITEM-CDKO.

Last updated 2026-10-21. Source: UK Office for National Statistics. Original title: “Retail Prices Index: Long run series: 1800 to 2024: Jan 1974=100 (UK)”.