Makrognosis

United Kingdom RPI All Items Index: Jan 1987=100

MonthlyNot seasonally adjustedCode UK.RPI.M.NSA

Latest (y/y)3.9%September 2026
Previous (y/y)3.4%August 2026
Level422.1September 2026

United Kingdom RPI All Items Index: Jan 1987=100 was up 3.9% year on year in September 2026, compared with 3.4% in August 2026.

The level stood at 422.1 (Index, Jan 1987=100).

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

United Kingdom RPI All Items Index: Jan 1987=100, annual % change, Jan 1988 – Sep 2026−5%0%5%10%15%19901995200020052010201520202025Robomacro
United Kingdom RPI All Items Index: Jan 1987=100, annual % change, Jan 1988 – Sep 2026. Source: UK Office for National Statistics.
United Kingdom RPI All Items Index: Jan 1987=100, level (Index, Jan 1987=100)10020030040019901995200020052010201520202025Robomacro
United Kingdom RPI All Items Index: Jan 1987=100, level (Index, Jan 1987=100).

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

Recent data

PeriodValueY/Y %
September 2026422.13.9
August 2026421.63.4
July 2026419.13.2
June 2026416.53.0
May 2026415.33.1
April 2026414.43.0
March 2026411.44.1
February 2026408.23.6
January 2026406.43.8
December 2025408.54.2
November 2025405.63.8
October 2025407.44.3
September 2025406.14.5
August 2025407.74.6
July 2025406.24.8
June 2025404.54.4
May 2025402.94.3
April 2025402.24.5
March 2025395.33.2
February 2025394.03.4
January 2025391.73.6
December 2024392.13.5
November 2024390.93.6
October 2024390.73.4

Last 24 observations. The full history (477 observations) is available through the API.

Get United Kingdom RPI All Items Index: Jan 1987=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"

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

About this series

Latest observationSeptember 2026
First observationJanuary 1987
Observations477
FrequencyMonthly
UnitsIndex, Jan 1987=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

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 rPI All Items Index: Jan 1987=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.

Last updated 2026-10-23. Source: UK Office for National Statistics. Original title: “RPI All Items Index: Jan 1987=100”.