Makrognosis

United Kingdom RPI All Items Index Excl Mortgage Interest (RPIX): Jan 1987=100 ()

MonthlyNot seasonally adjustedCode UK.RPIX.M.NSA.ITEM-CHMK

Latest (y/y)3.9%September 2026
Previous (y/y)3.3%August 2026
Level415.1September 2026

United Kingdom RPI All Items Index Excl Mortgage Interest (RPIX): Jan 1987=100 () was up 3.9% year on year in September 2026, compared with 3.3% in August 2026.

The level stood at 415.1 (index (1987=100)).

Over the past ten years it has ranged from 0.8% (Aug 2020) to 13.9% (Oct 2022), averaging 4.5%.

United Kingdom RPI All Items Index Excl Mortgage Interest (RPIX): Jan 1987=100 (), annual % change, Jan 1988 – Sep 20260%5%10%15%19901995200020052010201520202025Robomacro
United Kingdom RPI All Items Index Excl Mortgage Interest (RPIX): Jan 1987=100 (), annual % change, Jan 1988 – Sep 2026. Source: UK Office for National Statistics.
United Kingdom RPI All Items Index Excl Mortgage Interest (RPIX): Jan 1987=100 (), level (index (1987=100))10020030040019901995200020052010201520202025Robomacro
United Kingdom RPI All Items Index Excl Mortgage Interest (RPIX): Jan 1987=100 (), level (index (1987=100)).

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

Recent data

PeriodValueY/Y %
September 2026415.13.9
August 2026414.63.3
July 2026412.23.1
June 2026409.72.9
May 2026408.63.0
April 2026407.63.0
March 2026404.54.0
February 2026401.43.5
January 2026399.73.7
December 2025401.94.1
November 2025399.03.7
October 2025400.94.2
September 2025399.64.4
August 2025401.44.4
July 2025399.84.7
June 2025398.24.3
May 2025396.64.1
April 2025395.94.2
March 2025388.82.8
February 2025387.73.0
January 2025385.53.2
December 2024386.02.9
November 2024384.83.0
October 2024384.82.8

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

Get United Kingdom RPI All Items Index Excl Mortgage Interest (RPIX): 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.RPIX.M.NSA.ITEM-CHMK"

# Python
import requests
r = requests.get("https://makrognosis.robomacro.com/v1/series/UK.RPIX.M.NSA.ITEM-CHMK",
                 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 (1987=100)
AdjustmentNot seasonally adjusted
10-year high13.9% (Oct 2022)
10-year low0.8% (Aug 2020)
10-year average4.5%
Source agencyUK Office for National Statistics
Makrognosis codeUK.RPIX.M.NSA.ITEM-CHMK

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 Excl Mortgage Interest (RPIX): 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.RPIX.M.NSA.ITEM-CHMK.

Last updated 2026-10-21. Source: UK Office for National Statistics. Original title: “RPI All Items Index Excl Mortgage Interest (RPIX): Jan 1987=100 (UK)”.