UK HCI index: income decile 8
UK HCI index: income decile 8 stood at 147.5 in Jun 2026, according to Office for National Statistics (ONS). It is one of the indicators in the Consumer price inflation table (Value · Monthly), with a complete series running from Jan 2005 to Jun 2026. The complete series with an interactive chart, free to download.
This indicator in the Consumer price inflation table
| Indicator | 06-2026 | 05-2026 | 04-2026 | 03-2026 | 02-2026 | 01-2026 | 12-2025 | 11-2025 | 10-2025 | 09-2025 | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| All-items index by household group (2015 = 100) | |||||||||||
| Income decile 8 | 147.5 | 147.3 | 147 | 145.6 | 144.6 | 144.1 | 144.5 | 143.9 | 144.2 | 143.8 | |
| Income decile 9 | 147.4 | 147.2 | 146.9 | 145.5 | 144.6 | 144 | 144.5 | 143.9 | 144.2 | 143.8 |
Understanding UK HCI index: income decile 8
Evaluating cost shifts for the eighth disposable income decile across the United Kingdom, this index traces how purchasing pressures evolve for households approaching the higher end of the income distribution. The calculation integrates outlays on housing, including mortgage interest and council tax, providing a broad view of cost changes that differs from standard consumer price metrics. By focusing on this specific decile, the series highlights how inflation impacts segments with higher discretionary spending capacity.
When evaluating this indicator, observers should rely on year-on-year comparisons to bypass regular seasonal price swings in retail and leisure sectors. Early estimates can undergo revisions as detailed expenditure data are fully processed and validated. Comparing this series with lower-income indices reveals how divergent spending priorities alter the overall experienced inflation rate across different economic tiers.
Three focused inquiries clarify the use of this measure.
Frequently asked questions
- Which households are included in income decile 8?
- It covers households whose disposable income places them between the seventieth and eightieth percentiles of the national distribution.
- Why might this series diverge from standard headline inflation?
- Divergencies arise primarily from the inclusion of owner-occupier housing costs and the specific spending weights assigned to different goods and services.
- Are seasonal adjustments applied directly to this index?
- The series is typically analysed via twelve-month rates to mitigate seasonal distortion rather than relying on month-on-month seasonally adjusted figures.