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Background Notes

Estimated inflation was highest for households headed by those aged under 35 in the 12 months to June 2026

CSO statistical release, , 11am
Frontier Series Output

CSO Frontier Series outputs may use new methods which are under development and/or data sources which may be incomplete, for example new administrative data sources. Particular care must be taken when interpreting the statistics in this release.

This release is an update to the estimates of inflation broken down by various household characteristics. The previous versions of this analysis on Estimated Inflation by Household Characteristics were published as research papers for March 2022, June 2022, September 2022. A shorter version of the research paper was published for March 2023 and September 2023 and they are also available at the link above. This current release for June 2026 follows a similar format as the September 2023 research paper except that the information provided in the tables of the Detailed Results chapter are combined and presented in Tables 2 to 4 at the end of the Key Findings chapter.

  • For additional background information please see the Introduction chapter of the September 2022 research paper.
  • This release is published under the CSO Frontier Series Banner which indicates that there are some limitations to the analysis. For more information please see the Limitations section of the September 2022 research paper.
  • The lower achieved sample size for the most recent Household Budget Survey (HBS) conducted in 2022 and 2023 have resulted in some of the classifications for this research needing to change from previous iterations of this work:
    • Results by household income are presented by income quartile (four groups) instead of income decile (10 groups).
    • It was not possible to split out households that are rented privately from those rented from local authorities so there is now just a “Rented” group in the tenure breakdown.
    • We had to change the household composition from the previous six groups to two separate classifications: children in household (yes or no) and number of adults in household (one, two, three or more).
  • For information on the methodology used please see the Appendix – Methodology chapter of the original research paper for March 2022.

See also:

Consumer Price Index - Background Notes

The Consumer Price Index (CPI) Explained – Information Note

Ireland’s Consumer Price Index - Video

Household Budget Survey

Household Budget Survey – Methodological Documents

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