- Type of survey: monthly continuous survey
- Base period: 2025
- Weight reference period: previous year
- Sample of municipalities: 177
- Number of items: 487 of traditional collection and 263 of scanner data
- Number of observations: approximately 200,000 prices of traditional collection
- Classification: 13 groups, 45 subgroups, 108 classes and 196 subclasses; 55 headings and 32 special aggregates
- General calculation method: Laspeyres chain index
- Collection method: personal visits to outlets, e-mail, telephone and internet and scanner data
- Standardised Methodological Report
- File in the Inventory of Statistical Operations: 30138
Last date of update of the methodology
31/01/2026
Methodological documents
- Methodology base 2025
- Main characteristics CPI base 2025
- Link file between ECOICOP ver.1 and ECOICOP ver.2
- Composition of the CPI Special Groups, Base 2025.
- Content of the IPC Subclasses, Base 2025.
- Composition of the CPI Headings, Base 2025
- Estructura ECOICOP v2 IPC e IPCA
- Methodologies previous bases
- Base 2021. Press release on the base change 2021 / Main characteristics CPI base 2021 / Methodology scanner data / Content of the IPC Subclasses, Base 2021. / Composition of the CPI Headings, Base 2021 / Composition of the CPI Special Groups, Base 2021.
- Base 2016. Methodology / Press release: Main characteristics of the CPI, Base 2016 / Classification ECOICOP and links with COICOP-IPC
- Base 2011. Methodology / Press release: Main characteristics of the CPI, Base 2011
- Base 2006. Methodology / Press release: Main characteristics of the CPI, Base 2006
- Base 2001. Methodology / The CPI-2001 system / Link Coefficients Base 1992-Base 2001