ACRONYMS National Statistics Institute

CPI in one click

This section provides different links that facilitate access to the Consumer Price Index (CPI).

In addition, access to other reference indexes is included: Competitiveness Guarantee Index and Reference Index of Housing Rentals.

Consumer Price Index (CPI)

  • Find answers to your questions about the CPI

      • What months need to be included to calculate the CPI variation for a full year? Do the initial and final months need to be repeated?

        To consider a period of 12 months, the initial month and the final month must be the same. In other words, if we wish to calculate the annual variation experimented by the CPI in September 2024 we must compare September 2023 with September 2024 (12 months), and not August 2023 with September 2024 (13 months), nor October 2023 with September 2024 (11 months). This must be done in this manner because the indices refer to the last day of the month, thus, by considering September 2023 this month would not be included within the calculation, but September 2024 would indeed be included.

      • What period needs to be selected to obtain the variation for the natural year?

        The natural year is obtained by considering the period December - December. The explanation of why this needs to be done in this manner is found in the previous section.

      • Can the INE provide advice on the procedure for reviewing a rental contract?

        The INE does not have the authority to advise with regards to the interpretation of contracts, it can only provide the CPI variations between the requested months at any given moment. To update a rental contract with the Consumer Price Index, the variation with the general CPI may be calculated very easily by using the sections that the INE publishes on its web site: Would you like to update a personal income or spending? or How much has the CPI varied since....?

      • Is there any section where the INE publishes CPI forecasts?

        Since January 2011, the INE has published the CPI flash estimate,publication dates of this indicator are available on the calendar.

        This indicator is calculated using the same methodology as that used for the CPI. The difference lies in the information used, since it is necessary to carry out macrofiltering procedures on the data collected at establishments and apply different statistical modelling methods in order to estimate information not yet forthcoming at the time of publication.

        The CPI flash estimate provides information only as a guideline, and therefore, it does not have to coincide with the CPI final data that will be published subject to a fixed publication calendar, around the second week of the month following that referred to in the data.

      • Does there exist a special index for rental premises?

        The INE does not elaborate nor publish a special index for rental premises.

      • Frequently asked questions about the CPI.

Competitiveness Guarantee Index. CGI

According to Act 2/2015, from 30 March, on the Deindexation of the Spanish Economy (BOE 31/03/2015), the INE is responsible for the calculation and monthly publication of the Competitiveness Guarantee Index (CGI).

Reference Index of Housing Rentals (IRAV)

Resolution of December 18, 2024 of the Presidency of INE, which defines the Reference Index of Housing Rentals.

Rental contracts signed after 26 May 2023 shall be reviewed according to the IRAV, in accordance with Law 12/2023 of 24 May on the Right to Housing. To update the rental price in these contracts, see https://www.mivau.gob.es/vivienda/calculadora-precio-alquiler