HBAI provides information on potential living standards in the UK as determined by net disposable income (equivalised). HBAI enables the analysis of changes in income patterns over time. Latest edition information For the 15th edition (April 2025), resamples data have been added to the study alongside supporting documentation. Main data back to 1994/95 have been updated to latest-year prices, and the documentation has been updated accordingly. Users should note that the Secure Access versions of the Family Resources Survey and Pensioners' Incomes statistics data, previously held together with HBAI, have been moved to SNs 9256 and 9257, respectively. Users should note that some documentation may still refer to 'Safe Room' rather than 'Secure Access'. Low income; poverty; inequality; and material deprivation, with the item set and grouping revised substantially from 2023-24.  Labelling of variables Users should note that many variables across the resamples files do not include full variable or value labels. This information can be found easily in the documentation - see the Harmonised Data Variables Guide.