This guide explains WeZero asset management. Assets represent your buildings, vehicles and equipment, and can be tagged to a subsidiary or left untagged for shared, company-wide use. Energy data can be added per asset as monthly figures or imported from half-hourly CSV files, with UK and ISO date formats supported. Data is held per reporting year and can be pushed to the calculator as a one-off snapshot or kept permanently in sync, so updates to asset data automatically update the linked results. The guide covers creating assets, adding and importing energy data, pushing and syncing to a reporting year, and how asset filters combine with subsidiary filters on the results pages. Asset management is available on paid plans.