Self-administered questionnaire: Web-based

BBS is a data set constrcuted by BPLIM based on Banco de Portugal's Monetary and Financial Statistics (Estatísticas Monetárias e Financeiras). Built on an individual and monthly basis, Banco de Portugal's Monetary and Financial Statistics covers all the monetary financial institutions resident in Portugal that are subject to the prudential supervision of Banco de Portugal.

The Bank Balance Sheet Database collects the balance sheet data for all monetary financial institutions (MFIs) that were in operation in Portugal between September 1997 and December 2020. Non-monetary financial agents are not covered in the database. In case an institution stops to be classified as MFI, data reporting will be discontinued. Some MFIs in Portugal have experienced acquisitions and/or mergers, which induced asset/liability flows from one institution to another.