A source-led starting point
This index brings together selected sources used in the Spain guides. Some links lead to an individual law; others lead to an official collection, court or regulator. It is a research starting point, not an exhaustive or certified consolidation of every applicable rule.
Read the operative text with amendments, commencement, territorial application and authoritative language in view. A current website or search result does not itself establish that an older downloaded document remains the correct version.
Legislation, courts & regulators
Administrative Jurisdiction Act 29/1998 — official record
Administrative litigation legislation and source record.
Open the legal source ↗AEPD — GDPR and AI guidance
Official data-protection analysis for AI systems; current AI legislation requires additional sources.
Open the legal source ↗Andalusian Government — business taxes
Official explanation of national, regional and local business-tax layers; other regions require separate checking.
Open the legal source ↗Arbitration Act 60/2003
Spanish arbitration framework and award-related procedures.
Open the legal source ↗Banco de España — supervisory responsibilities
Banking supervision and distinction from CNMV and insurance responsibilities.
Open the legal source ↗BOE — Civil Code and supplementary legislation
Current official collection of general civil law; autonomous civil-law systems require separate analysis.
Open the legal source ↗BOE — official Spanish legislation
Official statutes, consolidated texts and legal codes.
Open the legal source ↗Building Regulation Act 38/1999
Building participants, responsibilities and construction-related obligations.
Open the legal source ↗Capital Companies Act
Spanish capital-company formation, governance and shareholder framework.
Open the legal source ↗Civil Procedure Act
Civil proceedings and enforcement; select the operative version.
Open the legal source ↗Commerce Ministry — investment control
Current Spanish foreign-investment screening and associated legal sources.
Open the legal source ↗Consolidated Insolvency Act
Spanish insolvency and restructuring framework with current amendments.
Open the legal source ↗European Commission — navigating the AI Act
Current EU AI scope and phased application, including 2026 changes.
Open the legal source ↗General Administration — consumer rights
Official explanation of consumer legislation and product-safety rights.
Open the legal source ↗Inclusion Ministry — immigration regulations
Official explanation of the immigration regulation implemented in May 2025; check subsequent changes.
Open the legal source ↗Insurance supervision and solvency Act 20/2015
Spanish insurer supervision, solvency and competent-authority framework.
Open the legal source ↗Maritime Navigation Act 14/2014
Spanish maritime navigation and related private-law framework.
Open the legal source ↗OEPM — trade mark and business-name searches
Official search for trade marks effective in Spain.
Open the legal source ↗Organic Law 1/2025 — justice efficiency reforms
Court organisation and appropriate dispute-resolution measures, including scope and exclusions.
Open the legal source ↗Registrars — Property Registry
Official property-registry searches and title information.
Open the legal source ↗Tax Agency — public procurement legislation
Official collection of public-sector procurement legislation.
Open the legal source ↗Treasury — financial sanctions obligations
Official sanctions compliance and competent-authority guidance.
Open the legal source ↗Urban Leases Act 29/1994
Spanish urban tenancy rules with amendment and commencement history.
Open the legal source ↗Using the sources
Identify the legal issue and relevant date, then check the current primary material and any procedural guidance. Record the version consulted and distinguish official text from translations or commentary.
Focused legal research
For a transaction, dispute or opinion, we can help frame the research question and coordinate the local professional analysis needed to use the sources in practice.
These guides provide general legal information. The operative law, deadlines, professional permissions and scope of work are confirmed for the particular matter. Representation is arranged through appropriately authorised local practitioners.