Banking Law and Decentralized Aviation Finance in Spain

Introduction

Decentralized aviation finance refers to raising, managing or transferring funding for aircraft, airlines, airports, drones, maintenance businesses or sustainable aviation projects through distributed digital systems. These systems may use blockchain records, tokenised assets, smart contracts, crowdfunding platforms, digital-payment tools or decentralised-finance structures.

In Spain, decentralized aviation finance is not a separate legal category. Its legality depends on what the arrangement actually does. A token representing a share in an aircraft-leasing company may be a financial instrument. A token promising repayment or a return linked to aviation revenue may be a security, a loan, an electronic-money token or another regulated crypto-asset. A digital platform that gathers investors for an airport project may be a crowdfunding service. Therefore, the label “decentralized” does not remove banking, investor-protection, anti-money-laundering or aviation-law obligations.

The key legal issue is to combine innovation with protection of investors, borrowers, passengers and creditors. Spain applies both national financial law and directly applicable EU rules.

Legal and Regulatory Framework

The principal Spanish financial-market framework is Law 6/2023 on Securities Markets and Investment Services. Where a token gives investors rights similar to shares, bonds, profit-participation rights or other transferable securities, the normal securities regime may apply. The issuer may need an approved prospectus or may need to satisfy an available exemption. Marketing, custody, brokerage and trading activity can also require authorisation.

Regulation (EU) 2023/1114 on Markets in Crypto-Assets, commonly called MiCA, regulates crypto-assets that are not already covered by existing financial-services legislation. It is relevant where aviation projects issue utility tokens, asset-referenced tokens or e-money tokens. MiCA imposes duties concerning white papers, fair communications, governance, conflicts of interest, safeguarding of client assets and market-abuse controls. Crypto-asset service providers must be authorised and comply with operational and prudential standards.

Where a token is a financial instrument, MiCA does not replace securities law. Instead, the issuer and service provider may fall within the Spanish and EU investment-services regime, including MiFID II rules. This distinction is crucial. A token offering economic rights in aircraft-leasing income may look like a crypto-asset but still be legally treated as an investment product.

The EU Distributed Ledger Technology Pilot Regime permits certain authorised market infrastructures to test trading and settlement of tokenised financial instruments. It may support tokenised bonds or shares used for aviation finance, but it does not create a general exemption from investor-protection law.

Crowdfunding may be governed by Regulation (EU) 2020/1503. It can be relevant to smaller aviation projects, such as drone infrastructure, electric-aircraft facilities, airport sustainability projects or aviation-maintenance expansion. The platform must be authorised, provide investment information, assess appropriateness in certain situations and protect non-sophisticated investors.

Aviation, Security and Banking Considerations

Aviation assets are expensive and internationally mobile. Traditional finance therefore relies on clear ownership, security interests, leasing documents, insurance assignments and enforcement rights. Tokenisation cannot replace these legal foundations. A digital token may record an investor’s contractual right, but it does not itself guarantee legal title to an aircraft or priority over other creditors.

Aircraft ownership, mortgages and other security interests require compliance with Spanish aviation, civil and registration rules. Spain’s participation in the Cape Town Convention framework is especially important for international interests in aircraft equipment. Financiers should ensure that the off-chain legal documents, aircraft registration, international interest registration and token-holder rights are consistent. If the smart contract says one thing but the registered security document says another, the registered legal position will normally be decisive against third parties.

Banks involved in decentralized aviation finance must also comply with Law 10/2010 on the prevention of money laundering and terrorist financing. Aviation projects can involve cross-border investors, special-purpose vehicles, digital wallets and high-value asset transfers. Banks and regulated platforms must identify customers, beneficial owners and source of funds, monitor suspicious activity and report where required.

Payment activity may trigger the Spanish payment-services regime implementing PSD2. If a platform holds investor money, executes payment transactions or offers wallets, it may require authorisation as a payment institution, electronic-money institution or crypto-asset service provider. Client money should not be mixed with the operator’s own funds.

Investor Protection and Governance

The central risk is that investors may misunderstand the product. A token promoted as “fractional aircraft ownership” may only give a contractual claim against a project company. The issuer must clearly state whether the investor owns an asset, holds shares, lends money, receives revenue participation or merely accesses a service.

Risk disclosures should address aircraft depreciation, airline insolvency, maintenance costs, grounding, insurance exclusions, exchange-rate exposure, environmental regulation, cyber risk and the possible illiquidity of tokens. Smart contracts should be audited, governed by clear amendment rules and supported by dispute-resolution procedures. Decentralised code cannot eliminate liability for misleading disclosures, defective services or unlawful marketing.

The National Securities Market Commission (CNMV) supervises securities markets and crypto-asset activity within its competence. The Bank of Spain supervises credit institutions, payment institutions and anti-money-laundering compliance in relevant areas. The Directorate General of Civil Aviation and aviation-registration authorities remain important for the underlying aircraft and operational permissions.

Case Laws

Hedqvist v Skatteverket (C-264/14, CJEU): The Court recognised Bitcoin exchange transactions as financial transactions for VAT purposes. Although it did not decide securities regulation, it confirmed that crypto-asset activity has legal and financial consequences despite operating digitally.

Alpine Investments (C-384/93, CJEU): The Court accepted restrictions on investment-service marketing where justified by investor protection and market confidence. This supports strict controls on cross-border marketing of aviation tokens.

Airbnb Ireland (C-390/18, CJEU): The Court analysed whether an online platform was an information-society service. The case is relevant by analogy when deciding whether an aviation-finance platform is merely technical or performs regulated financial intermediation.

VALE Építési (C-378/10, CJEU): The Court emphasised equal treatment in cross-border corporate mobility. Aviation-finance special-purpose vehicles using Spain and other EU states must respect company-law and creditor-protection requirements.

Air Transport Association of America (C-366/10, CJEU): The Court upheld the application of EU environmental rules to aviation operations with international elements. Aviation-finance models must therefore price regulatory and climate-compliance risk.

Banco Español de Crédito v Camino (C-618/10, CJEU): The Court held that national courts must be able to assess unfair consumer terms effectively. If a decentralized platform finances consumers or small operators through standard-form contracts, transparent and fair terms remain essential.

Conclusion

Decentralized aviation finance can widen access to capital and permit fractional investment in aviation projects in Spain. However, a blockchain structure does not avoid financial regulation. The legal result depends on the token’s economic rights, the platform’s activities, the treatment of client money and the legal status of the underlying aircraft. A compliant structure requires proper licensing analysis, robust investor disclosures, registered asset security, anti-money-laundering controls and effective governance of both smart contracts and traditional legal documents.