Aster & Trujillo

Aster & Trujillo is an Anglo-Spanish, multi-disciplinary advisory firm based in the heart of the City of London, providing integrated tax, legal and accountancy services to corporates, entrepreneurs and high-net-worth individuals operating between the UK and Spain. From its base in London’s legal quarter, the firm acts as a one-stop platform for clients who require co-ordinated cross-border advice on structuring, expansion and compliance.

The firm is particularly recognised for its UK–Spain cross-border expertise, combining local insight, dual-qualified professionals and fluency in both English and Spanish. It advises on the full lifecycle of investment and business activity, from initial market entry and structuring, through day-to-day tax and regulatory compliance, to complex reorganisations and exit.

Core practice areas

• International tax & wealth planning – UK and Spanish personal tax, residence and non-dom issues, asset-holding structures, investment portfolios, real estate and succession planning for internationally mobile clients and their families.
• Corporate & business tax – cross-border structuring, holding and trading company arrangements, VAT and indirect tax, group reorganisations, and tax risk management for mid-market and owner-managed businesses.
• Spanish tax & accountancy – full-service Spanish compliance and advisory support, delivered by a fully qualified and regulated Spanish team, including non-resident tax, property-related filings and ongoing business compliance.
• Business immigration & global mobility – support for UK sponsor licences, Skilled Worker and Global Business Mobility routes, and co-ordinated tax, payroll and social security advice for employees seconded between Spain and the UK, including immigration compliance monitoring.
• Corporate services & governance – company incorporations, registered office and corporate secretarial services, ongoing Companies House obligations and governance support.
• Accountancy & financial reporting – bookkeeping, management accounts, statutory accounts and advisory support for groups with UK and Spanish entities, with a focus on consistency of reporting and alignment to local tax rules.

Sectors and client base

Aster & Trujillo’s client base spans engineering and construction, technology and online services, real estate and private wealth, professional services, education and sports. The firm frequently acts for Spanish and wider European businesses entering or expanding in the UK market, and likewise supports UK and international clients investing in or relocating to Spain, delivering a personalised, bespoke service in both jurisdictions.

The practice is well-positioned to assist:

• UK and European SMEs establishing trading or holding structures in the UK and Spain
• High-net-worth individuals acquiring or restructuring cross-border property and investment portfolios
• International groups managing mobile workforces, secondments and multi-jurisdiction payrolls
• Professional firms seeking a trusted UK–Spain specialist partner for their clients

Distinctive features

• Integrated Anglo-Spanish platform – seamless co-ordination between UK and Spanish tax and accountancy teams allows for joined-up planning, avoiding the disconnect that often arises when separate firms are used in each jurisdiction.
• Client-centred approach – the firm emphasises accessibility and practical, solutions-driven advice, with senior professionals closely involved in each matter and long-term relationships built on trust and transparency.
• Talent and training – the firm invests heavily in structured professional development for its tax, law and accountancy staff, ensuring advice that is technically robust and commercially focused.

From its base in the heart of the City of London, Aster & Trujillo continues to expand its international offering, positioning itself as a go-to adviser for clients requiring high-quality, bilingual tax, legal and accountancy support between the UK and Spain.