Legal Advice for Individuals and Companies
We assist our private clients in matters ranging from real estate transactions, inheritance planning, residency procedures, and civil litigation, to more specialized services such as asset protection, wealth management, and immigration law.
For corporate clients, we provide business law advisory including company formation, shareholder agreements, corporate governance, commercial contracts, and compliance. Our multidisciplinary team collaborates with in-house and external stakeholders to provide agile and results-driven legal solutions.
We pride ourselves on being a trusted long-term legal partner to our clients, ensuring that their projects are not only compliant, but also strategically structured to promote growth, security and peace of mind.
Accounting and Tax Services for Residents and Non-Residents
Alongside our legal division, Castell Law & Investments offers a full accounting and tax advisory service, particularly designed for international clients with property or commercial activity in the Balearic Islands.
Our accounting department helps clients:
Register with Spanish tax authorities
Comply with all tax obligations (e.g. IRNR, IRPF, IVA, IBI)
Prepare and file income tax returns for residents and non-residents
Advise on double taxation agreements
Manage business accounting and payroll
Provide ongoing tax optimization strategies
If you are a non-resident owning property in Mallorca or Ibiza, our team ensures that you meet your annual tax obligations, avoid penalties, and benefit from any applicable deductions. We also represent clients before tax authorities and manage procedures with the Spanish Tax Agency (AEAT).
For businesses, we deliver monthly accounting, bookkeeping and financial reporting, tailored to the requirements of both startups and established companies. Our accountants work side by side with our legal team to detect any legal implications, prevent tax risks, and implement efficient solutions.
Why Choose Castell.law?
Our firm is distinguished by its:
✅ International expertise with local insight
✅ Multilingual team (English, Spanish, German, French)
✅ Dedicated departments in law, accounting, immigration and real estate
✅ Personalized service for every client profile
✅ High standards of confidentiality, precision, and reliability
With offices in Mallorca and operations across the Balearic archipelago, we are ideally positioned to assist clients in Palma, Calvià, Andratx, Santa Eulària, Maó, and beyond.
Whether you’re planning to invest, relocate, launch a business or resolve a legal issue, Castell Law & Investments is your trusted partner in the Balearic Islands.
