Self-employed work among foreigners in Spain grew 9.2% compared to the previous year, reaching 531,568 foreign self-employed workers affiliated with Social Security in July 2026, according to the Ministry of Inclusion, Social Security and Migrations. This growth reflects the growing relevance of these professionals in the Spanish labor market.
The expansion of foreign self-employed work brings challenges for accounting and tax advisory firms, which need to help international clients understand their tax obligations. Daniel Perla, co-founder of Billeo, highlights that translating terms such as VAT, IRPF or quarterly return is not sufficient, as it is necessary to explain concepts such as tax residence, place of service provision and VAT applicability. The profile of these self-employed workers is diverse, including consultants, developers, designers and traders, which demonstrates that there is no single tax solution.
Billeo offers tax and accounting advisory services in English, seeking to go beyond the simple translation of emails to provide comprehensive understanding of the Spanish legal framework. The company assists with issues such as registration as self-employed and billing clients from other countries, with the international billing area being particularly sensitive, since end consumers and businesses are not treated the same way in intra-community operations.
The company has incorporated technology with an online platform for document management and deadline tracking, but analysis and interpretation remain the responsibility of prepared consultants. This growth represents a positive trend of integration of international professionals in the Spanish market and highlights the need for advisory services adapted to the specific needs of these workers.




