Spain's employment and HR services sector encompasses over 300 authorised staffing agencies (ETT), hundreds of recruitment agencies and a growing number of HR outsourcing platforms and PEO/EOR providers supporting international companies entering the Spanish market. The intersection of labour law, Social Security and tax creates a uniquely high-compliance-risk environment. In 2026, with the 2021 labour reform fully bedded in and international demand for Spanish talent continuing to rise, specialist tax and HR advisory is essential for companies operating in this space.
The Employment Services Ecosystem: Four Models, Four Tax Frameworks
Spain’s employment services market operates through four main models, each with a distinct regulatory and tax profile:
Staffing agencies (ETT): regulated by Ley 14/1994 and authorised by the SEPE. The only entities legally permitted to place workers with client companies on a temporary basis. Must deposit a financial guarantee and meet specific training and health-and-safety obligations.
Outsourcing / business process outsourcing (BPO): do not assign workers — they contract to deliver a complete service outcome (cleaning, security, logistics, customer service). The legal and tax risk lies in ensuring the arrangement is genuine outsourcing rather than disguised worker assignment.
Recruitment agencies: act as intermediaries between employers and candidates. May be for-profit (subject to 21% IVA) or non-profit (exempt). For-profit agencies must register under RD 1796/2010.
PEO/EOR (Employer of Record): act as the formal employer in Spain on behalf of foreign companies. Assume all formal employer obligations before Spanish authorities.
ETT Taxation: IS and IVA in Practice
Staffing agencies have a distinctive P&L structure: revenue is the placement fee invoiced to client companies (covering the worker’s labour cost plus the agency margin); the principal cost is the labour cost of placed workers.
Impuesto sobre Sociedades: the standard 25% rate applies. With net margins of 2-8% on turnover, the IS base is modest relative to revenue. Key IS issues include: deductibility of worker costs, correct periodisation of payroll, and valuation of termination indemnities for placement contracts.
IVA: worker placement services are taxable at 21%. The ETT invoices the full placement fee monthly; the client recovers the IVA if it conducts taxable activities. ETTs have minimal deductible input IVA (payroll is the main cost and does not carry IVA), so they typically have positive IVA balances to pay rather than refunds to claim.
HR Outsourcing: The Legal Line Between Lawful Service and Illegal Assignment
The boundary between lawful outsourcing and illegal worker assignment is the most significant legal and tax risk in the sector. Art. 43 of the Estatuto de los Trabajadores prohibits worker assignment outside the ETT framework, imposing joint liability on both the assigning and the receiving company.
Labour courts and the ITSS use functional tests to distinguish genuine outsourcing from disguised assignment:
- Organisational authority: who directs the workers’ daily activities? If the client company gives daily instructions, this is evidence of assignment.
- Own means: does the service provider use its own equipment, premises and technical resources?
- Result vs. availability: does the provider guarantee a service outcome, or merely provide personnel availability?
- Employer identity: are workers aware of who their employer is?
Contract documentation — a detailed services agreement specifying the outcome, the coordination protocol and the service provider’s assumption of operational risk — is the first line of defence in an inspection. BMC conducts outsourcing contract audits as a preventive measure.
PEO/EOR: Formal Employer Obligations and Permanent Establishment Risk
The Employer of Record model has grown significantly in Spain as technology companies globalise their teams. The EOR’s formal obligations as Spanish employer are comprehensive:
- Registration of each employee with the TGSS (Régimen General)
- Correct application of the applicable collective bargaining agreement (salaries, working hours, leave)
- Monthly payslips, IRPF withholding and quarterly Modelo 111 filing
- Annual Modelo 190 summary return
- Management of sick leave, maternity/paternity leave and other statutory situations
Permanent establishment risk: if the employee has authority to conclude contracts binding the foreign company, or if the foreign company has fixed premises in Spain, a permanent establishment may exist under art. 5 of the applicable OECD Model treaty. A PE triggers IS obligations for the foreign company on profits attributable to the Spanish activities. The EOR must advise its foreign clients on this risk and structure the arrangement accordingly — typically by limiting the employee’s formal authority and ensuring genuine business decisions are made outside Spain.
Flexible Benefits and Tax-Efficient Remuneration
Flexible benefits plans are a core service offering for HR companies and a genuine competitive advantage for employers seeking to attract talent. The most impactful exemptions under Spanish law are:
| Benefit | Legal basis | Annual exemption |
|---|---|---|
| Private health insurance | Art. 42.3.f Ley IRPF | €500/insured person (€1,500 with disability) |
| Restaurant vouchers | Art. 42.3.a Ley IRPF | €11/working day |
| Public transport | Art. 42.3.b Ley IRPF | €136.36/month |
| Nursery / childcare | Art. 42.3.e Ley IRPF | Market price (no fixed cap) |
| Work-related study | Art. 42.3.c Ley IRPF | €2,000/year |
HR companies administering flexible benefits platforms must maintain documentation of each benefit plan and employee election to support the exemption.
International Employment: The Art. 7.p) Exemption and Beyond
The art. 7.p) IRPF exemption is the most valuable tool for employees posted abroad by Spanish employers. It shelters up to €60,100 per year of employment income from Spanish IRPF when the work is physically performed outside Spain for a non-resident employer or foreign PE.
Key conditions: (1) genuine physical presence abroad; (2) the work must benefit a non-resident entity; (3) the country of performance must not be a tax haven; (4) the employee must remain a Spanish tax resident during the posting.
Beyond the exemption, international employment structures must consider: applicable double tax treaties (art. 15 OECD Model — residence state taxes unless the 183-day test and employer/PE tests are met); Social Security coordination under EU Regulation 883/2004 or bilateral agreements; and the shadow payroll obligations that may arise in the host country.
How BMC Can Help
BMC advises employment and HR sector businesses across the full range of legal, fiscal and compliance issues:
- Outsourcing contract audits to mitigate illegal assignment risk
- PEO/EOR structuring and permanent establishment analysis for foreign clients
- Flexible benefits plan design and compliance documentation
- International employment tax planning (art. 7.p) exemption, shadow payrolls, treaties)
- Social Security audit and regularisation
Contact our team for an initial assessment.
