Single-Member Private Limited Company (SLU): Formation, Advantages and Tax in Spain 2026
How to form an SLU in Spain in 2026: minimum capital, steps, corporate tax advantages vs self-employed IRPF, limited liability and corporate veil piercing.
# Single-Member Private Limited Company (SLU) in Spain 2026
The SLU is the most popular structure for Spanish entrepreneurs seeking limited liability and tax optimization. Governed by the Companies Capital Act (TRLSC, RDL 1/2010).
Key facts
- Minimum capital: €3,000 (fully paid up)
- Formation cost: ~€530–1,230 or ~€300–400 via online CIRCE system (24–48h)
- Corporate tax: 25% (15% for first two profitable years)
- Optimal structure: salary (IS-deductible expense) + dividend (savings tax 19–28%) for income >€40–50k/year
Limited liability
Sole shareholder is only liable up to their capital contribution. Courts pierce the corporate veil when: personal/company assets are mixed, the company is used to defraud creditors, or deliberate undercapitalisation occurs (STS 28/05/1984 doctrine).
Mandatory obligations for sole shareholder
- Contract register: document non-ordinary transactions between sole shareholder and company
- Sole shareholder decisions must be minuted and signed
- Mandatory dissolution if losses exceed 2/3 of capital (Art. 363 TRLSC), directors personally liable for debts incurred after obligation arises
Lexiel simulates IS vs IRPF savings, searches corporate veil and director liability case law and drafts articles of association or sole shareholder/company agreements.
Try Lexiel free · 28 days
Use code LEX-BLOG for double the standard trial period. Cancel anytime, no commitment.