IS tax 15% for startups: ENISA status criteria
Spanish tax legislation has undergone fundamental changes. The introduction of new legal mechanisms created a unique fiscal environment for technology businesses. The main optimization tool is the IS tax 15% for startups. This benefit radically reduces the fiscal burden on young companies. However, access to it is strictly regulated.
The regulatory basis is Ley 28/2022 (Startup Law). This normative act introduced the concept of Empresa Emergente (innovative company) into the legal field. Obtaining this status does not happen automatically. Complex state certification is required. The evaluating body is the state agency ENISA. It delivers the verdict on the project's compliance with the stated criteria.
Many founders underestimate the complexity of the procedure. The IS tax 15% for startups requires flawless legal and financial planning. Errors during the business structuring stage lead to rejections. The Spanish Tax Agency (AEAT) strictly controls compliance with all conditions. The slightest deviation from the norms entails the loss of benefits. This article presents a deep legal analysis of the certification criteria. We will analyze the hidden traps of the legislation in detail.
Conditions for applying the IS tax 15% for startups
The IS tax 15% for startups applies in the first tax period with a positive base and during the three subsequent years if the status is maintained.
The standard corporate tax rate in Spain is 25%. Impuesto sobre Sociedades (IS) is the main direct tax for legal entities. Reducing the rate to 15% represents a colossal competitive advantage. Such preferential SL taxation allows allocating freed funds to product development. However, applying the reduced rate is subject to strict imperative norms.
First, the company must be officially recognized as an Empresa Emergente. This status is confirmed by an extract from the Commercial Registry (Registro Mercantil). Second, the benefit is activated only when a positive tax base arises. If the company generates losses, the benefit is carried forward to future periods. The four-year countdown begins from the first profitable year.
The legislator established strict restrictions on the ownership structure. The company must not belong to a group of enterprises lacking startup status. The definition of a group is given in Article 42 of the Spanish Commercial Code. Creating a startup through a merger or spin-off from a traditional business is also prohibited. This prevents the artificial splitting of large corporations for tax benefits.
An important condition is the territorial link. At least 60% of employment contracts must be concluded in Spain. This requirement aims to stimulate the national labor market. The tax service verifies this parameter annually. Data is cross-checked with Social Security (Seguridad Social) databases. Violating the quota leads to the automatic loss of the right to the IS tax 15% for startups.
Dividend ban and age limits (Ley 28/2022)
The law strictly prohibits dividend distribution to maintain startup status. The company's age must not exceed five years, or seven years for biotechnology.
The most dangerous trap of Ley 28/2022 lies in the dividend policy. The Spain startup law categorically prohibits paying dividends to founders. The legislator's logic is extremely clear. The state provides a tax benefit for reinvesting profits into company growth. Profit extraction by founders contradicts the venture development concept.
If the general shareholders' meeting decides to pay dividends, the Empresa Emergente status is annulled. Annulment occurs the day after the decision is made. The company is automatically transferred to the standard 25% rate. Furthermore, the tax service can initiate a recalculation for previous periods. This threatens serious penalties and the accrual of interest.
Age limits are also strictly regulated. Generally, no more than five years should pass since the company's registration. For enterprises in biotechnology, energy, and industry, the limit is increased to seven years. The starting date is the day of entry into the Commercial Registry. If a company exceeds this age, it loses its startup status. The IS tax 15% for startups ceases to apply from the next financial year.
The law also prohibits listing on regulated stock markets. If a startup goes public (IPO), it is recognized as a mature business. The innovative company status is lost immediately. All these restrictions require careful strategic planning. Founders must clearly understand the planning horizon and the exit strategy.
Empresa Emergente certification procedure through ENISA
Certification is carried out through the state agency's electronic portal. The process requires submitting constituent documents, financial statements, and a detailed project business plan.
The status acquisition process is fully digitized. The application is submitted via the official ENISA portal. A legal entity's electronic certificate is required for authorization. The process begins with filling out a comprehensive questionnaire. The applicant must provide exhaustive information about the business model, team, and finances.
The key document is the shareholders' agreement (Pacto de Socios). It must reflect the venture nature of the enterprise. Financial reporting is also mandatory. Cuentas Anuales for previous periods are uploaded to the system in PDF format. If the company was created recently, an interim balance sheet is provided. Tax transparency is an absolute priority for the state agency.
The evaluation process takes up to three months. ENISA involves independent experts to analyze the technological component. During the review, the agency may request additional documents. A strictly limited time is given for the response (usually 10 working days). Missing the deadline leads to the archiving of the case. Successful innovative company certification concludes with the issuance of an official resolution. This document is sent directly to the Commercial Registry.
7 mandatory innovation criteria (Escalabilidad)
The agency evaluates the project based on seven scalability parameters. Key factors include technological innovation, market growth potential, and the founding team's qualifications.
The concept of Escalabilidad (scalability) is central to the certification process. ENISA uses a point-based scoring system. The project must achieve a minimum passing score across all factors. Special attention is paid to the I+D+i (research, development, and innovation) component. Below is the complete verification algorithm for compliance with the seven criteria.
Roadmap for evaluating Escalabilidad criteria:
Degree of innovation (Grado de innovación):
Essence: Presence of unique technology or a radically new business model.
Metrics: Registered patents, software copyrights, algorithms.
Requirement: The product must solve an existing market problem in a new way.
Market attractiveness (Grado de atractivo del mercado):
Essence: Target market size and its growth dynamics.
Metrics: TAM (Total Addressable Market), SAM, and SOM analysis.
Requirement: The market must demonstrate steady double-digit growth (CAGR).
Company life cycle stage (Fase de vida de la empresa):
Essence: Current product development status.
Metrics: Presence of an MVP (Minimum Viable Product), initial test sales.
Requirement: The project must move beyond a mere idea and have a prototype.
Business model (Modelo de negocio):
Essence: Ability to generate revenue with minimal marginal costs.
Metrics: CAC (Customer Acquisition Cost) to LTV (Lifetime Value) ratio.
Requirement: Revenue must grow exponentially, while expenses grow linearly.
Competitive environment (Competencia):
Essence: Presence of a technological moat and barriers to entry.
Metrics: Comparative analysis with direct and indirect competitors.
Requirement: A clearly articulated unique value proposition (UVP).
Founding team (Equipo):
Essence: Experience, competencies, and involvement of the founders.
Metrics: Relevant industry experience, equity distribution, vesting.
Requirement: The team must cover key competencies (CEO, CTO, CMO).
Dependence on suppliers (Dependencia de proveedores):
Essence: The business's level of autonomy from external contractors.
Metrics: Supply chain diversification, ownership of key infrastructure.
Requirement: Absence of critical dependence on a single monopoly supplier.
Each criterion requires documentary evidence. Unsubstantiated claims are not accepted. ENISA experts conduct strict due diligence on the submitted data.
How to properly draft a business plan for approval
The business plan is the main document in the certification process. It must be written in dry, analytical language. Emotional descriptions and marketing clichés are unacceptable. The document must demonstrate a deep understanding of unit economics. The financial model is built on realistic assumptions. Three scenarios are mandatory: pessimistic, base, and optimistic.
A high-quality business plan for a residence permit and ENISA certification has a strict structure. It begins with an Executive Summary. This is followed by a description of the problem and the proposed solution. The market analysis section must rely on current research from recognized agencies (Gartner, McKinsey). The financial plan must detail the cost structure for the next three years. Special attention is given to marketing expenses and the payroll fund.
VissumLex Practice — Main reasons for ENISA rejections and methods to mitigate them
In the practice of the VissumLex law firm, we regularly encounter rejections for applications prepared independently by founders. An analysis of 2025-2026 cases revealed typical errors. Below is a checklist of the main reasons for rejection and methods to eliminate them.
Rejection Reason 1: Lack of a technological moat. The agency sees no barriers to competitors copying the product.
Mitigation Method: Registering source code rights with the AEPD. Filing patents for utility models. Detailed description of the database architecture in the business plan.
Rejection Reason 2: Unrealistic financial model. Projected revenue growth is not supported by the marketing budget.
Mitigation Method: Building a bottom-up model. Strict linkage of the sales forecast to the cost per lead (CPL) and conversion rate.
Rejection Reason 3: Weak team involvement. Founders work in the startup part-time.
Mitigation Method: Implementing strict vesting conditions in the shareholders' agreement. Signing commitments to transition to full-time after raising a round.
Rejection Reason 4: Traditional service model. The project is a standard agency disguised as an IT platform.
Mitigation Method: Shifting focus to process automation. Proving that client base growth does not require proportional staff hiring.
Compliance with these recommendations is critically important. The IS tax 15% for startups is available only to those who can prove their innovation through numbers and facts.
IS tax 15% for startups: Frequently Asked Questions
This section presents a legal analysis of the most common questions. The answers are based on current law enforcement practice and clarifications from the Spanish tax service.
Can a consulting agency obtain startup status?
No, traditional consulting services do not meet scalability criteria. The status is granted only to product companies with high technological innovation.
Consulting implies a linear relationship between revenue and the number of employees. The more clients, the more consultants must be hired. This directly contradicts the Escalabilidad concept. ENISA automatically rejects applications from classic legal, accounting, or marketing agencies. Exceptions are projects where consulting is fully automated using proprietary artificial intelligence algorithms. In this case, the platform itself is the product, not the specialists' working hours.
How many years does the 15% preferential rate last?
The IS tax 15% for startups applies for a maximum of four years. The countdown begins from the first year a positive tax base is achieved.
The Spain startup law clearly fixes this period. If a company obtained the status in 2026 but generated losses for the first two years, the benefit does not expire. It activates in 2028 when the first profit appears. From this moment, the 15% rate will apply in 2028, 2029, 2030, and 2031. The most important condition is the continuous maintenance of the Empresa Emergente status throughout this period. If the status is lost in the third year, the benefit is annulled prematurely.
What happens if a startup pays dividends to founders?
Paying dividends entails the immediate loss of innovative company status. The enterprise is automatically transferred to the standard 25% corporate tax rate.
This is the strictest rule of Ley 28/2022. The tax service (AEAT) monitors profit distribution through the annual declaration (Modelo 200). If a dividend payment is recorded, the consequences occur immediately. The company loses the right to preferential SL taxation. Moreover, if dividends are paid mid-year, the entire current financial year will be taxed at 25%. The law provides no exceptions or mitigating circumstances. All profits must be directed exclusively toward business development.
How long does ENISA take to review a certification application?
The legally established application review period is three months. In the absence of a response, the principle of positive administrative silence applies.
The procedure is strictly regulated. The countdown begins from the moment the full document package is uploaded to the portal. If the agency does not issue a decision within three months, the application is considered approved. This mechanism is called silencio administrativo positivo. However, in practice, ENISA often suspends the time limit. This occurs when sending requests for additional documents (requerimientos). The time spent by the applicant preparing the response is not included in the three-month period.
Is it necessary to have hired employees before applying?
The law requires that at least 60% of the staff have employment contracts in Spain. However, at the application stage, the staff may consist only of founders.
Having hired employees is not a mandatory condition to start the procedure. Many projects apply at the MVP stage when only founders work in the company. The main requirement concerns localization. If the company has only two founders, both (or at least one, which is 50%, but the law requires 60%, so in the case of two people, both) must be Spanish residents with contracts. As new employees are hired, the 60% Spanish contract quota must be strictly observed.
Can the benefit be applied if the founder is a non-resident?
Yes, the tax benefit applies to the legal entity. The founders' tax residency does not affect the company's corporate tax rate.
The IS tax 15% for startups is a corporate tax. It is tied to the status of the legal entity itself (Sociedad Limitada or Sociedad Anónima). The fact that one or more founders are Spanish tax non-residents does not deprive the company of the right to the benefit. However, non-residents must obtain a foreigner identification number (NIE) to register the company. It is also important to remember the 60% rule for employment contracts in Spain for the staff. The legal entity itself must be a Spanish tax resident.
Request professional support for your project. The VissumLex law firm offers comprehensive services for technology businesses. ENISA certification support and business plan preparation (from 1,500 EUR). We will ensure your project fully complies with legal requirements and minimize rejection risks. Contact our lawyers for an initial analytical consultation.
