Back to the blog

How to Obtain Grants in Spain According to the General Subsidy Law

Equipo Captaru · August 27, 2026

📍 This guide discusses subsidies in Spain (Law 38/2003). Captaru operates in various countries; each has its own aid and regulations.

Receiving a subsidy can be a vital boost for any project, whether it's for a social entity, a company, or an individual. However, this support comes with a series of responsibilities and regulations that are crucial to know. In Spain, the cornerstone of this entire system is the General Subsidy Law, or Law 38/2003.

It's not just a mere formality. Understanding it thoroughly will save you headaches, potential penalties, and, most importantly, allow you to make the most of funding opportunities without stumbling blocks. Let's break it down together.

What is the General Subsidy Law (Law 38/2003)?

The General Subsidy Law (LGS), officially Law 38/2003, of November 17th, is the basic regulation governing the granting and management of public subsidies in Spain. Its main objective is to ensure transparency, objectivity, equality, and efficiency in the use of public funds allocated to support activities of general interest.

Think of it as the instruction manual that both the administrations granting aid and the entities or individuals receiving it must follow. It establishes everything from how calls for applications are published to how expenses are justified, including grounds for repayment and offenses and sanctions.

Who does the General Subsidy Law affect?

It affects a wide spectrum of actors:

  • Public Administrations: state, regional, and local, as well as their linked bodies and entities, when acting as subsidy granters.
  • Beneficiaries: any natural or legal person (social entities, companies, freelancers, universities, etc.) that receives public funds through a subsidy. This includes you if your entity is aiming for aid.
  • Collaborating Entities: those that, on behalf of the administration, disburse or distribute funds, or manage the subsidy.

Key Obligations of Subsidy Beneficiaries

As a subsidy beneficiary, the General Subsidy Law imposes a series of duties that you cannot overlook. Failure to comply can have serious consequences, from losing the aid to financial penalties.

1. Comply with the Objective and Purpose of the Subsidy

The subsidy is granted for a specific purpose, and that purpose is sacred. You cannot use the money for anything else. If you receive aid for a social inclusion project, you cannot use it to renovate the office if it wasn't planned. This implies:

  • Executing the activity or project under the terms and deadlines established in the call for applications and the grant resolution.
  • Proving compliance with the requirements and conditions that led to the grant.

2. Justification of Subsidies

This is probably the most critical point and where most problems usually arise. The justification of subsidies is the process by which you demonstrate to the administration that you have spent the subsidy money in accordance with what was established and for the intended purpose.

Generally, this involves:

  • Submitting a justification account: which will include a performance report (describing the activities carried out and the results obtained) and an economic report (with a classified list of expenses and investments, invoices, payment documents, etc.).
  • Maintaining a separate accounting system or specific accounting code for the subsidy, if required by the call for applications, to facilitate its monitoring and control.
  • Retaining the supporting documentation (invoices, contracts, payslips, etc.) for the legally established period, which is usually 4 years.

3. Proof of Compliance with Tax and Social Security Obligations

Before receiving the subsidy and at the time of justification (or at other times determined by the call for applications), the administration usually requires you to prove that you are up-to-date with your tax and Social Security obligations. This is an indispensable requirement for most aid.

4. Undergo Verification and Control Actions

The administration has the right to verify that you are complying with your obligations. This may involve:

  • On-site visits to your entity or to the places where the project is being carried out.
  • Requests for information or additional documentation.
  • Audits by control bodies, such as the General State Treasury.

5. Communicate Changes or Incidents

Any significant modification to the initial conditions of the subsidy, in the execution of the project, or in the entity's situation (e.g., changes of address, legal representative, etc.) must be communicated to the granting administration. Failure to do so can be considered a breach.

6. Publicity and Dissemination

Many subsidies require that the public nature of the funding received be acknowledged. This can translate into:

  • Mentioning the subsidy in publications, outreach materials, or the entity's annual report.
  • Using the logo of the granting entity on project posters or materials.

What Happens If I Don't Comply? Subsidy Repayment

If any of these obligations or the conditions established in the call for applications are not met, the General Subsidy Law provides for subsidy repayment. This means the administration can demand the total or partial return of the amounts received, plus corresponding default interest.

The grounds for repayment are varied and detailed in Article 37 of the LGS, but the most common are:

  • Failure to comply with the obligation to justify.
  • Obtaining the subsidy by falsifying the required conditions.
  • Total or partial non-compliance with the objective, activity, or project, or failure to adopt the behavior that justifies the grant.
  • Resistance, excuse, obstruction, or refusal to verification and control actions.

Law 38/2003 and Your Entity: A Practical Approach

For any entity that manages or aspires to manage public subsidies, knowing Law 38/2003 is not optional; it's fundamental. It allows you to:

  • Assess Viability: Before applying, understanding the obligations helps you decide if your entity has the capacity to meet them.
  • Plan Management: Knowing what documentation you'll need and how to justify allows you to organize your administrative and accounting processes from the start.
  • Avoid Errors: Good knowledge prevents non-compliance and the unpleasant surprise of having to return funds.
  • Maximize Impact: By managing funds correctly, you ensure the continuity and success of your projects.

Conclusion: The LGS, Your Ally for Success

The General Subsidy Law is not an obstacle but a framework that provides legal certainty and transparency to the aid system. For your entity, understanding its principles and your obligations as a subsidy beneficiary is the best guarantee for accessing public funding, managing it efficiently, and avoiding the dreaded subsidy repayment.

Ultimately, it's about doing things right, with rigor and transparency. If you're looking for subsidies and want to ensure you meet all the requirements, having a tool to guide you through the process can make a big difference. At Captaru, we help you find the aid that best suits your project and prepare your applications, so you can focus on what you do best: generating impact. Register for free and start exploring your opportunities.

Find your grants with Captaru

Sign up for free and let the AI assistant tell you which calls fit your project. Your first two projects, free of charge.

Start for free
Subsidies in Spain and the General Subsidy Law · Captaru