August is the month of quiet design. While the market slows down, coastal cafes and mobile notes fill up with diagrams, budgets, and projections for future businesses. If you’re using these weeks to structure your next project with other co-founders, there’s a document that will determine the success or failure of the venture long before you earn your first euro: the startup’s shareholders’ agreement. 📑

At Ruiz & Associates, we know that initial enthusiasm is a powerful motivator, but friendship and trust are not effective business management tools. A well-structured agreement reached in mid-August is the guarantee that the project will survive until December.

🧠 Why draw up the agreement before stepping foot in the Notary?

Many entrepreneurs make the mistake of thinking that the standard articles of association signed when transitioning from a sole trader to a company are sufficient to regulate the company’s operations. Nothing could be further from the truth.

The articles of association of a Limited Liability Company are public and generic. The shareholders’ agreement, on the other hand, is a private, flexible, and confidential document that governs the actual “rules of the game” between the founders: who does what, how strategic decisions are made, and what happens if things go wrong (or exceptionally well). Drafting it now, with the cool of summer, avoids emotional tensions once the business is up and running. ⚖️

🔒 3 Critical clauses that cannot be missing in 2026

In today’s startup ecosystem, investors and founders alike demand sophisticated structures. If you’re drafting your document this holiday season, be sure to include these three technical building blocks:

• Vesting Clauses: Don’t give away shares on day one. Vesting ensures that founders gradually build their stake in the company (for example, over 4 years). If a partner decides to leave the project after six months to return to their corporate job, they won’t take a vital part of the company with them that they haven’t worked for. ⏳
• Drag-along and tag-along rights: Vital for the company’s financial future. Drag-along rights prevent a minority shareholder from blocking the sale of 100% of the startup if an attractive purchase offer is received. Tag-along rights protect minority shareholders, guaranteeing they can sell their shares under the same conditions as the majority shareholder if the latter decides to exit.
• Definition of Good Leaver and Bad Leaver: This regulates the conditions under which a partner leaves. If someone is dismissed for gross negligence (bad leaver), the company must have the right to repurchase their shares at par value (very cheaply). If they leave due to force majeure or health reasons (good leaver), the financial settlement must be fair and at market value.

You can learn more about the framework for the protection and certification of innovative projects on ENISA’s official website.

🤖 Operations and digitalization: Preparing the ecosystem

A good shareholders’ agreement for 2026 should also outline how the company’s day-to-day technology will be managed. Defining from the outset which accounting and ERP management technology tools will be used to ensure mutual financial transparency prevents misunderstandings between the technical and sales departments. 📊

Absolute clarity in data reporting and automation are not just for the Treasury; they are, above all, to maintain peace and trust among the project’s own investors.

🏢 Ruiz & Asociados: Legal Architecture for Scaling Projects

At Ruiz & Associates, we’ve spent over 30 years transforming great ideas into solid and secure corporate structures. A startup’s shareholders’ agreement isn’t something you download from an online template; it needs to be tailor-made, reflecting the founders’ true strengths, fears, and objectives. 🤝

Take advantage of mid-August to lay the foundations for your future business. Our legal team, specializing in the corporate environment, will give legal form to your agreements, protecting your assets and intellectual property, and ensuring your company is attractive from the start for future funding rounds.

Are you developing a business idea and want to draft a professional co-founders’ agreement? At Ruiz & Associates, we build the foundations of your success. Contact our expert team today and prepare for a flawless September launch. 🚀