Legal Documents Every Startup Needs in Argentina (2026)
TL;DR: An Argentine startup needs a specific stack of legal documents from day one, incorporation documents matching the entity type chosen, a Founders’ Agreement, IP Assignment Agreements, compliant written employment contracts, NDAs, and, once the product is public, trademark filing documents. Each protects a different part of the business, and each needs to actually reflect Argentine law rather than a translated foreign template. This guide covers what each document needs to contain and when it becomes necessary.
Incorporation documents: the Estatuto or Contrato Social
Every Argentine company needs a founding constitutional document, called an Estatuto for an SA or SAS, or a Contrato Social for an SRL, filed with the General Inspection of Justice (IGJ) or the relevant provincial registry. This document needs to set out the company’s name, corporate purpose, capital structure, and governance rules, and it must be signed before a public notary and, for most entity types, published in the Official Gazette. Getting this document’s corporate purpose clause too narrow is a common, avoidable mistake, a purpose clause that doesn’t cover what the business actually does can create real friction later when opening a bank account or signing a major contract.
Founders’ Agreement
This is the document that governs the relationship between the people who started the company, and it needs to exist before any disagreement between founders arises, not drafted in response to one. It should cover the equity split between founders, a vesting schedule so equity is earned over time rather than owned outright from day one, each founder’s roles and decision-making authority, and what happens to a founder’s equity if they leave voluntarily, are removed, or become unable to continue. Our free Founders’ Agreement template covers this structure in full, and our guide to calculating a fair equity split covers how to actually arrive at the numbers this agreement needs to reflect.
Shareholders’ Agreement
Once the company has shareholders beyond the founding team, an investor, an early employee with equity, a shareholders’ agreement becomes the broader governance document covering all of them, not just the founders. It typically addresses share transfer restrictions, rights of first refusal, board composition, and what happens on a future sale or new funding round. This sits alongside, not instead of, the Founders’ Agreement, which continues to govern the original team’s specific arrangements.
IP Assignment Agreement
This is one of the most consistently overlooked documents, and one of the most expensive gaps to discover later, typically during investor due diligence. Without a signed, explicit assignment, code, designs, and other work product created by a founder, employee, or contractor can legally remain the property of the person who created it, not the company. This needs to cover work created before incorporation as well as ongoing work, and it needs to specifically address any pre-existing code or material a contributor brings into the company. Our complete IP assignment guide covers exactly what this document needs to include.
Employment contracts
Argentina’s Employment Contract Law (Ley de Contrato de Trabajo) imposes real, specific requirements on employment documentation, and a contract that doesn’t reflect them creates genuine exposure, not just a formality gap. A compliant employment agreement needs to correctly classify the role, set out compensation and working conditions clearly, and reflect the actual statutory termination and severance framework rather than a generic at-will clause copied from a different country’s template. Getting this wrong is expensive specifically because severance obligations on termination without cause are calculated by statute, not by what the contract itself claims, meaning an inaccurate contract doesn’t reduce the company’s real exposure, it just hides it until termination actually happens.
Independent Contractor Agreements
Argentine labor authorities and courts actively scrutinise contractor relationships that function like disguised employment, ongoing, exclusive, closely directed work dressed up as a contractor arrangement. A properly drafted contractor agreement needs to reflect genuine independence, scope of work, and payment structure, since a misclassified relationship can retroactively expose the company to the same severance and social security obligations that apply to employees, applied after the fact and without the protections a compliant employment contract would have built in from the start.
Non-Disclosure Agreements
Before sharing anything sensitive with a potential co-founder, investor, contractor, or early hire, business plans, technical designs, customer data, an NDA should be in place. It needs to define exactly what counts as confidential, the receiving party’s obligations, how long confidentiality lasts, and any carve-outs, information the recipient already knew, or that becomes public through no fault of theirs. An NDA signed after sensitive information has already been shared protects nothing that was already disclosed.
Data processing and privacy documentation
Where the startup collects or processes personal data of individuals in Argentina, a privacy notice and internal data handling documentation need to reflect Ley 25.326’s specific requirements. Our complete guide to Argentina’s data protection law covers exactly what this documentation needs to contain.
Trademark filing
Once the business has a name and brand worth protecting, the trademark application itself, filed with INPI, becomes a genuine legal document with real consequences: get the goods and services classification wrong, or the mark description too vague, and the application can face objection or leave gaps in actual protection. Our complete guide to registering a trademark in Argentina and step-by-step INPI filing guide cover what the application itself needs to include, and our guide to handling a trademark opposition covers the document response process if a filed application is challenged.
When each document actually becomes necessary
Before incorporation: Founders’ Agreement, IP Assignment for any pre-incorporation work, NDAs for early conversations with anyone outside the founding team.
At incorporation: the Estatuto or Contrato Social matching the entity type chosen.
Before the first hire: a compliant written employment contract, or a properly structured contractor agreement.
Before taking outside investment: a Shareholders’ Agreement.
Before collecting any user or customer data: Ley 25.326-compliant privacy and data processing documentation.
Before the brand gains public visibility: trademark application documents filed with INPI.
Frequently asked questions
What should a Founders’ Agreement in Argentina actually include?
At minimum, the equity split between founders, a vesting schedule, each founder’s roles and decision-making authority, and what happens to a founder’s equity if they leave voluntarily, are removed, or can no longer continue. It should be signed before the company begins operating in earnest, not after a disagreement makes it necessary.
Is a verbal agreement between co-founders enforceable in Argentina?
Argentina generally recognises freedom of form for contracts, meaning a verbal agreement can have legal weight, but proving its exact terms later is genuinely difficult without anything written down. For something as consequential as an equity split between founders, a signed, specific written agreement is the only reliable way to avoid a dispute over what was actually agreed.
Do I need a written employment contract for every hire in Argentina?
Yes, in practice, given how specific Argentina’s Employment Contract Law is about classification, compensation, and termination. A written contract that doesn’t correctly reflect the statutory severance framework does not reduce the company’s actual obligations, it just leaves them undocumented until a termination makes the gap expensive.
What happens if a startup doesn’t have a signed IP Assignment Agreement?
Without one, code, designs, or other work product created by a founder, employee, or contractor can legally remain that individual’s property rather than the company’s. This gap is most commonly discovered during investor due diligence, at exactly the point where it’s most damaging and most difficult to fix quickly.
When does a startup actually need a Shareholders’ Agreement instead of just a Founders’ Agreement?
Once the company has shareholders beyond the founding team, an investor, an early employee holding equity, a Shareholders’ Agreement becomes necessary to govern that broader group. It works alongside the Founders’ Agreement, which continues to govern the original founding team’s specific arrangements, rather than replacing it.
This article is general information, not legal advice. Document requirements depend on your specific entity type and business. For advice on your startup, speak to a qualified lawyer.
Written by Prakhar Rai, Advocate, founder of My Legal Pal. Connect on LinkedIn.
Getting your founding documents right from the start is far cheaper than fixing gaps later, particularly once investors or a dispute are involved. Our team drafts and reviews the complete startup document stack for founders across Argentina. See our full range of legal services, or speak to our contract lawyers in Argentina about your specific documents.
Prakhar Rai is the founder of My Legal Pal and a licensed attorney. He started the practice after watching businesses that operate across borders get legal advice in fragments: a clause here, a reaction to a problem there, with no one looking at the whole picture or thinking a few steps ahead.
With more than a decade in business and corporate advisory, he came to a simple view. As companies started running on cross-border deals, digital platforms and overlapping regulation, they needed legal strategy built around how they actually work, not just documents drafted after the fact. My Legal Pal is built on that idea: foresight and clarity first, paperwork second.
He studied at La Martiniere College, holds an LL.B, and earned a Master of Business Laws from the National Law School of India University, Bangalore, specialising in corporate, banking, intellectual property, finance and securities law. That mix of academic grounding and hands-on advisory work shapes how he and the team approach every matter: commercially, not just technically.
