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LISR Reform Art. 3: El Salvador Adopts Territorial Income System

By Mariela Hidalgo·5 min read

A Structural Change in How El Salvador Taxes Income

The Legislative Assembly approved a reform to Article 3 of the Income Tax Law (LISR) that changes the rules for companies with international operations: El Salvador officially adopts a territorial income system.

What does that mean in simple terms? Starting with this reform, only income generated within Salvadoran territory is subject to Income Tax. Income your company earns from activities carried out abroad is exempt from ISR. It's a fundamental change from the previous system, where the tax base could include foreign-source income under certain circumstances.

This reform aligns El Salvador with other countries in the region that already operate under territorial systems, and responds to a dual objective: attracting foreign investment by offering more competitive tax treatment, and encouraging the internationalization of local businesses by not penalizing income generated outside the country.

Who Benefits and How the Tax Equation Changes

The most direct benefit is for companies that provide services to clients abroad. If you're a software developer selling licenses or services to companies in the United States, Europe, or any other market, the income generated from those services could be ISR-exempt. If your consulting firm serves international clients, the same applies. If you export products and the income is generated outside the territory, the exemption applies.

To put the impact in perspective: the ISR rate for legal entities in El Salvador is 30%. If a company generates $100,000 in income from services rendered abroad and that income qualifies as extraterritorial, the savings are $30,000 in taxes. That's the kind of difference that can change a company's financial structure.

But there's a point you can't take lightly: the burden of proof falls on you. It's not enough to say your income is from a foreign source. You need documentation that supports it unequivocally. Contracts specifying that the service is rendered abroad, invoices clearly identifying the foreign client and the nature of the transaction, evidence that the activity was carried out outside El Salvador. Without that documentation, the exemption won't hold up in a DGII audit.

It's also important to understand what the reform does not do. It doesn't eliminate ISR for all operations. Income generated within El Salvador remains taxed as normal. If your company operates exclusively in the local market, this reform doesn't change your tax situation. The benefit is designed specifically for extraterritorial source income.

Steps to Properly Take Advantage of This Regime

  1. Classify your income between territorial and extraterritorial. This is the fundamental exercise. Review with your accountant each income source in your company and determine which ones are generated within Salvadoran territory and which come from activities carried out abroad. The classification must be rigorous, because it's the foundation for everything that follows: if you classify incorrectly, you either overpay taxes or expose yourself to a tax contingency.

  2. Implement a robust documentation system. Every income item you declare as extraterritorial needs documentary support. Establish a procedure for filing contracts with foreign clients, service export invoices, evidence of service rendered outside the country (emails, reports, deliverables), and proof of payment from foreign accounts. This archive must be organized and accessible, because in an audit it's the first thing the DGII will request.

  3. Evaluate whether your business structure is the most efficient. The territorial system may make certain corporate arrangements more or less advantageous. If your company has both local and international operations, it may make sense to separate business lines, establish specific billing centers, or reorganize contracts. This isn't about evasion but legitimate tax planning: structuring your operations in a way that maximizes benefits within the legal framework.

  4. Prepare for the first filing under the new system. The income tax return for fiscal year 2024, filed in April 2025, will be the first under the territorial regime. Don't wait until March to prepare. Make sure your accounting for the entire year correctly reflects the territorial classification of income and that supporting documentation is complete before reaching the fiscal year-end.

Dates That Mark the Transition

The reform to Article 3 of the LISR was approved in March 2024. Fiscal year 2024 is the first year the territorial system applies, meaning all operations conducted since the reform took effect must be recorded under the new rules.

The first income tax return under the territorial system is filed in April 2025. It's a critical date because it establishes the precedent for how your company applies the reform. The criteria you use to classify income and the documentation you present in that first filing will be the reference against which the DGII evaluates your compliance in future years.

A Real Opportunity for Companies with an International Vision

The territorial income system is one of the most significant tax changes in El Salvador's recent history. For companies that already export services or products, it's an immediate and significant tax savings. For those considering internationalization, it removes a barrier that previously discouraged growth into foreign markets.

But the benefit only materializes if you apply it correctly. Misclassified income, insufficient documentation, or a poorly designed business structure can turn an opportunity into a tax problem.

If you want to evaluate how the territorial reform benefits your company, need help classifying your income, or want to structure your operations most efficiently under the new regime, at Contabilidad Hidalgo we can guide you. We'll help you turn this change into a real and sustainable benefit for your business.


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