El Salvador Cross-Border Tax Guide 2026

Overview — Cross-Border Taxation

El Salvador's cross-border tax rules are governed by the Codigo Tributario (Tax Code), the Ley de Impuesto sobre la Renta, and the Ley de Fomento de la Competencia (Transfer Pricing Law). The Direccion General de Impuestos Internos (DGII) administers international tax compliance. El Salvador is a member of the OECD's Inclusive Framework on BEPS (Base Erosion and Profit Shifting) and has committed to implementing the minimum standards, including country-by-country reporting, exchange of tax rulings, and the multilateral instrument (MLI). The territorial tax system means that Salvadoran residents are not taxed on foreign income, which simplifies cross-border tax planning for Salvadoran-based operations.

Transfer Pricing — OECD Guidelines

El Salvador's transfer pricing rules (introduced in 2014) follow the OECD Transfer Pricing Guidelines. Related-party transactions must be conducted at arm's length. Related parties include companies under common control, parent-subsidiary relationships, and entities with significant influence. Documentation requirements include transfer pricing studies and documentation files. Acceptable methods include the Comparable Uncontrolled Price (CUP) method, Cost Plus method, Resale Price method, Transactional Net Margin Method (TNMM), and Profit Split method. Country-by-country reporting is required for multinational groups with consolidated revenue exceeding USD 750 million. Penalties for non-compliance range from 20% to 100% of the tax adjustment plus interest. Advance Pricing Agreements (APAs) are available for qualifying taxpayers.

Thin Capitalisation — 3:1 Debt-to-Equity

El Salvador's thin capitalisation rules limit interest deductions on related-party debt. The maximum allowable debt-to-equity ratio is 3:1. Interest on debt exceeding this ratio is disallowed as a deduction and may be recharacterised as a dividend for withholding tax purposes. The rules apply to all related-party debt, including loans from foreign parent companies, sister companies, and guaranteed third-party debt. Certain long-term financing from regulated financial institutions may be exempt. The DGII may also apply general anti-avoidance rules where debt arrangements lack commercial substance. The thin capitalisation rules apply to both resident companies and branches of foreign companies operating in El Salvador.

Withholding Taxes to Non-Residents

Payments to non-residents from Salvadoran-source income are subject to withholding tax at the following standard rates (treaty rates may apply):

• Dividends — 5% (final tax; reduced to 0% under certain conditions for parent companies)
• Interest — 10% (reduced to 5-10% under DTTs)
• Royalties — 10-20% depending on the type of intellectual property
• Technical service fees — 10-20% if paid to non-resident without PE
• Branch profit remittance — 5% on profits remitted to head office
• Rental income — 5% withholding on gross rent paid to non-residents

The person making the payment must withhold the tax and remit it to the DGII within 10 days. A withholding tax certificate must be issued to the non-resident. Treaty relief requires the non-resident to provide a Certificate of Tax Residency and submit a treaty relief application through the DGII portal.

Double Tax Treaties (DTTs)

El Salvador has a growing network of double tax treaties. As of 2026, El Salvador has signed comprehensive DTTs with:

• Spain — 0% dividend (substantial holding), 5% (other), 5% interest
• Mexico — 0% dividend (substantial holding), 10% (other), 10% interest
• Chile — 5% dividend, 10% interest, 10% royalties
• Guatemala — 5% dividend, 10% interest
• Honduras — 5% dividend, 10% interest
• Costa Rica — 5% dividend, 10% interest
• Nicaragua — 5% dividend, 10% interest
• Panama — 5% dividend, 10% interest
• Dominican Republic — 5% dividend, 10% interest

Treaties generally follow the OECD Model Convention and reduce withholding tax rates on dividends, interest, and royalties. To claim treaty benefits, the non-resident must obtain a Certificate of Tax Residency from their home country and submit a treaty relief form to the DGII. El Salvador also has tax information exchange agreements (TIEAs) with several countries and is a signatory to the Multilateral Convention on Mutual Administrative Assistance in Tax Matters.

Foreign Tax Credits & Territorial System

Because El Salvador operates a territorial tax system, Salvadoran residents are not taxed on foreign income. Therefore, there is generally no need for foreign tax credits. However, if a Salvadoran resident has foreign-source income that is also taxed in El Salvador (which should not happen under the territorial system), foreign tax credits may be available under applicable treaties. For non-residents investing in El Salvador, treaty relief reduces the Salvadoran withholding tax on dividends, interest, and royalties. The territorial system is a significant advantage for multinational groups considering El Salvador as a holding company jurisdiction, as dividends received from foreign subsidiaries are exempt from Salvadoran tax.

FAQs

Do I need to register for tax in El Salvador as a non-resident investor?

Non-residents earning Salvadoran-source income subject to final withholding tax (dividends, interest) generally do not need to register. However, a non-resident with a permanent establishment in El Salvador must register and file corporate tax returns.

How do I claim treaty relief on withholding tax?

The non-resident must submit a Certificate of Tax Residency from their home country and a treaty relief application (Form TR-1) to the DGII. The DGII issues an approval letter which is provided to the Salvadoran payer, who may then apply the reduced treaty rate.

Does El Salvador have CFC rules?

El Salvador does not currently have controlled foreign company (CFC) rules. However, as a member of the OECD Inclusive Framework, it may adopt CFC rules in the future as part of BEPS implementation.

Disclaimer

This guide provides general information about Salvadoran cross-border taxation for the 2026 tax year. Tax laws and treaty provisions may change. Always consult with a qualified Salvadoran international tax advisor or the Direccion General de Impuestos Internos for advice specific to your situation. InvestmentKit does not provide tax advice.