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El Salvador TIN number guide

Número de Identificación Tributaria(NIT)​

NIT contains 14 digits in the format xxxx-xxxxxx-xxx-x (e.g., 0614-241287-102-5) represents Número de Identificación Tributaria(NIT). The initial segment (4 digits) signifies the municipality code, while the subsequent 6 digits indicate the establishment date for organizations (or the birth date for individuals). The following 3-digit section functions as a running number, and the last digit serves as a verification digit.

Frequently Asked Questions​

Since El Salvador merged NIT with DUI for individuals, what ID do foreign nationals use on invoices and DTE forms?​

Since Legislative Decree No. 203 (December 2021), Salvadoran citizens of legal age use their DUI number as their tax identifier — the old 14-digit NIT card was phased out for nationals by June 30, 2022. [1] Foreign nationals who lack a DUI must still obtain and present a separate NIT issued by the Ministerio de Hacienda. On DTE (Documento Tributario Electrónico) transmissions, foreign individuals enter their NIT in the tax-ID field; Salvadoran nationals enter their DUI number directly. Mixing up these identifiers — e.g., entering a foreign passport number instead of a valid NIT — causes the DTE to be rejected by the Hacienda transmission system and the document is treated as if never issued. [2]

Why do Salvadoran businesses withhold 20% from payments to foreign service providers, and can it be recovered?​

Under Article 158 of El Salvador's Código Tributario, any domiciled entity that pays or credits income to a non-domiciled individual or company must withhold 20% as a definitive final-payment income tax. [3] The rate rises to 25% for entities resident in recognized tax havens. This withholding is a final tax — the foreign provider cannot file a Salvadoran income tax return to reclaim the amount — so contracts with Salvadoran clients should gross up the fee accordingly. The Salvadoran payer remits the withheld amount to Hacienda using the foreign vendor's NIT (or equivalent foreign tax ID) as the reference. If no NIT exists for the foreign entity, the payer must document the foreign registration number used. [4]

When must a sole trader or freelancer register for NRC (IVA contributor status) on top of their NIT?​

The NIT is mandatory for all taxpayers from the moment of any economic activity; the NRC is the separate IVA contributor registration required before issuing Comprobantes de Crédito Fiscal (CCF). [5] According to Ministerio de Hacienda guidelines, a natural person must obtain an NRC when their monthly income from economic activity reaches approximately $477 USD, or when their initial asset base meets the $2,286 USD balance-sheet threshold under Article 437 of the Commerce Code. Operating above these thresholds without an NRC and issuing plain facturas instead of CCFs means your B2B buyers cannot claim IVA tax credits — a common cause of invoice rejection in cross-border Central American trade. [6]

Does the DTE mandatory e-invoicing rollout apply immediately to all businesses, and what happens if a DTE is rejected due to an outdated catalog?​

The Ministerio de Hacienda has implemented DTE in waves: large taxpayers have been obligated since July 2023, medium taxpayers (income $500,000–$1,000,000/year) were phased in through 2024–2025, and small taxpayers receive individual notification letters specifying their activation date. [7] A critical operational trap: the Hacienda transmission API validates DTE documents against published catalog versions (product codes, municipality codes, establishment codes). Using a catalog version that predates updates published by Hacienda causes automatic rejection. From October 9, 2025, Hacienda's API enforces strict catalog version compliance and rejected documents must be corrected and retransmitted within 24 hours of the rejection notification, or the sale is treated as uninvoiced for tax purposes. [8]

Does El Salvador's 2023 Digital Assets Law (LEAD) exempt Bitcoin gains from income tax, and does this apply to foreign investors?​

El Salvador's Ley de Emisión de Activos Digitales (LEAD, 2023) created a formal exemption: capital gains and ordinary income derived from the transfer of digital assets registered under the law are exempt from income tax, VAT, and municipal taxes for both local and foreign investors. [9] However, the exemption is not automatic — it applies to entities and investors registered with the Comisión Nacional de Activos Digitales (CNAD), and foreign investors must hold at least 3 BTC recorded as invested in El Salvador through a CNAD-licensed provider. The original Ley Bitcoin (2021) did not grant this exemption; it merely made Bitcoin legal tender and required IVA conversion at the USD equivalent rate. The 2025 IMF agreement removed mandatory merchant acceptance of Bitcoin but left the LEAD tax exemption intact. [10]

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