El Salvador TIN — NIT, NRC & DUI Guide (2025)
Número de Identificación Tributaria (NIT)
The NIT is El Salvador's primary tax identification number, administered by the Ministerio de Hacienda's Dirección General de Impuestos Internos (DGII). Every taxpayer — individuals, companies, and non-resident entities with local economic activity — must hold a NIT before conducting any taxable transaction.
NIT Format
The NIT contains 14 digits structured as four hyphenated segments:
xxxx-xxxxxx-xxx-x
Example: 0614-241287-102-5
| Segment | Length | Meaning |
|---|---|---|
| First | 4 digits | Municipality code of birth (individuals) or registration location (entities). NITs for Salvadoran-born individuals start with 0 or 1; foreign-born individuals whose NITs were issued under the foreign-domicile category start with 9. |
| Second | 6 digits | Date of birth (natural persons) or incorporation date (legal entities) in DDMMYY format. |
| Third | 3 digits | Sequential running number assigned at registration. |
| Fourth | 1 digit | Verification (check) digit for system validation. |
The check digit allows ERP systems and the DGII transmission API to detect transposition errors before document submission.
NIT Registration
Natural persons register online via the Ministerio de Hacienda's "Inscripción, Modificación o Reposición de NIT Digital Persona Natural" service, or in person at any DGII office using Form F-210. Required documents include:
- National DUI (Salvadoran citizens) or passport plus residence card (foreign nationals domiciled in El Salvador)
- For foreigners not domiciled in El Salvador: apostilled identity document translated into Spanish
- Proof of fiscal address (utility bill or lease)
- Documentation of economic activity or a written declaration of intent to commence operations
Foreign nationals who are not domiciled in El Salvador must appear in person and cannot complete digital NIT registration online.
NIT and DUI Unification (2021–2022)
Legislative Decree No. 203, published in the Official Gazette on December 9, 2021, merged the NIT with the DUI for Salvadoran citizens of legal age. By June 30, 2022, the 14-digit NIT card was phased out for nationals — Salvadoran citizens now use their 8-digit DUI number (xxxxxxxx-x format) as their tax identifier across all government systems, invoices, and DTE (Documento Tributario Electrónico) transmissions.
Foreign nationals and legal entities are unaffected by the unification and continue to use the 14-digit NIT.
Número de Registro de Contribuyente (NRC)
The NRC (also called the IVA contributor number) is a separate registration issued by DGII to taxpayers who are required to collect and remit IVA (El Salvador's 13% value-added tax). It is not the same as the NIT.
NRC Format
The NRC is an 8-digit sequential number with no hyphens or internal structure, for example: 01234567. Unlike the NIT, the NRC carries no encoded geographic or date information — it is a plain registry sequence number.
When Is NRC Registration Required?
A natural person must register for NRC when either threshold under Article 28 of the IVA Law is met:
- Income threshold: Monthly taxable income from economic activity reaches approximately USD $477
- Asset threshold: Initial business assets reach approximately USD $2,286 (corresponding to 25 times the monthly minimum wage under Article 437 of the Commerce Code)
Legal entities (sociedades) must register for NRC at incorporation, regardless of turnover. Non-resident companies supplying goods or services in El Salvador have no threshold and must register from the first taxable transaction.
Operating above these thresholds without an NRC and issuing plain facturas instead of Comprobantes de Crédito Fiscal (CCF) means your B2B customers cannot claim IVA credits — a frequent cause of invoice rejection in cross-border Central American trade.
DTE (Documento Tributario Electrónico) — Mandatory e-Invoicing
El Salvador mandates electronic invoicing through the DTE system, administered by the DGII. The rollout has followed a phased approach by taxpayer size:
| Taxpayer Category | Annual Income | DTE Obligation Start |
|---|---|---|
| Large taxpayers (Grandes Contribuyentes) | Above USD $1,000,000 | July 2023 |
| Medium taxpayers | USD $500,000 – $1,000,000 | 2024–2025 (phased) |
| Small taxpayers | Below USD $500,000 | Upon individual notification letter from DGII |
From January 1, 2025, businesses already under the DTE obligation must issue only electronic tickets (facturas electrónicas) to final consumers; paper CCF equivalents are no longer accepted. As of February 2026, DGII extended the invalidation window to 90 days, allowing correction of errors in names, NIT numbers, descriptions, and amounts — the issuer must generate a new DTE linked to the original.
The DTE API validates against published catalog versions (municipality codes, product codes, establishment codes). Using an outdated catalog version causes automatic document rejection.
Related Resources
- Worldwide directory of VAT and tax ID names
- Global e-invoicing status tracker
- VAT registration thresholds worldwide
- Guatemala TIN (NIT) guide — similar NIT-to-national-ID unification pattern
- Nicaragua RUC guide — comparable withholding and IVA contributor structure
- Panama TIN guide
Frequently Asked Questions
Since El Salvador merged the NIT with the DUI for citizens, which ID do foreign nationals enter on DTE forms?
Since Legislative Decree No. 203 (December 2021), Salvadoran citizens use their 8-digit DUI number as their tax identifier — the 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 14-digit NIT from the Ministerio de Hacienda. On DTE transmissions, foreign individuals enter their NIT in the tax-ID field; Salvadoran nationals enter their DUI number. Mixing these identifiers — for example, entering a foreign passport number instead of a valid NIT — causes the DTE to be rejected by the DGII 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 the foreign vendor reclaim it?
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 low-tax or zero-tax jurisdictions. This withholding is a final tax — the foreign vendor cannot file a Salvadoran income tax return to reclaim it — so cross-border service contracts with Salvadoran clients should gross up the invoiced fee accordingly. The Salvadoran payer remits withheld amounts to Hacienda referencing the foreign vendor's NIT or equivalent foreign tax identifier. [4]
When must a sole trader or freelancer register for NRC on top of their NIT?
The NIT is mandatory from the moment of any economic activity; the NRC is the separate IVA contributor registration required before a business can issue Comprobantes de Crédito Fiscal (CCF). [5] A natural person must obtain an NRC when monthly income from economic activity reaches approximately USD $477, or when initial business assets reach the USD $2,286 balance-sheet threshold. Operating above these thresholds without an NRC means your B2B buyers cannot claim IVA tax credits — a common cause of invoice rejection in Central American trade. Penalties for failing to register range from two to three monthly minimum wages under the Código Tributario. [6]
Does the DTE e-invoicing obligation apply immediately to all businesses, and what happens when a DTE is rejected?
The DGII has implemented DTE in waves: large taxpayers (over USD $1,000,000/year) since July 2023, medium taxpayers through 2024–2025, and small taxpayers upon individual activation notice. [7] When a DTE is rejected, the system returns an error code identifying the mismatch — common causes include an outdated catalog version or a missing/invalid NIT in the recipient field. As of February 2026, DGII extended the correction window to 90 days: the issuer generates a corrected DTE linked to the rejected document. Sales that remain uninvoiced beyond the correction window are treated as undeclared income for IVA and income tax purposes. [8]
Does El Salvador's Digital Assets Law (LEAD) exempt Bitcoin gains from income tax for foreign investors?
El Salvador's Ley de Emisión de Activos Digitales (LEAD, 2023) exempts capital gains and ordinary income from the transfer of registered digital assets from income tax, IVA, and municipal taxes for both local and foreign investors. [9] The exemption is not automatic — it applies only 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 through a CNAD-licensed provider. The original Ley Bitcoin (2021) did not grant this exemption; it only made Bitcoin legal tender. The 2025 IMF agreement removed mandatory merchant acceptance of Bitcoin but left the LEAD tax exemption intact. [10]
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