How to Build US Credit as a Foreigner from El Salvador

El Salvador founders launching US startups face the classic "invisible-credit" problem [1]. When you operate from San Salvador or Santa Ana, your robust local credit history managed by bureaus such as Equifax El Salvador (formerly Procrédito) or DICOM does not cross international borders [2]. US financial institutions, landlords, and commercial lenders view your Salvadoran credit profile as a blank slate. Because El Salvador utilizes the US Dollar as legal tender since 2001, founders frequently assume that their banking habits seamlessly translate to the US financial system. However, cross-border credit transparency remains limited, making intentional credit building an essential milestone for securing venture capital, corporate leases, and business loans without personal guarantees [1].

Why US credit matters

A US credit file changes what a US company can do. Without one, financing means cash collateral or a personal guarantee, corporate cards come with a deposit, and commercial leases ask for six months up front.

With one, the same company borrows at a normal rate. That is the whole difference, and it is why the sequence below is worth the months it takes.

No part of this is guaranteed. Credit decisions belong to lenders, and nobody — including us — can promise you a score or a limit.

The Amex Global Transfer route

American Express runs a programme — Global Transfer, sometimes called the Global Card Relationship — that lets an existing Amex cardholder apply for a US card using their established relationship with Amex rather than starting from nothing.

Your credit history does not transfer. This is the most common misunderstanding about the programme. What transfers is the relationship — Amex's own record of how you have handled your account with them. Your local bureau file, your repayment record with other lenders and your local credit score do not cross the border. Amex US underwrites you as a new customer who happens to be a known quantity to Amex.

That is still a considerable advantage over building a US file from zero. It is not the same as arriving with a credit history.

Four conditions apply, and all four must be met:

1. The card you already hold must be issued by American Express itself, not by a local bank operating under an American Express licence.
2. You must be the primary cardholder, not an additional or supplementary cardholder.
3. You must have held the card for at least three months.
4. The account must be open and in good standing when you apply.

Corporate cards are excluded separately from all four.

Condition one eliminates more applicants than the other three combined. In many markets American Express operates through Global Network Services, where a local bank licenses the Amex brand and issues its own cards under it. Those cards carry the Amex logo, but the account relationship belongs to the bank — so there is nothing to transfer. A local partnership is not an alternative route to eligibility; it is the thing that removes it.

How to check your own card: read the cardholder agreement, not the card. The agreement names the legal entity that issued it. If that name is a local bank, the card will not qualify. If it is an American Express entity, it may. If you cannot find the agreement, call the number on the back and ask which legal entity issued the card.

We maintain a country-by-country reference for this, including which markets are confirmed and which are not: Amex Global Transfer country eligibility [blocked]

Check before you rely on this: American Express sets these terms and can change them. Confirm current conditions with American Express directly.

The ITIN path

If you do not qualify for the American Express Global Transfer program, obtaining an Individual Taxpayer Identification Number (ITIN) from the Internal Revenue Service (IRS) is the foundational step for building US credit independently as a non-resident alien.

1. Form your US entity: Establish your US LLC or C-Corp and obtain your Employer Identification Number (EIN) from the IRS.
2. Prepare Form W-7: Complete IRS Form W-7 (Application for IRS Individual Taxpayer Identification Number) alongside your federal income tax return or under a valid exception category (such as claiming treaty benefits or owning a reporting US entity).
3. Certify identity documents: Gather certified copies of your Salvadoran DUI (Documento Único de Identidad) or valid passport issued by the Dirección General de Migración y Extranjería, certified directly by the issuing agency or an IRS-authorized Certifying Acceptance Agent (CAA).
4. Submit application: Mail your completed Form W-7, original or certified identity documents, and supporting entity paperwork to the IRS ITIN Operation in Austin, Texas, or submit them in person through a Certifying Acceptance Agent in San Salvador.
5. Receive ITIN and apply for credit: Once your ITIN is issued (typically taking 7 to 11 weeks), use your ITIN to apply for secured credit cards, open US business bank accounts, and establish tradelines with lenders that accept ITINs in lieu of a Social Security Number (SSN).

Nova Credit

Nova Credit serves as a premier cross-border credit bureau bridge that enables immigrants and foreign founders to share their home country credit history with US financial partners [4]. While Nova Credit officially integrates with credit bureaus across major corridors—including Australia, Brazil, Canada, Dominican Republic, India, Kenya, Mexico, Nigeria, Philippines, South Korea, United Kingdom, and Vietnam—its direct coverage for El Salvador is limited [4]. Salvadoran founders should check Nova Credit’s live partner network during onboarding; if direct bureau translation is unavailable, founders must rely on the ITIN sequence or Amex Global Transfer path [4].

Business credit: the faster lane

Building corporate credit allows your startup to borrow independently of your personal identity. To establish a strong business credit profile:

• Obtain an EIN: Secure your Employer Identification Number from the IRS immediately upon entity formation.
• Establish a D-U-N-S Number: Register your US business with Dun & Bradstreet (D&B) to activate your corporate credit file.
• Open Tier-1 Vendor Accounts: Open commercial accounts with vendors that report payment activity to business credit bureaus (such as D&B, Experian Business, and Equifax Business).
• Build the D&B Paydex Score: Pay your vendor invoices ahead of terms to establish a stellar Paydex score of 80 or higher, signaling high creditworthiness to commercial lenders and enterprise partners.

Recommended sequence

1. Form Entity & Get EIN: Incorporate your US entity and secure your EIN from the IRS.
2. Leverage Amex Global Transfer: Check eligibility and apply for a US American Express card using your existing foreign Amex relationship.
3. Apply for an ITIN: Submit Form W-7 with certified Salvadoran identification documents through an authorized CAA or the IRS.
4. Open US Business Banking: Use your EIN and ITIN to establish a US digital business bank account (such as Mercury or Relay Financial).
5. Establish Business Tradelines: Register for a D&B D-U-N-S number and open reporting vendor accounts to build corporate credit scores.

What Keystone Bridge does

We handle the US side for founders based outside the United States: entity formation, EIN, ITIN, US business banking access, and business credit.

The price of every stage is published on this site, so a first conversation is about whether we fit — not a pitch. If the answer is that you can do this yourself, we will tell you so.

References

[1] U.S. Small Business Administration. Credit Building for New Businesses and Foreign Founders. https://www.sba.gov/ [2] Equifax El Salvador. Credit Bureau Services and Consumer Reporting. https://www.equifax.com.sv/ [3] American Express. Global Transfer Program Eligibility and Guidelines. https://www.americanexpress.com/ [4] Nova Credit. Cross-Border Credit Bureau Partners and Supported Countries. https://www.novacredit.com/credit-passport

This guide is for informational purposes only and is not financial, tax, or legal advice. Consult a qualified adviser for your specific situation.