How to Build US Credit as a Foreigner from New Zealand

New Zealand founders expanding into the United States often encounter the "invisible-credit" problem. Despite maintaining an excellent domestic financial track record monitored by New Zealand credit reporting bureaus such as Centrix, Equifax New Zealand, and illion, your established Kiwi credit score does not cross international borders. When applying for US credit cards, commercial loans, or office leases, US financial institutions view you as having a blank slate. Building US credit is an essential milestone for securing favorable financing terms and establishing corporate credibility without relying on personal New Zealand guarantees.

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

For founders who do not qualify for the Amex Global Transfer program or require a broader US financial identity, obtaining an Individual Taxpayer Identification Number (ITIN) from the Internal Revenue Service (IRS) is the standard operational pathway.

1. Form a US entity: Establish your US LLC or C-Corp and obtain your Federal Employer Identification Number (EIN).
2. Prepare Form W-7: Complete IRS Form W-7 (Application for IRS Individual Taxpayer Identification Number) alongside your US tax return or under a valid exception category.
3. Certify identification documents: Gather certified copies of your New Zealand passport issued by the Department of Internal Affairs or have your documents certified by an IRS-authorized Certifying Acceptance Agent (CAA) based in New Zealand or the US.
4. Submit application package: Mail Form W-7, identification documents, and supporting entity paperwork to the IRS ITIN Operation in Austin, Texas, or submit them through an authorized CAA.
5. Receive ITIN assignment: Once processed, the IRS issues your ITIN, enabling you to open US personal bank accounts, apply for secured credit cards, and report tax obligations.

Nova Credit

Nova Credit serves as a cross-border credit bureau bridge that allows foreign nationals to share their home-country credit history with participating US financial institutions. However, Nova Credit's coverage varies by country. While Nova Credit actively integrates with credit bureaus in nations like Australia, the UK, Canada, and India, its direct consumer bureau coverage for New Zealand is currently limited or subject to periodic network updates. Founders should verify Nova Credit's live partner network during their application process, and if New Zealand is not supported at the time of application, rely instead on the Amex Global Transfer method or secured credit card pathways.

Business credit: the faster lane

Building business credit independent of your personal SSN or ITIN is one of the most effective strategies for foreign founders. By securing an EIN for your US company, you can establish trade lines with commercial vendors, suppliers, and business credit card issuers that report directly to major business credit bureaus such as Dun & Bradstreet (D&B), Experian Business, and Equifax Business.

To build a strong commercial profile, apply for a D&B D-U-N-S Number, open commercial accounts with vendors that report payment terms (such as net-30 terms), and consistently pay invoices ahead of schedule to achieve a high D&B PAYDEX score. This establishes corporate creditworthiness, enabling your New Zealand-founded US entity to secure high-limit business financing on its own merits.

Recommended sequence

1. Incorporate your US entity: Form your Delaware C-Corp or US LLC and obtain your EIN from the IRS.
2. Leverage Amex Global Transfer: Apply for a US Amex card using your existing New Zealand Amex history and your new US address.
3. Secure an ITIN or SSN: Apply for an ITIN via Form W-7 if you plan to open individual US bank accounts or apply for traditional consumer credit cards.
4. Open a US business bank account: Utilize digital cross-border banking platforms (such as Mercury or Silicon Valley Bank) that support international founders with an EIN and passport.
5. Establish trade and vendor lines: Open net-30 business accounts and corporate credit cards that report to Dun & Bradstreet to build independent corporate credit.

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