The U.S. Credit Building Guide.
From 0 to 700+.

1Why U.S. credit, and why it matters so much from abroad

Credit systems in most countries outside the U.S. keep you small. In Europe, for example, limits sit around €5,000-15,000, interest rates at 18-25% a year, and cashback at 0.5-1%. The U.S. system works on a different scale, with credit lines from $50,000 to $500,000+, 0% APR windows of 12-18 months, and rewards programs that let frequent spenders fly business class without paying for it.

The most important difference, though, is structural: your U.S. credit profile is tied to you as a person (through your ITIN), not to where you live. Your local credit history, on the other hand, often fades once you move away. With no registered address and no active accounts, it stops counting, and abroad it was never worth much anyway. If you move or plan to, you lose your creditworthiness. A U.S. credit profile travels with you and keeps growing, wherever you live.

2The foundation: LLC, EIN and ITIN

No foundation, no credit. The order matters:

• Form your LLC: your U.S. company. You can form it in any of the 50 states; for credit building, Florida has proven itself (0% state income tax, and banks know Florida LLCs well). With proper preparation, your LLC is formed in 7-10 days and fully ready, on average, after 21 days.
• Apply for your EIN: your LLC's tax ID with the IRS. You need it for every business account.
• Apply for your ITIN: your personal U.S. tax number (Individual Taxpayer Identification Number). As a non-U.S. person, it takes the place of an SSN and is your key to credit cards and a credit score. IRS processing time: typically 8-14 weeks.

3Getting started: fintech banking

With your LLC and EIN in place, you open your first U.S. accounts fully remotely at fintech banks such as Mercury or Relay. Add a payment setup (Stripe, for example) so your business can accept U.S. payments.

But see fintechs for what they are: your starting point, not your destination. Fintech accounts don't build a credit score. For that, you need credit cards and the real banks.

4Secured cards: your score begins

With your ITIN, you start your credit profile with secured cards, credit cards backed by a deposit. You can get them with no credit history, both personal and business.

Now strategy matters more than speed:

• Keep utilization low: ideally, use less than 10-30% of your limit.
• Pay every bill on time: payment history is the biggest factor in your score.
• Don't apply for too much at once: every hard inquiry costs you points in the short term.

Your first credit score appears about 90 days after you open your first accounts at branch banks (Chase, for example). From then on, it grows with every clean month.

5The real banks: why Miami is part of the plan

Chase, Bank of America and Wells Fargo are where the big credit lines come from. They open accounts for non-U.S. residents in person, at the branch. That's why a complete setup includes a trip to Miami.

This is where most people fail. Walk into a branch unprepared, with the wrong documents, missing proof or the wrong answers, and you fly home without an account. Preparation is everything: the right documents, the right bank, the right appointment, the right story.

6The shortcut: Amex Global Transfer

Already have an American Express from your home country, for example Germany or Austria? Then there's a fast track. With the Amex Global Transfer, you move your membership to the U.S. and get a U.S. Amex with no U.S. credit history, and even without an ITIN. Your "Member since" status carries over, and you reach Gold, Platinum and business cards much sooner. Typical limits are $10,000-15,000, often with 0% interest in the first year.

7Unsecured, Amex and premium: the payoff

After about 3 months of strategic use, you get your first unsecured cards, with no deposit and growing limits. In months 8-12, the premium doors open on both the personal and the business side: Amex Gold and Platinum, Chase Sapphire.

From here, the system works for you:

• Business credit lines that grow with your revenue, reaching six figures for our clients.
• 0% APR windows of 12-18 months as interest-free working capital.
• Sign-up bonuses and points that fly you business class when your spending runs through the right cards.

Your credit score climbs from 0 to 700+. That's creditworthiness tied to you, and it travels with you.

8The 5 most expensive mistakes

• 1. Knocking on the big banks' doors too early. Without an ITIN, a history and preparation, you get declined, and every decline stands in your way later.
• 2. Formal errors on the ITIN application. Each attempt costs 8-14 weeks.
• 3. Inconsistent details when opening accounts. This leads to closures before the account ever gets going.
• 4. Canceling your home-country Amex before the Global Transfer is complete. You give up the most valuable shortcut for good.
• 5. Ignoring utilization. A maxed-out limit drags your score down exactly when you need it.

Note: This guide is for general information only and does not constitute tax, legal or investment advice. Figures on limits, timelines and terms reflect our experience. Decisions rest with banks, card issuers and government agencies.