Most non-residents believe they need an SSN to use the US banking and credit system meaningfully. That's half true. You can't get an SSN without a US work authorization — but you can get an ITIN (Individual Taxpayer Identification Number), and an ITIN unlocks real US bank accounts, an Amex card, a US credit score, and eventually the premium tier cards (Platinum, Gold, even Centurion).
And none of this obligates you to pay US tax.
This article explains the exact setup: what an ITIN is, which banks work, how to get an Amex, and the timeline for building US credit as a non-resident.
ITIN vs SSN: The Distinction That Matters
- SSN (Social Security Number) — issued to US citizens, green card holders, and people with US work authorization. Tied to employment and US residency.
- ITIN (Individual Taxpayer Identification Number) — issued by the IRS to non-residents who need to file US taxes (e.g., they own a US LLC, have US real estate, have US-source income). Not tied to work.
An ITIN is a 9-digit number in the format 9XX-7X-XXXX. It's designed for tax filing but in practice is accepted by many banks and card issuers as an SSN substitute.
Who Needs / Can Get an ITIN
You can apply for an ITIN if you have a tax reason to file in the US, which includes:
- Owning a US LLC (even a disregarded entity)
- Owning US real estate
- Having US-source income
- Being a member of a US partnership
- Being a beneficiary of a US trust or estate
For most Leasum clients with a US LLC, the ITIN is justified by Form 5472 filing obligations (owning a foreign-owned SMLLC).
How to Get an ITIN
Option 1: Form W-7 + Certified Documents
Submit Form W-7 to the IRS with:
- Completed W-7
- A tax return or other IRS document justifying the need
- Certified copy of your passport (certified by the issuing authority or a certified acceptance agent)
Processing time: 6-12 weeks.
Option 2: Certified Acceptance Agent (CAA)
A CAA can verify your identity documents without requiring you to mail the originals, which is what most non-residents do.
- Visit a CAA in person (many in Europe, London, Dubai)
- They verify your passport on the spot
- They submit W-7 directly to the IRS
- Timeline: 4-8 weeks
This is the recommended path. Leasum handles this for our clients.
US Banks That Accept ITIN
Not all banks accept ITIN. The ones that do (for non-residents specifically):
Tier 1 — Online / Neobanks (Easiest)
- Mercury — does not require SSN or ITIN for LLC accounts; ideal for business banking
- Relay — similar to Mercury, non-resident friendly
- Wise Business — accepts non-residents, great multi-currency
These are for business accounts (LLC owners). Personal accounts are a separate question.
Tier 2 — Traditional Banks (Personal Accounts)
- Chase — accepts ITIN in person at select branches (requires US address, even if just a friend's)
- Bank of America — similar, accepts ITIN at some branches
- Wells Fargo — yes, with ITIN
- Capital One — yes, especially Capital One 360
- HSBC (US) — strong for international clients; Premier accounts accessible
Tier 3 — Community / Credit Unions
- Alliant Credit Union
- Self-Help FCU
Often more ITIN-friendly than big banks.
How to Build US Credit With an ITIN
Step 1 — Get a Secured Credit Card
Most major US banks offer secured credit cards that accept ITIN:
- Capital One Platinum Secured — $49 deposit, reports to all 3 bureaus
- Discover it Secured — $200 deposit, excellent for building credit
- Wells Fargo Secured — $300-10,000 deposit
You fund a deposit (say $500) and get a card with that limit. Use it like a regular card. Payments build your credit history.
Timeline: 3-6 months to establish initial credit score.
Step 2 — Graduate to Unsecured Starter Cards
After 6-12 months of on-time payments:
- Capital One QuicksilverOne — cashback card, unsecured
- Discover it — cashback, often approved for ITIN holders with some history
- Petal 2 — designed for thin credit files
Your credit score should reach the 650-700 range here.
Step 3 — American Express
Amex is ITIN-friendly. Unlike Visa/Mastercard networks that go through each issuer, Amex issues its own cards and has a specific process for non-US-residents.
Two paths to Amex:
Path A — US credit history first After 12+ months of US credit with other issuers, apply for:
- Amex Green — $150/year, accessible entry
- Amex Gold — $325/year, great for travel/dining
- Amex Delta cards — airline-specific
Path B — International Amex Transfer If you hold an Amex card in another country (UK, France, Germany, UAE), you can request an International Card Transfer after 12 months of history. Your foreign Amex history transfers, letting you apply for US Amex with no domestic credit file.
This is by far the fastest path if you already have an Amex elsewhere.
Step 4 — Premium and Ultra-Premium Cards
Once you have a US credit score 750+ and an Amex relationship:
- Amex Platinum — $695/year, top travel rewards, lounges, credits
- Amex Business Platinum — if you have a US LLC, even better rewards, $695/year
- Chase Sapphire Reserve — $550/year, premium travel
- Amex Centurion (Black Card) — invitation only, usually after 1+ years of high spend on Platinum; not publicly advertised
Centurion is the endgame — it's invitation-only, requires typically $250k+/year in spend on an existing Amex, and comes with a $10k initiation + $5k/year fee. But the real value is the concierge and access tier, not the card itself.
The Tax Question: Does This Trigger US Tax?
No, having an ITIN and US bank accounts does not make you a US tax resident.
You're a US tax resident if:
- You're a US citizen or green card holder, OR
- You pass the Substantial Presence Test (roughly: 183+ days in the US averaged over 3 years)
Holding an ITIN, a US bank account, or even a US LLC doesn't trigger tax residency. What triggers US tax obligations is US-source income or substantial presence.
Most non-resident LLC owners serving non-US clients:
- Have ITIN ✓
- File Form 5472 annually (zero tax due) ✓
- Have zero US tax owed ✓
- Build US credit ✓
- Use Amex Platinum ✓
The Full Setup
For a European founder wanting full US banking integration:
- Form US LLC (Wyoming, Delaware, or New Mexico)
- Get EIN (for the LLC)
- Apply for ITIN via CAA (personal)
- Open Mercury or Relay (business account, no ITIN even needed here)
- Visit US, open Chase/BoA personal account with ITIN (need a US address — can be a friend's or a mail forwarding service)
- Get secured card (Capital One Secured)
- 6-12 months: transition to unsecured starter card
- 12+ months: apply for Amex (or transfer from your home-country Amex)
- 24+ months: apply for Amex Platinum
- Eventually: Centurion invitation if spend justifies
Total timeline to full premium access: 18-30 months.
Pitfalls
1. Using a False US Address
If you don't actually have a US address, using one anyway (friend's, fake) creates legal risk. Use a legitimate mail forwarding service (Anytime Mailbox, Earth Class Mail) with a real US street address.
2. Not Filing Form 5472
If the reason you got your ITIN was owning a US LLC, make sure you file 5472 annually. Losing your ITIN's justification can cause complications.
3. Assuming Any Bank Accepts ITIN
Smaller or newer banks often refuse. Call ahead or use the bank list above.
4. Mixing Personal and LLC Banking
Keep your ITIN personal account separate from your LLC's business account. Mixing funds pierces the liability shield.
5. Going for Premium Cards Too Early
Applying for Amex Platinum in month 3 gets declined, dings your credit. Build methodically.
Next Steps
The ITIN + US banking + Amex stack is one of the most underutilized advantages available to non-resident LLC owners. It takes 12-24 months to reach premium tier, but once established, it gives you access to world-class credit products while remaining a non-US person with zero US tax.
At Leasum, we handle ITIN applications as part of our US LLC setup. We also help clients navigate the first 6 months of US banking — which banks to approach, which cards to apply for first, and how to build credit fast. If you're already running a US LLC and want to unlock the banking/credit side, this is worth a conversation.
