Mercury Bank Account Guide — Opening a US Business Bank Account
Complete walkthrough for opening a Mercury business bank account as a foreign LLC owner. Covers requirements, application steps, document preparation, and approval tips.
Key Takeaways
- Mercury is free to open — no minimum balance, no monthly fees, no annual fees
- No SSN or ITIN required — supports foreign-owned US companies
- $250 deposit bonus when depositing $10,000 within 90 days (requires referral link)
- Checking + Savings accounts (savings yields 1-2% APY)
- Integrates with Stripe, PayPal, Amazon, Shopify, QuickBooks, Gusto
Why Mercury?
Mercury is a free business banking platform designed for startups and online businesses. It is one of the few US banks that actively supports foreign-owned US companies without requiring an SSN or ITIN. The platform offers an excellent UI/UX, FDIC insurance through partner banks, and seamless integrations with the tools you already use.
Key Benefits
- No minimum balance requirement
- No monthly or annual fees
- Both Checking and Savings accounts
- Savings account: 1–2% APY
- Supports non-US residents with US LLCs
- FDIC insured through partner banks (up to $5M aggregated)
Integrations
- Stripe, PayPal, Shopify, Amazon
- QuickBooks, Gusto
Transfer Fees
- ACH transfers: free
- Domestic wire: $5 per transfer
- International wire: $20 per transfer
Business Types Mercury Will Not Accept
Mercury explicitly bans these categories. Even if every other piece of your application is perfect, mentioning one of these in your business description will trigger immediate rejection or account closure:
- Adult content / pornography
- Pure cryptocurrency business (exchanges, mining, OTC — passively holding is fine)
- Cannabis / regulated substances
- Gambling / betting / high-risk financial derivatives
- Firearms / weapons
2026 Audit Tightening — What Changed
Starting late 2025, Mercury significantly raised the bar on foreign-owned LLC applications. What we've observed:
- Business legitimacy is scrutinized hard. Your website must clearly show what you sell and to whom. A blank landing page or vague description triggers automatic rejection.
- Address proof preferences shifted. The Hong Kong bank statement that worked best in 2024 now has lower approval rates than a China Merchants Bank (招商银行) credit card statement for China-based applicants. Mercury's reviewers see the CMB format frequently and recognize it.
- Principal address must include unit/door number. Generic addresses like "XYZ Community" or "XYZ Tower" get auto-flagged as "public address" and rejected. Include the exact unit number that matches your statement.
- AI pre-check followed by human review. Mercury's system automatically matches your submitted name and address against uploaded documents. A mismatch doesn't auto-fail you, but it opens a 1–2 day human review where you'll need to explain the Chinese-to-English mapping.
Prerequisites
Before you start the Mercury application, make sure you have the following documents ready:
- Certificate of Formation — from your state of formation
- EIN confirmation — SS-4 approval letter or 147C letter from the IRS
- Address proof — matching your LLC formation address (water/electric bill, credit card statement, or HK bank statement)
- Passport — valid, unexpired
Tip: If you registered your LLC via Stripe Atlas, you can access your Certificate of Formation and EIN letter directly from your Atlas dashboard.
Important: Choose the Right Entry Point
Warning:If you registered your LLC via Stripe Atlas, do NOT use the regular Mercury signup link. Instead, go through your Atlas dashboard: Bank → Mercury → Apply. You will still receive the $250 deposit bonus through this path.
If you did NOT register via Stripe Atlas, you must use a referral or invitation link to qualify for the $250 deposit bonus. The bonus requires depositing $10,000 within 90 days of opening the account.
Application Process — Step by Step
Step 1: Create Account
Sign up on Mercury and choose a display name. This is just a nickname for your account — it is not legally binding and can be changed later.
Step 2: Select Interests
Mercury will ask about your interests. This does not affect your approval — pick anything that seems relevant.
Step 3: Company Information
Enter your LLC name, EIN, state of formation, and a brief description of your business activities.
Step 4: Addresses
You will need to provide two addresses:
- Registered agent address — from your formation service
- Principal business address — your actual office or home address (must match your address proof document)
Important: These two addresses are different. Do not confuse your registered agent address with your principal business address.
Include the unit/door number. Mercury auto-rejects addresses that only resolve to a building or neighborhood. The correct format is: Unit 1502, Building 3, [Compound name in pinyin], [Street], [District], [City], [Province] [Postcode], China. The unit number on your English application must match the unit number on the Chinese statement you upload.
Step 5: Upload Documents
- Certificate of Formation
- SS-4 approval letter or 147C letter (EIN proof)
Both documents are available from your Stripe Atlas dashboard if applicable.
Step 6: Business Activity (decides ~70% of your approval odds)
Mercury will ask about your first deposit source, revenue timeline, and a free-text business description. The description is the single most important free-text field — Mercury cross-checks it against your website, industry selection, and supporting documents.
How to write a description that passes:
- State concretely what you sell, to whom, and how you charge
- Position the business as SaaS / developer tools / database / backend service / data tool (similar to Neon, Supabase, or other recognized infra services)
- Avoid empty terms like "software", "consulting", "online business"
- Avoid anything that could be misread as grey-market, high-risk lead-gen, financial arbitrage, crypto trading, gambling
Examples that work:
- "We sell a SaaS analytics dashboard to Shopify merchants on monthly subscription, billed via Stripe."
- "We provide developer infrastructure (database + backend services) similar to Neon and Supabase, sold to indie developers on monthly subscription."
- "We offer a B2B data tool that helps SaaS founders track product metrics. Customers pay $99/month via Stripe."
Examples that fail:
- "Technology consulting and digital services" — too vague
- "Online business" — doesn't say anything
- "Helping clients with cryptocurrency / forex / trading" — instant rejection
Step 7: Address Verification (the toughest gate)
2026 preference order (by current actual approval rate, for China-based applicants):
- ⭐ China Merchants Bank (招商银行) credit card statement — currently the highest approval rate. Download the English version directly from the CMB app.
- Hong Kong bank statement (ZA Bank / HSBC / Mox) — still works but visibly lower approval rate than in 2024.
- Notarized Chinese-to-English driver's license translation — no longer first-choice.
- Utility bill plus a translation-company English certified translation — fallback.
If you have a CMB credit card, use this month's English statement. Mercury reviewers have seen this exact format thousands of times — both their AI pre-check and human reviewers recognize it. See the full ranking with use cases at Start Your Business.
What to do when the AI flags a mismatch:
After uploading the CMB statement, Mercury's system may show a red banner like "name / address could not be verified." This does not always mean rejection — often the AI simply cannot map Chinese pinyin name and Chinese characters to your English form fields automatically.
Submit anyway. Within 1–2 business days Mercury will open a chat asking for clarification. In that chat, explain item-by-item:
- The English address on the application and the Chinese address on the statement are the same physical address
- The pinyin name [Zhang San] corresponds to the Chinese name [张三]
- English address parts vs Chinese address parts: unit number = X号, compound = XX苑, street = XX路, city = XX市, postcode = XXXXXX
- Ask for a manual human review of the Chinese / English correspondence
The goal is to make it trivially obvious to the human reviewer that the name, address, and unit number all line up.
Step 8: Review & Submit
Walk through everything once before submitting. After submit, you reach a "You're nearly there" page. Funding from this screen significantly accelerates review — funded applications typically clear in ~1 business day, unfunded ones can take a week or more.
Funding methods:
- International credit card (Hong Kong Visa or international card) — fastest, 1–2 min
- Wise international transfer — 1–2 business days
- PayPal — 1–3 business days
$50–$500 is enough to trigger the acceleration. The money isn't locked. The $250 bonus requires $10K cumulative deposits within 90 days, which you don't need to hit on day one.
After Approval
Once your application is approved, your Mercury account is ready to use. Here are the key things to set up:
- Bind to Stripe for payment collection
- Explore Mercury's perks/benefits program for startup discounts
- Set up Checking + Savings accounts
- Order virtual and physical cards for business expenses
Account Fees
| Fee Type | Amount |
|---|---|
| Account opening | Free |
| Monthly fee | Free |
| Minimum balance | None |
| ACH transfers | Free |
| Domestic wire | $5/each |
| International wire | $20/each |
| Annual fee | None |
Tips for Approval
- Use English-language address proofs — HK bank statement is ideal
- Ensure name spelling matches exactly across all documents
- Have a professional website ready — Mercury may review it
- Business description should be clear and legitimate
- Don't rush — incomplete applications get rejected
FAQ
Do I need an SSN or ITIN?
No. Mercury supports foreign-owned US companies and does not require an SSN or ITIN to open an account.
Can I open an account from outside the US?
Yes. The entire application process is 100% online. You do not need to visit the US or any physical branch.
What if my application is rejected?
Contact Mercury support. Rejections are often fixable by providing additional documentation or clarifying your business activities.
Can I have multiple accounts?
Yes. Mercury offers both Checking and Savings accounts. You can use both simultaneously.
Is my money safe?
Yes. Mercury accounts are FDIC insured up to $250,000 through their partner banks.
