Mercury vs Relay vs Wise Business: Best Bank for Your LLC in 2026
A head-to-head comparison of the three most popular digital banks for startups, e-commerce, and non-resident LLC owners.
Why Traditional Banks Fail Modern Businesses
Chase, Bank of America, and Wells Fargo remain dominant, but they struggle to serve:
- Remote-first startups with no physical U.S. office
- Non-resident founders without an SSN or U.S. credit history
- E-commerce sellers needing instant virtual cards and API access
- Crypto-adjacent businesses that traditional banks de-risk
- Companies needing 10+ debit cards without visiting a branch
Digital banks—technically neobanks partnering with FDIC-insured chartered banks—fill this gap. They offer modern interfaces, instant onboarding, and features designed for internet-native businesses.
Head-to-Head Comparison
| Feature | Mercury | Relay | Wise Business |
|---|---|---|---|
| Monthly Fee | $0 | $0 (Pro: $30/mo) | $0 (One-time $31 setup) |
| Domestic Wires | $0 | $0 (5/mo free) | $0 (ACH only; wires extra) |
| International Transfers | Via Wise integration | Via Wise integration | Best-in-class; mid-market rate |
| Virtual Cards | Unlimited | Unlimited | 3 free; $3/each after |
| Physical Cards | Unlimited | Unlimited | 1 free; $5/each after |
| Multi-User Access | Roles & permissions | Advanced roles + workflows | Basic multi-user |
| Accounting Integrations | QuickBooks, Xero | QuickBooks, Xero, Gusto | QuickBooks, Xero, FreeAgent |
| API Access | Full REST API | Limited API | API for transfers |
| Non-Resident Friendly | Yes (select countries) | Yes (broader acceptance) | Yes (most countries) |
| FDIC Insurance | Up to $5M (sweep networks) | Up to $250K | Not a bank; funds held at partner banks |
| Check Deposits | Mobile + mail | Mobile only | Not supported |
| Cash Deposits | Not supported | Not supported | Not supported |
Mercury: The Startup Standard
Mercury has become the default bank for Y Combinator startups, SaaS companies, and venture-backed businesses. Built by Immad Akhund (former YC partner), it understands startup banking better than anyone.
Key Strengths:
- Treasury accounts: Earn 4–5% APY on idle cash via sweep networks (Evolve Bank & Trust)
- IO Cards: Charge cards with 1.5% cashback, no personal guarantee required
- Cap Table & fundraising tools: Built-in SAFE note tracking and investor updates
- Priority support: Dedicated relationship managers for accounts >$250K
- Clean UI: The most polished banking interface in the industry
Limitations:
- Stricter approval for non-residents (favors funded startups)
- No cash deposits (problem for retail businesses)
- Can freeze accounts during due diligence reviews
- Limited international transfer features without Wise integration
Best For:
Tech startups, SaaS, funded companies, and businesses with $100K+ in deposits seeking yield and premium features.
Relay: The Operations Powerhouse
Relay is built for businesses that need granular control over spending, multiple users, and detailed cash flow visibility. It is the most "accounting-friendly" of the three.
Key Strengths:
- Multiple accounts: Create up to 20 checking accounts for different purposes (payroll, taxes, OpEx)
- Advanced user permissions: Custom roles, approval workflows, and spending limits
- Auto-transfer rules: Percentage-based allocation of incoming revenue across accounts
- Profit First support: Native features for the popular profit-first accounting method
- Broader non-resident acceptance: More lenient than Mercury for international founders
Limitations:
- No interest-bearing accounts (no treasury/yield features)
- Less polished mobile app
- No native charge card or credit products
- API is less comprehensive than Mercury's
Best For:
Agencies, e-commerce operations, multi-member LLCs, and businesses using Profit First methodology.
Wise Business: The Global Champion
Wise (formerly TransferWise) revolutionized international money transfers. Wise Business extends that DNA to business banking with unmatched multi-currency capabilities.
Key Strengths:
- 50+ currencies: Hold, receive, and convert in local currency accounts
- Local account details: Get USD, EUR, GBP, AUD, and more routing numbers
- Mid-market exchange rates: Transparent 0.43%–1% conversion fee vs. 3–5% at traditional banks
- Global reach: Send to 160+ countries; receive from 30+
- Batch payments: Pay up to 1,000 recipients in one click
- Universal acceptance: Available in almost every country
Limitations:
- Not a full-service U.S. bank (no check deposits, no cash handling)
- Limited U.S. banking features (no domestic wires, limited ACH)
- No interest on balances
- Customer support can be slow for complex issues
Best For:
Freelancers, dropshippers, international e-commerce, and any business with significant cross-border payments.
Which One Should You Choose?
| Your Situation | Choose |
|---|---|
| Tech startup seeking funding | Mercury |
| Non-resident with no U.S. presence | Wise Business or Relay |
| Heavy international transfers | Wise Business |
| Multi-member LLC with complex cash flow | Relay |
| Need yield on idle cash | Mercury |
| Profit First methodology | Relay |
| Need both U.S. banking + global transfers | Mercury + Wise (combo) |
The Combo Strategy
Many savvy founders use two banks:
- Mercury or Relay as the primary U.S. operating account (payroll, domestic vendors, taxes)
- Wise Business as the international treasury (supplier payments, foreign customer receipts, currency hedging)
This gives you the best of both worlds without compromising on either domestic banking depth or global transfer efficiency.
Frequently Asked Questions
Can non-residents open Mercury, Relay, or Wise?
Yes, but with caveats. Mercury is selective and prefers funded startups. Relay accepts more non-residents but requires a U.S. LLC and EIN. Wise Business is the most accessible globally, available in 160+ countries with minimal documentation.
Are these real banks?
They are neobanks—financial technology companies partnered with chartered banks. Mercury partners with Evolve Bank & Trust. Relay partners with Thread Bank. Wise is not a bank but holds funds at regulated financial institutions. All offer FDIC protection on USD deposits.
Can I deposit cash?
No. None of these support cash deposits. If your business handles significant cash (retail, restaurant), you need a traditional bank like Chase or a local credit union alongside your digital bank.
Which has the best customer support?
Mercury offers the fastest response times for premium accounts. Relay provides detailed help documentation. Wise has the largest support team but can be slower for complex business issues.
Can I connect these to PayPal and Stripe?
Yes, all three connect to PayPal, Stripe, Shopify, and Amazon. Mercury and Relay offer native integrations; Wise connects via standard bank linking.
What if my application is rejected?
Apply to all three simultaneously. If rejected by Mercury, try Relay. If rejected by both, Wise Business is the most lenient. Ensure your LLC documents, EIN letter, and website are professional and complete before applying.
Choose Your Banking Stack Wisely
Your bank is not just a place to hold cash—it is a financial operating system. Pick the one that matches your business model, growth stage, and geographic footprint.