Mercury vs Relay for Delaware LLC.
Startup banking vs multi-account budgeting for Delaware LLCs. We compared fees, features, approval speed, and what happens after you open your account. Last updated: June 4, 2025.
Quick answer: Which is better?
Choose Mercury for startup banking and fundraising. Choose Relay if you need multiple accounts for budgeting and team permissions. Both are excellent free options for Delaware LLCs. Mercury works best for delaware llcs that are startups or tech companies, need savings accounts, want unlimited virtual cards, and prioritize api access and investor tools.. Relay works best for delaware llcs that are agencies, consultancies, or businesses that need multiple accounts for budgeting, client separation, or team spend controls.. Both are excellent options for Delaware LLCs, and many founders eventually open accounts at both banks to cover different use cases.
Mercury vs Relay — key facts.
Why choosing the right bank matters for your Delaware LLC.
Mercury and Relay both offer free business banking for Delaware LLCs, but they serve different needs. Mercury is built for startups and tech companies with a focus on fundraising, investor reporting, and developer tools. Relay is built for agencies, consultancies, and small businesses that need multiple bank accounts for budgeting and spend management. Mercury offers savings accounts (Vault) and better API access. Relay offers up to 20 separate checking accounts and superior multi-user permission controls.
The wrong bank costs more than just monthly fees. If your bank rejects wire transfers from international clients, you lose revenue. If your bank freezes your account because you are a non-US founder without an SSN, you cannot pay suppliers. If your bank charges 3% on foreign transactions, you lose $300 on every $10,000 in international revenue.
After helping hundreds of Delaware LLCs open bank accounts, we have learned that the best bank depends on three factors: your residency status, your revenue sources, and your need for cash handling. If you are a non-US founder with no SSN, Mercury and Relay are both viable, but one will fit your specific situation better.
Consider a non-US founder from India who just formed a Delaware LLC for a SaaS startup. Mercury accepts their foreign passport, approves the account in 1-5 days, and offers the features they need to operate remotely. Mercury's superior API access lets the founder connect Stripe and QuickBooks automatically. In this scenario, Mercury is the clear winner.
Now consider a US-based e-commerce business that buys inventory from Chinese suppliers and sells to American customers. FX rates are comparable between the two banks. Mercury provides unlimited virtual cards to separate advertising spend from inventory purchases. Neither bank accepts cash deposits, so the business would need a traditional bank for cash handling. The best choice depends on whether the business prioritizes US banking features or spend management tools.
How to choose between Mercury and Relay.
Check your eligibility
Mercury requires standard documentation. Relay requires standard documentation. Read each bank's restricted industries list before applying — crypto exchanges, gambling, adult content, and money services are rejected by most fintech banks. Make sure your EIN is issued and active. If you have a co-founder, confirm whether the bank supports multiple account administrators. Non-US founders should verify passport acceptance and SSN requirements.
Compare fees
Both have $0 monthly fees. Compare wire fees, FX fees, and ATM fees based on your expected transaction volume. Wire fees are comparable. For a business sending $10,000 per month internationally, the annual fee difference can exceed $500.
Evaluate features
If you need virtual cards and API access, one bank wins. If you need savings accounts, the other wins. E-commerce businesses should prioritize API access and virtual cards. Agencies should look for multi-account features. International businesses need multi-currency support and fair FX rates. Make a list of your top three must-have features and see which bank checks all three.
Apply to your first choice
Submit your application with complete documentation. Use your exact LLC name as it appears on your Certificate of Formation. Enter your EIN without dashes. Upload clear, high-resolution scans of all documents. The application takes 10-20 minutes. Do not rush: incorrect information causes rejection or manual review delays. Apply on a Monday morning for the fastest turnaround.
Consider both
Many successful Delaware LLCs open both accounts — Mercury for US operations and Relay for international or specific use cases. Having two accounts reduces risk if one bank freezes your account for review. It also lets you optimize fees: use the cheaper bank for each transaction type. Start with your primary bank, then add the second account after 30-60 days of stable operation.
Full comparison table: Mercury vs Relay.
| Feature | Mercury | Relay |
|---|---|---|
| Primary strength | Startup banking and fundraising | Multi-account budgeting |
| Monthly fee | $0 | $0 |
| Number of accounts | 1 checking + 1 savings (Vault) | ✓Up to 20 checking accounts |
| Multi-user permissions | Good | ✓Excellent (granular controls) |
| API access | ✓Excellent | Good |
| Savings accounts | ✓Yes (Vault) | No |
| Virtual cards | ✓Unlimited | Yes |
| Non-US founders | ✓Excellent | Good |
| Accounting integrations | QuickBooks, Xero, Stripe, Gusto | QuickBooks, Xero, Gusto, Bill.com |
| Approval speed | ✓1-5 days | 2-5 days |
| Best for | Startups and tech companies | Agencies and multi-project businesses |
Detailed scenario analysis: Which bank wins?
Scenario 1: Non-US founder with no SSN
Mercury wins. Excellent. Relay requires more documentation or restricts certain nationalities. Mercury also approves faster (1-5 days), so the founder can start operating sooner. For a founder in India, Nigeria, or Brazil, the ability to open an account without flying to the US saves thousands of dollars and weeks of delay.
Scenario 2: E-commerce business with international suppliers
FX costs are comparable. Mercury provides unlimited virtual cards to isolate advertising spend, supplier payments, and subscription services. Mercury's API lets the business automate reconciliation between Shopify, Stripe, and the bank account. E-commerce businesses with $100,000+ monthly revenue should prioritize the bank with lower FX fees, as savings scale directly with volume.
Scenario 3: Cash-heavy business (retail, restaurant, events)
Neither bank accepts cash deposits. Both are fintech platforms without branch networks. A cash-heavy business needs Chase, Bank of America, or Capital One for deposit capability, and can use Mercury or Relay as a secondary account for digital operations. Mercury also offers savings accounts to set aside tax reserves from cash revenue. If your business collects more than $1,000 in cash per month, a traditional bank with branch access is non-negotiable regardless of which digital bank you prefer.
Pricing: What you actually pay.
Delaware LLCs that are startups or tech companies, need savings accounts, want unlimited virtual cards, and prioritize API access and investor tools.
Delaware LLCs that are agencies, consultancies, or businesses that need multiple accounts for budgeting, client separation, or team spend controls.
Timeline: Application to first transaction.
Apply to Mercury online. Submit documents.
Apply to Relay online. Submit documents.
Mercury reviews application.
Relay reviews application.
Mercury approves or requests more info.
Relay approves or requests more info.
Fund Mercury account. Activate card.
Fund Relay account. Activate card.
Use Mercury for US operations.
Use Relay for international or specific needs.
FAQ: Mercury vs Relay.
Which is better for non-US founders, Mercury or Relay?
Mercury is better for non-US founders. Mercury accepts foreign passports with fewer restrictions, while the alternative requires additional documentation or has nationality limitations. For founders from India, Nigeria, Brazil, or the UK, this difference determines whether you can open an account at all. Both banks approve non-US founders in 1-5 days, which is faster than traditional banks.
Can I open both Mercury and Relay?
Yes. Many Delaware LLCs maintain multiple bank accounts. Mercury and Relay complement each other well. Having two accounts reduces risk if one bank freezes your account for a routine compliance review. It also lets you optimize fees: use Relay for wires and either bank for international transfers. There is no regulatory limit on the number of business bank accounts a Delaware LLC can hold. We recommend starting with the bank that fits your primary use case, then adding the second account after 30-60 days of stable operation.
Which has lower fees?
Both have $0 monthly fees. Compare wire fees, FX fees, and ATM fees based on your usage. Wire fees are comparable. For a business sending $10,000 per month internationally, the fee difference can equal $200-$400 annually. If you primarily operate in the US with occasional international payments, the fee gap may not matter. If you pay suppliers in EUR or GBP every month, the cheaper FX bank saves thousands per year.
Which approves faster?
Mercury typically approves faster. 1-5 days vs 2-5 days. Faster approval matters if you have a product launch, supplier payment deadline, or investor wire incoming. Both banks offer online applications that take 10-20 minutes. Submit your application on a Monday morning for the fastest turnaround. Make sure your EIN is active and your documents match exactly to avoid manual review delays.
Which is better for e-commerce?
Mercury has better API access for e-commerce integrations. Mercury also wins on virtual cards, which are essential for managing ad spend and subscriptions safely. E-commerce businesses processing high transaction volumes need automated reconciliation and unlimited virtual cards. Both banks integrate with Stripe and PayPal for payment processing.
What if I get rejected?
If Mercury rejects you, apply to Relay immediately. Most rejections are due to documentation issues, not eligibility. Common rejection reasons include mismatched LLC names, missing EIN letters, high-risk industry classification, and unclear business descriptions. Fix the issue, gather complete documentation, and reapply. You can also work with a DelawareLLC.co specialist who reviews your application before submission. If both banks reject you, consider Relay or Novo as third alternatives. Each bank has slightly different risk criteria, so a rejection from one does not predict rejection from another.
Do I need an EIN for both?
Yes. Both banks require an EIN from the IRS. Apply for your EIN before opening any business bank account. Banks verify your EIN against IRS records during the application process. If your EIN was issued less than 2 weeks ago, some banks may not find it in the database yet. Wait until your EIN confirmation letter arrives before applying. For non-US founders, EIN processing takes 2-4 weeks after filing Form SS-4. Do not attempt to apply with a pending EIN — the application will be rejected automatically.
Can I switch later?
Yes. You can open a new account and transfer funds at any time. There is no penalty for switching banks. Many Delaware LLCs start with one bank and add a second account as their business grows. To switch, open the new account, update your payment processor and payroll direct deposit, wait 30 days to confirm all transactions clear, then close the old account. Keep your old account statements for at least 7 years for tax purposes. If you have recurring payments, update each vendor individually to avoid missed payments.
Tools to help you decide.
Related guides.
Read our best bank guide, online banking guide, or individual reviews of Mercury and Relay. Learn about EIN requirements and Delaware LLC banking.
Before you choose, understand Delaware LLC costs and non-resident banking requirements. If you run an e-commerce business, see our e-commerce banking guide. For startups planning to raise venture capital, read about C-Corp vs LLC structures and SaaS startup banking.
After you open your account, set up Stripe and PayPal to accept customer payments. See Delaware LLC taxes to understand your filing obligations and how your bank statements feed into tax preparation.
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