Mercury vs Relay for an LLC: two strong online accounts, different instincts
Mercury and Relay both work best for LLC owners who want online business banking, clean money movement, and fewer branch visits. The choice is less about which one is universally better and more about how your LLC handles payments, reserves, partners, and books.
The short answer
For a simple online LLC, either Mercury or Relay can be a reasonable business banking platform. Mercury feels more built around startup-style banking, cards, wires, global vendor payments, and a broader finance platform. Relay feels more built around cash-flow organization: multiple checking accounts, user permissions, bill pay, bookkeeping support, and giving accountants cleaner access.
Neither company is a bank in the traditional sense. Mercury says it is a fintech company, not an FDIC-insured bank, with banking services through Choice Financial Group and Column N.A., Members FDIC. Relay says it is a financial technology company, not an FDIC-insured bank, with banking services provided by Thread Bank, Member FDIC. That does not make either one bad. It does mean LLC owners should read the deposit and partner-bank language instead of stopping at the app screenshots.
Mercury vs Relay at a glance
| Question | Mercury | Relay |
|---|---|---|
| Best fit | Startup, software, agency, ecommerce, remote services, venture-style companies. | Small businesses that want account buckets, approvals, bookkeeping data, and team access. |
| Monthly fee | Core business banking is advertised at $0 per month; paid workflow plans exist. | Starter is $0 per month; Grow and Scale are paid tiers. |
| Money movement | ACH, wires, real-time payments, checks, cards, and international vendor payments. | ACH, domestic wires, international wires, checks, cash deposits, and payment processor payouts. |
| Bookkeeping | QuickBooks and Xero integrations are advertised. | QuickBooks Online and Xero sync are central to the product pitch. |
| Deposit wording | Partner banks plus sweep network language, with advertised expanded FDIC coverage. | Banking through Thread Bank, Member FDIC. |
Where Mercury is stronger
Mercury is often the cleaner fit when the LLC looks like a modern online company. Its business banking page emphasizes free checking and savings accounts, virtual and physical cards, free domestic and international USD wires, ACH, real-time payments, checks, and global payments in local currencies with a currency exchange fee. It also leans into automations, approvals, API access, and a larger financial operating system.
That matters if your LLC pays software vendors, contractors, international suppliers, or remote team members. It also matters if you want one platform that can grow into cards, treasury-like products, expense workflows, and startup finance operations. A one-owner consulting LLC may not need all of that on day one, but a fast-growing agency or software shop might appreciate not having to move banks again six months later.
The tradeoff is that Mercury can feel like more platform than a very small local LLC needs. If your business deposits cash, wants a branch relationship, or simply wants a plain account with a few savings buckets, Mercury's strengths may not be the deciding factors.
Where Relay is stronger
Relay's pitch is more operational. Its product page focuses on consolidating money from ACH, wires, checks, cash, and payment processors, then dividing that money into accounts. Its pricing page says the free Starter plan includes 20 checking accounts, debit and credit cards, invoice creation and tracking, accounting integrations, unlimited users, and built-in spend controls. Paid tiers add stronger approval rules, bookkeeping automations, and higher savings APY.
That structure can be useful for an LLC that wants simple internal envelopes: operating account, tax reserve, payroll, owner's pay, sales tax, inventory, or profit. It can also be useful for a multi-member LLC where each owner, employee, or bookkeeper should have the right access without sharing one login.
Relay is not only for larger teams. A solo owner who wants cleaner books may still like it. But its advantage becomes more obvious once more than one person touches the money.
The IRS and SBA context
The bank comparison comes after the basic setup sequence. The IRS says that if you are creating an LLC, you should form the entity through the secretary of state before applying for an EIN; if you do not form first, the EIN application may be delayed. The IRS also says the EIN is free. The SBA says a business bank account helps keep business funds separate from personal funds, and says common bank requirements include an EIN, formation documents, ownership agreements, and sometimes a business license.
So the clean order is simple: form the LLC, get the EIN, gather the operating agreement and state filing proof, then apply. Some providers may have specific edge cases, but do not build your setup around a shortcut unless the bank itself confirms it.
FDIC coverage: read the actual wording
The FDIC says deposit insurance protects money held at an FDIC-insured bank, generally at least $250,000 per depositor, per insured bank, per ownership category. Fintech platforms often rely on partner banks and sometimes sweep networks. That can still provide coverage, but it is not the same sentence as opening an account directly at a bank branch.
For a small LLC with modest operating balances, this may be a practical rather than scary distinction. For an LLC holding large reserves, investor money, payroll funds, client funds, or regulated funds, ask more questions. Confirm where deposits are held, what is insured, what is not insured, and how sweep or treasury features differ from ordinary checking.
Which one should an LLC choose?
Pick Mercury if your LLC is remote-first, startup-like, international, software-driven, or likely to need strong cards, wires, automation, and finance tools. Pick Relay if you care more about multiple account buckets, cash-flow discipline, bookkeeping visibility, user permissions, and accountant-friendly access.
If your LLC deposits cash every week, neither should automatically beat a local bank or credit union. If your LLC has unusual tax treatment, foreign owners, high balances, or regulated money movement, treat this article as general education, not financial or legal advice. Read current terms and ask a qualified professional when the account choice affects tax, compliance, or fiduciary duties.
Bottom line
Mercury is the more startup-flavored account. Relay is the more cash-flow-organized account. Both can work for an LLC. The better choice is the one that makes your money easier to separate, move, reconcile, and explain.