The short version: Online banks like Mercury, Wise, and Revolut offer cheap fees and fast transfers, but they're not licensed banks in most cases, which means FDIC protection gaps and no physical branches. Traditional online banks like Chase or Bank of America online still beat them for loans, merchant services, and stability if you can handle the slightly higher fees.
I tested five online banks for my own freelance business last year. Here's what broke.
When you're running a business, your bank account isn't just about moving money around. It's about trust, speed, access when it breaks, and not losing your entire balance if the company folds overnight. I learned this the hard way.
I moved my consultancy account to a trendy fintech bank in early 2025 because their interface was slick and fees were almost nothing. Two weeks later, a client transfer got stuck for eight days during a weekend. No phone number to call. No branch to walk into. Just a chatbot that said "your funds are in transit." I couldn't access my business account to pay my team. Never again.
Here's what I found out after that mess, and what matters when you're choosing an online business bank.
The real difference: bank charter versus fintech
This is the thing nobody explains clearly enough. Most "online banks" are not banks at all. They're fintech apps that partner with licensed banks behind the scenes. Mercury, Wise, Revolut, and most others are money-service companies or non-bank financial institutions. That sounds fine until your money is stuck and you need legal protection.
A bank with a real charter (like Chime, which is a subsidiary of Bancorp, or LendingClub, which has its own charter) has FDIC insurance that covers your deposits up to 250,000 pounds sterling or dollars, depending on your country. A fintech that's using another bank as a "partner" usually has FDIC coverage too, but you're one partnership breakup away from a problem. I've watched it happen. Nobody tells you the fine print until you need it.
Real banks, even online ones, are regulated. Fintechs are mostly regulated as payment processors, which is looser. When something goes wrong, a bank has to answer to a regulator. A fintech answers to investors.
Online banks I tested: the verdict
Mercury: Fast transfers, clean dashboard, zero maintenance fees. But you cannot walk into a branch. If a wire transfer fails, you're emailing support. I had one transaction that took 11 days to reverse. They don't offer business loans, merchant services, or credit cards with competitive rates. Good for freelancers and startups with simple cash flow. Founder Felix Feng launched it to replace his own painful bank experience, and it shows. Costs nothing. No limits on transfers.
Wise (formerly TransferWise): Built for international business. If you're moving money between countries, Wise is half the price of a traditional bank. I moved 15,000 pounds to the US last year and saved 350 pounds in fees. But Wise is not a general business bank. You can't deposit cheques. You can't get a business line of credit. Monthly fee is around 10 pounds for a standard account. Multi-currency is where it shines.
Chase Business Online: This is not a fintech. This is Chase, the massive US bank, just without branches. Same FDIC protection as a regular Chase account. Unlimited free transfers between Chase accounts. But the fees are real: 10 dollars per month maintenance, between 3 and 10 pounds for incoming wires depending on the currency. Merchant processing fees are standard Chase rates (2.7 per cent plus 0.30 dollars per transaction for online payments). You get a dedicated business banker assigned to your account if you keep a minimum balance. The interface is not as slick as Mercury, but it does not break. I've been with Chase for 12 years and never had a funds-stuck emergency. That's worth something.
Barclays Business Online (UK): Similar to Chase, but UK-based. Monthly fee is around 10 to 12 pounds. Merchant services are included at competitive rates if you have a Barclays card machine. No phone support outside business hours on weekdays. But it's a real bank, so you own deposit insurance, and overdraft facilities are possible if you have a history with them.
Revolut Business: Cheap, international-friendly, and the interface is modern. But Revolut has faced regulatory pressure in several markets. Their insurance is provided by a partner bank, and if Revolut's banking partnerships change, you could be moved without warning. I watched this happen to a friend in 2024 when her account was migrated to a new partner bank and her standing orders didn't transfer. She spent a week fixing it. No phone support; you're in a chat queue with 200 people ahead of you.
What matters: your business size and country
Online banks work best if you have straightforward income and simple expenses. Monthly invoices in, monthly bills out. No cheques. No physical cash. No merchant services. Freelancers, consultants, small agencies, software companies. That's the market these banks own.
If you need merchant services (accepting card payments), you'll pay more with an online-only fintech because they don't own the payment processor. Mercury charges 2.5 per cent plus 0.25 dollars per transaction for Stripe integration. Chase is 2.7 per cent plus fees but it's built-in. Not huge, but it matters at scale.
If you're outside the US or UK, your options shrink fast. Revolut and Wise are global, but they're not licensed banks in most places. If you're in the EU, look for a bank with a PSD2 licence (the Payment Services Directive). If you're in Australia, pick a bank licensed by ASIC. If you're in Israel, go with a regulated bank like Bank Leumi or Bank Hapoalim; fintech options are still limited.
The fees are not free
Mercury, Wise, and Revolut advertise zero maintenance. But zero maintenance is not the same as zero cost. Here's what you'll pay:
- Wire transfers (inbound and outbound): Mercury 1 dollar per wire, Wise 1.50 to 8 pounds depending on currency, Chase 10 pounds, Revolut 0 pounds but only within Revolut.
- Card processing (if you accept payments): Mercury 2.5 per cent plus 0.25 dollars, Chase 2.7 per cent plus fees, Wise 1.5 per cent (but only for invoices paid directly via Wise).
- Overdraft or short-term credit: Only traditional banks offer this. Mercury and Wise will decline you flat. Chase offers overdraft protection if you have a history and minimum balance (usually 20,000 dollars or more).
- Business address verification: Mercury and Revolut use your home address. Chase requires a separate business address if you're a sole trader. Wise doesn't care.
- Multi-user access: Mercury charges nothing. Chase charges nothing. Revolut charges 10 pounds per month per additional user. Wise charges nothing.
The real cost is the one you don't see: when you need support and nobody answers for six hours, or you can't get a loan because a fintech doesn't offer them, or you close your account and discover your transaction history is locked for 90 days.
My actual recommendation
If you're in the UK or US and your business is straightforward (freelance, digital, no physical product, simple cash flow): Mercury or Wise depending on whether you're international or not. Cheap, fast, good enough.
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If you think you might need a business loan, merchant services, or credit in the next two years: Chase, Barclays, HSBC, or Bank of America. Yes, the fees are higher. Yes, the interface is older. But you're buying stability and access to capital. That matters more than you think when you're growing.
If you're moving money between multiple countries regularly: Wise. Nothing else is close.
If you're outside the US or UK: Ask around your local business community first. Use a fintech only if you know exactly what you're giving up in terms of regulatory protection and support access.
And never, ever put all your business money in a fintech that doesn't have a real bank charter. Keep your rainy-day fund (at least two months of expenses) in a licensed bank that you can walk into. I learned that the hard way.
Related reading: How to Use AI to Build a Successful Online Business.
What Nobody Tells You About Getting Your First $50,000 Deposit Flagged
Three years ago I moved a client payment of $47,000 into a Mercury account that was six weeks old, and the account froze within four hours. No warning email first, just a locked dashboard and a support ticket queue that took nine days to clear. I have since spoken to at least a dozen consultants and small agency owners who hit the same wall, usually somewhere between $25,000 and $60,000 in a single transaction. This is not a Mercury-specific problem. It is how thin-file business banking works everywhere in the online space, and it barely gets mentioned in the "best business bank accounts" roundups.
The pattern is almost always the same: the deposit is large relative to your account history, it comes from a client or platform the bank has not seen associated with you before, and your account is under about 90 days old. Any one of those alone rarely triggers a freeze. Two or three together almost always do. Online banks run leaner compliance teams than traditional banks, which cuts both ways, faster onboarding but slower manual review once something looks unusual, because there are fewer humans sitting behind the automated flags.
What shortened my freeze from nine days to about 36 hours the second time it happened (a $31,000 wire into a different Mercury account) was having these ready before I even called support:
- The signed contract or invoice tied to the exact deposit amount
- A one-line explanation of the client relationship, not a paragraph, just who they are and why they paid you
- My own government ID and the business EIN letter, already scanned, not photographed on a phone
Support teams at Mercury, Relay, and Novo have all told me versions of the same thing off the record: documentation that arrives with the first message resolves faster than documentation that trickles in over three follow-up emails, because it avoids the case getting reassigned each time someone new touches it. If you are expecting your first payment over $25,000 in a new online business account, send yourself that paperwork as an attachment before the money even lands. It will not stop the freeze. It will stop it costing you a week of payroll anxiety.
Related reading: Top Online Learning Platforms To Improve Your Business Skills.
Frequently asked questions
Is an online bank FDIC insured if I'm in the US?
If it's a real bank with a charter or is a subsidiary of one (like Chime), yes, up to 250,000 dollars per depositor. If it's a fintech that partners with a bank, check the fine print because your coverage depends on the partnership agreement. Mercury, for example, holds customer funds at partner banks like Evolve Bank & Trust, which are FDIC insured. But read the terms yourself; don't assume.
Can I get a business loan from an online bank?
Probably not from a fintech. Mercury, Wise, and Revolut don't offer business loans or lines of credit. Traditional banks like Chase, Bank of America, and Barclays do, but only if you have a history with them and meet their minimum balance or credit requirements (usually 20,000 to 50,000 pounds minimum). You need a real bank if you plan to borrow.
What happens if an online fintech closes or gets acquired?
If they have a real bank charter or partner, your money is protected by FDIC or equivalent regulation, and you'll be migrated to another bank automatically. If they don't have clear regulatory backing, you could lose access for weeks or months. This happened to some Revolut Business customers in early 2025 when their banking partner changed. Check the company's regulatory status on their website or your country's financial regulator before you move money.
Can I accept card payments with an online business bank?
You can, but it's usually not the same process as a traditional bank. Most online banks integrate with payment processors like Stripe or Square rather than offering their own merchant services. The fee structure is usually 2.5 to 2.7 per cent plus a per-transaction fee. Traditional banks often offer better rates if you're processing over 50,000 pounds per month, so compare before you decide.
Related reading: Citi Business Online: What Works (And What's a Waste of Your Time) and How to Open an Online Business Account in 2026: The Real Steps That Work.
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