If you’re comparing platforms and asking, what online business banks have the lowest transaction fees?—you’re doing exactly what lean operators do: protecting margin. Transaction costs hide in the fine print—ACH, wires, mailed checks, ATM use, even “express” options—and they add up. Here’s a clear, apples-to-apples rundown of banks with notably low or transparent fee structures so you can move money without burning cash in the process.

1. North One

This bank’s made for quick-moving business owners who want to keep their costs low. North One keeps the basics inexpensive and predictable—standard ACH and incoming wires are free, and you only pay when you need speed or specialized services. You also get a clean budgeting layer (Envelopes) that keeps tax, payroll, and rent money separated so you don’t overspend.

Cost breakdown (Standard Plan):

  • Monthly fee: $0
  • Standard ACH: $0
  • Same-day ACH: 1.5% (min $1, max $20)
  • Incoming domestic wire: Free
  • Outgoing domestic wire: $20
  • Checks/mailed checks: $1 per physical check

Cost breakdown (Plus Plan):

  • Monthly fee: $30/month or $300 annually
  • Standard ACH: $0
  • Same-day ACH: $0
  • Incoming domestic wire: $0
  • Outgoing domestic wire: $15
  • Checks/mailed checks: $0
  • Cash deposits: Up to $4.95 at Green Dot locations

2. Mercury

If your company is software-heavy and cashless, Mercury’s fee approach is compelling: ACH, domestic USD wires, and check payments are free. International payments in non-USD come with FX fees; you can also opt to cover intermediary charges for USD wires.

  • Monthly fee: $0 for core banking (paid plans exist for advanced workflows)
  • Standard ACH: $0
  • Same-day ACH: Available; core ACH is free (premium workflows may add cost)
  • Incoming domestic wire: $0
  • Outgoing domestic wire: $0

3. Bluevine

Bluevine’s Standard plan keeps most day-to-day activity free and posts its wire and expedited ACH fees plainly, which helps business owners with forecasting.

Cost breakdown (Standard Plan):

  • Monthly fee: $0
  • Standard ACH: $0
  • Same-day ACH: $10 per transfer
  • Incoming domestic wire: $0
  • Outgoing domestic wire: $15 per transfer
  • Physical checks: $1.50 per mailed check
  • Cash deposit (Green Dot): Up to $4.95 per deposit
  • Cash deposit (Allpoint+ ATM): $1 + 0.5% of the deposit amount

Cost breakdown (Plus Plan):

  • Monthly fee: $30 (can be waived with qualifying spend/balance)
  • Standard ACH: $0
  • Same-day ACH: $8 per transfer
  • Incoming domestic wire: $0
  • Outgoing domestic wire: $12 per transfer
  • Physical checks: Includes a set number of free mailed checks each month
  • Cash deposits (Green Dot/Allpoint+): Same as Standard

Cost breakdown (Premier Plan):

  • Monthly fee: $95 (can be waived with qualifying spend/balance)
  • Standard ACH: $0
  • Same-day ACH: $5 per transfer
  • Incoming domestic wire: $0
  • Outgoing domestic wire: $7.50 per transfer
  • Physical checks: Includes a set number of free mailed checks each month
  • Cash deposits (Green Dot/Allpoint+): Same as Standard

4. Novo

Novo is a solid pick for solo operators and small teams that want simple, low-cost movement and basic tools baked in. It also reimburses third-party ATM fees up to $7/month and accepts incoming wires for free.

  • Monthly fee: $0
  • Standard ACH: $0 (express options available at added cost)
  • Same-day/express ACH: 1.5% of the transaction amount ($0.50 – $20)
  • Incoming domestic wire: $0
  • ATM: Up to $7/month in third-party ATM fee reimbursement

5. Relay

Relay’s tiers (Starter, Grow, Scale) bundle banking with spend controls and approvals. Standard ACH is $0 on every plan, while same-day ACH and wires get cheaper as you move up.

Cost breakdown (Starter Plan):

  • Monthly fee: $0
  • Standard ACH: $0
  • Same-day ACH: $5 per transfer
  • Outgoing domestic wire: $8 per transfer
  • Incoming wires via Payment Requests: $5 per transfer

Cost breakdown (Grow Plan):

  • Monthly fee: $30
  • Standard ACH: $0
  • Same-day ACH: $3 per transfer
  • Outgoing domestic wire: $5 per transfer
  • Incoming wires via Payment Requests: $5 per transfer

Cost breakdown (Scale Plan):

  • Monthly fee: $90 promotional / $120 standard
  • Standard ACH: $0
  • Same-day ACH: 10 free per month, then $1 each
  • Outgoing domestic wire: $5 per transfer
  • Incoming wires via Payment Requests: $5 per transfer

6. Grasshopper Bank

Grasshopper publishes a detailed fee schedule: ACH is complimentary, including same-day ACH, and incoming domestic wires are complimentary. Outgoing wires are low and predictable. Here’s a cost breakdown for the Innovator/Accelerator Tiers:

  • Monthly fee: $0
  • Standard ACH: $0
  • Same-day ACH: $0
  • Incoming domestic wire: $0
  • Outgoing domestic wire: $10

7. NBKC

NBKC keeps core costs low and is unusually cheap on wires. Just know that business ACH origination is a paid service.

  • Monthly fee: $0
  • Standard ACH: $0 per transfer, origination service fee of $15/month or $150/year
  • Incoming domestic wire: $0
  • Outgoing domestic wire: $5 per transfer

8. Axos Bank Basic Business Checking

Axos keeps monthly and transaction fees to a minimum and rebates unlimited domestic ATM fees. It also offers two free outgoing domestic wires per month and free incoming wires.

  • Monthly fee: $0
  • Standard ACH: $0
  • Incoming domestic wire: $0
  • Outgoing domestic wire: 2 free per month; then standard fee applies

9. Lili

For basic use, Lili Basic is fee-friendly: no monthly fee, free standard ACH, and fee-free in-network ATM withdrawals. Paid tiers add features, and the express ACH option uses a transparent percentage fee with caps.

  • Monthly fee: $0 (Basic); $15 Pro; $35 Smart; $55 Premium
  • Standard ACH: $0 (all plans)
  • Express ACH: 1.5% (min $0.50, max $20)
  • Incoming domestic wire: $0
  • Outgoing domestic wire: $15

10. American Express® Business Checking

Amex Business Checking suits card-centric businesses that want $0 monthly fees, $0 incoming wires, and easy digital banking. Some a-la-carte items—like $25 outgoing domestic wires and $10 same-day ACH—are predictable and easy to budget.

  • Monthly fee: $0
  • Standard ACH: $0
  • Same-day ACH: $10
  • Incoming wires (domestic/international): $0
  • Outgoing domestic wire: $25

How Can You Keep Fees Low?

Banking fees can add up, so it’s worth finding accounts that go out of their way to keep costs low. That said, the real savings come from daily habits. Here’s a simple playbook:

  • Route payments by cost. Use free ACH for vendors who don’t need instant settlement; reserve same-day ACH/wires for payroll, critical payouts, or tight due dates.
  • Use sub-accounts or budgeting tools. Keeping tax and payroll funds quarantined lowers the odds of rush transfers.
  • Know your ATM and cash policy. If you handle cash, choose a bank with cash-deposit rails and ATM reimbursements. If you’re online-only, pick a platform with free wires and free ACH.
  • Check the fee page quarterly. Banks update pricing. A five-minute scan protects your margin.

Cut Your Fees and Keep More Margin

Your bank shouldn’t nibble at every transaction. If you’ve been wondering what online business banks have the lowest transaction fees, you’ve got the short list above—now pick the one that fits your workflow and volume.

If you want a platform that gets out of your way and keeps core movement inexpensive, North One makes it simple: free standard ACH, free incoming wires, and clear, predictable pricing when you need speed. Open your North One business bank account and keep more of what you earn.