BMO is a major North American bank that handles checking, savings, loans, and investment accounts

BMO Financial Group (Bank of Montreal) is a publicly traded bank headquartered in Toronto that operates across the United States and Canada. In the U.S., it operates primarily through BMO Harris Bank, which offers personal checking and savings accounts, mortgages, auto loans, credit cards, and investment services. The bank processes millions of transactions daily through ATMs, branches, online banking, and mobile apps.

If you have a BMO account or are considering one, understanding how the bank operates helps you navigate payments, transfers, deposits, and dispute resolution. BMO is a traditional full-service bank, meaning it takes deposits, makes loans, and moves money between accounts—not a payment app or fintech service.

Key Takeaways

  • BMO Harris Bank is the U.S. arm of Bank of Montreal and offers standard banking products: checking, savings, loans, and credit cards.
  • Transactions through BMO use standard banking rails: ACH transfers, wire transfers, debit cards, and checks, each with different timelines and costs.
  • BMO accounts are FDIC-insured up to $250,000 per account type per depositor, protecting your money if the bank fails.
  • If a payment from your BMO account goes wrong—sent to the wrong person, charged twice, or fraudulently—you have dispute and chargeback rights that vary by transaction type.

How BMO processes payments and transfers

Money leaving a BMO account moves through different channels depending on how you send it. A debit card transaction at a store or online clears in one to three business days. An ACH transfer (Automated Clearing House)—used for bill pay, direct deposit, and peer transfers—takes one to three business days and is free. A wire transfer arrives the same day or next business day but costs $15 to $30 depending on whether it goes domestic or international.

Checks written from a BMO account can take five to ten business days to clear, depending on where the check is deposited. Zelle, BMO's peer-to-peer transfer service, moves money between enrolled users in minutes, but only within the U.S. and only to people you have already added to your contacts.

Each method has different fraud protections and dispute windows. Knowing which one you used matters if something goes wrong.

FDIC insurance and account protection

BMO is an FDIC-insured bank, meaning the Federal Deposit Insurance Corporation backs deposits up to $250,000 per account type per depositor. If you have a checking account, a savings account, and a money market account at BMO, each is insured separately up to $250,000. Joint accounts are insured separately from individual accounts. If BMO failed tomorrow, the FDIC would reimburse you up to those limits.

Investment accounts, brokerage accounts, and retirement accounts held at BMO have different protections. Stocks and mutual funds are not FDIC-insured; they are held in your name and protected by Securities Investor Protection Corporation (SIPC) rules instead. Ask BMO directly which of your accounts fall under FDIC coverage and which do not.

What happens if a payment goes wrong

If you sent money from your BMO account and it landed in the wrong account, was charged twice, or was taken without your permission, your next step depends on how the money left.

For debit card transactions, you have up to 60 days to report fraud or error. BMO will investigate and typically refund you within 10 business days if the charge was unauthorized. For ACH transfers, you have up to 60 days to report an error, but the window to stop a payment before it clears is much shorter—usually one business day. For wire transfers, once sent, the money is gone; BMO can ask the receiving bank to recall it, but there is no may provide. For checks, if a check was forged or altered, you have up to one year to report it.

Zelle transfers are harder to recover. Once sent to an enrolled user, the money is treated as delivered, and Zelle does not reverse payments for buyer's remorse or mistakes. If you sent money to the wrong person, you must contact that person directly and ask them to return it. If the transfer was fraudulent (someone else sent it from your account), report it to BMO within 60 days.

How to contact BMO for payment issues

If a payment is late, missing, or disputed, call BMO's customer service line at 1-800-BMO-1234 (1-800-266-1234) or log into your BMO Harris Bank online account and use the secure message center. Have your account number, the transaction date, and the amount ready. For fraud or unauthorized transactions, call immediately—the sooner you report, the stronger your case.

BMO has a formal dispute process. After you report the issue by phone or secure message, BMO will open an investigation, contact the other bank if needed, and send you written confirmation of the dispute number. You can track the status online or by phone. Most disputes resolve within 10 to 30 business days, though some take longer if the other bank is slow to respond.

BMO's role in bill payments and automatic transfers

Many people use BMO's bill pay service to send money to utilities, landlords, insurance companies, and other payees. Bill pay uses ACH transfers, which means payments typically arrive three to five business days after you schedule them. If you schedule a payment for the wrong date or to the wrong payee, you can cancel it before it clears—usually up to one business day before the scheduled send date. After that, the money is in the system and you must contact the receiving organization to ask for a refund.

Direct deposit into a BMO account (from an employer or government agency) typically arrives one to two business days after the payer initiates it. If your direct deposit is late, contact your employer's payroll department first; BMO cannot speed up a deposit that has not yet been sent.

Fees and costs you should know

BMO charges monthly maintenance fees on some checking accounts (typically $5 to $12), though many accounts waive the fee if you maintain a minimum balance or set up direct deposit. Overdraft fees run $35 per transaction if you spend more than your balance. Wire transfer fees are $15 domestic and $30 international. ATM withdrawals at non-BMO ATMs may incur a $2 to $3 fee depending on the ATM operator.

There is no fee for ACH transfers, bill pay, or Zelle transfers. Cashier's checks cost $5 to $10. Stop-payment requests on checks cost $25 to $35. Ask BMO for a full fee schedule before opening an account, as rates vary by account type and region.

Frequently Asked Questions

How long does it take money to arrive in my BMO account?

It depends on the source. Direct deposit and ACH transfers typically arrive one to three business days after the sender initiates them. Wire transfers arrive the same day or next business day. Checks take five to ten business days. Zelle transfers arrive in minutes if both parties are enrolled.

What if I sent money to the wrong person by accident?

If you used ACH or bill pay, contact BMO immediately—you have one business day to stop the payment before it clears. If it already cleared, you must contact the receiving organization and ask them to return it. For Zelle, contact the recipient directly; Zelle does not reverse payments for mistakes. For wire transfers, ask BMO to attempt a recall, but there is no may provide.

Is my money safe at BMO if the bank fails?

Yes, up to $250,000 per account type. Checking, savings, and money market accounts are each insured separately. Joint accounts are insured separately from individual accounts. Investment and brokerage accounts have different protections under SIPC rules.

Can I dispute a debit card charge from BMO?

Yes. You have up to 60 days to report an unauthorized or incorrect charge. Call BMO or use your online account to file a dispute. BMO will investigate and typically refund you within 10 business days if the charge was fraudulent.

What should I do if my BMO account was hacked?

Call BMO immediately at 1-800-266-1234 and report the unauthorized transactions. BMO will freeze your account, investigate the breach, and issue a new debit card. Report any fraudulent charges within 60 days. Change your password and enable two-factor authentication on your account.