How to Cancel a BMO Credit Card

Closing Your BMO Mastercard Account: A Step-by-Step Guide

Olesya Krasavtseva
Fact-checked by Olesya Krasavtseva
Content Editor at Prostobank Consulting Prostobank Consulting Logo
Updated: 01.11.2026
Table of Contents

Deciding to close a BMO Mastercard account requires more than just stopping your spending. In the Canadian banking landscape, closing a credit account can impact your credit utilization ratio and the average age of your credit history. It is essential to weigh these factors against your financial goals before proceeding with a permanent cancellation.

Before you initiate the request, ensure that your account balance is zero and that all pending transactions have been posted. BMO does not currently allow cardholders to cancel credit accounts through the BMO Mobile Banking app or online portal for security reasons; therefore, you must interact with a representative to finalize the process.

BMO Cancellation Requirements

Category Details
Official Phone Number 1-800-263-2263 (Customer Service)
Alternative Method Visit any local BMO Branch in Canada.
Account Balance Must be $0.00 (No credits or debits).
Processing Time Immediate closure; 30 days for final statement.

Algorithm: How to Cancel Your Card Step-by-Step

To ensure your account is closed correctly and your credit report is updated, follow this exact sequence of actions:

  • Step 1: Log in to BMO Online Banking and pay off any remaining balance in full, including cents.
  • Step 2: Redeem any remaining BMO Rewards or transfer Air Miles to avoid losing them.
  • Step 3: Cancel all Pre-authorized Payments (Netflix, insurance, etc.) associated with the card.
  • Step 4: Call 1-800-263-2263. When prompted, enter your 16-digit card number and follow the menu to speak with a representative.
  • Step 5: Explicitly state that you wish to close the account and request a Confirmation Number.
  • Step 6: Destroy the physical card by cutting through the EMV chip and magnetic stripe.

Pro-Tip: Instead of canceling, ask the representative for a "Product Switch" to a no-fee BMO card. This keeps your account age intact on your credit report and preserves your credit limit, which helps maintain a high credit score.

Troubleshooting Cancellation Pain Points

Closing an account can occasionally trigger these common issues:

  • Residual Interest: Even if you pay your balance to zero, "trailing interest" may appear on your final statement. You must pay this last amount to fully close the account.
  • MFA for Verification: When calling BMO, ensure your registered mobile phone is nearby. The agent may send a Multi-Factor Authentication code to verify your identity.
  • Locked Rewards: Once the account is closed, your BMO Rewards portal access is revoked. You cannot reclaim points after the phone call ends.

Efficiency Hack for Faster Closure

To bypass the general customer service queue, call during the middle of the week (Tuesday through Thursday) between 8:00 AM and 10:00 AM EST. This typically results in significantly shorter wait times and faster access to the Retention Department, which handles final account closures.

Frequently Asked Questions

Can I cancel my BMO credit card via secure message?

No. While you can ask questions via the BMO Message Centre, a formal cancellation requires a verbal confirmation over the phone or an in-person visit to a branch for security verification.

What happens to my Air Miles if I cancel my BMO card?

Your Air Miles stay in your Air Miles Collector account, but you will stop earning miles on purchases once the card is closed. Any BMO Rewards points, however, are forfeited immediately upon closure.

Official Bank Information

Bank Of Montreal

Support: 877-225-5266

SWIFT Code: BOFMCAM2

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