Thinking of making a prepayment? If you have an active CWB Optimum Mortgage, use this calculator to understand the costs involved.
The data generated by this tool is for estimation purposes only and is based on the information you provided. They do not in any way constitute a legal or contractual obligation to National Bank. Certain conditions apply.
The client agrees to have their personal situation in relation to any product described in these pages verified and analyzed with their accountant, tax expert, and a National Bank advisor.
The data generated by this tool is for estimation purposes only and is based on the information you provided. They do not in any way constitute a legal or contractual obligation to National Bank. Certain conditions apply.
The client agrees to have their personal situation in relation to any product described in these pages verified and analyzed with their accountant, tax expert, and a National Bank advisor.
This tool allows you to obtain an estimate of the amount of the charges payable following a prepayment of your mortgage loan. The data generated is an approximation only and does not create a legal or contractual obligation for National Bank. In the event of the prepayment of your loan, National Bank will provide you with the details of the exact amounts payable. For any questions, contact a customer service representative at 1-866-441-3775.
The client agrees to have their personal situation in relation to any product described in these pages verified and analyzed with their accountant, tax expert, and a National Bank advisor.
® NATIONAL BANK is a registered trademark of National Bank of Canada.
© NATIONAL BANK OF CANADA, 2026. All rights reserved. Any reproduction, in whole or in part, is subject to the written approval of National Bank of Canada.