Skip to main content
Mortgage Squad Advisors
National Bank Mortgage

National Bank of Canada mortgage calculator.

Estimate your monthly payment using Canadian semi-annual compounding, then compare your quoted rate with an illustrative alternative. Mortgage Squad Advisors is an independent brokerage and is not affiliated with, endorsed by or sponsored by National Bank of Canada. National Bank of Canada marks are trademarks of National Bank of Canada. Estimates only; your bank’s written payout statement or commitment is final. Rates are illustrative scenarios as of October 2026, not verified bank rates; check the bank’s site or enter your written quote.

Fact-checked by Surrayya Afzal, Principal Broker, FSRA #M14001433·Last reviewed October 2026
  • FSRA licensed #13737
  • 100+ lender partners
  • 4.9 ★ Google rating (256 reviews)
  • 15,000+ Canadians helped
The short answer

The payment depends on the amount borrowed, the interest rate and amortization. Under 20% down, eligible purchases need mortgage default insurance. Banks often discount posted rates; a posted rate is not the same as a discounted branch quote. The defaults compare hypothetical rates, not an offer from National Bank of Canada.

Your numbers

$750k
$150k (20%)
4.14%
Illustrative 4.14% default. Enter your actual written quote.
25 yr
Estimated National Bank monthly payment
$3,202
25-year amortization · 4.14% entered rate
Your mortgage
Mortgage amount$600,000
Total mortgage$600,000
Illustrative comparison payment (6.79%)$4,125
Illustrative payment difference

Per month, versus National Bank’s posted rate — about $11,078/year.

−$923
Like your number? Let’s make it real.
No credit check to start. One advisor compares 100+ lenders for you.

Mortgage Squad Advisors · FSRA #13737 · Licensed in Ontario only.

Get pre-approved
(905) 553-8550
Save these numbers as a PDF.

Your inputs and results in one page you can keep.

Read the full explanationThe rules behind the numbers, with worked examples.

Compare a written bank offer with the market

Banks rarely charge their posted rate. Most borrowers receive a discount. Compare your actual branch or specialist offer with available brokerage offers, including fees, privileges and penalties; a comparison with a posted rate alone shows the widest possible gap.

A worked example: $750,000 with 20% down

A $600,000 mortgage at an illustrative 4.14% over 25 years costs $3,202 monthly. At the illustrative comparison rate of 6.79%, it costs $4,125, a difference of $923 monthly or $11,078 annually. These are hypothetical rates, not verified current National Bank of Canada pricing.

National Bank permits up to 10% of the original principal per calendar year and up to double the regular payment. Check your own mortgage terms.

Mortgage Squad Advisors is an independent brokerage and is not affiliated with, endorsed by or sponsored by National Bank of Canada. National Bank of Canada marks are trademarks of National Bank of Canada. Estimates only; your bank’s written payout statement or commitment is final. Rates are illustrative scenarios as of October 2026, not verified bank rates; check the bank’s site or enter your written quote.

Estimate your penalty before switching
How this is calculated
Mortgage Squad Advisors is an independent brokerage and is not affiliated with, endorsed by or sponsored by National Bank of Canada. National Bank of Canada marks are trademarks of National Bank of Canada. Estimates only; your bank’s written payout statement or commitment is final. Rates are illustrative scenarios as of October 2026, not verified bank rates; check the bank’s site or enter your written quote. Uses semi-annual compounding; insured 30-year amortization requires first-time-buyer or new-build eligibility. Insurance premium tax and closing costs are excluded.
FAQ

Common questions

Don’t see yours? Ask Maya.

Is this an official National Bank of Canada tool?
Mortgage Squad Advisors is an independent brokerage and is not affiliated with, endorsed by or sponsored by National Bank of Canada. National Bank of Canada marks are trademarks of National Bank of Canada. Estimates only; your bank’s written payout statement or commitment is final. Rates are illustrative scenarios as of October 2026, not verified bank rates; check the bank’s site or enter your written quote.
What rate should I use?
Enter the rate in your written quote. Posted rates are often discounted. Neither default is a verified current bank rate.
Can you compare my National Bank of Canada offer?
We compare what National Bank of Canada offers you with lenders available through our brokerage. This does not imply a submission agreement with National Bank of Canada. No credit pull to begin.
How is the payment calculated?
Using the Canadian semi-annual compounding convention for a fixed mortgage, so the estimate is close to what a Canadian lender would quote. Payment rounding, product terms and variable-rate compounding may differ.
Words to know
AmortizationCMHC premiumLoan-to-value
Related calculators & guides
Full payment calculatorNational Bank ratesNational Bank penaltyAffordability
See today’s rates behind these numbers: the Canadian Lending Snapshot

Ready to turn this estimate into a real rate?

We check your numbers with 100+ lenders. No credit check to start.

Get pre-approved