Residential Debt Analysis

Blended Interest Rate Calculator

Add every debt you carry — mortgage, credit cards, CRA, vehicle, line of credit — and see your true blended effective rate. Then see what consolidating into one mortgage would save you each year.

Your debts

Canadian fixed mortgages compound semi-annually by law.

Effective annual rate (EAR): 5.36%Annual interest: $32,160

Credit card interest compounds daily — the EAR can be 2+ points higher than the posted rate.

Effective annual rate (EAR): 22.12%Annual interest: $2,655
Effective annual rate (EAR): 8.83%Annual interest: $2,472

What if you rolled it all into one mortgage?

% semi-annual

Canadian fixed mortgages compound semi-annually by law, so we apply the same standard to your proposed rate for an apples-to-apples comparison.

Your blended effective rate
5.83%
on $640,000 total · weighted nominal 5.71%

Annual interest cost

🏠 Mortgage (Fixed) · 5.36% EAR$32,160
🧾 Credit Card · 22.12% EAR$2,655
🚗 Vehicle Loan · 8.83% EAR$2,472
Total / year$37,286
≈ $3,107 every month going to interest alone.

Consolidated at 5.29%

New annual interest$34,304
Annual savings$2,983
Monthly savings$249

Interest-cost comparison only — doesn't include refinance fees, penalty to break the existing mortgage, or amortization changes. Your broker will run the full break-even for you.

Effective Annual Rate (EAR) = (1 + r/n)n − 1. Compounding follows Canadian convention: fixed mortgages semi-annual, variable / LOC / HELOC monthly, credit card and CRA daily.

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How it works: each debt is converted to an Effective Annual Rate (EAR) using its actual compounding schedule, then weighted by balance to produce your blended rate. CRA and credit card balances are compounded daily — usually the silent killers of household cash flow.

Also see: Land transfer tax → · Broker fees →