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Should You Refinance or Get a Second Mortgage to Pay Off Debt?

A plain-language guide to using your home equity to clean up high-interest debt in Canada.

Welcome to the MyRealEstateCalculator.ca blog — your national hub for mortgage insights, personal finance guidance, and real-estate calculators. Browse this guide to understand your options, then run the numbers using our free tools before you make any decisions.

Canadians are carrying more debt than ever—credit cards, high-interest loans, lines of credit, car payments, and HELOCs that are nearly maxed out.


When monthly payments start to feel unmanageable, two options rise to the top:


  1. Refinance your existing mortgage
  2. Get a second mortgage (often through a private lender)


Both options can free up cashflow and dramatically reduce stress. But the best solution depends on your credit, equity, income, and future plans. Below is a clear breakdown so you can choose the right path.


What Is a Mortgage Refinance?


A refinance means replacing your current mortgage with a new one—usually at a higher amount so you can roll your other debts into it.


Best for:

  • Strong or decent credit
  • Steady provable income
  • Lots of equity
  • Wanting the lowest possible rate


Pros:

  • Lowest cost of borrowing
  • One single monthly payment
  • Can drastically increase monthly cashflow


Cons:

  • You must qualify under lender rules
  • You may face penalties if you break your current mortgage
  • Takes longer to approve than private financing


Example:


A homeowner with $620,000 mortgage, good credit, and $80,000 in credit card debt can refinance into a new $700,000 mortgage—wiping out high-interest payments and replacing them with one predictable monthly payment.


What Is a Second Mortgage?


A second mortgage is an additional loan registered behind your first mortgage. In Ontario, these are often private mortgages that rely primarily on the equity in your home—not your income or credit score.


Best for:

  • Bad credit
  • Self-employed income
  • Need funding fast
  • Limited documentation
  • Mortgage penalties make refinancing too expensive


Pros:

  • Fast approvals (24–48 hours)
  • Flexible income verification
  • No need to touch your existing mortgage
  • Ideal for urgent debt consolidation


Cons:

  • Higher rates
  • Usually interest-only payments
  • Short-term solution (1–2 years)


Example:


A homeowner with bruised credit and maxed-out cards can borrow a $75,000 private second mortgage to pay off debt and raise credit scores—then refinance later at better terms.


Private Mortgage Calculator



How to Decide: Refinance vs. Second Mortgage


Choose a Refinance If:

  • Your credit score is 680+
  • You have stable T4 income or 3+ years of solid business financials statements with high net income
  • Breaking your current mortgage won’t cost more than the benefits
  • You want the lowest rate available


Choose a Second Mortgage If:

  • Your credit is below 620
  • You are self-employed and write off expenses
  • You need approval within days, not weeks
  • Your first mortgage penalty is too large to break
  • Your debt has to be paid off immediately


Which Option Saves You More Money?


Here is a simplified Ontario example:


Current Situation:

  • Credit card debt: $55,000 at 19%
  • Line of Credit: $20,000 at 10%
  • Car loan: $14,000 at 8%
  • Monthly payments: ~$2,250 / month
  • Mortgage: $640,000 at 2.59% (3 years left)


Option A: Refinance

  • New mortgage: $720,000 at 5.49%
  • New monthly payment: ~$4,075
  • BUT all other payments disappear
  • Net cashflow improvement: +$450 to +$700/month


Option B: Private Second Mortgage

  • Second mortgage: $90,000 at 10–12% interest-only
  • Payment: $750–$900/month
  • All high-interest debt eliminated
  • Net cashflow improvement: +$1,200–$1,500/month


Private second mortgages often win on cashflow—but refinancing wins long-term on cost.


The right choice depends on your credit, timing, penalties, and equity.


Final Recommendation


If you’re unsure whether to refinance or get a second mortgage, think in two steps:

  1. Solve the immediate cashflow problem
  2. Plan a refinance later if needed


The goal isn’t just paying off debt—it’s protecting your home, repairing credit, and reducing stress.


FREE CANADIAN CALCULATOR

See If Refinancing or a Second Mortgage Saves You More

Use this calculator to compare your current high-interest debt with a new mortgage or second mortgage. Adjust the rate, term, and amount to see how much you could save each month and over the life of your debt.

Frequently Asked Questions

Common questions Canadians ask about this topic, answered in plain language.

It depends on your interest rate, how much equity you have, and whether breaking your current mortgage will trigger a large penalty. Refinancing can work well if today’s rate is similar or lower than what you have now and the penalty to break is reasonable. A second mortgage may make more sense if your existing rate is very good, your penalty is high, or you only need to borrow for a short term.

A second mortgage often makes more sense if you have a low fixed rate on your current mortgage, a big prepayment penalty, or you need funds quickly and don’t fit traditional bank guidelines. In those cases, keeping your first mortgage as-is and adding a smaller second position for debt consolidation can sometimes cost less overall, even if the second mortgage rate is higher.

The main risk is that you’re moving unsecured debt onto your home. If you miss payments, you could eventually face legal action or even the forced sale of your property. There’s also a behaviour risk: if you pay off your credit cards but keep spending the same way, you can end up with both a larger mortgage and new credit card balances.

Most Canadian lenders want you to keep your total lending (first mortgage plus any second mortgage) at or below around 80% of your home’s current value, though private lenders can sometimes go higher. That means if your home is worth $800,000, many lenders will want your total mortgage and home-secured debt to stay at or under $640,000.

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