Quick answer A refinance replaces or restructures the existing mortgage. A HELOC gives revolving access to home equity. A second mortgage adds another loan behind the first mortgage. The most affordable looking  option is not always the best one — the right choice depends on how much you need, how long you need it, your existing first-mortgage rate, qualification and the exit plan.

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The $70,000 Problem: Three Ways to Solve It, Three Very Different Outcomes

Imagine a homeowner owes $520,000 on a first mortgage and has $70,000 spread across credit cards, a line of credit and a vehicle loan. The home is worth about $950,000.

The homeowner asks a simple question: “Can I use my home equity to clean this up?”

The answer may be yes. But the more important question is: which structure solves the problem without creating a bigger one?

A refinance, HELOC and second mortgage can all access home equity, but they behave very differently. Treating them as interchangeable is one of the most common mistakes homeowners make.

Option 1: Refinance the First Mortgage

A refinance replaces or restructures the existing mortgage. The borrower may increase the mortgage amount, change the amortization, consolidate debts or pull out equity, subject to lender approval.

This can work well when the borrower needs a larger amount and the economics of replacing the existing mortgage make sense. But the penalty for breaking the current mortgage, the new rate, legal or appraisal costs, and the total interest over the new amortization all matter.

A refinance may fit when:

• You need a larger lump sum.
• You want one structured payment instead of several debts.
• Your current mortgage penalty is manageable.
• The new overall mortgage structure improves cash flow or long-term planning.
• You qualify under the new lender’s underwriting rules.

Option 2: Add a HELOC

A home equity line of credit is revolving credit secured by the home. You can draw, repay and reuse funds up to the approved limit. FCAC states that a HELOC may generally be available up to 65% of the home’s value, while overall home-equity borrowing is typically constrained by broader loan-to-value limits.

The attraction is flexibility. The risk is also flexibility. Because the balance can be reused and the rate is usually variable, a HELOC works best when the borrower has a clear purpose and repayment plan.

A HELOC may fit when:

• You do not need all the money at once.
• The expense will occur in stages, such as renovations.
• You want to preserve the existing first mortgage.
• You can handle a variable interest rate and changing payment cost.
• You are disciplined enough not to treat the available limit as extra income.

Option 3: Add a Second Mortgage

A second mortgage is a separate loan registered behind the first mortgage. Because the second lender is paid after the first lender if something goes wrong, second-mortgage pricing is normally higher than first-mortgage pricing.

The main reason to consider one is that it may allow the borrower to preserve an attractive existing first mortgage instead of breaking it. It can also be useful when a borrower needs short-term equity access but does not fit a traditional refinance today.

A second mortgage may fit when:

• Your existing first mortgage has a low rate or large break penalty that you want to preserve.
• You need a defined lump sum rather than revolving credit.
• The need is temporary and there is a realistic exit plan.
• A bank refinance is not currently available because of income, credit or timing.

Side-by-Side Comparison

Option	What happens to first mortgage?	Access	Typical pricing behaviour	Best fit
Refinance	Replaced or restructured	Lump sum / larger mortgage	Usually lower than a second mortgage; depends on product and borrower	Large restructuring or debt consolidation
HELOC	Often remains in place	Revolving, reusable	Usually variable	Ongoing or staged access to equity
Second mortgage	First mortgage remains	Defined lump sum	Usually higher because lender is in second position	Short-term need or preserving first mortgage

How Much Home Equity Can You Actually Use?

FCAC says financial institutions may usually allow total borrowing secured by the home up to about 80% of the property value. For a standalone HELOC, the revolving portion may generally be up to 65% of the home’s value. The actual amount available is reduced by mortgages and other debt already secured against the property.

Example: if a home is worth $950,000, 80% is $760,000. If the first mortgage balance is $520,000, the theoretical remaining secured-borrowing room is $240,000 before lender-specific qualification, product rules, fees and other restrictions are considered.

Important Equity alone does not guarantee approval. Income, credit, property type, debt servicing, lender policy and the purpose of funds can all affect what is actually available.

Example: High-Interest Debt, But a Low First-Mortgage Rate

Consider an homeowner, “Priya.” Her home is worth $950,000. She owes $520,000 on a first mortgage at a rate she does not want to lose. She also has $70,000 of higher-interest unsecured debt and wants to improve monthly cash flow.

At first, refinancing everything into one mortgage sounds clean. But if breaking the first mortgage creates a large penalty and replaces the entire $520,000 balance at a meaningfully higher rate, the more affordable-looking debt-consolidation plan may not actually be the most affordable overall.

A proper review would compare at least three paths:

1. Refinance the first mortgage and roll the $70,000 into the new balance.
2. Keep the first mortgage and add a HELOC, if qualification and product limits allow.
3. Keep the first mortgage and use a short-term second mortgage, with a defined exit strategy.

The decision should compare the total cost, not just the rate on the new $70,000. That includes the first-mortgage penalty, new rate on the existing balance, legal/appraisal costs, monthly payment change and how long the borrower expects to carry the new debt.

Questions to Ask Before Touching Home Equity

4. How much money do I actually need?
5. Do I need it once or repeatedly over time?
6. What is the penalty to break my current mortgage?
7. What rate am I giving up on the existing first mortgage?
8. What fees apply to each option?
9. Will I still qualify if the mortgage amount increases?
10. How will the new debt be repaid?
11. What happens if my income or property value changes before the exit plan is complete?

FAQs

Use Home Equity as a Strategy, Not an Emergency Button

The biggest mistake is choosing a product before understanding the problem. A homeowner who needs $25,000 for staged renovations has a different need from someone trying to restructure $100,000 of unsecured debt. The mortgage solution should reflect that difference.

Team Done Mortgage can review the existing mortgage, penalty, equity, income and purpose of funds and compare refinance, HELOC and second-mortgage options side by side. Every application remains subject to lender qualification, approval and applicable terms and conditions.

Sources and Further Reading

Financial Consumer Agency of Canada – Borrowing against home equity

Financial Consumer Agency of Canada – Home equity lines of credit

OSFI – Clarification on HELOC and residential secured lending LTV limits