Second Mortgage vs. HELOC in Ontario:Which One Should You Actually Use?
Both unlock home equity. Both sit behind your 1st mortgage. But they're priced, qualified, and structured very differently — and using the wrong one can cost you tens of thousands.
HELOC
A revolving line at prime + 0.5%–1% (~6.45%–6.95% in 2026). Cheap, flexible — but you must qualify under bank rules.
Best when your income and credit are strong and you want ongoing access to equity.
Second Mortgage
A fixed lump sum from 9.24% registered behind your 1st mortgage. Qualifies on equity, not income.
Best when the bank declined you, you're self-employed, or you need a defined amount fast.
Decision Matrix
| Feature | HELOC | 2nd Mortgage |
|---|---|---|
| Interest rate (April 2026) | 6.45% – 6.95% (variable) | 9.24% – 11.49% (fixed) |
| Payment structure | Interest-only on drawn balance | Interest-only or amortizing |
| Qualification basis | Income + credit + property | Property equity + exit strategy |
| Income verification | Full T1s + NOAs required | Often none required |
| Credit score required | 650+ typical bank minimum | No minimum — equity drives approval |
| Maximum CLTV | Up to 65% (re-advanceable) or 80% combined | Up to 85% CLTV |
| Funding speed | 2 – 4 weeks | 5 – 10 business days |
| Lender/setup fees | $0 – $500 | 1% – 2% of loan + legal |
| Term flexibility | Open-ended revolving | Fixed term 12 – 24 months |
Choose a HELOC When…
- Your credit score is 680+ and your income is fully documented
- You want ongoing access to equity (renovations over months, periodic business cash flow)
- You can wait 2–4 weeks for setup
- You'll only carry a balance some of the time
Choose a 2nd Mortgage When…
- The bank declined you — credit hiccup, self-employed write-offs, recent change of employment
- You need a defined lump sum now (debt consolidation, tax arrears, property closing)
- Speed matters — you need funding in 5–10 days, not 4 weeks
- You'll refinance both 1st + 2nd into a new A-lender mortgage within 12–24 months
- Your existing 1st mortgage is locked in and you don't want to break it
Cost Comparison: $100K Equity Take-Out
Scenario: Mississauga homeowner needs $100K for renovation, 12 months.
HELOC @ 6.75%: $100K × 6.75% = ~$6,750 interest. Setup ~$300. Total ≈ $7,050.
Private 2nd @ 9.49% + 1.5% lender + 1.5% broker: $9,490 interest + $3,000 fees + $2,000 legal. Total ≈ $14,490.
Difference: ~$7,440 over 12 months. But if you don't qualify for the HELOC, the 2nd mortgage is your only path — and the alternative is often 19.99% credit card debt at $20K/year on $100K.
FAQs
What is the difference between a second mortgage and a HELOC in Ontario?
A second mortgage is a fixed-amount lump-sum loan registered behind your existing 1st mortgage, with fixed interest-only or amortizing payments. A HELOC (Home Equity Line of Credit) is a revolving line — borrow, repay, and re-borrow up to your limit — typically at prime + 0.5% to 1%. HELOCs are cheaper but require full income and credit qualification with your bank. Second mortgages qualify on equity, not income.
Which is cheaper — a HELOC or a second mortgage?
A bank HELOC is almost always cheaper. In April 2026, HELOCs price around 6.45%–6.95% (prime + 0.5%–1.0%) vs. private second mortgages from 9.24%. The trade-off: HELOCs require full bank qualification — income, credit, debt service ratios. If you don't qualify for a HELOC, a 2nd mortgage is the alternative.
Can I qualify for a HELOC if I'm self-employed?
Sometimes. Most banks require 2 full years of T1 General income tax returns plus Notice of Assessments. If you write off heavily, your net income may be too low. In that case, a private 2nd mortgage is the practical equity-access path.
Can I have both a HELOC and a second mortgage?
Yes — a HELOC and a second mortgage can co-exist as long as the combined loan-to-value (CLTV) stays within the second-mortgage lender's limit (usually 80%–85%). However, a re-advanceable HELOC behind a 1st mortgage typically blocks a registered 2nd mortgage. Talk to a broker before stacking.
How fast can I get a second mortgage in Ontario?
Most Ontario private 2nd mortgages fund in 5–10 business days. Approval is typically 24–48 hours once we have your mortgage statement, property tax bill, and appraisal. Bank HELOCs take 2–4 weeks because of the full income/credit underwrite.
What can I use a second mortgage for?
Anything — debt consolidation, renovation, business capital, investment property down payment, tax arrears, school tuition, or bridging a divorce settlement. Lenders don't restrict use of funds the way some banks do with HELOCs.
Related reading
If your goal is to reduce interest rather than pull cash out, there is a third structure worth understanding: how a mortgage offset account works in Canada — and how it compares to both a HELOC and a readvanceable mortgage.
Not sure which one fits your file?
We'll run both scenarios with real numbers — your equity, rate, fees — in a free 15-minute call.