How to Use a HELOC to Build Wealth — The Smith Manoeuvre Explained

The Smith Manoeuvre is a Canadian wealth-building strategy that converts non-deductible mortgage interest into tax-deductible investment loan interest — while simultaneously building an investment portfolio. It’s controversial, complex, and powerful when done correctly.

How It Works — Simply Explained

1. You have a mortgage and a Home Equity Line of Credit (HELOC) against your home
2. Each month, you make your regular mortgage payment (this reduces principal)
3. Immediately re-borrow that same principal amount from your HELOC
4. Invest the borrowed HELOC funds in income-producing investments (dividend stocks, REITs)
5. The HELOC interest is now tax-deductible because it’s used for investment purposes
6. Dividends from investments help pay HELOC interest, potentially at no net cost

The Math Behind It

On a $500,000 mortgage at 5.5%, you’re paying ~$27,500/year in interest that gives you no tax benefit. The Smith Manoeuvre converts a growing portion of this into tax-deductible investment interest, potentially saving thousands in income tax annually — while building an investment portfolio worth $200,000–400,000 over 25 years.

The Risks — This Is Not For Everyone

• Leverage amplifies both gains AND losses — your investments must outperform your borrowing rate
• If investments drop significantly, you still owe the HELOC balance
• Requires discipline — you must not use the HELOC for anything except investments
• Tax rules are complex — CRA has denied deductions where rules weren’t followed precisely

Is It Right For You?

The Smith Manoeuvre makes sense if: you have a mortgage with readvanceable HELOC, stable employment, a long time horizon (15+ years), and can stomach investment volatility without panic selling. Consult a fee-only financial advisor and tax accountant before implementing.