What is the Smith Manoeuvre?

The Smith Manoeuvre is a Canadian debt-conversion strategy that uses a readvanceable mortgage to borrow against paid-down principal and invest in a non-registered account.

Is HELOC interest tax deductible in Canada?

HELOC interest may be deductible when borrowed money is used to earn income from eligible investments. Confirm your specific implementation with a CPA.

Should I use DRIP or cash dividends with the Smith Manoeuvre?

Cash dividends are often used to prepay the mortgage and create more HELOC room, while DRIP can compound the portfolio but may slow mortgage conversion.

Can I use ETFs in a Smith Manoeuvre portfolio?

ETFs can be used, but return of capital and adjusted cost base tracking can complicate interest deductibility records. Confirm treatment with a CPA.

What is the Income Coverage Milestone?

The Income Coverage Milestone is the year when projected SM portfolio income is enough to cover projected annual HELOC interest.

Tax refund/yr$4,159

Net benefit$420,680

Dividend tax bleed$2,522

Portfolio at payoff$327,784

Tax refund/yr$4,159

Net benefit$420,680

Prospyr calculator

Smith Manoeuvre Calculator Canada

See when borrowed investing, deductible HELOC interest, tax refunds, and dividend income can turn mortgage conversion into a self-funding income engine.

Start with Basic for a quick estimate. Advanced adds DRIP, tax, and strategy assumptions.

Inputs

Seven starter fields. Advanced assumptions stay tucked away until you want them.

Home Value

Mortgage Balance

Mortgage Rate

Use your actual rate, not the posted rate.HELOC rate, typically prime + 0.5%

Amortization Remaining: 20 years

11530

Province

Annual Income

Used to estimate your marginal tax rate and annual HELOC interest refund.

Estimated marginal rate: 37.2% (ON 2026)

HELOC room at 80% LTV : $140,000

Calculate your marginal tax rate

Advanced assumptions

Optional detail for DRIP behavior, tax drag, and accelerators. Basic results above still use the same core mortgage and HELOC math.

Investment Type

Dividend Yield

Dividend Growth Rate

Cash dividends can prepay the mortgage and increase HELOC room. DRIP can build portfolio value faster but may slow conversion.Cash

If on, HELOC interest is added to the HELOC balance instead of treated as a cash-flow payment.Off

Home Appreciation Rate

SM Accelerator

Important: The Smith Manoeuvre is a legal Canadian tax strategy, but its benefits depend on your specific circumstances, risk tolerance, and proper implementation. HELOC interest is deductible only when borrowed funds are used to earn income from eligible investments. Confirm deductibility and recordkeeping with a CPA before acting. This is informational only, not licensed financial advice. Consult a licensed financial advisor, CPA, and mortgage broker before implementing the Smith Manoeuvre.

Without SM

$318,702

Total interest paid

Mortgage payoff timeline20 years

Net worth at payoff$800,000

With SM

Income Coverage Milestone

Year 9

Accelerated payoff timeline13 years, 6 months

Total deductible HELOC interest$128,131

Annual tax refund / cumulative$4,159 / $47,613

Portfolio value at payoff$327,784

Net worth at payoff$1,220,680

Modeled SM net benefit under entered assumptions

$420,680

Final coverage ratio : 1.35x

The SM generates a modest benefit at your income level and current rates. The Income Coverage Milestone is reached in 9 years, but the net benefit of $420,680 may not justify the complexity for everyone. Consider the stress test in Advanced mode.

This is informational only, not licensed financial advice.

Model assumptions used

HELOC room

$140,000 at 80% LTV

Tax rate

37.2 estimated marginal rate

Core rates

5.4% mortgage / 7.2% HELOC

Deductibility

Requires proper use of funds and recordkeeping.

Result explainer

What the Smith Manoeuvre result means

What this means

In this modeled scenario, the Income Coverage Milestone is Year 9 and the modeled SM net benefit under entered assumptions is $420,680.

Why this result happened

Mortgage conversion is driven by a 5.4% mortgage rate, 7.2% HELOC rate, and $140,000 of modeled HELOC room.
The tax-refund estimate uses ON income assumptions and an estimated 37.2% marginal rate.
Portfolio income uses a 5.0% dividend yield assumption with cash dividends modeled instead of DRIP.

What could change this

Interest rates, tax rates, HELOC room, and mortgage payment timing can materially change the result.
Dividend cuts, market drops, return of capital, and record-keeping issues can affect coverage and deductibility.
Borrowed investing magnifies gains and losses, so stress-test outputs matter as much as the base case.

Next number to check

Open Tax Bracket Calculator

Verify the marginal tax-rate assumption before reading the modeled tax refund as a planning anchor.

This explains a modeled Smith Manoeuvre scenario. It is not financial, tax, legal, mortgage, or investment advice.

See all three debt strategies side-by-side Model DRIP compounding on your SM portfolio Calculate your marginal tax rate

The Smith Manoeuvre requires a non-registered account. Open one with Questrade: no account minimums, commission-free ETFs, and DRIP-eligible Canadian dividend stocks.

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Freshness and methodology

Last reviewed

April 2026 with 2026 CRA planning inputs.

Methodology

Smith Manoeuvre projections use standard mortgage amortization, readvanceable HELOC capacity, 2026 marginal tax-rate schedules, dividend income assumptions, and a year-by-year Income Coverage Milestone.

Source

CRA official reference →

Updated for 2026 CRA limits · Last verified April 2026

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