XEQT vs Paying Off Your Mortgage: Should You Invest or Pay Down Debt First?

A few years back, my partner and I sat at our kitchen table with a spreadsheet open and a pot of coffee going cold. We had just renewed our mortgage and, for the first time, had a bit of breathing room in our budget — about $600 a month we could actually do something with.

The question that kept circling was: do we throw it at the mortgage, or do we invest it in XEQT?

We argued about it for three weeks. I was in the “invest everything” camp. My partner wanted the mortgage gone. Neither of us was wrong, exactly — but we were both missing pieces of the picture. This page is everything I wish I had known before that conversation.

If you are a Canadian homeowner staring at a similar decision, this is the most thorough breakdown you will find. We will cover the math, the psychology, the tax angles, and a real decision framework so you can stop agonizing and start acting.


1. The Core Question: What Is Your “Guaranteed Return”?

Here is the foundational idea behind this whole debate.

When you make an extra mortgage payment, you are not just paying down debt — you are earning a guaranteed, risk-free return equal to your mortgage interest rate.

If your mortgage is at 5%, every dollar of extra principal you pay saves you 5 cents per year in interest, compounded over the remaining amortization. That is a 5% guaranteed return. No volatility. No market timing. No MER. Locked in.

When you invest in XEQT instead, you are chasing a higher but uncertain return. XEQT holds roughly 9,500 stocks across 50+ countries. Since its launch in 2019, it has delivered strong returns, and the underlying global equity market has returned approximately 8-10% per year over long historical periods. But a single year could deliver -30% or +35%. You have to be able to sit through that.

So the question becomes: is the expected extra return from XEQT worth the uncertainty, compared to a guaranteed mortgage paydown return?

The answer depends on four things:

Let us work through each one.


2. The Math at Three Different Mortgage Rates

Let us run the numbers on $500/month for 25 years, comparing extra mortgage payments versus investing that money in XEQT. For XEQT, we will use a conservative long-term assumed return of 8% annually. Mortgage interest savings are calculated as a guaranteed compound return.

Note: These figures are illustrative and rounded. They do not account for inflation, taxes on investment gains (in non-registered accounts), or changes in mortgage rates at renewal. They are meant to show the direction and magnitude of the difference, not a precise forecast.

Scenario A: Mortgage Rate at 3%

This was the world many Canadians lived in from 2020 to 2022. Ultra-low rates.

Approach Monthly amount Assumed return Value after 25 years
Extra mortgage payments $500 3% (guaranteed) ~$243,000
Invest in XEQT (TFSA) $500 8% (expected, tax-free) ~$456,000
Difference     ~$213,000 in favour of XEQT

At 3%, this is not even close. The gap between a 3% guaranteed return and an 8% expected return — compounded over 25 years — is enormous. If your mortgage rate is at or below 4%, the math almost always favours investing, especially in a TFSA where you pay zero tax on the gains.

Scenario B: Mortgage Rate at 5%

This is closer to what many Canadians are renewing into right now.

Approach Monthly amount Assumed return Value after 25 years
Extra mortgage payments $500 5% (guaranteed) ~$298,000
Invest in XEQT (TFSA) $500 8% (expected, tax-free) ~$456,000
Difference     ~$158,000 in favour of XEQT

The gap narrows, but XEQT still comes out ahead on paper. The key word is “on paper.” At 5%, the guaranteed 5% return is genuinely attractive — especially if market volatility makes you nervous. A lot of people at this rate land in the “do both” camp, which we will cover in section 6.

Scenario C: Mortgage Rate at 7%

Higher rates, tighter budgets. Stress test territory.

Approach Monthly amount Assumed return Value after 25 years
Extra mortgage payments $500 7% (guaranteed) ~$380,000
Invest in XEQT (TFSA) $500 8% (expected, tax-free) ~$456,000
Difference     ~$76,000 in favour of XEQT

Now the gap has shrunk to roughly $76,000. And remember — XEQT’s 8% return is not guaranteed. In this scenario, if XEQT delivers closer to 6-7% (entirely possible over any given 25-year window), the mortgage paydown actually wins, or the two strategies tie.

At 7%+, the argument for aggressive mortgage paydown becomes genuinely compelling, especially for risk-averse investors.

Summary table: which approach wins at each rate

Mortgage rate Math winner (TFSA investing) How confident?
3% or below XEQT / TFSA investing Very confident
4% XEQT / TFSA investing Confident
5% XEQT / TFSA investing (narrow) Moderate
6% Toss-up depending on risk tolerance Low
7%+ Mortgage paydown (risk-adjusted) Moderate

3. The Tax-Advantaged Account Factor — This Changes Everything

The comparison above assumes you are investing in a TFSA, which is the most common and powerful account for Canadian retail investors.

The TFSA completely transforms this debate, and here is why: in a TFSA, every dollar of XEQT’s returns — dividends, capital gains, price appreciation — is completely tax-free. You never pay a cent on the growth, no matter how large it becomes.

This is not the case with non-registered accounts, where you owe capital gains tax and income tax on distributions.

TFSA vs non-registered: the tax impact

Let us say XEQT returns 8% annually in each account, and you are in a 43% marginal tax bracket.

Account type Gross return Effective after-tax return (approximate)
TFSA 8% 8% (all tax-free)
Non-registered 8% ~5.5-6.5% (depending on income/gain mix)
RRSP (on withdrawal) 8% 5-6% effective (tax deferred, taxed on exit)

When you invest $500/month in XEQT inside your TFSA instead of making extra mortgage payments, you are comparing your after-tax return to your mortgage rate. At 5% mortgage vs 8% TFSA return, the TFSA wins clearly.

But if your TFSA is already maxed out and you would be investing in a non-registered account, the after-tax return on XEQT drops meaningfully. In that scenario, a mortgage at 5%+ starts looking a lot more competitive.

The RRSP wrinkle

RRSP contributions give you a tax refund today. If you are in a 40% bracket and contribute $500, you get $200 back from the government. That refund can itself go toward the mortgage or toward more XEQT — making the effective cost of the RRSP contribution much lower.

Many Canadians run a hybrid strategy: RRSP contribution in January, use the tax refund for a mortgage lump-sum payment in April. You get the best of both worlds.

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4. The Decision Framework: A Step-by-Step Checklist

Stop reading theory and start making a decision. Work through this checklist in order. Your answer lives somewhere in here.

Step 1: Do you have high-interest debt (credit cards, personal loans above 8%)?

Step 2: Do you have an emergency fund covering 3-6 months of expenses?

Step 3: Does your employer offer an RRSP matching program?

Step 4: Do you have unused TFSA contribution room?

Step 5: What is your mortgage interest rate?

Step 6: How do you feel about market volatility?

Step 7: How close are you to retirement or needing the money?


5. The Psychological Value of Being Mortgage-Free

The math will almost always show that investing in XEQT wins over 25 years — at least at today’s mortgage rates. But personal finance is not just math. If it were, nobody would carry credit card debt.

Being mortgage-free has real value that spreadsheets do not capture.

Freedom from obligation. A paid-off home means your monthly “must pay” expenses drop dramatically. If you lose your job, get sick, or want to take a year off, you can. A large investment portfolio is great, but it requires discipline not to touch it. A paid-off house is a hard asset that nobody can repossess.

Reduced stress. For many Canadians — especially those who grew up without much financial security — carrying a large mortgage is a source of genuine anxiety. If aggressive investing means you lie awake thinking about your portfolio swinging $40,000 in a week, the psychological cost is real and worth accounting for.

A different kind of optionality. A paid-off home in your 50s might let you downsize, unlock equity via a HELOC at favourable rates, or fund retirement without touching your RRSP for years. These are legitimate financial strategies.

The risk of leverage cuts both ways. Choosing to invest instead of paying down the mortgage means you are effectively borrowing money to invest — your mortgage is debt, and instead of retiring it you are putting the money into the market. That leverage can amplify gains, but it can also amplify pain if the market drops 30% the same year your mortgage renews at a higher rate.

None of this means you should sprint toward mortgage freedom at the expense of your TFSA. But if a comfortable financial life matters more to you than a mathematically optimal one, honouring that preference is completely valid.


6. The “Why Not Both?” Approach: Percentage Splits That Actually Work

Most people do not have to choose. They can do both.

Here are some commonly used split strategies based on mortgage rate:

Mortgage rate Suggested split (investing : mortgage) Reasoning
Under 3% 90% investing / 10% mortgage Math is lopsided toward investing
3-4% 80% investing / 20% mortgage Still strongly favours investing
4-5% 70% investing / 30% mortgage Investing likely wins; mortgage also attractive
5-6% 60% investing / 40% mortgage Close call; split reduces regret
6-7% 50% investing / 50% mortgage Genuine toss-up; split is sensible
Above 7% 30% investing / 70% mortgage Guaranteed return is hard to beat

A worked example at 5% mortgage rate

Say you have $800/month extra after bills, emergency fund is funded, and TFSA has room.

Over 25 years, that $560/month in XEQT at 8% grows to approximately $509,000 tax-free. The $240/month in extra mortgage payments saves roughly $85,000-$100,000 in interest over the amortization (rough estimate depending on remaining mortgage term and balance).

Total financial impact: well over $600,000 in combined value created. And you have both a growing investment portfolio and a mortgage that gets paid off noticeably faster. That is not a bad outcome.

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7. The Smith Manoeuvre: Borrowing to Invest (Advanced)

If you want to get into more advanced territory, the Smith Manoeuvre is a Canadian strategy that converts non-deductible mortgage debt into tax-deductible investment debt.

Here is how it works at a high level:

  1. You make your regular mortgage payments, which reduces your principal.
  2. You immediately re-borrow that same amount via a re-advanceable HELOC (a special home equity line of credit).
  3. You invest the borrowed funds into income-producing investments like XEQT.
  4. The HELOC interest becomes tax-deductible because the borrowed money is used for investing.

Over time, you are converting your mortgage into a growing investment loan. The tax deduction on the interest partially offsets the cost of borrowing.

This strategy is real, and for some Canadians in high tax brackets with stable incomes and long time horizons, it can be powerful. But it also involves:

If the Smith Manoeuvre interests you, I strongly recommend reading up on it specifically and talking to a fee-only financial planner before proceeding. It is not a strategy for beginners. For most Canadians, a straightforward TFSA + extra mortgage payment split is more than sufficient and far less risky.


8. When Paying Off the Mortgage Should Be Your Priority

Despite everything above, there are situations where aggressive mortgage paydown is the right call, full stop.

You are within 5 years of retirement. You do not have time to recover from a market crash before you need the money. A paid-off home dramatically reduces your monthly expenses in retirement, which reduces how much you need to draw down from your RRSP/RRIF.

Your mortgage rate just renewed above 6.5%. At this level, the guaranteed return from paydown is competitive with expected equity returns, and far less volatile.

Your income is unstable or variable. Freelancers, entrepreneurs, and commission-based earners face real cash-flow risk. A paid-off or nearly-paid-off mortgage dramatically lowers your monthly obligations and reduces the risk that a bad income year forces you to sell investments at the worst time.

You are deeply uncomfortable with market volatility. This is not weakness. It is self-knowledge. If you know you will panic-sell during a crash, a guaranteed return is genuinely better for you than a theoretical higher return you will never actually capture.

You have already maxed your TFSA and RRSP. If your tax-advantaged room is full and you would be investing in a non-registered account, the tax drag on XEQT returns makes the comparison much tighter. At mortgage rates above 5%, mortgage paydown starts winning.


9. Practical Tips for Running Your Own Numbers

A few tools and rules of thumb to help you calculate your own situation:

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The Bottom Line

Here is the simple version of everything above:

If your mortgage rate is under 5% and you have unused TFSA room → max your TFSA with XEQT first. The math is decisively in your favour, and the tax-free compounding over decades is a genuinely powerful wealth-builder. Do not leave TFSA room on the table.

If your mortgage rate is 5-6% → split your extra dollars. Put 60-70% into XEQT via TFSA/RRSP and 30-40% toward extra mortgage payments. You capture most of the investment upside while also making real progress toward mortgage freedom.

If your mortgage rate is above 6-7% → prioritize mortgage paydown. The guaranteed return starts to compete seriously with expected equity returns. Invest enough to capture any employer match, keep your TFSA ticking over, and put the rest on the mortgage.

Always: emergency fund first, high-interest debt first, employer match first. Everything else is secondary.

Back at our kitchen table with the cold coffee and the spreadsheet, we eventually landed on a 70/30 split — investing first, extra mortgage payments second. Our mortgage rate at the time was 4.2%, our TFSA had plenty of room, and we knew we were both the type to leave investments alone through volatility. For us, it was the right call.

Your situation may be different. But now you have the framework to figure out your own right answer — and more importantly, the confidence to act on it.


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