Pay Down Your Mortgage or Invest? How to Decide

It’s one of the most common questions I hear from Saskatchewan homeowners: “I have some extra cash each month — should I put it toward my mortgage or invest it?” It’s a great question, and the honest answer is that it depends on your specific situation.

Both options can build your wealth over time, but the right choice comes down to your mortgage rate, your risk tolerance, and your overall financial goals. In this guide, I’ll walk you through how to compare both options so you can make a confident decision that fits your life.

According to Statistics Canada, the average Canadian household carries roughly $180,000 in mortgage debt. How you manage that debt alongside your investment strategy can make a significant difference over the life of your loan.

Understanding the Math Behind the Decision

The core of this decision comes down to one comparison: your mortgage interest rate versus your expected investment return.

If your mortgage rate is 5% and you can reasonably expect a 7% return on investments over the long term, investing comes out ahead — at least on paper. But real life isn’t always that straightforward.

The After-Tax Comparison

Here’s what many Saskatchewan homeowners miss: investment returns are often taxable, while mortgage interest savings are tax-free.

• Mortgage prepayment: Every extra dollar you put toward your mortgage saves you interest at your mortgage rate. That savings is guaranteed and tax-free.
• Investing: Returns vary year to year, and depending on the account type (RRSP, TFSA, or non-registered), you may owe taxes on gains.

For example, if your mortgage rate is 5% and your investments earn 7% in a non-registered account, you might only keep 4.5–5.5% after taxes — making the two options much closer than they first appear.

Use our mortgage calculator to see how extra payments could shorten your amortization and reduce total interest.

When Paying Down Your Mortgage Makes More Sense

There are several scenarios where accelerating your mortgage payments is the smarter move for Saskatchewan homeowners.

You Have a High Mortgage Rate

If your mortgage rate is above 5–6%, the guaranteed return from paying it down is hard to beat with investments — especially after accounting for taxes and risk. A guaranteed 6% return is arguably better than a hoped-for 7% that could swing to -10% in a bad year.

You Value Peace of Mind

There’s a real psychological benefit to being mortgage-free sooner. For many homeowners here in Saskatchewan, the security of owning their home outright matters more than potentially higher investment returns. That peace of mind has real value, even if it’s hard to put a number on it.

You’re Close to Retirement

If retirement is on the horizon, reducing your monthly obligations by paying off your mortgage can be a smart strategy. Lower fixed costs in retirement mean your savings and pension stretch further.

Your Prepayment Privileges Allow It

Most mortgages in Canada allow you to make annual lump-sum payments (typically 10–20% of the original balance) and increase your regular payments without penalty. Check your mortgage terms — if you have these privileges, putting extra cash toward your mortgage is straightforward and cost-free.

When Investing Makes More Sense

On the other hand, there are clear situations where investing your extra dollars is the better financial move.

You Have a Low Mortgage Rate

If you locked in a rate below 3–4%, the hurdle for investments to outperform is relatively low. Historically, a diversified portfolio has returned around 6–8% annually over long periods. With a low mortgage rate, the math favours investing.

You Haven’t Maxed Out Your TFSA or RRSP

This is a big one. If you have contribution room in your Tax-Free Savings Account (TFSA) or RRSP, the tax advantages can tip the scales toward investing.

• TFSA: All growth is completely tax-free — no tax on withdrawals
• RRSP: Contributions reduce your taxable income now, and you get a tax refund that you can reinvest or use toward your mortgage

Saskatchewan residents can use RRSP contributions strategically — the tax refund alone can be redirected as a lump-sum mortgage payment, giving you the best of both worlds.

You Have a Long Time Horizon

If you’re in your 20s or 30s with decades before retirement, time is your greatest asset. The power of compound returns means that even modest monthly contributions to an investment account can grow significantly over 20–30 years.

Your Employer Offers RRSP Matching

If your employer matches RRSP contributions, that’s an immediate 100% return on your money. Always take the full match before directing extra funds anywhere else — including your mortgage.

The Hybrid Approach: Why Not Both?

Here’s what I often recommend to Saskatchewan homeowners who ask me this question: you don’t have to choose one or the other.

A balanced approach might look like this:

1. Max out any employer RRSP match — it’s free money
2. Make your regular mortgage payments plus modest extra payments using your prepayment privileges
3. Contribute to your TFSA with remaining funds for tax-free growth
4. Direct any tax refunds from RRSP contributions as lump-sum mortgage payments

This strategy lets you chip away at your mortgage faster while still building an investment portfolio. It’s not about perfection — it’s about making progress on both fronts.

Many financial planners suggest that Saskatchewan homeowners with mortgage rates between 4–5% consider splitting extra funds 50/50 between mortgage prepayments and investments.

What About Using Home Equity to Invest?

Some homeowners consider refinancing their mortgage to pull out equity and invest it — a strategy sometimes called the Smith Manoeuvre. While this can work in certain situations, it adds risk and complexity.

Before going this route, you need to understand:

• The costs involved: Refinancing comes with penalties, legal fees, and appraisal costs. Read more about understanding mortgage penalties in Canada
• The risk: You’re borrowing against your home to invest. If markets drop, you still owe the mortgage
• Your comfort level: Leveraged investing isn’t for everyone, and that’s okay

If you’re curious about accessing your equity, my refinancing service can help you evaluate whether it makes financial sense for your situation.

Common Mistakes to Avoid

Before you commit to either strategy, watch out for these pitfalls:

• Ignoring high-interest debt: If you carry credit card balances or car loans at 8–20% interest, pay those off first. Neither mortgage prepayment nor investing will outperform eliminating expensive debt
• Not having an emergency fund: Keep 3–6 months of expenses set aside before aggressively paying down your mortgage or investing. Life in Saskatchewan can throw surprises — job changes, home repairs, vehicle issues
• Forgetting about mortgage renewal: Your strategy might change when your mortgage renewal comes up. If rates rise significantly, you may want to shift toward paying down the balance before renewal
• Making emotional decisions: Don’t panic-sell investments in a downturn or rush to pay off a low-rate mortgage out of fear. Stick to your plan

How Your Mortgage Type Affects the Decision

Whether you chose a fixed or variable rate mortgage also plays into this decision.

• Fixed rate: You know exactly what your interest cost is, making the comparison to expected investment returns more straightforward
• Variable rate: Your rate may change, which adds uncertainty. If rates are rising, prioritizing mortgage paydown can protect you from increasing costs

Understanding how mortgage rates work helps you make a more informed comparison between your borrowing cost and potential investment returns.

Get Expert Mortgage Guidance in Saskatchewan

Deciding between paying down your mortgage and investing is a personal decision — and it doesn’t have to be all-or-nothing. As a licensed mortgage associate in Saskatchewan, I can help you understand your mortgage terms, prepayment options, and how refinancing might fit into your financial plan.

My refinancing service includes:

• Break-even analysis — know exactly when refinancing pays off
• Equity assessment — understand how much you can access
• Rate comparison — shop multiple lenders for your best option
• Cost transparency — understand all fees before you commit
• Alternative options — explore HELOCs, second mortgages, and blend-and-extend

Whether you want to accelerate your mortgage payoff, explore investment strategies using your equity, or simply understand your options — contact me today for a free consultation!

Related Articles

• When Does Refinancing Your Mortgage Make Sense? — Calculate if refinancing is right for your situation
• Understanding Mortgage Rates — Learn how rates are determined and what affects your rate
• Fixed vs. Variable Rate Mortgages — Compare mortgage types and choose the right one
• Understanding Mortgage Penalties in Canada — Know the costs before breaking your mortgage