What you Need to Know About the Latest Mortgage Rule Changes

Shanna Davis • October 17, 2017

If you’ve tuned into the news today, you’ve probably heard that there are new mortgage rules coming into effect on January 1st. 2018. Over the next week you’ll most likely hear a lot of commentary on whether these rules are good, bad, necessary, or unnecessary. And no doubt someone somewhere will come to the conclusion that no one will ever get a mortgage again, and that the housing market in Canada is going to come crashing down around us. Please remember that it’s the media’s job to write headlines and attract eyes, so they tend to sensationalize everything. Take what you hear with a grain of salt. Mortgages will still be written, and houses will still be bought.

At the end of the day, these new rules (outlined below) will come into play, and there’s nothing we can do to change the government’s mind. So how do we respond? Well… as it becomes increasingly difficult to qualify for a mortgage, your goal should be to work with a mortgage professional that gives you more choices. Instead of working with a single institution; having access to a single line of mortgage products, when you work with a mortgage broker, you have access to many different lenders, with a wide variety of choices.

As mortgage rules tighten, your goal should be to find as much flexibility as possible, you do this by working with a mortgage broker. So if you have any questions about your mortgage, please don’t hesitate to contact me anytime, I’d love to have a conversation with you.

Okay, so on to the changes… the biggest change to the rules surrounding mortgage qualification is that a requirement to stress test each mortgage will be now applied to all borrowers, instead of just borrowers who have less than a 20% downpayment. Qualification for all mortgages will now be made at a minimum qualifying rate which is the greater of  the five-year benchmark rate published by the Bank of Canada or the contractual mortgage rate +2%. 

OSFI (The Office of the Superintendent of Financial Institutions) released their final version of their new guidelines for the mortgage industry. Below is the news release from OSFI. called: OSFI is reinforcing a strong and prudent regulatory regime for residential mortgage underwriting

News Release

For Immediate Release

OTTAWA – October 17, 2017 – Office of the Superintendent of Financial Institutions Canada

Today the Office of the Superintendent of Financial Institutions Canada (OSFI) published the final version of Guideline B-20 −  Residential Mortgage Underwriting Practices and Procedures. The revised Guideline, which comes into effect on January 1, 2018, applies to all federally regulated financial institutions.

The changes to Guideline B-20 reinforce OSFI’s expectation that federally regulated mortgage lenders remain vigilant in their mortgage underwriting practices. The final Guideline focuses on the minimum qualifying rate for uninsured mortgages, expectations around loan-to-value (LTV) frameworks and limits, and restrictions to transactions designed to circumvent those LTV limits.

OSFI is setting a new minimum qualifying rate, or “stress test,” for uninsured mortgages.

  • Guideline B-20 now requires the minimum qualifying rate for uninsured mortgages to be the greater of  the five-year benchmark rate published by the Bank of Canada or the contractual mortgage rate +2%.

OSFI is requiring lenders to enhance their loan-to-value (LTV) measurement and limits so they will be dynamic and responsive to risk.

  • Under the final Guideline, federally regulated financial institutions must establish and adhere to appropriate LTV ratio limits that are reflective of risk and are updated as housing markets and the economic environment evolve.

OSFI is placing restrictions on certain lending arrangements that are designed, or appear designed to circumvent LTV limits.

  • A federally regulated financial institution is prohibited from arranging with another lender a mortgage, or a combination of a mortgage and other lending products, in any form that circumvents the institution’s maximum LTV ratio or other limits in its residential mortgage underwriting policy, or any requirements established by law.

Quote

“These revisions to Guideline B-20 reinforce a strong and prudent regulatory regime for residential mortgage underwriting in Canada,” said Superintendent Jeremy Rudin.

Quick Facts

  • On July 7, 2017, OSFI published draft revisions to Guideline B-20 –  Residential Mortgage Underwriting Practices and Procedures. The consultation period ended on August 17, 2017.
  • OSFI received more than 200 submissions from federally regulated financial institutions, financial industry associations, other organizations active in the mortgage market, as well as the general public.
  • The cover letter includes an unattributed summary of the comments and an explanation of how these issues were dealt with in the final Guideline B-20.
  • Following publication of Guideline B-20 OSFI plans to assess Guideline B-21 −  Residential Mortgage Insurance Underwriting Practices and Procedures  for consequential amendments.

Associated Links

About OSFI

The Office of the Superintendent of Financial Institutions  Canada (OSFI) is an independent agency of the Government of Canada, established in 1987 to protect depositors, policyholders, financial institution creditors and pension plan members, while allowing financial institutions to compete and take reasonable risks.

SHANNA DAVIS

Mortgage Broker

CONTACT ME

RECENT POSTS

What Is a Cashback Mortgage and How Does It Work?

By Shanna Davis • May 21, 2026
Cashback Mortgages: Are They Worth It? Here’s What You Need to Know If you’ve been exploring mortgage options and come across the term cashback mortgage , you might be wondering what exactly it means—and whether it’s a smart move. Let’s break it down in simple terms. What Is a Cashback Mortgage? A cashback mortgage is just like a regular mortgage—but with one extra feature: you receive a lump sum of cash when the mortgage closes . This cash is typically: A fixed amount , or A percentage of the total mortgage , usually between 1% and 7% , depending on your mortgage term and lender. The money is tax-free and paid directly to you on closing day. What Can You Use the Cashback For? There are no restrictions on how you use the funds. Here are some common uses: Covering closing costs Buying new furniture Renovations or home upgrades Paying off high-interest debt Boosting your cashflow during a tight transition Whether it’s to help you settle in or catch up financially, cashback can offer a helpful buffer— but it comes at a cost . The True Cost of a Cashback Mortgage Here’s the part many people overlook: cashback mortgages come with higher interest rates than standard mortgages. Why? Because the lender is essentially advancing you a small loan upfront—and they’re going to make that money back (and then some) through your mortgage payments. So while the upfront cash feels like a bonus, you’ll pay more in interest over time to have that convenience. Breaking Down the Numbers It’s hard to give a blanket answer about how much more you’ll pay since it depends on: Your interest rate The cashback amount The mortgage term Your payment schedule This is why it’s important to run the numbers with a mortgage professional who can help you compare this option with others based on your personal financial situation. Are You Eligible for a Cashback Mortgage? Not everyone qualifies. Cashback mortgages generally come with stricter requirements . Lenders often want to see: Excellent credit history Strong, stable income Low debt-to-income ratio If your mortgage file includes anything “outside the box”—like being self-employed or recently changing jobs—qualifying for a cashback mortgage might be tough. What If You Need to Break the Mortgage? This is one of the biggest risks with cashback mortgages. If your circumstances change and you need to break your mortgage early, you could be on the hook for: Paying back some or all of the cashback you received, and A prepayment penalty (typically the interest rate differential or 3 months’ interest—whichever is higher) That can be a very expensive combination. So if there’s even a chance you might need to sell, refinance, or move before your term is up, a cashback mortgage might not be the best fit. Should You Consider a Cashback Mortgage? Maybe—but only with eyes wide open. Cashback mortgages can be helpful in the right scenario, but they’re not free money. They’re a lending tool that benefits the lender , and the key is knowing exactly what you’re agreeing to. Final Thoughts: Talk to an Expert First Choosing the right mortgage isn’t just about the lowest rate or the biggest perk—it’s about making a choice that fits your whole financial picture. If you’re considering a cashback mortgage, or just want to explore all your options, let’s talk. As an independent mortgage professional , I can help you weigh the pros and cons of various products, so you can make a confident, informed decision. Have questions? I’d be happy to help—reach out anytime.

Mortgage Approval 101: GDS & TDS Explained

By Shanna Davis • May 7, 2026
Can You Afford That Mortgage? Let’s Talk About Debt Service Ratios One of the biggest factors lenders look at when deciding whether you qualify for a mortgage is something called your debt service ratios. It’s a financial check-up to make sure you can handle the payments—not just for your new home, but for everything else you owe as well. If you’d rather skip the math and have someone walk through this with you, that’s what I’m here for. But if you like to understand how things work behind the scenes, keep reading. We’re going to break down what these ratios are, how to calculate them, and why they matter when it comes to getting approved. What Are Debt Service Ratios? Debt service ratios measure your ability to manage your financial obligations based on your income. There are two key ratios lenders care about: Gross Debt Service (GDS) This looks at the percentage of your income that would go toward housing expenses only. 2. Total Debt Service (TDS) This includes your housing costs plus all other debt payments—car loans, credit cards, student loans, support payments, etc. How to Calculate GDS and TDS Let’s break down the formulas. GDS Formula: (P + I + T + H + Condo Fees*) ÷ Gross Monthly Income Where: P = Principal I = Interest T = Property Taxes H = Heat Condo fees are usually calculated at 50% of the total amount TDS Formula: (GDS + Monthly Debt Payments) ÷ Gross Monthly Income These ratios tell lenders if your budget is already stretched too thin—or if you’ve got room to safely take on a mortgage. How High Is Too High? Most lenders follow maximum thresholds, especially for insured (high-ratio) mortgages. As of now, those limits are typically: GDS: Max 39% TDS: Max 44% Go above those numbers and your application could be declined, regardless of how confident you feel about your ability to manage the payments. Real-World Example Let’s say you’re earning $90,000 a year, or $7,500 a month. You find a home you love, and the monthly housing costs (mortgage payment, property tax, heat) total $1,700/month. GDS = $1,700 ÷ $7,500 = 22.7% You’re well under the 39% cap—so far, so good. Now factor in your other monthly obligations: Car loan: $300 Child support: $500 Credit card/line of credit payments: $700 Total other debt = $1,500/month Now add that to the $1,700 in housing costs: TDS = $3,200 ÷ $7,500 = 42.7% Uh oh. Even though your GDS looks great, your TDS is just over the 42% limit. That could put your mortgage approval at risk—even if you’re paying similar or higher rent now. What Can You Do? In cases like this, small adjustments can make a big difference: Consolidate or restructure your debts to lower monthly payments Reallocate part of your down payment to reduce high-interest debt Add a co-applicant to increase qualifying income Wait and build savings or credit strength before applying This is where working with an experienced mortgage professional pays off. We can look at your entire financial picture and help you make strategic moves to qualify confidently. Don’t Leave It to Chance Everyone’s situation is different, and debt service ratios aren’t something you want to guess at. The earlier you start the conversation, the more time you’ll have to improve your numbers and boost your chances of approval. If you're wondering how much home you can afford—or want help analyzing your own GDS and TDS—let’s connect. I’d be happy to walk through your numbers and help you build a solid mortgage strategy.