Mortgage Approval 101: GDS & TDS Explained

Dave Lacusta • August 13, 2025

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.

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New to Credit? Let’s Build a Solid Foundation

By Dave Lacusta • September 24, 2025

Starting from Scratch: How to Build Credit the Smart Way If you're just beginning your personal finance journey and wondering how to build credit from the ground up, you're not alone. Many people find themselves stuck in the classic credit paradox: you need credit to build a credit history, but you can’t get credit without already having one. So, how do you break in? Let’s walk through the basics—step by step. Credit Building Isn’t Instant—Start Now First, understand this: building good credit is a marathon, not a sprint. For those planning to apply for a mortgage in the future, lenders typically want to see at least two active credit accounts (credit cards, personal loans, or lines of credit), each with a limit of $2,500 or more , and reporting positively for at least two years . If that sounds like a lot—it is. But everyone has to start somewhere, and the best time to begin is now. Step 1: Start with a Secured Credit Card When you're new to credit, traditional lenders often say “no” simply because there’s nothing in your file. That’s where a secured credit card comes in. Here’s how it works: You provide a deposit—say, $1,000—and that becomes your credit limit. Use the card for everyday purchases (groceries, phone bill, streaming services). Pay the balance off in full each month. Your activity is reported to the credit bureaus, and after a few months of on-time payments, you begin to establish a credit score. ✅ Pro tip: Before you apply, ask if the lender reports to both Equifax and TransUnion . If they don’t, your credit-building efforts won’t be reflected where it counts. Step 2: Move Toward an Unsecured Trade Line Once you’ve got a few months of solid payment history, you can apply for an unsecured credit card or a small personal loan. A car loan could also serve as a second trade line. Again, make sure the account reports to both credit bureaus, and always pay on time. At this point, your focus should be consistency and patience. Avoid maxing out your credit, and keep your utilization under 30% of your available limit. What If You Need a Mortgage Before Your Credit Is Ready? If homeownership is on the horizon but your credit history isn’t quite there yet, don’t panic. You still have a few options. One path is to apply with a co-signer —someone with strong credit and income who is willing to share the responsibility. The mortgage will be based on their credit profile, but your name will also be on the loan, helping you build a record of mortgage payments. Ideally, when the term is up and your credit has matured, you can refinance and qualify on your own. Start with a Plan—Stick to It Building credit may take a couple of years, but it all starts with a plan—and the right guidance. Whether you're figuring out your first steps or getting mortgage-ready, we’re here to help. Need advice on credit, mortgage options, or how to get started? Let’s talk.

Bank of Canada Rate Announcement Sept 17th, 2025

By Dave Lacusta • September 17, 2025

Bank of Canada lowers policy rate to 2½%. FOR IMMEDIATE RELEASE Media Relations Ottawa, Ontario September 17, 2025 The Bank of Canada today reduced its target for the overnight rate by 25 basis points to 2.5%, with the Bank Rate at 2.75% and the deposit rate at 2.45%. After remaining resilient to sharply higher US tariffs and ongoing uncertainty, global economic growth is showing signs of slowing. In the United States, business investment has been strong but consumers are cautious and employment gains have slowed. US inflation has picked up in recent months as businesses appear to be passing on some tariff costs to consumer prices. Growth in the euro area has moderated as US tariffs affect trade. China’s economy held up in the first half of the year but growth appears to be softening as investment weakens. Global oil prices are close to their levels assumed in the July Monetary Policy Report (MPR). Financial conditions have eased further, with higher equity prices and lower bond yields. Canada’s exchange rate has been stable relative to the US dollar. Canada’s GDP declined by about 1½% in the second quarter, as expected, with tariffs and trade uncertainty weighing heavily on economic activity. Exports fell by 27% in the second quarter, a sharp reversal from first-quarter gains when companies were rushing orders to get ahead of tariffs. Business investment also declined in the second quarter. Consumption and housing activity both grew at a healthy pace. In the months ahead, slow population growth and the weakness in the labour market will likely weigh on household spending. Employment has declined in the past two months since the Bank’s July MPR was published. Job losses have largely been concentrated in trade-sensitive sectors, while employment growth in the rest of the economy has slowed, reflecting weak hiring intentions. The unemployment rate has moved up since March, hitting 7.1% in August, and wage growth has continued to ease. CPI inflation was 1.9% in August, the same as at the time of the July MPR. Excluding taxes, inflation was 2.4%. Preferred measures of core inflation have been around 3% in recent months, but on a monthly basis the upward momentum seen earlier this year has dissipated. A broader range of indicators, including alternative measures of core inflation and the distribution of price changes across CPI components, continue to suggest underlying inflation is running around 2½%. The federal government’s recent decision to remove most retaliatory tariffs on imported goods from the US will mean less upward pressure on the prices of these goods going forward. With a weaker economy and less upside risk to inflation, Governing Council judged that a reduction in the policy rate was appropriate to better balance the risks. Looking ahead, the disruptive effects of shifts in trade will continue to add costs even as they weigh on economic activity. Governing Council is proceeding carefully, with particular attention to the risks and uncertainties. Governing Council will be assessing how exports evolve in the face of US tariffs and changing trade relationships; how much this spills over into business investment, employment, and household spending; how the cost effects of trade disruptions and reconfigured supply chains are passed on to consumer prices; and how inflation expectations evolve. The Bank is focused on ensuring that Canadians continue to have confidence in price stability through this period of global upheaval. We will support economic growth while ensuring inflation remains well controlled. Information note The next scheduled date for announcing the overnight rate target is October 29, 2025. The Bank’s October Monetary Policy Report will be released at the same time.

Don’t Let Collections Derail Your Mortgage Application

By Dave Lacusta • September 10, 2025

Can You Get a Mortgage If You Have Collections on Your Credit Report? Short answer? Not easily. Long answer? It depends—and it’s more common (and fixable) than you might think. When it comes to applying for a mortgage, your credit report tells lenders a story. Collections—debts that have been passed to a collection agency because they weren’t paid on time—are big red flags in that story. Regardless of how or why they got there, open collections are going to hurt your chances of getting approved. Let’s break this down. What Exactly Is a Collection? A collection appears on your credit report when a bill goes unpaid for long enough that the lender decides to stop chasing you—and hires a collection agency to do it instead. It doesn’t matter whether it was an unpaid phone bill, a forgotten credit card, or a disputed fine: to a lender, it signals risk. And lenders don’t like risk. Why It Matters to Mortgage Lenders? Lenders use your credit report to gauge how trustworthy you are with borrowed money. If they see you haven’t paid a past debt, especially recently, it suggests you might do the same with a new mortgage—and that’s enough to get your application denied. Even small collections can cause problems. A $32 unpaid utility bill might seem insignificant to you, but to a lender, it’s a red flag waving loudly. But What If I Didn’t Know About the Collection? It happens all the time. You move provinces and miss a final utility charge. Your cell provider sends a bill to an old address. Or maybe the collection is showing in error—credit reports aren’t perfect, and mistakes do happen. Regardless of the reason, the responsibility to resolve it still falls on you. Even if it’s an honest oversight or an error, lenders will expect you to clear it up or prove it’s been paid. And What If I Chose Not to Pay It? Some people intentionally leave certain collections unpaid—maybe they disagree with a charge, or feel a fine is unfair. Here are a few common “moral stand” collections: Disputed phone bills COVID-related fines Traffic tickets Unpaid spousal or child support While you might feel justified, lenders don’t take sides. They’re not interested in why a collection exists—only that it hasn’t been dealt with. And if it’s still active, that could be enough to derail your mortgage application. How Can You Find Out What’s On Your Report? Easy. You can check it yourself through services like Equifax or TransUnion, or you can work with a mortgage advisor to go through a full pre-approval. A pre-approval will quickly uncover any credit issues, including collections—giving you a chance to fix them before you apply for a mortgage. What To Do If You Have Collections Verify: Make sure the collection is accurate. Pay or Dispute: Settle the debt or begin a dispute process if it’s an error. Get Proof: Even if your credit report hasn’t updated yet, documentation showing the debt is paid can be enough for some lenders. Work With a Pro: A mortgage advisor can help you build a strategy and connect you with lenders who offer flexible solutions. Collections are common, but they can absolutely block your path to mortgage financing. Whether you knew about them or not, the best approach is to take action early. If you’d like to find out where you stand—or need help navigating your credit report—I’d be happy to help. Let’s make sure your next mortgage application has the best possible chance of approval.