For years, federal mortgage rules treated Canada's most expensive housing markets as an afterthought, with an insured mortgage cap frozen at $1 million at a time when the average Markham detached home was already well above that threshold, and amortization limits that penalised first-time buyers in high-price cities. The 2025–2026 federal policy changes reverse much of that. The insured mortgage cap is now $1.5 million. Thirty-year amortizations are available to first-time buyers on any eligible property, and to all buyers on newly constructed homes. And for the first time, first-time buyers of new-build homes can receive up to $50,000 back through the GST/HST rebate. This guide explains each change, who it applies to, and what it means in actual dollar terms for buyers in Markham's market.
The Three Changes: A Plain-Language Summary
Policy effective dates: The insured mortgage cap increase (to $1.5M) and expanded 30-year amortizations took effect December 15, 2024. The First-Time Home Buyers' GST/HST rebate received Royal Assent on March 12, 2026. Each change has specific eligibility requirements that differ — the detailed rules for each are explained in the sections below. Confirm current eligibility with your mortgage broker and accountant before any purchase decision.
The Three Rule Changes: What Each One Actually Does
The most consequential change for Markham buyers is the increase in the insured mortgage cap from $1,000,000 to $1,500,000. To understand why this matters, you need to understand what an insured mortgage is and what the cap meant in practice.
An insured mortgage — one backed by CMHC, Sagen, or Canada Guaranty — allows buyers to purchase with a down payment of less than 20%. Before the cap increase, any property priced above $1,000,000 required a minimum 20% down payment, no exceptions. In Markham, where the average detached home price is approximately $1.47 million and the most popular family home categories consistently exceed $1.1 million, this rule effectively locked first-time and younger buyers out of a mortgage structure that would have made their purchase accessible.
With the cap at $1.5 million, a buyer can now purchase a Markham townhome at $1.1 million with as little as 5% down on the first $500,000 and 10% on the remainder — a minimum down payment of approximately $85,000 rather than $220,000. On a $1.3 million Markham semi-detached, the minimum down payment drops from $260,000 to approximately $105,000. This is not a marginal improvement — it is the difference between a purchase being achievable and not achievable for a large cohort of Markham buyers who have the income to carry the mortgage but not the capital for a full 20% down payment at these price points.
The expansion of 30-year amortization availability is the change that most directly reduces monthly mortgage payments for eligible Markham buyers. Previously, insured mortgages were limited to 25-year amortizations — meaning buyers who needed the accessibility of a smaller down payment were also required to carry a higher monthly payment on that mortgage. The expansion removes this penalty for two buyer categories.
First-time buyers can now access a 30-year amortization on any eligible insured mortgage purchase — new construction or resale — provided the property is under $1.5 million and the buyer meets the other insured mortgage eligibility criteria. This is the most meaningful affordability change for the first-time buyer cohort, reducing monthly principal and interest payments by approximately 8–11% compared to the equivalent 25-year term.
All buyers — first-time and repeat — can access a 30-year amortization when purchasing a newly constructed home that has not been previously occupied. This provision creates a specific payment advantage for pre-construction and new-build purchases that does not apply to resale — a meaningful consideration for buyers evaluating Markham's active pre-construction market.
The First-Time Home Buyers' GST/HST rebate, which received Royal Assent on March 12, 2026, offers eligible first-time buyers of newly constructed homes a rebate of up to $50,000 on the GST or federal component of HST paid on the purchase. This is a substantial change to the financial calculus of pre-construction and new-build purchases in Markham — for eligible buyers, it reduces the effective cost of a new home by up to $50,000 at closing.
To understand the significance, the existing GST/HST new residential rebate structure was designed in an era when new home prices were substantially lower than today's Markham reality — the rebate phased out entirely for homes above $450,000, leaving buyers of all Markham new-build and pre-construction products with no meaningful federal tax relief on the purchase. The new programme expands eligibility to first-time buyers at Markham-relevant price points and provides a maximum rebate of $50,000.
The rebate applies specifically to newly constructed, never-occupied residential homes purchased by first-time buyers who meet the eligibility criteria — it does not apply to resale purchases. For Markham's active pre-construction condo market and new-build townhome segment, this is a genuine and material financial benefit that did not exist before March 2026.
Who Qualifies for What: The Quick-Reference Grid
The three rule changes have different eligibility conditions that can interact in ways that are not always obvious. This grid is a reference framework — not a definitive eligibility determination. Confirm your specific situation with your mortgage broker and accountant.
The "first-time buyer" definition matters more than it appears. Under federal mortgage rules, a first-time buyer is generally defined as someone who has not owned a home that was their principal place of residence at any time during the preceding 4 calendar years — meaning buyers who owned a home but sold it more than 4 years ago may qualify as first-time buyers again. Buyers who co-own a property with someone else may also find their eligibility affected. The GST/HST rebate may use a different definition than the insured mortgage rules. Confirm your specific status with your mortgage broker, accountant, and legal counsel — do not assume you know whether you qualify without verifying.
The Numbers: What These Rules Mean for Monthly Payments in Markham
Policy changes mean nothing without the dollar translation. Here are three scenarios built specifically around Markham's price ranges — showing what the 2026 rule changes mean for monthly payments before and after, with the same purchase price and interest rate applied across both columns.
Note: This purchase was not possible under the old $1M insured mortgage cap — it required 20% down ($220,000) before December 2024. Under the new $1.5M cap, it is achievable with $110,000 down. The 30-year amortization saves $445/month in P&I versus the 25-year term. The total interest paid over 30 years is higher than over 25 years — the trade-off is lower monthly payments versus more total interest. All figures are illustrative; CMHC premium rates and mortgage rates vary. Confirm with your mortgage broker.
Scenario B illustrates the maximum stacking benefit: a first-time buyer of a new-build property under $1.5M can combine the $1.5M cap access, the 30-year amortization, and the $50,000 GST/HST rebate simultaneously. The combined effect on monthly payments relative to the old rules is substantial — nearly $1,000/month in this scenario. GST/HST rebate eligibility, exact rebate amount, and calculation methodology must be confirmed with your accountant and legal counsel before any purchase decision. All figures are illustrative.
Scenario C illustrates the access change more than the payment change — the $1.5M cap increase is what unlocks this purchase for a repeat buyer with 15% down on a $1.35M new-build. Under the old $1M cap, this buyer needed $270,000 (20%) to purchase this home. Under the new rules, they need $202,500 (15%). The $67,500 difference in required down payment is the practical impact for buyers in this price band. All figures are illustrative; CMHC rates are approximate and subject to the premium schedule in effect at the time of purchase.
These payment scenarios are illustrative calculations, not mortgage approvals. Actual mortgage qualification depends on your income, credit score, existing debt obligations, and the lender's stress test requirements (qualifying at the greater of your contracted rate + 2% or 5.25%). The stress test means you must qualify at a rate meaningfully higher than your actual mortgage rate — in 2026, with 5-year fixed rates around 4.49%, you are qualifying at approximately 6.49%. Confirm your specific qualification scenario with a licensed mortgage broker before proceeding with any purchase.
Why Buyers Who Have Been Waiting Should Pay Attention Now
The combination of the 2026 rule changes and Markham's current market conditions creates a window that does not stay open indefinitely. Here is why buyers who have been on the fence should be assessing their position with genuine urgency.
The rule changes are already in effect, but the market hasn't fully priced them in. The insured mortgage cap increase and 30-year amortization expansion took effect in December 2024, and the GST/HST rebate received Royal Assent in March 2026. These changes expand the buyer pool for Markham's $1M–$1.5M property segment — meaning more qualified buyers are now able to compete for properties that were previously inaccessible to them. As this buyer pool expands and acts, competitive pressure on the properties in this price band will increase. Buyers who act before the expanded buyer pool fully enters the market are purchasing into conditions that are more favourable than those that will exist 6–12 months later.
The Bank of Canada rate at 2.25% has brought 5-year fixed rates to approximately 4.49%. Rate expectations for 2026–2027 are mixed — another cut is possible, but so is a pause or modest reversal depending on inflation data. Locking in a 5-year fixed rate in the current environment means capturing a rate that is meaningfully lower than the 2023 peak (5.25%+) and potentially below where rates return if inflation reaccelerates.
The Kaizen Real Estate Team
Michael's CPA background means mortgage rule changes are not just summarised — they are modelled. He calculates the real-dollar impact of the cap increase, the amortization expansion, and the GST/HST rebate against each buyer's specific purchase price target, income profile, and down payment position — so that what is a federal policy change on paper becomes a clear financial picture in the context of your specific Markham purchase. For buyers navigating these rules for the first time, or re-evaluating their position after years on the fence, this is the conversation that makes the complexity manageable. Licence #4784577.
Neeraj works closely with first-time buyers navigating Markham's market for the first time — managing the search, the offer process, and the coordination with mortgage brokers and lawyers that a first purchase requires. For buyers whose eligibility has just changed under the new rules — who can now access properties or financing structures they couldn't before — Neeraj helps translate that new access into a clear, focused search strategy within the Markham communities and property types that best fit their life and their budget.
Frequently Asked Questions
Not quite. The insured mortgage down payment structure uses a tiered minimum: 5% on the first $500,000 of the purchase price, and 10% on the portion between $500,001 and $1,500,000. So on a $1.4M home, the minimum down payment is: 5% of $500,000 ($25,000) plus 10% of $900,000 ($90,000) = $115,000 total. This is still a meaningful reduction from the 20% minimum ($280,000) that was previously required on any purchase above $1M. The new minimum is accessible — but it is not the 5% that applies at lower price points. A CMHC mortgage insurance premium applies on the full insured balance, which is added to the mortgage and paid over the amortization period.
The mortgage stress test requires buyers to qualify at the greater of their contracted mortgage rate plus 2%, or 5.25% — regardless of the actual rate offered. The 30-year amortization affects your monthly payment amount but not the qualifying rate. Importantly, however, lenders stress-test the monthly payment based on a 25-year amortization even if your actual mortgage will be at 30 years — meaning the qualifying payment used in the stress test calculation may be higher than your actual monthly payment. This means the 30-year amortization's benefit is felt in your actual monthly cash flow, but may not change whether you pass the stress test. Confirm this interaction with your mortgage broker, as lender practices can vary.
Yes — the First Home Savings Account (FHSA), introduced in 2023, allows eligible first-time buyers to contribute up to $8,000/year (lifetime maximum $40,000) in tax-deductible contributions, with withdrawals tax-free when used for a qualifying first home purchase. FHSA funds can be used as part of the down payment on any of the purchases described in this guide, and can be combined with the Home Buyers' Plan (RRSP withdrawal) for additional down payment resources. For first-time buyers who have been contributing to an FHSA, the combination of FHSA funds, RRSP Home Buyers' Plan funds, and the lower minimum down payment requirements under the new $1.5M cap can substantially reduce the barrier to entry into Markham's market. Confirm FHSA withdrawal eligibility and the interaction with the GST/HST rebate with your accountant.
Yes — over the full amortization period, a 30-year mortgage at the same rate generates more total interest than a 25-year mortgage. On a $1M mortgage at 4.49%, the total interest paid over 25 years is approximately $660,000; over 30 years, approximately $810,000 — a difference of approximately $150,000. However, most Canadians do not hold their mortgage for the full amortization period — they sell, refinance, or make prepayments that shorten the effective term considerably. The 30-year amortization is best understood as a tool for managing monthly cash flow, not as the final interest cost of the loan. Buyers with the cash flow to make additional prepayments can reduce the effective amortization period while preserving the flexibility of the lower required payment in months when cash flow is tighter.
For the 30-year amortization on new construction available to all buyers (not just first-time), the property must be newly built and not previously occupied as a place of residence. This covers pre-construction condos and townhomes closing for the first time, newly built detached homes from a builder, and new secondary suites or additions that are self-contained dwellings. A resale home — even a recently renovated one — does not qualify as "newly constructed" for these purposes. For the GST/HST First-Time Home Buyers' rebate, the definition of qualifying new construction aligns with the CRA's existing new residential rebate framework; confirm the specific eligibility criteria for your purchase with your accountant and legal counsel, as edge cases (partial renovations, conversion projects) have specific rules.