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First Home Ontario
NEW BUILD & NEW HOME BUYER CENTRE
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Scenario Guide

How to Pass the Mortgage Stress Test in 2026

Understanding the 2026 Stress Test Floor

TL;DR: You will be tested at your contract rate plus 2%, or 5.25% — whichever is higher. For new builds, the new 30-year amortization option makes passing slightly easier.

The OSFI mortgage stress test is designed to ensure you can still afford your payments if interest rates rise. Even if your broker secures a fixed rate of 4.5% for 5 years, the bank is legally required to qualify your income as if you were paying 6.5% (your rate + 2%). This suppresses your actual purchasing power by roughly 20%.

The Game Changer: 30-Year Amortizations

For Ontario first-time buyers in 2026, the biggest tool to defeat the stress test is the expanded 30-year amortization for insured mortgages on newly constructed homes (including pre-construction). Previously, if you had less than 20% down, you were capped at a 25-year repayment schedule. By stretching the repayment to 30 years, your hypothetical monthly payment under the stress test drops significantly, effectively allowing you to qualify for a larger purchase price on the same gross income.

Gross Debt Service (GDS) vs. Total Debt Service (TDS)

To pass, you must meet two ratios:

  • GDS (Max 39%): Your housing costs (mortgage + property tax + heating + 50% of condo fees) cannot exceed 39% of your gross household income.
  • TDS (Max 44%): Your housing costs PLUS all other debt obligations (car loans, student lines of credit, credit card minimums) cannot exceed 44% of your gross income.

Strategies to Improve Your Ratios

If you are failing the stress test ahead of closing, consider the following:

1. Pay down revolving debt: Auto loans and large credit card balances destroy your TDS ratio. Paying off a $400/month car loan often increases your mortgage qualification amount by $80,000+.

2. Increase your down payment: Use the combined power of the FHSA and HBP (up to $100,000 per person) to reduce the principal loan amount.

3. Co-signers: Adding a parent as a guarantor or co-signer is incredibly common in the GTA, allowing you to blend incomes for the purpose of the GDS/TDS calculation.