# How the Stress Test Floor Dropped and Why Your Renewal Math Changed

The federal mortgage stress test stopped using a 5.25% floor in June 2024. That floor had been in place since early 2023, when qualifying rates sat well above contract rates and the policy wanted to protect against payment shock. The new rule uses a single test: your contract rate plus 2%. No alternative minimum.

For borrowers renewing between now and 2029, that shift changes which rate environments tighten qualification and which ones ease it. The old system penalized low rates by forcing you to qualify at 5.25% even when your actual mortgage sat at 2.8%. The new system penalizes high rates by keeping the buffer locked to your contract, so a 6% mortgage gets tested at 8%.

What the change actually did

Under the prior rule, if your rate was 3.25% or lower, you qualified at 5.25%. If your rate was above 3.25%, you qualified at your rate plus 200 basis points. That created a threshold: below 3.25%, your qualification capacity stayed flat no matter how much rates dropped. Above it, your Sam Greene locked in a 2.4% variable rate in early 2021. Three years later, his household income sat at $127,000, unchanged. When his renewal came up in September 2026, his lender offered 4.9% fixed. Under the old test, he would have qualified at 5.25%. Under the new one, he qualifies at 6.9%. The buffer grew by 165 basis points, and his maximum borrowing capacity just shrank by $78,000.

That gap is where the stress test change lives for most people. The 5.25% floor is gone. The new rule is mechanical: contract rate plus exactly 2%, every time, no backstop. For households renewing in low-rate environments, the change removes a constraint. For those renewing when rates are elevated, it tightens the screws further than the old system would have.

The crossover point

The old test had two paths. If your contract rate was 3.25% or lower, you qualified at 5.25% no matter what. If your rate was higher than 3.25%, you qualified at your rate plus 200 basis points. That created a pivot: at 3.24%, your qualification rate was fixed. At 3.26%, it started climbing again.

The new test is linear. A 3% mortgage qualifies at 5%. A 4% mortgage qualifies at 6%. A 5.5% mortgage qualifies at 7.5%. The floor is gone, which means low rates now give you more capacity than they used to, and high rates give you less.

Concrete case: you earn $110,000 gross, carry no other debt, and want to refinance. At a 3.5% contract rate, the old test qualified you at 5.5% (contract plus 2%). The new test also qualifies you at 5.5%. No change. At a 2.9% contract rate, the old test qualified you at 5.25%. The new test qualifies you at 4.9%. Your maximum borrowing capacity just went up roughly $42,000, because the floor no longer caps you.

Flip it. At a 5.2% contract rate, the old test qualified you at 7.2%. The new test still qualifies you at 7.2%. At 6.1%, the old test qualified you at 8.1%. The new test also qualifies you at 8.1%. But the psychological anchor changed: there's no longer a scenario where the test rate is gentler than your actual rate math suggests. The buffer is always exactly 2%, which makes planning straightforward but removes the safety valve the floor provided when rates were climbing fast.

Where the leverage shifted

The real change isn't in the math. It's in the renewal negotiation. Before June 2024, if you were switching lenders at renewal, you had to requalify under the stress test even if your balance and term weren't changing. That ended. If you're doing a straight switch at renewal, same balance, same amortization, you no longer face the stress test at the Big Six banks or most federally regulated lenders as of late 2024.

That shift matters more than the floor removal for most households. A borrower who locked in 2.1% in 2021 and is renewing at 5% in 2026 can now move to a competitor offering 4.7% without proving they can carry payments at 7%. The stress test only applies if you're increasing the loan, shortening the amortization, or switching from variable to fixed with a balance adjustment.

For refinances and equity takeouts, the buffer stays. You want to pull $60,000 from your home at 5.3% to consolidate credit card debt? You qualify at 7.3%, and your total debt service ratio can't exceed 44%. That hasn't changed. The loosening is narrow: it applies to renewals that don't touch the loan structure.

The rate scenario that breaks the model

The new test assumes bond markets stay rational. If 5-year fixed rates drop back to 3%, your stress test ceiling is 5%, and borrowing capacity expands. If rates climb to 7%, your test ceiling is 9%, and capacity compresses hard.

The problem is that the test rate now moves in lockstep with contract rates, which move with bond yields, which move with inflation expectations and central bank policy. There's no cushion. During the floor era, if inflation spiked and the Bank of Canada hiked aggressively, your stress test rate might lag your contract rate because the floor was doing some of the work. Now it's pure tracking. A 100-basis-point jump in your contract rate is a 100-basis-point jump in your qualification rate, immediately.

That creates a new planning rule: if you think rates are going higher in the next 18 months, lock your renewal early or clear other debt now. Your qualification capacity tomorrow will be lower than it is today, by exactly 2% for every 1% rates climb. The math is no longer ambiguous.