Your line of credit floats with prime. Your qualification does not.
A professional line of credit is priced off prime. Whatever the Bank announces can change the interest you pay on a carried balance from that day forward. What it does not change is how a lender counts that balance when you apply for a mortgage.
A lender does not use your actual PLOC payment. It calculates a payment at the minimum qualifying rate of 5.25% over a 15-year amortization, which is 180 months. The payment scales with what you owe: a zero balance counts as zero, and a $200,000 balance counts as $1,602 a month. The number the lender uses is a formula, not your statement.
On a $200,000 balance the qualifying payment is $1,602 a month. That figure sits in your debt ratios regardless of what prime does after the announcement. If prime shifts, your real interest cost on the balance shifts with it, but the $1,602 the lender counts stays put.
What is known before the announcement.
The decision is scheduled for September 2, 2026. It has not happened. Anything you read this week is context, not an outcome, and it does not tell you what will be announced.
What is in the public research
- Better Dwelling (August 25, 2026) reports Bank of Canada research finding that rate cuts can worsen housing affordability despite lower borrowing costs.
- The same research, summarised by Better Dwelling on August 23, 2026, finds rate cuts boost both housing supply and demand.
- The August 25 summary also reports Canadian home prices near their highs.
Read that as background on how the housing market behaves, not as a signal for September 2. None of it states what the Bank will do. Plan around the mechanics you can see, not around a guess at the announcement.
What moves in your numbers and what does not.
The qualifying-rate floor and the debt ratios do not move with a rate announcement. The interest cost on a PLOC balance can. So the piece of your file that decides how much house you qualify for is largely settled before September 2, while the piece that decides your monthly carrying cost on a balance is the piece that can shift.
The mortgage itself is stress tested at the contract rate plus 2 percentage points, or 5.25%, whichever is higher. That test is a rule, not a rate forecast. Here is how physician files sit today at each stage. The student-debt payment shown is the $1,602-per-$200,000 style calculation applied to each balance.
| Stage | Income | Student debt | Down | Price | Payment/mo | Debt/mo | Qual. rate |
|---|---|---|---|---|---|---|---|
| PGY-1 to PGY-2 | $185,000 | $0 | 20% | $1,049,714 | $4,229 | $0 | 6.49% |
| PGY-1 to PGY-2 | $185,000 | $150,000 | 10% | $794,997 | $4,118 | $1,201 | 6.49% |
| PGY-3 and later | $225,000 | $0 | 20% | $1,280,518 | $5,159 | $0 | 6.49% |
| PGY-3 and later | $225,000 | $200,000 | 10% | $949,620 | $4,919 | $1,602 | 6.49% |
| Final year, most specialties | $300,000 | $0 | 20% | $1,713,276 | $6,903 | $0 | 6.49% |
| Final year, most specialties | $300,000 | $150,000 | 10% | $1,399,447 | $7,250 | $1,201 | 6.49% |
Read the two rows in each pair together. The debt column is the qualifying payment on the line of credit balance, sitting in the ratios at 5.25% over 180 months. That number is why a larger carried balance pulls the price you qualify for down, and why it does that no matter what happens on September 2.
What to do before the decision, and what to leave alone.
Nothing in a physician file needs to be timed to a single announcement. The pieces that decide your qualification are set by the qualifying rate, the ratios and your projected income, and none of those turn on September 2. Treat the week as ordinary.
Worth doing this week
- Know your carried PLOC balance and what it costs you at 5.25% over 180 months in the ratios. That is the number a lender reads.
- Confirm which projected-income stage you are in, since the stage sets the income a lender uses before your final year.
- Keep the ratios in view. GDS caps at 39 and TDS caps at 44, and a carried balance eats into both.
Leave alone
- Do not rush a fixed-versus-variable choice to beat an announcement. That decision runs on your file and your horizon, not on one date.
- Do not draw down or pay down the line as a bet on the outcome. The qualifying payment the lender counts does not change with prime either way.
- Do not delay an application you were otherwise ready to submit because a decision is pending.
For the mechanics behind each piece, see the physician line of credit strategy page and the PLOC optimizer for the balance math, the fixed vs variable for physicians page for the rate-type question, and the projected-income schedule for the stage that sets your income.
Sources and dates.
Figures in this guide come from the sources below, as published on the dates shown. The page carries a review-by date; after September 2026 treat any number as a starting point and check the source.
Frequently asked questions.
Should I pay down my line of credit before the Bank of Canada decision?01
Paying down the balance lowers the interest you carry, but it does not change how a lender qualifies you on a per-dollar basis. A lender counts the balance at 5.25% over 180 months, so a $200,000 balance shows as $1,602 a month in the ratios whatever prime does.
Will the rate decision change how much mortgage I qualify for?02
Your qualification runs on the 5.25% qualifying-rate floor, the GDS ceiling of 39 and the TDS ceiling of 44, plus your projected income. Those do not move with a single announcement scheduled for September 2, 2026.
Does a carried PLOC balance count against me even though I am not repaying it yet?03
Yes. A student loan or professional line of credit counts in the debt ratios even when it is not in repayment. The payment is calculated at the minimum qualifying rate of 5.25% over a 15-year amortization.
Should I lock in a fixed rate before the announcement?04
The fixed-versus-variable choice runs on your file and your time horizon, not on one date. Do not rush it to beat an announcement; see the fixed vs variable for physicians page for how a lender reads each.
What income will a lender use if I am still a resident?05
First and second year residents and fellows are read at $185,000, and third year and later at $225,000, both flat figures regardless of specialty. In your final year or within 36 months of completion, a specialty chart applies, with unlisted specialties defaulting to $225,000.