Affordability calculator
See a comfortable planning estimate beside a lender-style upper range. Nothing you enter is saved.
Questions and references
What makes the comfortable estimate different?
It uses planning ratios of 32% for housing and 40% for total debt, then applies your preferred core housing budget when you provide one. This creates breathing room below the lender-style comparison.
What is included in the core housing cost?
The debt-service check includes the qualifying mortgage payment, property tax, heating, and 50% of condo fees. The monthly core-housing total uses the mortgage payment at your entered rate and 100% of condo fees. It excludes home insurance, electricity and water beyond heating, and maintenance or repair reserves, which should be budgeted separately.
How does the mortgage stress test work?
The qualifying payment uses the higher of 5.25% or your entered rate plus 2 percentage points. Your actual payment may be lower, but the higher payment is used to test borrowing capacity.
Why could a lender give me a different number?
Lenders verify income and debts, review credit, apply their own policies, and may treat bonuses, self-employment income, rental income, condo costs, support payments, or other obligations differently.
Official calculation references
Rules and rates were last reviewed on August 9, 2026.