Affordable Mortgage Formula:
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The Annual Salary Mortgage Calculator helps determine how much mortgage you can afford based on your gross income, following Canada Mortgage and Housing Corporation (CMHC) guidelines. It uses the Gross Debt Service (GDS) ratio to calculate affordability.
The calculator uses the following formula:
Where:
Explanation: The formula calculates the maximum mortgage payment you can afford based on your income and expenses, then converts this to a mortgage amount using the interest rate.
Details: The GDS ratio is the percentage of your gross income needed to cover housing costs (mortgage payments, property taxes, heating, and condo fees). CMHC typically recommends keeping this below 39%.
Tips: Enter your gross annual income, GDS ratio (default is 39%), annual housing expenses, and current mortgage interest rate. The calculator will show the maximum mortgage amount you can afford.
Q1: What is a good GDS ratio?
A: CMHC recommends keeping your GDS ratio at 39% or lower for mortgage approval.
Q2: What expenses should I include?
A: Include property taxes, heating costs, and 50% of condo fees if applicable. Don't include other living expenses.
Q3: How does interest rate affect affordability?
A: Higher interest rates reduce the mortgage amount you can afford, as more of your payment goes toward interest.
Q4: Is this calculator specific to Canada?
A: Yes, it follows CMHC guidelines which are specific to the Canadian mortgage market.
Q5: What other factors affect mortgage approval?
A: Lenders also consider credit score, down payment, total debt service ratio, employment history, and other financial factors.