Mortgage Calculator Ontario Affordability

This mortgage affordability calculator helps you determine how much home you can afford in Ontario based on your income, down payment, and interest rates. The calculator follows Ontario's mortgage stress test rules to ensure your mortgage payments are sustainable.

How to Use This Calculator

To calculate your mortgage affordability in Ontario:

Enter your annual income before taxes.
Select your amortization period (typically 25 or 30 years).
Enter your down payment percentage (minimum 5% in Ontario).
Enter the current interest rate (get this from your mortgage broker).
Click Calculate to see your maximum mortgage amount and monthly payment.

The calculator will show you:

Your maximum mortgage amount you can afford
Your estimated monthly mortgage payment
A chart showing your payment breakdown

Formula Used

The calculator uses the following formula to determine your maximum mortgage amount:

Maximum Mortgage = (Annual Income × 2.8) / 100 Monthly Payment = P × r × (1 + r)^n / [(1 + r)^n - 1] Where: P = principal loan amount r = monthly interest rate (annual rate / 12) n = number of payments (amortization period × 12)

This formula follows Ontario's mortgage stress test rules, which limit your mortgage to 2.8 times your annual income.

Ontario Mortgage Affordability Rules

In Ontario, mortgage lenders must follow the mortgage stress test rules to ensure borrowers can afford their mortgage payments. The key rules are:

Your total mortgage amount cannot exceed 2.8 times your annual income
Your mortgage payment cannot exceed 32% of your gross income
Your total debt payments (including mortgage, credit cards, etc.) cannot exceed 40% of your gross income

Note: These rules are guidelines, not strict limits. Lenders may approve mortgages that exceed these limits if you can demonstrate your ability to make payments.

Worked Example

Let's calculate the mortgage affordability for someone with:

Annual income: $80,000
Amortization period: 25 years
Down payment: 10%
Interest rate: 5.00%

Using the calculator:

Maximum mortgage amount: $224,000
Monthly payment: $1,025

This means you could afford a home priced at $224,000 with a $22,400 down payment, resulting in a monthly payment of $1,025.

Frequently Asked Questions

What is the maximum mortgage I can get in Ontario?

The maximum mortgage amount in Ontario is determined by your income and the mortgage stress test rules. Typically, you can get up to 2.8 times your annual income.

What is the minimum down payment in Ontario?

The minimum down payment in Ontario is 5% for conventional mortgages. First-time home buyers may be eligible for lower down payments through programs like the Ontario Home Buyers' Plan.

How does the amortization period affect my mortgage?

A longer amortization period (like 30 years) typically results in lower monthly payments but more interest paid over time. A shorter period (like 25 years) means higher monthly payments but less total interest paid.

Can I get a mortgage if I have credit card debt?

Yes, but your total debt-to-income ratio must be within acceptable limits. Lenders consider all your debts when approving mortgages.