See what your income and debt payments can likely support without skipping taxes, insurance, utilities, and upkeep.
What this tool does
A practical starting point before you shop for a home
Use this calculator to estimate how much home you may be able to afford before you start browsing listings, comparing mortgage scenarios, or deciding whether buying makes sense compared with renting. It includes utility and upkeep planning so the result is closer to real ownership costs, not just the mortgage.
Taxes, insurance, condo fees, utilities, upkeep, and mortgage costs are combined into one clearer planning number.
Get a fast sense of whether a scenario looks conservative, comfortable, or more stretched.
Calculator
House affordability calculator
Start with a simple estimate, then turn on advanced costs if you want a more realistic planning view.
Results
Your affordability snapshot
Start with the practical answer first. Open the details only if you want to inspect the assumptions behind it.
Decision guide How this compares with common norms
Calculation details What is driving the estimate
Share Save or share this scenario
Copy a link with the current inputs so you can revisit or compare scenarios later.
Methodology How the affordability estimate works
The calculator uses common income-based affordability ratios to estimate a monthly housing budget, then works backward to an affordable home price.
- Gross monthly income is calculated from annual household income divided by 12.
- The planning estimate starts with a more practical housing target near 30% of gross monthly income, then checks it against a total debt target of 40%.
- Property taxes, home insurance, condo fees, and utilities are treated as part of housing cost because lender-style affordability ratios usually include them or closely related costs.
- A maintenance reserve is included as a practical planning cost even though it is not always part of lender qualification math.
- The lower of the housing budget and debt-constrained budget becomes the maximum estimated monthly ownership cost.
- The remaining amount is used to estimate the mortgage payment your budget may support at the selected rate and amortization period.
- The estimated loan amount is combined with your down payment to estimate an affordable home price.
- Industry norms shown on the page are based on gross income, not after-tax income. They are screening guidelines, not guarantees.
- This is a planning estimate only, not a mortgage approval, rate quote, or lending decision.
Rules of thumb Common affordability norms to keep in mind
Industry guidance is not perfectly consistent, but these benchmarks give you a useful frame of reference. Most of them use gross monthly income, not take-home pay.
Fannie Mae planning range
Fannie Mae says housing costs generally land around 25% to 30% of gross income for planning purposes.
Freddie Mac guideline
Freddie Mac says a housing expense ratio under 30% and a total debt-to-income ratio under 45% is ideal.
CMHC general rule
CMHC says, as a general rule, housing costs should be no more than 32% of gross income and total debt load no more than 40%.
CMHC insured mortgage caps
CMHC's calculator notes GDS should not exceed 39% and TDS should not exceed 44% for insured mortgages.
CFPB DTI reminder
The CFPB defines debt-to-income ratio as all monthly debt payments divided by gross monthly income. That is why norms are usually gross-income based rather than after-tax based.
Utilities count
HUD and CMHC affordability frameworks treat utilities or heating as part of housing affordability, which is why this tool includes them.
Source: HUD utility allowance guidance ยท CMHC debt service calculator
How to read the result Affordability is about margin, not just approval
The best number is not always the highest number. A workable budget should still leave room for repairs, moving costs, utilities, savings, and life outside the mortgage.
Conservative
Your debt load and fixed ownership costs leave more breathing room. This usually means more flexibility for maintenance, savings, and future rate changes.
Comfortable
The estimate broadly fits common affordability guidelines, but it is still worth comparing the payment with your own budget habits and other near-term goals.
Stretched
Debt payments or fixed housing costs are taking up a larger share of income. That can make the payment more sensitive to rate changes, repairs, or income interruptions.
FAQ Common questions about house affordability
These quick answers are meant to help you use the calculator more confidently.
What does this house affordability calculator estimate?
It estimates an affordable home price, a monthly housing payment, your front-end housing ratio, your back-end debt ratio, and whether the scenario appears conservative, comfortable, or stretched.
How is affordability different from mortgage pre-approval?
Affordability is a planning estimate based on common income and debt guidelines. A mortgage pre-approval is a lender decision based on your credit profile, documents, debt details, and current lending rules.
Why do monthly debt payments matter so much?
Car loans, student loans, credit cards, and other required monthly debt payments reduce how much room you have for a mortgage payment. That is why they directly affect the back-end affordability ratio.
Should I include property taxes, insurance, and condo fees?
Yes. These costs are part of the real monthly cost of owning a home, so leaving them out can make a home look more affordable than it actually is.
Does a bigger down payment increase affordability?
Usually yes. A larger down payment lowers the amount you need to borrow, which can reduce the monthly mortgage payment and increase the home price you can afford.
What is a good housing ratio?
Many affordability guidelines look for housing costs to stay near or below about 28% to 32% of gross income, with total debt payments often kept near or below about 36% to 40%. Exact limits vary by lender and borrower.
Why might the calculator say my budget is stretched?
A stretched result usually means the monthly housing cost, your debt payments, or both are pushing beyond common affordability thresholds. That can leave less room for maintenance, utilities, savings, and unexpected expenses.
Can I use this calculator to compare buying with renting?
Yes. It is a helpful starting point for understanding what monthly ownership may look like before comparing it to your current rent and other housing options.
Related tools
Keep planning with the next question
House affordability is usually the start of the decision, not the end of it.
Disclaimer
Important note
This calculator provides general educational estimates only and does not constitute financial, mortgage, tax, or legal advice. It is not a loan offer, rate guarantee, or mortgage approval. Actual affordability depends on lender rules, credit profile, debt details, property costs, closing costs, and other personal factors.