The true cost of owning a home
You ran a mortgage calculator and got a payment. That number is not what it costs to own the home — and the gap is where buyers get into trouble.
True monthly cost calculator
A mortgage calculator answers one question: what is the principal and interest? But the keys come with a stack of other bills that never appear in that figure. Add them up and the real monthly cost is routinely 30 to 60 percent higher. Here is what the payment leaves out.
The seven costs your payment hides
1. Property tax. Charged yearly as a percentage of assessed value — often around 1% to 1.5% in the US, varying widely by county, and similar ranges across Canadian municipalities. On a $450,000 home, 1.1% is roughly $400 a month that arrives whether or not your mortgage is paid off.
2. Homeowners insurance. Required by every lender, typically $1,200 to $2,500 a year, and rising fast in regions exposed to wildfire, flood and storm risk. Budget more, not less, than today's quote.
3. Mortgage insurance (PMI or CMHC). Put down less than 20% and you pay for it. In the US, PMI adds roughly 0.3% to 1% of the loan per year until you reach 20% equity. In Canada, CMHC insurance is added to your loan balance instead of billed monthly — so it quietly raises your payment rather than showing up as its own line.
4. HOA or condo fees. Common-interest communities and condos charge monthly dues for shared upkeep — anywhere from $200 to over $700 a month. They can rise sharply, and special assessments can land without warning.
5. Utilities. Heat, electricity, water, sewer and garbage. A bigger home means bigger bills, and they are easy to forget when you are renting a smaller place.
6. Maintenance and repairs. The cost nobody quotes you. Plan on about 1% of the home's value per year — a furnace, roof or water heater will eventually prove why. Treat it as a monthly reserve, not a surprise.
7. Closing and one-time costs. Not monthly, but real: US closing costs run about 2% to 5% of the price, and most Canadian provinces charge a one-time land transfer tax that can reach several thousand dollars. Have this cash ready on top of your down payment.
US vs Canada: the key differences
The ongoing costs — tax, insurance, fees, utilities, maintenance — look similar on both sides of the border. The differences are at the edges: the US has PMI and deductible mortgage interest in many cases; Canada has CMHC insurance folded into the loan, land transfer tax at closing, and no general mortgage-interest deduction. The calculator above handles both so you compare apples to apples.
The rule of thumb that keeps you safe
Before you fall for a payment, multiply it by 1.3 to 1.6. That rough range covers the hidden costs for most buyers and turns an exciting number into an honest one. Then check what you can actually borrow with our qualification calculator, and see where rates are headed on the 2026 rate forecast.
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Frequently asked questions
What are the hidden costs of owning a home?
Beyond principal and interest, the main ongoing costs are property tax, homeowners insurance, mortgage insurance (PMI in the US or CMHC in Canada if you put down less than 20%), HOA or condo fees, utilities, and maintenance and repairs. Together these often add 30-60% on top of the bare mortgage payment.
How much should I budget for home maintenance?
A common rule of thumb is 1% of the home's value per year, so $4,500 a year - about $375 a month - on a $450,000 home. Older homes and single-family houses tend to run higher; newer homes and condos (where some upkeep is covered by fees) can run lower.
What is PITI?
PITI stands for principal, interest, taxes and insurance - the four costs lenders bundle when they size your payment. It is closer to your true cost than P&I alone, but it still leaves out HOA fees, utilities and maintenance, which is why buyers underestimate.
Do these hidden costs apply in Canada too?
Yes. Canadians pay property tax, home insurance, condo fees, utilities and maintenance just like Americans. The main differences: Canada has no PMI - instead a down payment under 20% requires CMHC insurance that is added to the loan balance - and buyers also face one-time land transfer tax at closing in most provinces.
How much more than my mortgage payment should I plan for?
A safe planning figure is to budget 1.3 to 1.6 times your principal-and-interest payment to cover the full cost of ownership. Run your own numbers in the calculator above, because property tax rates and insurance costs vary widely by location.