Rent vs Buy Calculator: Find the Year Buying Beats Renting


"Rent is throwing money away."
You've heard it. Probably from a relative at Thanksgiving.
It's not always true. Sometimes renting is the smarter move. Sometimes buying wins by a mile. The answer depends on one thing most people never calculate: how long you
plan to stay.
So I built a calculator that does the math for you.
What the calculator actually tells you
Most rent vs buy calculators compare your rent to a mortgage payment. That's not a real comparison.
Owning a home costs more than the payment. You've got property taxes, insurance, HOA dues, and repairs. Then, when you sell, you pay agent commissions and closing costs.
But owning also gives you things renting never does. Your home can go up in value.
Every payment pays down your loan. And you may be able to deduct mortgage interest
and property taxes.
The calculator puts all of that side by side and shows you the break-even year. That's the year buying becomes cheaper than renting, after you account for equity and the cost of selling.
What you plug in
For buying:
Home price and down payment
Interest rate and loan term
Property taxes, homeowners insurance, and HOA dues
PMI, if you're putting less than 20% down
Your tax bracket
Yearly maintenance (1% of the home's value is a common starting point)
Selling costs (6% is a common estimate)
How much you expect the home to appreciate each year
For renting:
Your monthly rent
Renters insurance
How much you expect rent to go up each year
Then move the year slider. You can see where you'd stand after 3 years, 7 years, or 15 years.
A quick example
Here's the sample scenario loaded into the calculator:
$500,000 home with $50,000 down
7.089% rate on a 30-year loan
$6,000 a year in taxes, $1,500 in insurance, $600 in HOA dues
3% yearly appreciation
Compared to renting for $2,000 a month, with 2% yearly rent increases
In the first few years, renting wins. You spend way less cash because you didn't put money down and you're not paying taxes or repairs.
But by year 6, buying pulls ahead.
At that point, the buyer has spent about $296,000 out of pocket, compared to about $153,000 for the renter. That looks bad until you count what the buyer owns. The home is worth about $597,000, the loan is down to about $418,000, and after roughly $36,000 in selling costs, the buyer walks away with enough equity to come out ahead.
The buyer's net cost after 6 years is about $152,400. The renter's is about $153,400.
And from there, the gap keeps getting wider every year.
Those are sample numbers. Yours will be different. That's the point of running it.
What changes the answer the most
After 24 years of doing this, here's what I see move the break-even year the most:
How long you stay. This is the big one. If you might move in 2 years, renting usually wins. If you're staying 7 to 10 years, buying usually does.
Rent compared to price. In high-cost areas like the Bay Area and coastal Orange County, rent can be low compared to home prices. That pushes the break-even year out. In other markets, buying wins much faster.
Your rate. A lower rate means more of each payment goes to your loan balance instead of interest.
Appreciation. Nobody knows what home values will do. Try a few numbers. Run it at 2%, 3%, and 4% and see how much the answer moves.
Down payment. Putting less down keeps more cash in your pocket upfront. It can also add PMI. The calculator shows you the trade-off.
What the calculator doesn't know
A calculator is a starting point. It doesn't know your credit, your income, or which loan programs you qualify for.
It also uses a simple tax estimate. Most people take the standard deduction now, so the mortgage interest deduction may not help you as much as the calculator assumes. Set your tax bracket to 0% to see the result without it, and talk to your CPA about your own situation.
And it doesn't know the options that can change the math. Things like down payment assistance, first-time buyer programs, temporary rate buydowns, or a refinance down the road if rates drop.
That's where I come in.
Want to run your real numbers?
If you're trying to decide whether to keep renting or start shopping, let's look at it together. I'll plug in a real home price, a real rate for your situation, and the programs you actually qualify for.
It starts with a five-minute soft-pull application. No hit to your credit.
Call or text me at 949.577.6449 (Orange County) or 415.233.4235 (Bay Area), or email mbelfor@apmortgage.com.
Related questions
Is it cheaper to rent or buy a home?
In the short run, renting is usually cheaper. Over the long run, buying usually wins. The break-even year depends on your rent, the home price, your rate, and how long you stay.
How many years do you need to stay for buying to make sense?
There's no single number. In many scenarios it lands somewhere around 5 to 7 years. In expensive coastal markets, it can take longer. Run your own numbers in the calculator to see yours.
Why does the calculator count selling costs?
Equity isn't real money until you sell or borrow against it. When you sell, you'll pay agent commissions and closing costs, often around 6% of the price. Counting those gives you a fair comparison.
Does the calculator include the mortgage interest tax deduction?
Yes. It estimates savings using your tax bracket. If you take the standard deduction, set your bracket to 0% for a more conservative result.
What if I don't have 20% down?
You have options. Many loans allow much less down, and down payment assistance programs can help cover the gap. Add a PMI rate in the calculator to see how it affects the answer.
Can I get pre-approved before I find a home?
Yes. We can fully underwrite you before you pick a property, so your offer carries much more weight than a standard pre-approval letter. It starts with a five-minute soft-pull application.






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