
Educational content only — not financial advice. Consult a qualified professional before making decisions.
Rent vs Buy in 2026: How to Run the Numbers


Educational content only — not financial advice. Consult a qualified professional before making decisions.

Should You Buy a Home in 2026? Here's How to Actually Figure That Out
Let's be honest: the rent-vs-buy debate has become exhausting. You've probably heard both sides a hundred times. "Renting is just paying someone else's mortgage." "Buying is the best investment you'll ever make." "You're crazy to buy with rates this high."
Here's the thing - none of those statements are categorically true. The right answer depends entirely on your numbers, your market, and your life plans. And in 2026, with 30-year fixed mortgage rates sitting near 6.5% (according to Freddie Mac's Primary Mortgage Market Survey) and housing inventory gradually improving, the math has shifted enough that it's worth running fresh calculations rather than relying on old assumptions.
This guide won't tell you what to do. What it will do is show you exactly how to build the comparison yourself, walk through illustrative scenarios at multiple price points, and help you understand which variables matter most. Let's get into it.
Step 1: Calculate the True Monthly Cost of Buying
Most people stop at the mortgage payment. That's a mistake. Here's what actually goes into the monthly cost of homeownership:
Putting it together for a $400,000 home with 20% down in an average-tax market:
That's a very different number than the $2,023 mortgage payment alone.

Step 2: Add the Opportunity Cost of Your Down Payment
This is the step most rent-vs-buy calculators skip, and it's one of the most important. When you put $80,000 down on a $400,000 home, that money is no longer working for you in the market. The question to ask is: what could that capital potentially generate if invested instead?
Investors and analysts often use long-run historical stock market returns as a reference point. The S&P 500's long-run average annual return (before inflation) is frequently cited at roughly 10% historically, though past performance doesn't predict future results - a reminder worth taking seriously. Even using a more conservative 6% to 7% assumption, $80,000 invested could generate $4,800 to $5,600 per year in potential returns, or about $400 to $467 per month in opportunity cost.
This doesn't mean renting automatically wins - homeownership builds equity and offers potential appreciation. But the down payment opportunity cost is real, and it belongs in your comparison. Adding it to the example above brings the total effective monthly cost of buying to roughly $3,273 to $3,340 for that $400,000 home scenario.
Of course, inflation erodes purchasing power over time, which affects both the real value of your home equity and the real returns on invested assets - another reason the long-term picture is more nuanced than a single monthly number suggests.
Step 3: Calculate the True Monthly Cost of Renting
Rent gets a bad reputation, but the renter's balance sheet looks different than you might think. Here's how to build the honest comparison:
But here's where the renter's math gets interesting: the difference between the true cost of owning and the cost of renting can be invested. If owning that $400,000 home effectively costs $3,300/month and a comparable rental is $2,200/month, the $1,100 monthly difference could, in theory, be invested in a diversified portfolio rather than locked into home equity.
Whether that actually happens is a behavioral and discipline question as much as a financial one - and it's worth being honest with yourself about it.
Run your numbers in five minutes. No bank login, no credit card.
Calculator Scenarios: Three Price Points Compared
The numbers below are illustrative examples using hypothetical scenarios. They are not predictions or advice - your actual costs will differ based on your location, credit score, loan terms, and local market conditions.
Scenario A: $300,000 home, $60,000 down (20%), comparable rent $1,700/month
Scenario B: $450,000 home, $90,000 down (20%), comparable rent $2,400/month
Scenario C: $600,000 home, $120,000 down (20%), comparable rent $3,100/month
These scenarios illustrate a consistent pattern in the current rate environment: in many markets, the monthly cost of ownership exceeds the cost of renting a comparable property. That doesn't automatically mean renting is better - it means the break-even timeline becomes the critical question.
Step 4: Calculate Your Break-Even Point
The break-even point is the number of years you'd need to stay in the home before the financial benefits of owning (equity building, potential appreciation, stable payments) outweigh the extra monthly costs compared to renting and investing the difference.
A rough break-even calculation considers:
As a general illustration: in Scenario A above, if the $717/month ownership premium were invested at a 6% annual return instead, the renter would accumulate meaningful additional wealth over 5 to 7 years - potentially offsetting the equity the buyer built. How appreciation and investment returns actually perform over that period is unknowable in advance, which is why the break-even is a range, not a fixed number.
A common working assumption among housing analysts is that buyers who plan to stay fewer than 3 to 5 years often find the math doesn't favor buying, primarily due to transaction costs on both ends of the sale. Beyond 7 to 10 years, homeownership has historically tended to look more favorable in most markets, though this is not guaranteed.
One important tax consideration: the mortgage interest deduction (available for mortgages up to $750,000 on a primary residence, per current IRS rules) can reduce the effective cost of ownership for itemizers. With the current standard deduction at $29,200 for married filing jointly in 2025 and the SALT deduction cap recently increased to $40,000, the calculus around itemizing has shifted for many homeowners. A tax professional can help model what this means for a specific situation.
The Numbers That Don't Fit in a Spreadsheet
Here's where the purely financial analysis runs out of runway. Some of the most important factors in the rent-vs-buy decision don't have clean numerical values:
The financial decision is part of the picture. But it's not the whole picture. Thinking carefully about your long-term budget and lifestyle priorities alongside the numbers tends to lead to better decisions than either pure math or pure emotion alone.
Disclaimer: This article is for general educational purposes only and does not constitute personalised financial, tax, mortgage, or real estate advice. The scenarios presented are illustrative hypothetical examples only. Individual results will vary based on local market conditions, personal financial circumstances, loan terms, and many other factors. Before making any home purchase or investment decision, consider consulting a qualified financial adviser, mortgage professional, and/or tax adviser who can review your specific situation.
The rent-vs-buy decision is just one piece of your long-term financial plan. fidser's free retirement planning tools help you model how major decisions today — including housing costs — affect your retirement readiness.
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