Last updated: August 6, 2026
How Much House Can You Actually Afford?
This article is educational and general in nature, not personalized financial advice. See our Editorial Process for more on how we approach this kind of content.
Lenders will often approve you for a mortgage larger than you should comfortably take on — approval and affordability are two different questions, and only one of them is actually about your well-being. This guide walks through how to calculate a number you can genuinely afford, not just one a lender is willing to lend you.
Why "Approved For" Isn't the Same as "Can Afford"
Mortgage approval is based primarily on your income, existing debt, and credit profile — it doesn't account for your other financial goals, how much you want to save, or your personal comfort with monthly financial pressure. A lender's maximum approval amount often assumes you're willing to direct a very large share of your income toward housing, with little room left for anything else. The number you can afford, in a way that still lets you save, handle emergencies, and live comfortably, is frequently lower than the number you'd be approved for.
The Standard Affordability Framework
A commonly used starting guideline: keep your total housing costs — mortgage principal and interest, property tax, homeowners insurance, and any HOA fees — under roughly 28% of your gross monthly income, and keep your total debt payments (including the mortgage) under about 36%. These are general benchmarks, not universal rules, but they provide a useful starting point before adjusting for your specific situation.
A Worked Example
| Item | Amount |
|---|---|
| Gross monthly income | $7,000 |
| 28% housing guideline | $1,960 |
| Existing monthly debt (car loan, student loan) | $400 |
| Remaining room under 36% total debt guideline | $2,520 - $400 = $2,120 available for housing |
In this example, the more conservative of the two guidelines (the 28% housing-only limit) suggests a target monthly housing payment around $1,960 — even though the debt-to-income guideline would technically allow slightly more. Using the more conservative number as your actual target, rather than the maximum the math permits, builds in a natural cushion.
Adjusting the Framework for Your Real Life
The 28%/36% guidelines are a starting point, not a personalized answer. Consider adjusting downward if:
- Your job or income is less stable than a typical salaried position — commission-based income, self-employment, or a field with frequent layoffs all warrant more conservative targets
- You have other major financial goals you don't want housing costs to crowd out, like aggressive retirement saving or a specific savings goal
- You live in a high cost-of-living area where other expenses (childcare, transportation, utilities) already consume a larger share of income, leaving less realistic room for housing than the guideline assumes
- You have dependents or expect to soon, since childcare and related costs can be substantial and competing for the same monthly budget
Consider adjusting upward, with caution, only if you have unusually low other expenses, no other debt, and strong income stability — and even then, it's worth stress-testing the higher number against a temporary income disruption before committing to it.
Don't Forget the Costs Beyond the Mortgage Payment
| Cost | Why It's Easy to Underestimate |
|---|---|
| Property tax | Can increase after a sale as the home is reassessed at the new purchase price, sometimes significantly higher than what the previous owner paid |
| Homeowners insurance | Varies significantly by location and home characteristics — get an actual quote before finalizing your budget, not a rough guess |
| Maintenance and repairs | A commonly used rule of thumb is roughly 1% of the home's value annually — a cost that simply doesn't exist when renting |
| HOA fees, if applicable | Can increase over time and may include special assessments for larger community projects |
| Utility cost changes | Moving from a smaller rental to a larger home often means meaningfully higher heating, cooling, and water costs |
Building these into your monthly affordability calculation — not just the mortgage principal and interest — gives a far more accurate picture than looking at the mortgage payment alone.
How Your Down Payment Affects Affordability
A larger down payment directly lowers your monthly mortgage payment, and depending on the loan type, may also help you avoid private mortgage insurance, an added monthly cost required on many loans with a smaller down payment. This means the "affordable" home price for the same monthly budget can shift meaningfully based on how much you put down upfront — see our guide to saving for a down payment faster for strategies to build that amount more quickly.
How Interest Rates Change What You Can Afford
The interest rate on your mortgage has a significant effect on your monthly payment, and by extension, on how much home fits your budget — a rate difference of even one percentage point can shift your affordable purchase price meaningfully, since more of each payment goes toward interest rather than principal at a higher rate. This is worth understanding for two reasons: first, your credit profile directly affects the rate you qualify for, so strengthening your credit before applying (see our credit guide) can expand your affordable range. Second, if you're calculating affordability based on today's rates, it's worth stress-testing your budget against a somewhat higher rate as well, particularly if you're shopping over an extended period where rates could shift before you actually close.
Step-by-Step: Calculating Your Number
- Calculate 28% of your gross monthly income as a starting housing budget ceiling.
- Subtract your other existing monthly debt payments from 36% of your gross income, and compare that figure to your 28% housing number — use whichever is lower as your working target.
- Add in realistic estimates for property tax, insurance, and maintenance for homes in your target price range and area, not just the mortgage principal and interest.
- Adjust down based on your income stability, other financial goals, and local cost of living, using the factors above.
- Get pre-approved to confirm your calculated number is realistic given your credit and income, but treat the pre-approval ceiling as informational — not your actual target.
Frequently Asked Questions
Should I spend up to my full mortgage pre-approval amount?
Generally, no — pre-approval reflects the maximum a lender is willing to lend based on your income, debt, and credit, not necessarily an amount that leaves comfortable room in your budget for savings, emergencies, and other goals. Most people are better served calculating their own affordability number using the framework above and treating the pre-approval amount as a ceiling, not a target.
What if the house I want costs more than my calculated affordable amount?
This is a common and difficult moment in the home-buying process. Options generally include saving longer for a larger down payment to lower the monthly payment, looking in a lower price range or different area, or genuinely reassessing whether stretching your budget is worth the tradeoff — and if so, understanding exactly what it would mean for your other financial goals before committing.
Does the 28%/36% rule apply the same way everywhere?
It's a general starting guideline, and its practical fit varies by location — in a very high cost-of-living area, other expenses often already consume a larger share of income than the guideline assumes, which can make even a 28% housing allocation feel tight. It's meant as a starting point for the calculation, not a rule that applies identically everywhere.
How much should I budget for closing costs on top of the home price?
Closing costs are typically a percentage of the loan amount, covering fees like appraisal, title insurance, and loan origination — see our first-time homebuyer checklist for the full breakdown of costs beyond the purchase price itself.
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Where to Go Next
Related guides on ClearCents:
- How to Budget Your Money: The Complete Guide for Beginners
- How Credit Scores Work: The Complete Guide
Calculate Your Own Number Before You Shop
Do this calculation before you start browsing listings, not after falling in love with a home outside your realistic budget. A number grounded in your actual finances — not the maximum a lender will approve — protects you from the financial strain that pushes so many new homeowners into regretting how much they stretched.
Ready to build your down payment faster? Our complete guide to saving for a down payment covers concrete strategies to hit your target sooner.