How Much House Can I Afford? The Complete Guide
Learn how to calculate home affordability using the 28/36 rule, DTI ratios, and real lender standards. Includes step-by-step examples.
Figuring out how much house you can afford is the single most important step in the home-buying process — and the one most people rush through. Buy too much house and you are stuck making painful trade-offs for the next 30 years. Buy within your means and homeownership becomes the wealth-building engine it is supposed to be. This guide walks you through the exact math lenders use, the costs most buyers overlook, and practical strategies to maximize your purchasing power without overextending your budget.
The 28/36 Rule Explained
The 28/36 rule is the cornerstone of mortgage qualification for conventional loans. It consists of two ratios that lenders use to gauge whether you can comfortably handle a housing payment.
Front-End Ratio: 28% of Gross Income
The front-end ratio says your total monthly housing cost — principal, interest, property taxes, and homeowner's insurance (PITI) — should not exceed 28% of your gross monthly income. If you earn $80,000 per year, your gross monthly income is $6,667. Twenty-eight percent of that is $1,867 per month for all housing expenses combined.
Back-End Ratio: 36% of Gross Income
The back-end ratio includes your housing costs plus all other recurring debt payments — car loans, student loans, credit card minimums, and personal loans. At $80,000 per year, your total monthly debt payments should stay below $2,400 (36% of $6,667). If you already pay $400/month toward a car loan and $200/month toward student loans, that leaves only $1,800 for housing, which is slightly below the $1,867 front-end limit and becomes the binding constraint.
Use our Home Affordability Calculator to plug in your own income and debts and see your personalized affordability range in seconds.
What Lenders Actually Look At
The 28/36 rule is a starting point, but lenders evaluate several additional factors that can raise or lower your approval amount.
Credit Score
Your credit score directly affects the interest rate you are offered, which in turn affects how much home you can afford at a given monthly payment. A borrower with a 760+ score might get a 6.5% rate, while someone at 640 might see 7.5% or higher. On a $300,000 loan, that one-point difference adds roughly $200 per month to the payment — or reduces your maximum purchase price by about $30,000 to keep the same monthly cost.
Employment and Income History
Lenders want to see at least two years of stable income. If you are salaried, this is straightforward. If you are self-employed, a freelancer, or earn commission-based income, lenders typically average your last two years of tax returns. Gaps in employment or declining income trends can reduce the amount you qualify for.
Down Payment and Reserves
The size of your down payment affects your loan-to-value (LTV) ratio and whether you need private mortgage insurance. Most lenders also want to see two to six months of mortgage payments in liquid reserves after closing, depending on the loan type and property. The more reserves you have, the lower risk you represent.
Loan Type Matters
FHA loans allow a back-end DTI of up to 43% — and sometimes as high as 50% with compensating factors like excellent credit or significant cash reserves. VA loans have no official front-end DTI limit at all, instead using a residual income test. These programs can significantly expand what you qualify for compared to conventional guidelines.
A Step-by-Step Affordability Calculation
Let's work through a complete example so you can see exactly how the numbers flow from income to maximum home price.
Step 1: Calculate Your Maximum Monthly Housing Payment
Start with gross annual income: $80,000. Divide by 12 to get gross monthly income: $6,667. Multiply by 0.28 for the front-end limit: $1,867/month maximum for PITI.
Step 2: Check the Back-End Constraint
Multiply $6,667 by 0.36: $2,400 maximum for all debt. Subtract existing debt payments ($400 car + $200 student loans = $600): $1,800 left for housing. Since $1,800 is less than $1,867, your binding limit is $1,800/month.
Step 3: Back Out Taxes and Insurance
Estimate property taxes at roughly 1.1% of home value annually and homeowner's insurance at about $1,200/year. For a $300,000 home, that works out to $275/month in taxes and $100/month in insurance, totaling roughly $375/month. Subtract that from your $1,800 housing budget: $1,425/month available for principal and interest (P&I).
Step 4: Convert P&I Budget to a Maximum Loan Amount
At a 7% rate on a 30-year fixed mortgage, $1,425/month in P&I supports a loan of approximately $214,000. You can verify this instantly with our Mortgage Calculator.
Step 5: Add Your Down Payment to Get Maximum Home Price
If you have $25,000 saved for a down payment, your maximum purchase price is roughly $239,000 ($214,000 loan + $25,000 down). With 10% down, the math works a bit differently — $214,000 represents 90% of the home value, so the maximum price would be about $238,000. Either way, you are looking at a home in the $235,000 to $240,000 range.
Use the Down Payment Calculator to see how different down payment amounts change your buying power and PMI costs.
Hidden Costs Most Buyers Forget
The mortgage payment is only part of what homeownership actually costs. Failing to account for these expenses is how people end up “house poor” — technically able to make the payment but unable to enjoy life.
Closing Costs: 2% to 5% of the Purchase Price
On a $240,000 home, expect to pay $4,800 to $12,000 in closing costs. This includes lender fees, title insurance, appraisal, attorney fees, prepaid taxes, and prepaid insurance. These are due at closing and come out of your cash — they are not rolled into the loan in most cases. Our Closing Cost Calculator gives you a detailed estimate based on your state and loan type.
Maintenance and Repairs: 1% to 2% of Home Value Per Year
Budget at least 1% of your home's value annually for maintenance — that is $2,400 to $4,800 per year ($200 to $400/month) on a $240,000 home. Older homes or homes with deferred maintenance may need 2% or more. This covers everything from a new water heater ($1,200) to roof repairs ($5,000+) to routine items like HVAC servicing, gutter cleaning, and landscaping.
HOA Fees
If you buy in a community with a homeowners association, monthly dues typically range from $100 to $400 for condos and $50 to $200 for single-family home communities. These fees are included in your DTI calculation by lenders, so they directly reduce the mortgage amount you qualify for.
Utilities, Furniture, and Moving Costs
Moving from a rental to a house usually increases utility costs by $100 to $300 per month due to larger square footage. You will also need to furnish rooms you did not have before — a typical first-time buyer spends $5,000 to $15,000 on furniture and appliances in the first year. Moving costs add another $1,000 to $5,000 depending on distance.
How to Increase What You Can Afford
If the numbers above feel limiting, there are concrete steps you can take to expand your budget without taking on uncomfortable risk.
Pay Down Existing Debt First
Every $100/month in debt you eliminate translates to roughly $100/month more in housing budget. Paying off a $400/month car loan effectively increases your max home price by $60,000 or more, depending on the interest rate. This is the single most impactful thing most buyers can do. If you have credit card debt, the return on paying it off before house shopping is enormous — both for DTI improvement and credit score gains.
Improve Your Credit Score
Moving from a 680 credit score to a 740+ score can lower your mortgage rate by 0.5% to 1.0%. On a $250,000 loan, a half-point rate reduction saves about $80/month — or lets you afford roughly $12,000 more in home price at the same monthly payment. Key moves: pay all bills on time, reduce credit utilization below 30% (ideally below 10%), and avoid opening new credit accounts in the six months before applying for a mortgage.
Save a Larger Down Payment
A larger down payment does three things: it reduces the loan amount (lower monthly payment), it can eliminate PMI (saving $50 to $200/month), and it may qualify you for a better interest rate. Going from 5% down to 20% down on a $300,000 home eliminates roughly $150/month in PMI and reduces the loan by $45,000 — freeing up significant monthly cash flow.
Consider FHA or VA Loans
FHA loans allow down payments as low as 3.5% and are more flexible on credit scores (minimum 580 for 3.5% down). VA loans offer 0% down with no PMI for eligible veterans and active-duty service members. These programs can meaningfully expand your purchasing power. Run the numbers through our Mortgage Calculator to compare conventional vs. FHA vs. VA scenarios side by side.
Buy in a Lower-Cost Area
Property taxes vary dramatically by location — from under 0.5% in Hawaii to over 2.0% in New Jersey and Illinois. On a $300,000 home, the difference between a 0.8% and 2.0% tax rate is $300/month. Moving even one county over can sometimes cut your property tax burden significantly while keeping your commute reasonable.
A Realistic Budget Framework
Instead of blindly targeting the 28% ceiling, consider building your housing budget from the bottom up. Start with your take-home pay (not gross), subtract your non-negotiable expenses (food, transportation, insurance, debt payments, retirement savings), and see what remains. Many financial planners recommend keeping total housing costs at 25% or less of gross income to maintain a comfortable lifestyle.
For the $80,000 earner in our example, that means targeting a housing budget closer to $1,667/month instead of the $1,867 maximum — a seemingly small difference that translates to $200/month in breathing room. Over 30 years, that $200/month invested at 7% returns grows to over $240,000. The house you can afford and the house you should buy are often different numbers, and the gap between them is where financial freedom lives.
Frequently Asked Questions
How much house can I afford on a $60,000 salary?
On a $60,000 salary with no other debts, you could afford roughly $1,400 per month in housing costs using the 28% rule. Assuming a 30-year mortgage at 7%, a 5% down payment, and typical taxes and insurance, that translates to a home price of approximately $225,000 to $250,000. Your actual number depends on your credit score, existing debts, and local property tax rates.
Is the 28/36 rule still relevant in 2026?
The 28/36 rule remains the gold standard for conventional loan qualification, and most financial advisors still recommend it as a ceiling rather than a target. However, many lenders now approve borrowers at higher ratios — FHA loans allow up to 50% back-end DTI with compensating factors. Just because you can get approved at a higher ratio does not mean you should, as it leaves very little room for savings, emergencies, or lifestyle spending.
Does my student loan payment count toward DTI?
Yes, student loan payments are included in your back-end debt-to-income ratio. Lenders use the payment shown on your credit report — typically the income-driven repayment amount if you are enrolled in one. If your loans are in deferment or forbearance, most lenders still calculate a payment at 0.5% to 1% of the total balance per month for DTI purposes.
How much should I save for a down payment?
Conventional loans require as little as 3% down, FHA loans require 3.5%, and VA loans require 0%. However, putting down less than 20% means you will pay private mortgage insurance (PMI), which adds $50 to $200 per month per $100,000 borrowed. A 10% to 20% down payment is the sweet spot for most buyers because it reduces PMI costs while keeping cash available for closing costs and reserves.
Should I buy the most expensive house I qualify for?
No — qualifying for a mortgage amount and comfortably affording it are two different things. Lenders do not account for your retirement savings, childcare, vacations, or non-debt lifestyle spending. Most financial planners recommend keeping your housing payment at 25% or less of gross income to leave breathing room for everything else in your budget.