How Much House Can I Afford? (Complete 2026 Guide)

Learn the 28/36 rule with real 2026 numbers. See exactly how much house you can afford on $50k–$150k salary, how rates and debt change your budget, and the hidden costs lenders won't mention.

14 min read Yun Zhang
#mortgage #home-buying #budgeting

Updated: August 9, 2026

Buying a home is the largest financial decision most people will ever make. Get it right, and you build wealth for decades. Get it wrong, and you end up “house poor” — drowning in payments while your retirement accounts sit empty.

The question every buyer asks is: “How much house can I actually afford?” Not how much the bank says you can borrow — banks are happy to lend you more than is healthy — but what fits your life and your budget.

This guide gives you the exact formula lenders use, walks through real-world salary examples at 2026 rates, and shows you the hidden costs most first-time buyers miss. Every number here is reproducible with our mortgage calculator and a standard amortization formula.

The 28/36 Rule: The Gold Standard

Lenders and financial advisors use a simple guideline called the 28/36 rule. It’s been around for decades because it works — it represents the threshold where most borrowers stop being able to comfortably handle their payments.

Front-end ratio (28%)

Your total monthly housing payment should be no more than 28% of your gross (pre-tax) monthly income. “Housing payment” means all four of these combined — often abbreviated PITI:

Back-end ratio (36%)

Your total monthly debt payments — including your housing payment plus credit cards, car loans, student loans, and any other debt — should be no more than 36% of your gross monthly income.

The back-end ratio is the one that really matters. A lender might approve your front-end ratio, but if your back-end (total debt) creeps above 43%, you’re in the danger zone where one unexpected expense — a job loss, a medical bill, a car repair — can trigger default.

Why these specific numbers?

Banks learned the hard way that when these ratios get too high, borrowers default. The 28/36 rule isn’t arbitrary — it comes from decades of mortgage performance data. During the 2008 financial crisis, loans with back-end DTIs above 45% defaulted at roughly 3× the rate of loans under 36%.

⚠️ Important: These are maximums, not goals. Many financial planners recommend targeting 25% or lower for housing to leave room for retirement savings, emergencies, and life. The bank’s ceiling is not your ceiling.

The Quick Multiplier: 3× to 4× Your Salary

Before diving into the detailed math, here’s a sanity-check shortcut that works in the 2026 rate environment (around 6.5%–7% on a 30-year fixed):

So on a $100,000 salary, that’s a home priced between $300,000 and $400,000. On $60,000, you’re looking at $180,000–$240,000. These multipliers assume 20% down and current rates; they shift if rates move dramatically.

This shortcut breaks down at the extremes (very high or very low cost-of-living areas), so use it only as a first filter — then do the real math below.

Step-by-Step: How to Calculate Your Real Budget

Let’s walk through the math for five common salaries. We’ll use realistic 2026 assumptions:

Example 1: $50,000 salary

After subtracting estimated property tax ($140/month) and insurance ($117/month), that leaves about $910/month for principal and interest.

At 6.5% over 30 years, $910/month supports roughly a $114,000 mortgage. Add your 20% down payment and you can afford a home priced around $142,000. In most U.S. metros, this means looking at condos, townhomes, or moving to a lower-cost region.

Example 2: $60,000 salary

After taxes and insurance (~$267 combined), you have about $1,133/month for P&I.

At 6.5% × 30 years, that supports a $142,000 mortgage, meaning a home priced around $178,000 with 20% down.

Example 3: $80,000 salary

After taxes and insurance on a $240k home (~$220 + $117), you have about $1,530/month for P&I.

At 6.5% × 30 years, that supports a $192,000 mortgage, meaning a home priced around $240,000 with 20% down.

Example 4: $100,000 salary

After taxes and insurance on a $310k home (~$284 + $117), about $1,932/month is left for P&I.

At 6.5% × 30 years, that’s a $242,000 mortgage — supporting a home priced around $303,000 with 20% down.

Example 5: $150,000 salary

After taxes and insurance on a $460k home (~$422 + $117), about $2,961/month is left for P&I.

At 6.5% × 30 years, that’s a $371,000 mortgage — supporting a home priced around $464,000 with 20% down.

The full table at 2026 rates

SalaryMax home priceMonthly P&ITotal monthly housing (PITI)
$50,000~$142,000~$910~$1,167
$60,000~$178,000~$1,133~$1,400
$80,000~$240,000~$1,530~$1,867
$100,000~$303,000~$1,932~$2,333
$120,000~$366,000~$2,335~$2,800
$150,000~$464,000~$2,961~$3,500

All figures assume 20% down, 6.5% rate, 30-year fixed, average taxes and insurance, no other debt.

Notice something important: doubling your salary from $60k to $120k does not double your affordable home price. Taxes, insurance, and the amortization curve mean the relationship isn’t linear — but the jump is still substantial.

How Interest Rates Reshape Your Budget

The examples above assume 6.5%. But rates move, and the impact is bigger than most buyers realize. On a $300,000 mortgage (30-year fixed):

RateMonthly P&ITotal interest over 30 years
3.5%$1,347$184,976
5.5%$1,703$313,212
6.5%$1,896$382,142
7.5%$2,098$455,424
8.5%$2,306$530,479

That’s a $959/month swing between 3.5% and 8.5% — equivalent to over $345,000 in lifetime interest. At 3.5% (the 2021 environment), a $60k salary could stretch to a $290k home. At 7.5%, the same salary caps out around $155k. The rate you lock in matters more than the home you pick.

This is why shopping multiple lenders is non-negotiable. A 0.5% rate difference sounds small, but on a $400,000 loan it’s about $137/month — $49,000 over the life of the loan. Get quotes from at least three lenders (banks, credit unions, mortgage brokers) before committing.

The Hidden Costs Lenders Don’t Mention

The 28% rule covers PITI, but the real cost of homeownership extends well beyond your monthly payment. First-time buyers routinely underestimate these:

Closing costs (2%–5% of loan amount)

On a $300,000 mortgage, expect $6,000–$15,000 in closing costs: lender fees, title insurance, appraisal, origination fees, and prepaid escrow for taxes and insurance. This is cash you pay upfront, on top of your down payment.

Property tax variation by state

Property taxes vary wildly by location — and they’re baked into your monthly payment via escrow:

StateEffective property tax rateAnnual tax on $400k home
Hawaii0.28%$1,120
Colorado0.51%$2,040
North Carolina0.77%$3,080
Texas1.69%$6,760
New Jersey2.49%$9,960

A $400,000 home in New Jersey (2.49% tax) costs $9,960/year in property tax alone — that’s $830/month, which counts against your 28% housing ratio. The same home in Colorado (0.51% tax) costs just $2,040/year — a difference of $660/month. Location isn’t just about the home price; it’s about the ongoing tax burden.

Homeowners insurance (and why it’s rising)

Insurance averages $1,400/year nationally, but it’s climbed sharply. In hurricane-prone Florida, windstorm coverage alone can exceed $4,000–$6,000/year. In wildfire zones of California, some insurers have stopped writing new policies entirely. Always get an insurance quote before making an offer — don’t assume the national average.

PMI (if you put down less than 20%)

Private mortgage insurance protects the lender, not you, and typically costs 0.5%–1% of the loan annually. On a $300,000 mortgage, that’s $1,500–$3,000/year of pure waste. You can request removal at 80% loan-to-value, and it auto-terminates at 78% — but until then, it’s money that buys you nothing.

Maintenance and repairs (1%–2% of home value per year)

This is the one most buyers forget. A home costing $400,000 needs roughly $4,000–$8,000/year in maintenance: roof repairs, HVAC servicing, water heater replacements, plumbing fixes, paint, landscaping. Older homes skew higher. Set aside 1%–2% of the home’s value each year, or you’ll be financing repairs on a credit card at 22% interest.

The real all-in cost

Add it all up, and the true monthly cost of a $400,000 home at 6.5% looks like this:

CostMonthly amount
Principal & interest$2,022
Property tax (1.1% avg)$367
Homeowners insurance$117
Maintenance (1.5%/yr)$500
Total true cost~$3,006/month

That’s $1,000/month more than the P&I alone. If your budget only accounts for the mortgage payment, you’re setting yourself up for a cash-flow crunch within the first year.

How Your Existing Debt Shrinks Your Budget

The back-end ratio (36%) is where many buyers get tripped up. Lenders count all monthly debt obligations against you.

Imagine you earn $80,000 ($6,667/month gross) and have:

That’s $900/month in debt. Your back-end limit is 36% × $6,667 = $2,400/month total debt, so your remaining housing budget drops from $1,867 to $1,500/month — a $367/month cut that translates to roughly $60,000 less home.

Pro tip: Pay down consumer debt before buying a house. It improves both your DTI ratio and your credit score, qualifying you for a better rate. A $400/month car payment doesn’t just cost you $400/month — it costs you tens of thousands in reduced borrowing power.

Down Payment: Why 20% Isn’t Always Right

Putting down 20% is the gold standard because it avoids PMI — but it’s not the only path, and waiting to save 20% can sometimes cost you more than the PMI would have.

Down paymentLoan typePMI required?Typical use case
20%+ConventionalNoLowest monthly cost, strongest offer
5%–19%ConventionalYes (until 80% LTV)Common for first-time buyers
3.5%FHAYes (mortgage insurance)Lower credit scores
3%Conventional 97YesFirst-time buyer programs
0%VA / USDANoVeterans / rural areas

The trade-off: a smaller down payment means you borrow more, pay PMI, and have less equity cushion — but it also means you buy sooner, start building equity, and lock in today’s price instead of watching prices rise while you save.

The math isn’t always obvious. If home prices in your area are rising 5%/year and you need 3 years to save 20%, the home you want may have appreciated 15% — wiping out any PMI savings. Run the numbers for your specific situation; the 20% rule isn’t universal.

Red Flags: When “Affordable” Isn’t

The bank will often approve you for more than the 28/36 rule allows — sometimes significantly more. Conventional loans can go up to 45%–50% DTI with strong credit and reserves. Don’t assume approval equals affordability.

Signs you’re shopping above your real budget:

A conservative rule of thumb: aim for a home priced at 2.5×–3× your gross annual income, not the 4×–5× banks often allow. The homeowners I know who are happiest with their purchase almost universally bought less house than they were approved for.

Run Your Own Numbers

The fastest way to know your real budget is to work backwards from a monthly payment you’re comfortable with. Use our free mortgage calculator — enter the home price you’re considering, your down payment, and today’s rate, and see instantly:

Try different scenarios — what if you put down 15% instead of 20%? What if rates drop to 5.5%? What if you buy a $50k cheaper home and invest the difference? The numbers tell the truth that real estate agents and bankers won’t.

For the debt side of the equation, our loan calculator and credit card payoff calculator can show you exactly how much borrowing power you’d reclaim by paying down existing debt first.

Frequently Asked Questions

Can I afford a house making $50,000 a year?

On $50,000/year ($4,167/month gross), the 28% rule caps your housing payment at $1,167/month. With 20% down and a 6.5% rate, that supports a mortgage of about $114,000, meaning a home priced around $142,000. In most U.S. metros, this means looking at condos, townhomes, or moving to a lower-cost region. The USDA loan program (0% down, rural areas) can help stretch this further.

How much income do I need for a $300,000 house?

To stay within the 28% rule on a $300,000 home with 20% down (so a $240,000 mortgage at 6.5%), your monthly P&I is about $1,518. Add property tax ($275) and insurance ($117), and your total housing payment is roughly $1,910/month. You’d need a gross income of $6,820/month, or about $82,000/year.

How much income do I need for a $500,000 house?

With 20% down ($100,000) on a $500,000 home, you’d borrow $400,000 at 6.5% = $2,528/month P&I. Add property tax ($458) and insurance ($117), and your total housing payment is roughly $3,103/month. To stay within 28%, you’d need a gross income of about $11,082/month, or $133,000/year. In high-tax states like New Jersey or Texas, add another $20k–$30k to that.

Is the 28/36 rule outdated?

The ratios are still sound, but today’s reality makes them harder to hit. With home prices rising faster than wages since 2020, many first-time buyers exceed 28%. If you must stretch, prioritize keeping the back-end ratio (total debt) under 36% — that one matters most for long-term financial health. The front-end ratio is more flexible; the back-end is where defaults happen.

What credit score do I need to buy a house?

A higher score doesn’t just get you approved — it can save you tens of thousands in interest over the loan’s life. A 760 score vs a 680 score can mean a 0.5%–1% lower rate, which on a $400,000 loan is $137–$275/month.

Should I wait for rates to drop before buying?

Trying to time mortgage rates is like timing the stock market — rarely successful and often costly. If you can afford the home at today’s rate and plan to stay 5+ years, buying now and refinancing later if rates drop is usually better than waiting. If rates fall, prices often rise as more buyers enter the market, erasing your savings. Run the refinance break-even math for your specific situation.


The Bottom Line

“How much house can I afford?” is really two questions:

  1. How much will a bank lend me? (Often too much.)
  2. How much should I spend? (Usually less than #1.)

The 28/36 rule answers #2. Use it as your ceiling, but aim lower if you want room for retirement savings, travel, kids’ education, and an actual life. The most financially secure homeowners didn’t buy the most house they could — they bought the least house that made them happy, and invested the difference.

Three numbers to internalize before you shop:

Run your numbers with our free mortgage calculator, and remember: a home you can comfortably afford is worth far more than a bigger one that keeps you up at night.

Try it yourself

Numbers are better when they're your numbers. Run your own numbers with our free calculator.

Open Calculator
Back to all articles