How Much House Can I Afford on a $100K Salary?

On a $100,000 salary with no other debts and a 20% down payment, you can comfortably afford a home in the $300,000-$350,000 range using the 28/36 rule. Banks might approve you for up to $420,000-$450,000, but that doesn’t mean you should spend that much. Here’s the full breakdown.

The 28/36 Rule Explained

The 28/36 rule is the standard guideline for mortgage affordability:

• 28% rule (front-end DTI): Your total monthly housing cost - mortgage payment, property taxes, insurance, and HOA fees - should not exceed 28% of your gross monthly income.
• 36% rule (back-end DTI): Your total monthly debt payments - housing plus car loans, student loans, credit cards, and all other debts - should not exceed 36% of your gross monthly income.

On a $100,000 salary:

• Gross monthly income: $8,333
• 28% of gross (housing max): $2,333/month
• 36% of gross (total debt max): $3,000/month

That $2,333/month housing budget is your starting point. But it’s not all going toward the mortgage - you need to subtract property taxes, insurance, and any HOA fees first.

What $2,333/Month Actually Buys

Let’s work backward from $2,333/month with typical costs:

Component	Monthly Cost
Total housing budget (28% of $8,333)	$2,333
Property taxes (1.1% of home value/12)	-$321 (on $350K home)
Homeowners insurance	-$167
HOA fees	-$0 (assuming none)
Available for mortgage P&I	$1,845

With $1,845/month available for principal and interest at 6.5% for 30 years, you can borrow approximately $292,000.

Add your 20% down payment:

• $292,000 loan ÷ 0.80 = $365,000 home price
• Down payment needed: $73,000

Comfortable home price on $100K salary: roughly $350,000-$365,000 with 20% down and no other debts.

What Banks Will Actually Approve

Lenders don’t use the conservative 28% rule anymore. Most conventional lenders approve borrowers with a back-end DTI up to 43-45%, and some go higher with compensating factors (strong credit, large reserves).

At a 43% back-end DTI on $100K salary:

• Max total debt payments: $3,583/month
• Subtract $500 car payment: $3,083 for housing
• Subtract taxes/insurance: ~$2,595 for mortgage P&I
• Max loan amount: ~$412,000
• Max home price (20% down): ~$515,000

Banks will approve $515,000 on the same salary where conservative math says $350,000. That’s a $165,000 gap between what’s approved and what’s comfortable.

This is how people end up “house poor” - technically qualified for a mortgage they can barely afford, with nothing left for savings, emergencies, or life.

The Real-World Budget on a $100K Salary

Gross income of $100,000 doesn’t mean $100,000 in your pocket. Here’s what your monthly finances actually look like:

Category	Monthly
Gross income	$8,333
Federal taxes (~17% effective)	-$1,417
State taxes (~5% average)	-$417
FICA (7.65%)	-$638
Net take-home	$5,861

Now let’s see what’s left after housing at different price points:

Home Price	Monthly Housing	Left After Housing	Left After All Bills
$300,000	$2,089	$3,772	~$2,200
$350,000	$2,333	$3,528	~$1,950
$400,000	$2,577	$3,284	~$1,700
$450,000	$2,822	$3,039	~$1,450
$500,000	$3,066	$2,795	~$1,200

“Left After All Bills” assumes $1,500/month for groceries, utilities, transportation, and insurance - a modest estimate.

At a $350,000 home, you have about $1,950/month for everything else: retirement savings, entertainment, travel, clothing, gifts, and emergencies. That’s tight but manageable.

At a $450,000+ home, you’re under $1,500/month for all discretionary spending - and that’s before contributing to retirement or building an emergency fund. This is the “house poor” zone.

The Down Payment Problem

The math above assumes 20% down. On a $350,000 home, that’s $70,000 in cash - plus another $7,000-$15,000 in closing costs.

If you don’t have $70,000+ saved, your options shift:

10% Down Payment ($35,000)

• Loan amount: $315,000
• Monthly P&I at 6.5%: $1,991
• PMI: ~$131/month (until you hit 20% equity)
• Total monthly housing: ~$2,589
• That’s 31% of gross income - above the 28% guideline

5% Down Payment ($17,500)

• Loan amount: $332,500
• Monthly P&I at 6.5%: $2,102
• PMI: ~$194/month
• Total monthly housing: ~$2,763
• That’s 33% of gross income - stretching

3% Down Payment ($10,500) - Conventional or First-Time Buyer

• Loan amount: $339,500
• Monthly P&I at 6.5%: $2,146
• PMI: ~$222/month
• Total monthly housing: ~$2,835
• That’s 34% of gross income - uncomfortable for most

The pattern is clear: less down payment means a higher monthly cost (larger loan + PMI). On $100K, dropping below 10% down pushes you past the comfort zone for a $350,000 home.

If you can’t put 20% down, consider a lower price point. A $300,000 home with 10% down has a total housing cost of about $2,220/month - right at 26.6% of gross.

How Existing Debts Change Everything

The 28/36 rule has two parts. If you have existing debts, the 36% back-end limit becomes the binding constraint:

Monthly Debts	Available for Housing	Max Comfortable Home
$0	$2,333	~$365,000
$300 (car payment)	$2,033	~$315,000
$500 (car + student loans)	$1,833	~$280,000
$800 (car + student loans + credit cards)	$1,533	~$230,000
$1,200 (heavy debt load)	$1,133	~$165,000

$500/month in debts reduces your buying power by roughly $85,000. This is why paying off debts before buying a home is so impactful - every $100/month you eliminate adds about $17,000 to your affordable home price.

For a full breakdown of how DTI works, see our guide on debt-to-income ratios for mortgages.

Location Changes Everything

A $100,000 salary buys vastly different homes depending on where you live:

Markets Where $100K Buys Comfortably ($300K-$400K median)

• Dallas-Fort Worth, TX: Median home ~$360,000. Property tax is high (~2.2%), but no state income tax. Comfortable buy.
• Charlotte, NC: Median home ~$350,000. Moderate taxes. Solid fit.
• Indianapolis, IN: Median home ~$275,000. Very comfortable.
• Tampa, FL: Median home ~$375,000. No state income tax helps.
• Phoenix, AZ: Median home ~$400,000. At the upper edge of comfortable.

Markets Where $100K Is Stretched ($500K+ median)

• Denver, CO: Median home ~$550,000. You’d need to move to the suburbs.
• Seattle, WA: Median home ~$780,000. Not realistic on $100K alone.
• Boston, MA: Median home ~$700,000. No chance at median.
• San Francisco, CA: Median home ~$1.2M. Forget it.
• New York City: Median home ~$750,000+. Maybe in the outer boroughs.

In expensive markets, $100K isn’t a high-income home-buying salary - it’s a renting salary, at least until you save a large down payment or buy much further out. See our Rent vs Buy calculator to compare the real math for your market.

The Income-to-Price Ratios That Work

A useful rule of thumb: your home should cost 2.5x-3.5x your gross annual income for comfortable affordability.

Income Multiple	Home Price	Affordability
2.0x	$200,000	Very comfortable
2.5x	$250,000	Comfortable
3.0x	$300,000	Moderate
3.5x	$350,000	Manageable
4.0x	$400,000	Stretched
4.5x	$450,000	House poor
5.0x+	$500,000+	Risky

This rule of thumb breaks down at very low or very high interest rates, but at 6-7% rates, it’s a solid sanity check. On $100K, staying at or below 3.5x ($350,000) keeps you in safe territory.

What If You’re a Dual-Income Household?

If “$100K salary” is your household income (two earners), the math stays the same - $350,000 is still comfortable. But if it’s $100K each (a $200K household), the picture changes dramatically:

• $200K gross monthly income: $16,667
• 28% housing budget: $4,667/month
• Comfortable home price: ~$650,000-$700,000

Dual income households should still be conservative, though. If one earner loses their job, can you survive on the remaining income? Buy based on one income or 1.5x one income, and treat the second income as savings.

Smart Moves Before You Buy

1. Pay Off High-Interest Debt

Every $100/month in debt payments costs you ~$17,000 in buying power. Paying off a $300/month car loan before applying adds $50,000 to your comfortable range.

2. Build a Full Down Payment + Reserves

Aim for 20% down to avoid PMI, plus 3-6 months of mortgage payments in reserves. On a $350,000 home, that’s about $70,000 down + $7,000-$14,000 in reserves = $77,000-$84,000 in savings before you buy.

3. Check Your Credit Score

The difference between a 680 and 760 credit score can be 0.25-0.75% in mortgage rate. On a $300,000 loan, a 0.5% rate difference costs about $30,000 over 30 years. Spend 6-12 months optimizing your credit before applying.

4. Get Pre-Approved (Not Pre-Qualified)

Pre-qualification is a guess. Pre-approval is a commitment based on verified income, assets, and credit. It tells you (and sellers) exactly what you can borrow.

5. Don’t Forget Closing Costs

Budget 2-5% of the purchase price for closing costs: $7,000-$17,500 on a $350,000 home. This is in addition to your down payment.

The Bottom Line

On a $100,000 salary, you can comfortably afford a $300,000-$365,000 home with 20% down and minimal other debts. Banks may approve you for $450,000-$500,000, but spending that much leaves no margin for retirement savings, emergencies, or enjoying life.

The conservative path: buy at 3x-3.5x your income, put 20% down, and keep total housing under 28% of gross. It’s not the most home you can technically buy - it’s the most home you can buy without regretting it.

Run Your Own Numbers

Your debts, down payment, local tax rates, and interest rate all change the calculation. Use our How Much House Can I Afford calculator to plug in your exact situation and see the comfortable vs. maximum price ranges for your income.

Related Guides

• What Is a Good Debt-to-Income Ratio for a Mortgage? - Understanding front-end vs back-end DTI and the exact thresholds lenders require for FHA, VA, and conventional loans.
• Should I Rent or Buy a House? - If buying at your price point doesn’t make financial sense, renting and investing may build more wealth.