By 
Buying a home is probably the biggest financial decision you will ever make. And one of the most dangerous moments in the process is when a lender tells you how much you are “approved for” and you assume that number is what you can actually afford.
It is not. Lenders will approve you for far more house than is financially comfortable. Their job is to assess risk for the bank, not to make sure you can still afford vacations, retirement contributions, and the occasional dinner out.
Your job is to figure out what you can actually handle, and that is exactly what this guide will help you do. We will walk through the rules lenders use, the costs most first-time buyers forget about, and real examples at $75,000 and $100,000 salaries so you can see where you actually stand.
The 28/36 Rule: Your Starting Point
The 28/36 rule is the classic guideline that lenders and financial planners have used for decades. It has two parts:
- The 28% rule: Your total monthly housing costs should not exceed 28% of your gross monthly income. Housing costs include your mortgage payment (principal and interest), property taxes, homeowners insurance, and HOA fees if applicable.
- The 36% rule: Your total monthly debt payments, including housing plus car loans, student loans, credit card minimums, and any other debt, should not exceed 36% of your gross monthly income.
Quick Math
| Gross Annual Salary | Gross Monthly Income | Max Housing (28%) | Max Total Debt (36%) |
|---|---|---|---|
| $60,000 | $5,000 | $1,400 | $1,800 |
| $75,000 | $6,250 | $1,750 | $2,250 |
| $100,000 | $8,333 | $2,333 | $3,000 |
| $125,000 | $10,417 | $2,917 | $3,750 |
These numbers use gross income, meaning before taxes. That is important because your take-home pay is significantly lower. A $75,000 salary might net around $4,700 per month after federal and state taxes. Spending $1,750 on housing out of $4,700 take-home is 37% of your actual cash flow. That is tight.
This is why many financial planners recommend staying well under the 28% threshold if possible, especially if you are still building wealth in your 20s and want room for investing.
How Lenders Calculate Your DTI
When you apply for a mortgage, lenders calculate your debt-to-income ratio (DTI) to decide how much to lend you. There are two types:
- Front-end DTI: Housing costs divided by gross monthly income. Most lenders want this at or below 28%, though some will go to 31% or higher.
- Back-end DTI: All monthly debt payments (housing plus everything else) divided by gross monthly income. Most conventional loans cap this at 36% to 43%, though FHA loans allow up to 50% in some cases.
What Counts as Debt for DTI
Lenders pull your credit report and include:
- Proposed mortgage payment (principal, interest, taxes, insurance)
- Car loan or lease payments
- Student loan payments (even if on an income-driven plan, lenders may use 0.5% to 1% of the total balance)
- Credit card minimum payments
- Personal loan payments
- Child support or alimony
What does not count: utilities, groceries, subscriptions, insurance premiums other than homeowners, daycare, or any expense not on your credit report.
This is a key problem. Lenders ignore a huge portion of your actual living expenses. A family spending $1,500 per month on childcare looks identical to a family spending $0 on childcare in the lender’s DTI calculation. That is why “approved for” and “can comfortably afford” are two very different numbers.
What “Approved For” vs. “Can Afford” Really Means
Let us be direct: a mortgage pre-approval is the maximum a bank is willing to risk on you, not a spending target.
A lender might approve you for a $400,000 mortgage. That does not mean a $400,000 home is wise. The bank profits from lending you more money. If you default, they take the house. Their downside is limited. Yours is not.
A good rule of thumb beyond the 28/36 framework: your total home price should be no more than 3 to 3.5 times your gross annual income if you want a comfortable financial life with room for saving and investing. At $100,000 income, that means targeting homes in the $300,000 to $350,000 range, not the $450,000 the bank might approve you for.
Down Payment Requirements in 2026
The “you need 20% down” rule is a myth. Here is what the major loan types actually require:
| Loan Type | Minimum Down Payment | Key Requirements |
|---|---|---|
| Conventional | 3% to 5% (first-time buyers), up to 20% | Credit score 620+, PMI required below 20% |
| FHA | 3.5% | Credit score 580+, mortgage insurance required for life of loan |
| VA | 0% | Active military or veterans only, no PMI |
| USDA | 0% | Rural areas only, income limits apply |
What This Looks Like in Dollars
| Home Price | 3.5% Down (FHA) | 5% Down (Conv.) | 10% Down | 20% Down |
|---|---|---|---|---|
| $250,000 | $8,750 | $12,500 | $25,000 | $50,000 |
| $350,000 | $12,250 | $17,500 | $35,000 | $70,000 |
| $450,000 | $15,750 | $22,500 | $45,000 | $90,000 |
A 20% down payment eliminates private mortgage insurance (PMI) and gives you lower monthly payments, but it also means waiting years longer to buy in many markets. If you are working on saving for a down payment, even 10% down is a solid middle ground.
The HUD first-time homebuyer page is a good starting point for understanding federal programs that can help with down payment assistance.
The PMI Problem
If you put less than 20% down on a conventional loan, you will pay private mortgage insurance (PMI). This protects the lender, not you, if you default.
Typical PMI costs: 0.5% to 1.5% of the loan amount per year, paid monthly.
| Loan Amount | PMI at 0.75%/year | Monthly PMI Cost |
|---|---|---|
| $237,500 (5% down on $250K) | $1,781/year | $148/month |
| $332,500 (5% down on $350K) | $2,494/year | $208/month |
| $427,500 (5% down on $450K) | $3,206/year | $267/month |
PMI adds $150 to $270 per month to your housing costs, and that amount goes straight to the lender’s insurance company. You get nothing for it. On conventional loans, PMI drops off automatically once you reach 20% equity. On FHA loans taken out after 2013, mortgage insurance stays for the life of the loan unless you refinance into a conventional mortgage.
Your credit score directly impacts your PMI rate. A score above 740 gets you the lowest PMI premiums. Below 680, expect to pay significantly more.
Hidden Homeownership Costs Most Buyers Forget
The mortgage payment is just the beginning. Here are the costs that catch first-time buyers off guard:
Property Taxes
Property taxes vary wildly by location. The national average is roughly 1.1% of the home’s assessed value per year, but in states like New Jersey and Illinois, effective rates exceed 2%. On a $350,000 home:
- At 1.1%: $3,850/year ($321/month)
- At 2.0%: $7,000/year ($583/month)
Property taxes are typically rolled into your monthly mortgage payment through an escrow account.
Homeowners Insurance
Required by every mortgage lender. Average cost is roughly $1,500 to $2,500 per year nationally, but in disaster-prone states like Florida, Texas, and California, premiums can exceed $4,000 to $5,000 per year and are rising fast.
Maintenance and Repairs
This is the big one people underestimate. The standard guideline is to budget 1% to 2% of your home’s value per year for maintenance and repairs.
On a $350,000 home, that is $3,500 to $7,000 per year, or $292 to $583 per month. This covers things like a new roof ($8,000 to $15,000), HVAC replacement ($5,000 to $10,000), plumbing issues, appliance failures, and general upkeep. These costs are not optional. They are when, not if.
HOA Fees
If you buy a condo, townhome, or home in a planned community, expect HOA fees of $200 to $600 per month or more. These cover shared amenities and exterior maintenance but eat directly into your housing budget.
The True Monthly Cost
Here is what a $350,000 home actually costs with 10% down at a 6.5% mortgage rate:
| Cost Component | Monthly Amount |
|---|---|
| Mortgage (P&I on $315K, 30-year, 6.5%) | $1,991 |
| Property tax (1.1%) | $321 |
| Homeowners insurance | $175 |
| PMI (0.75% on $315K) | $197 |
| Maintenance (1.5% of value) | $438 |
| Total | $3,122 |
That $350,000 house actually costs over $3,100 per month when you account for everything. Without maintenance budgeted, you might think it is $2,684. But skipping the maintenance budget is just borrowing from your future self.
You can run your own numbers through the CFPB mortgage calculator to see how different rates and down payments affect your payment. For current rate benchmarks, check the Freddie Mac Primary Mortgage Market Survey.
Affordability Walkthrough: Two Salary Examples
Let us put this all together with real scenarios.
Example 1: $75,000 Salary
- Gross monthly income: $6,250
- Take-home (estimated): $4,700
- Max housing at 28%: $1,750/month
- Existing debt: $350/month (student loans + car payment)
- Max total debt at 36%: $2,250, leaving $1,900 for housing after existing debt
Working backward from a $1,750 monthly housing budget (using the stricter 28% limit):
- At 6.5% rate, 30-year term, 10% down, including taxes and insurance: you can afford roughly $240,000 to $260,000 in home price.
- With 5% down and PMI added: the affordable range drops to $220,000 to $240,000.
- Adding maintenance reserves: realistically target $225,000 to $250,000.
At $75K income, a $350,000 home would put your housing costs at roughly $3,100 per month, which is 49% of your gross and 66% of your take-home pay. That is a recipe for being house-poor.
Example 2: $100,000 Salary
- Gross monthly income: $8,333
- Take-home (estimated): $6,200
- Max housing at 28%: $2,333/month
- Existing debt: $500/month (student loans + car payment)
- Max total debt at 36%: $3,000, leaving $2,500 for housing after existing debt
Working backward from a $2,333 monthly housing budget:
- At 6.5% rate, 30-year term, 10% down, including taxes and insurance: you can afford roughly $330,000 to $360,000 in home price.
- With 20% down and no PMI: the affordable range improves to $350,000 to $380,000.
- Adding maintenance reserves: realistically target $320,000 to $360,000.
At $100K income with 10% down, you could comfortably handle a home in the low-to-mid $300,000s. A $450,000 home, which a lender might happily approve, would push your total housing costs past $3,800 per month and leave you financially stressed.
Closing Costs: The Expense Nobody Budgets For
Beyond the down payment, buyers need cash for closing costs, which typically run 2% to 5% of the home’s purchase price.
| Home Price | Closing Costs (3% estimate) |
|---|---|
| $250,000 | $7,500 |
| $350,000 | $10,500 |
| $450,000 | $13,500 |
Closing costs include lender fees, title insurance, appraisal, inspection, attorney fees, prepaid taxes and insurance, and more. Some of these are negotiable, and sellers sometimes contribute toward closing costs in slower markets. But you need to have this cash available in addition to your down payment.
For a $350,000 home with 10% down, you need roughly $35,000 (down payment) plus $10,500 (closing costs) equals $45,500 in cash before you get the keys.
When Renting Is Actually Smarter
Homeownership is not always the right move. Renting is financially smarter when:
- You plan to move within 3 to 5 years. Between closing costs, selling costs (5-6% agent commissions), and the slow equity buildup in early mortgage years, short-term ownership often loses money versus renting.
- Your local market is extremely overpriced. If the price-to-rent ratio in your area is above 20, renting and investing the difference often builds more wealth.
- You have high-interest debt. Paying off credit card debt at 22% APR will almost always generate more return than home equity appreciation at 3% to 5%.
- Your emergency fund is thin. Homeownership comes with surprise expenses. If a $5,000 furnace repair would wreck your finances, you are not ready.
- You value flexibility. Career changes, relocations, and life pivots are easier without a mortgage tying you to one location.
Renting is not throwing money away. It is paying for flexibility, zero maintenance responsibility, and the ability to invest your excess cash in assets that may grow faster than real estate.
Your Action Plan Before House Shopping
Before you start browsing Zillow, do this:
- Calculate your actual budget using the 28/36 rule with your real income and debts.
- Check your credit score and improve it if needed. Every point matters for mortgage rates.
- Save aggressively for down payment plus closing costs plus a three-month emergency buffer for post-purchase surprises.
- Get pre-approved to know your ceiling, then shop well below it.
- Budget for all costs, not just the mortgage. Include taxes, insurance, PMI, maintenance, and any HOA fees.
- Run the rent-vs-buy math for your specific market before committing.
The right home purchase should make you feel secure, not anxious. If the monthly numbers make your stomach tight, the house is too expensive. There will always be another home. There is only one financial future.
Buy what you can genuinely afford, not what the bank says you can handle, and you will actually enjoy being a homeowner instead of being owned by your home.