How Much Home Can I Afford? A 2026 Buyer's Worksheet
Use our step-by-step affordability framework — income, debt ratios, down payment, and hidden costs — to calculate a realistic home-buying budget before you shop.
One of the most common mistakes first-time buyers make is starting the house hunt before answering the one question that should come first: how much home can I actually afford? Lenders will tell you the maximum they’ll approve; your lifestyle and financial goals define the number you should actually spend. Here’s a framework for finding your real number in 2026.
Step 1: Start With Your Gross Monthly Income
Lenders qualify you on gross (pre-tax) income, which often surprises buyers. Add up all income sources you can document:
- Base salary or wages
- Overtime (if consistent over 2 years)
- Bonus income (2-year average)
- Self-employment income (2-year average, after business expenses)
- Rental income (75% of market rent is typically countable)
- Alimony or child support (if you choose to disclose)
Example: $85,000 salary → $7,083 gross monthly income
Step 2: Apply the Debt-to-Income (DTI) Rule
Lenders use two ratios to limit how much housing costs you can carry:
Front-End Ratio (Housing Expense Ratio)
Your proposed housing payment (principal + interest + taxes + insurance + HOA + PMI) should not exceed 28–31% of gross monthly income for conventional loans. FHA allows up to 31% front-end.
- $7,083 × 31% = $2,196 maximum housing payment
Back-End Ratio (Total DTI)
All monthly debt payments (housing + car loans + student loans + credit card minimums) should stay under 43–45% for most programs. FHA allows up to 50% in some cases.
- $7,083 × 43% = $3,046 total debt budget
- Subtract existing debts (e.g., $400 car payment) = $2,646 available for housing
Your qualifying payment is the lower of these two results.
Step 3: Translate Payment to Purchase Price
With an estimated maximum monthly principal-and-interest payment, you can back into a purchase price. In 2026, at illustrative rates, here’s a rough guide:
| Max P&I Payment | Approx. Loan Amount (30-yr fixed, 7%) |
|---|---|
| $1,500 | ~$226,000 |
| $2,000 | ~$301,000 |
| $2,500 | ~$376,000 |
| $3,000 | ~$451,000 |
Remember: your actual mortgage payment also includes property taxes, insurance, and possibly PMI — these can add $300–$700/month or more depending on your location and down payment.
Step 4: Count Your Down Payment and Closing Costs
Your cash to close includes:
- Down payment: 3% to 20%+ of the purchase price
- Closing costs: Typically 2–5% of the purchase price (loan origination, title fees, appraisal, prepaid taxes/insurance, etc.)
- Cash reserves: Most lenders want to see 2–6 months of mortgage payments in savings after closing
Example for a $400,000 home:
- 5% down payment: $20,000
- Closing costs (3%): $12,000
- 2-month reserves: ~$4,500
- Total cash needed: ~$36,500
Many buyers are surprised that the down payment isn’t their only upfront expense. Plan for closing costs early.
Step 5: Factor In the Real Monthly Cost of Ownership
The mortgage payment is just the beginning. Homeownership comes with:
- Property taxes: Varies widely by state and county; in Texas, roughly 1.6–2.2% of assessed value annually
- Homeowner’s insurance: Typically $100–$200/month for a median-priced home
- PMI: 0.2–1% of loan annually if your down payment is under 20%
- HOA dues: $0 to $500+/month depending on community
- Maintenance: Budget 1% of home value per year ($4,000 on a $400,000 home)
- Utilities: Often $100–$300/month more than renting, especially for larger homes
A buyer financing $380,000 might have:
- P&I: $2,529/month
- Taxes: $550/month
- Insurance: $150/month
- PMI: $120/month
- Total: ~$3,349/month — significantly more than the quoted mortgage payment
Step 6: The Comfort Test
Once you have your total estimated monthly cost, run this quick comfort test:
- Subtract your total housing cost from your take-home pay
- Subtract your non-debt monthly expenses (groceries, childcare, transportation, subscriptions, savings goals)
- Is there a comfortable buffer left over?
If the math leaves you $100 from zero every month, you’re house-rich and cash-poor. Financial planners often suggest keeping total housing at 25–30% of take-home pay — more conservative than lender maximums, but it preserves breathing room.
What Changes in 2026?
The 2026 conforming loan limit is $832,750, meaning buyers in most markets can access conventional financing up to that amount without jumping to jumbo territory. FHA loans go up to a floor of $541,287 — useful for buyers relying on government-backed financing in mid-cost markets.
If your target price exceeds the conforming limit in your county, ask about jumbo options. Summit Crest offers jumbo financing for well-qualified borrowers, often with competitive rates that rival conforming products.
Your Next Step
Run your own numbers before you fall in love with a house. A pre-approval from Summit Crest is free, fast, and gives you a real shopping budget — not a guess. We’ll pull credit, review income documentation, and issue a letter you can use with confidence when you’re ready to make an offer.
Frequently asked questions
How do lenders calculate how much I can afford?
Lenders primarily use two debt-to-income ratios: your front-end ratio (housing costs divided by gross monthly income, ideally under 28–31%) and your back-end ratio (all monthly debt payments divided by gross monthly income, ideally under 43–45%). Your pre-approval amount is based on the maximum payment that keeps you within these thresholds.
Does my pre-approval amount mean I should spend that much?
Not necessarily. Your pre-approval reflects the maximum a lender is willing to lend, not what's comfortable for your lifestyle. Many financial advisors suggest keeping your actual housing costs 10–15% below your pre-approval ceiling to leave room for savings, emergencies, and other goals.
What hidden costs should I factor in when buying a home?
Beyond the mortgage payment, budget for property taxes, homeowner's insurance, HOA dues (if applicable), PMI or MIP (if applicable), utilities, maintenance (budget 1% of home value annually), and closing costs (typically 2–5% of the purchase price, due at closing).
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