Every first-time buyer I talk to has been coached by well-meaning friends, family, or the internet with some version of the same rule: "Just spend three times your annual salary." Or maybe it's "spend 28% of your gross income on housing." Or my personal favorite: whatever the loan officer at Big Bank pre-approved you for.

Here's the truth. Your lender maximum is a ceiling, calculated using debt-to-income ratios that assume you spend zero dollars on anything except the bare minimum. It's what you can qualify for on paper. It has almost nothing to do with what you should actually spend to still live your life without stress.

So how do you find your real number? I use a two-part framework with every client. It's not magic — just discipline and honest math.

Part 1: The ceiling — what will the lender approve?

This is what most calculators show you. Lenders look at your Debt-to-Income Ratio (DTI), which is your total monthly debt payments divided by your gross monthly income. Most loan programs cap DTI at 43-45%, with some FHA loans going up to 57%.

Quick example

Household income: $10,000/mo gross

Existing debt: $500 (car) + $200 (student loan) = $700

Max DTI at 43%: $4,300 in total monthly debt

Available for housing: $4,300 − $700 = $3,600/mo — that's your ceiling.

At a 7% rate, that $3,600/month housing budget qualifies you for roughly a $500,000 loan after accounting for property tax, insurance, and PMI. That's the number your lender's letter will show.

Here's the problem: nobody actually wants to spend 43% of their gross income on housing. It leaves nothing left for anything you enjoy about being alive.

Part 2: The target — what should you actually spend?

The number I actually use with clients is between 25% and 28% of gross monthly income for total housing costs (that's PITI: principal, interest, taxes, insurance, plus HOA if applicable).

Why 25-28%? Because it leaves room in your budget for:

  • Retirement savings (10-15% of income, minimum)
  • Emergency fund contributions
  • Kids, college, life stuff
  • Home maintenance (budget 1-2% of home value annually)
  • Actually enjoying your income

Same buyer, honest math

Household income: $10,000/mo gross

Target housing (28%): $2,800/mo total PITI

Purchase price at 10% down, 7% rate:
$400,000 house
  + ~$5,400/yr property tax
  + ~$1,800/yr insurance
  + PMI
  = ~$2,850/mo total

That's your real target — $400,000, not $500,000. And it's the difference between loving your house and resenting it.

The hidden costs that break budgets

The other thing calculators lie about is what "monthly payment" actually means once you own a home. Beyond PITI:

  • Maintenance and repairs: Budget 1-2% of home value per year. On a $400K house, that's $4,000-8,000/year, or $333-667/month averaged out. A new roof alone is $15,000+.
  • Utilities: Your first electric bill in a house is going to shock you. Add $200-400/month over what you paid in an apartment.
  • Furniture and setup: The first year of homeownership typically costs $10-20K in furniture, appliances, tools, and moving costs.
  • HOA/COA dues: If applicable, these can range from $50 to $1,500+/month and often increase yearly.

The best advice I ever got from a mentor: "Buy the house that lets you sleep at night, not the biggest one you qualify for." Twenty years in, I've never seen a client regret buying under budget. I've seen plenty regret buying over.

The sleep-well-at-night checklist

Before you make an offer, run through these questions honestly. If you can't answer "yes" to all of them, your target price is too high:

  1. Can I still put at least 10% of gross income into retirement after housing?
  2. Do I have 3-6 months of full living expenses (including the new housing cost) in emergency savings?
  3. Can I comfortably absorb a $10,000 unexpected repair without going into debt?
  4. If one of us lost our job for 90 days, would we still make the mortgage payment?
  5. Am I still able to save for kids' college, vacations, and other goals?

If any of those are "no" — buy less house. Nobody has ever come to me in year three of homeownership and said "I wish we'd stretched our budget more."

What to actually do next

Here's my recommendation:

  1. Get pre-approved — so you know your ceiling. Not because you'll spend it, but because it clarifies the top of the range.
  2. Calculate your target — 25-28% of gross monthly income for total PITI. This is your real shopping range.
  3. Shop in the middle — leave 10-15% of your target as buffer for the inevitable "we found the house but need to bring 3% more to closing" moment.
  4. Talk to me before you write an offer — I'll run the real numbers with taxes, insurance, and PMI for your specific target property. Zillow's monthly estimate is almost always wrong.

The math changes based on your credit, down payment, program, and property. But the principle doesn't: your budget is a target, not a ceiling. Aim below the max, sleep well at night, and enjoy owning your home instead of being owned by it.


Questions about your specific situation? Call or text me at 863-695-2265 or start a pre-approval — first conversation is free and there's no credit pull.

Want the real number for your situation?

Fifteen minutes on the phone and I'll tell you exactly what you should be shopping for — with real math on your income, your target neighborhood, and your goals.

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