TrueAfford

The affordability calculator
with nothing to sell you

NerdWallet's calculator carries lender ads next to your result. Zillow wants you browsing listings. Rocket Mortgage wants an application. None of them profit from telling you the number is smaller than you hoped — this one has no leads to sell, so it doesn't need to.

No account · No lender ads · Free

The difference

Why the number is usually smaller here

Read the full methodology →
  1. Real expenses, not just debt

    Childcare, healthcare, groceries, and transport all have dedicated fields — not a footnote telling you to stuff them into a "monthly debts" box.

  2. Your state, not a national average

    Property tax alone ranges from roughly 0.27% to 2.2% of home value depending on where you live. This calculator uses your state's rate, not a blended guess.

  3. A maintenance reserve, included by default

    1% of home value a year, budgeted automatically — a real cost of ownership every other calculator quietly leaves out.

  4. Lender-approval vs. sustainable, side by side

    What a lender will likely approve and what your household can actually sustain are often different numbers. This is the only calculator that names the gap.

Why this exists

What an affordability calculator actually needs to tell you

Type "how much house can I afford" into a search bar and you'll land on a dozen affordability calculators, most of them built by a company that profits the moment you apply for a loan. An affordability calculator is supposed to answer one honest question — what can your household actually pay every month, for years, without strain — and yet the incentives of the companies that build them push the other way: bigger approved amounts mean bigger commissions, bigger ad impressions, bigger lead-gen fees. TrueAfford exists because that question deserves an answer nobody profits from bending.

Home, house, or mortgage affordability calculator — same question

Search a little further and the terminology multiplies: home affordability calculator, house affordability calculator, mortgage affordability calculator, affordability calculator home loan, home mortgage affordability calculator. They're all names for the same underlying math — take your income, subtract your debts and real expenses, apply a lender's ratio limits, and solve for the largest home price the result supports. The differences between these tools aren't in the label; they're in what gets counted. A calculator that ignores childcare, groceries, and healthcare will always show a bigger number than one that doesn't, which is exactly why so many of them do.

Before you buy a house, the number that matters isn't what a lender is willing to approve — it's what your household can pay in a slow month, after a car repair, without touching savings. That's the gap this site is built around: a lender-approval figure and a sustainable figure, shown side by side on the Home Affordability Calculator, theHouse Affordability Calculator, and the Mortgage Calculator, each pulling state-specific property tax and insurance rates instead of a blended national average. House affordability and mortgage affordability aren't one number — they're a range, and knowing where Comfortable ends and Risky begins is worth more than any single figure a calculator hands you.

Renting and budgeting fit the same math

Not everyone in the market to buy should buy, and this site treats renting with the same rigor. The Rent Affordability Calculator checks three independent rules — the 30%-of-income guideline, the 40x-annual-income screening test landlords actually use, and a leftover-income test after real expenses — and reports whichever one is strictest, not whichever one is most flattering. Once you have a housing number, whether it's a mortgage payment or rent, the Monthly Budget Calculator maps it onto the 50/30/20 rule automatically, using the same income and expense figures you already entered, so needs, wants, and savings are never a separate spreadsheet.

Car loan affordability deserves the same rigor as house loan affordability

Housing is usually the largest recurring cost a household carries, but for most people a car loan runs a close second — and car loan affordability gets almost none of the scrutiny that house loan affordability does. The Car Affordability Calculator applies the same standard here: the widely-cited 20/4/10 rule (20% down, four years or less, no more than 10% of gross income), plus state sales tax and a real insurance estimate, plus the leftover-income check that separates what a dealer will finance from what your budget can actually sustain. Whether the debt is a mortgage or an auto loan, the discipline should be identical — check it against real income and real expenses, not a lender's most optimistic ratio.

None of these calculators require an account, a phone number, or an email address, and none of them show you a lender ad next to your result — there's simply nothing here to sell. Every formula, every data source, and every assumption is documented in full on the methodology page, dated and sourced, so you can verify the math instead of trusting a black box. Run the numbers, see exactly why they came out the way they did, and use the answer to negotiate from a position you actually understand.

Common questions

Frequently asked questions

How much house can I afford?

It depends on your gross income, existing debts, down payment, interest rate, and your state's property tax and insurance rates — but also on real monthly costs like childcare, groceries, healthcare, and transportation that most calculators ignore. The Home Affordability Calculator gives you three answers instead of one: a Comfortable price that leaves a real cushion, a Stretch price that's tighter but sustainable, and a Risky price — the most a lender's ratios alone would approve.

What is the best home affordability calculator?

The best one counts your actual monthly expenses, not just debt payments, and uses your state's property tax and insurance rates instead of a national average. It should also show you two numbers — what a lender would likely approve and what your household can actually sustain — instead of a single flattering figure. TrueAfford does both, and it doesn't carry lender ads or sell your information, since there's no lead-gen business behind it.

Which home affordability calculator should I use?

Use one that separates lender approval from household sustainability, and that lets you enter real expenses — childcare, groceries, healthcare, transportation — rather than lumping everything into a single "monthly debts" field. If a calculator only asks for income and debts, it's only giving you half the picture. This one asks for both and shows the gap.

How do I use a home loan affordability calculator?

Enter your gross annual income, monthly debt payments (car loans, student loans, credit cards), your planned down payment, and the state you're buying in. Add your real monthly expenses — childcare, groceries, healthcare, transportation — if the calculator supports them. The result should show a maximum home price along with the assumptions behind it, ideally broken into a lender-approval figure and a household-sustainable figure rather than one number.

How does a home affordability calculator work?

Most calculators apply lender debt-to-income ratios — typically capping housing costs at around 28% of gross income (front-end ratio) and total debt at around 36-43% (back-end ratio) — then solve for the home price those limits allow. TrueAfford does that, but also runs a separate test: it subtracts your real monthly expenses from your income to see what your household can actually sustain, then reports both results side by side.

I make $70,000 a year, how much house can I afford?

At $70,000 a year (about $5,833/month gross), a standard 28% front-end ratio puts your housing budget around $1,630/month, which — depending on your interest rate, down payment, property tax, and insurance — often lands in the roughly $220,000–$280,000 home price range. That figure moves a lot based on your existing debts, down payment size, and real monthly expenses, so it's worth entering your actual numbers into the calculator rather than relying on a rule of thumb.

How much can I afford to buy a house?

Start with your gross income and subtract existing debt payments to see what a lender's ratios would allow — then subtract your real monthly expenses (childcare, groceries, healthcare, transportation) to see what your budget can actually sustain. The gap between those two numbers is often larger than people expect. Use the Home Affordability Calculator to get both figures using your actual income, debts, down payment, and state.

How does TrueAfford work?

You enter your income, debts, down payment, and real monthly expenses, along with the state you're buying in. TrueAfford runs your numbers through standard lender debt-to-income ratios to find what you'd likely be approved for, then runs a second, independent test against your actual budget to find what you can sustain without strain. It shows both as Comfortable, Stretch, and Risky price ranges, using your state's specific property tax and insurance rates rather than a national average — with no account, no email, and no ads in the result.

Why is TrueAfford free?

Most home affordability calculators are built by companies that make money when you apply for a loan, click a lender ad, or hand over your contact information — so a bigger approved number serves their business even when it doesn't serve yours. TrueAfford doesn't sell leads, ads, or your data, so there's no incentive to inflate the result, and no cost to running a calculator that does the same arithmetic every other one does.

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