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Real Estate & Housing

How Much House Can I Afford?

Instant affordability check

Home affordability hinges on income, existing debt, and lender debt-to-income limits. This calculator estimates a comfortable purchase price range before you tour listings.

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Inputs save on this device only. Share a link to reopen your exact numbers.

Inputs

20000500000
010000
0500000
115
1040
2050

Smart analysis

Recommendations

Tailored to your live inputs and result—guidance only, not professional advice.

  • Stress test

    Model a higher rate and vacancy

    Re-run with +1% rates and a vacancy bump to see if cash flow still holds under stress.

Scenario studio

Compare A vs B

Capture two sets of inputs on this device, then see which outcome wins. Share either scenario with a link.

Scenario A

Adjust inputs, then capture this slot.

Scenario B

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House-hunt studio

Save this home scenario

Compare listings across visits. Scenarios stay on this device — no account required.

Pro strategic insights

→ Invest leftover cash (compound interest)→ Refine monthly mortgage / PITI→ Compare fee drag vs housing costs

Plain-English guide

Terms & how it works

Confused by a field? Read the short definitions here while you use the tool.

  • Gross Annual Income

    The “Gross Annual Income ($)” value used in this tool’s formula. Adjust it to see results update live.

  • Other Monthly Debts

    The “Other Monthly Debts ($)” value used in this tool’s formula. Adjust it to see results update live.

  • Down Payment

    Cash paid upfront; reduces the amount financed.

  • Mortgage Rate (%)

    APR — the yearly interest rate. We convert it to a monthly rate (APR ÷ 12) inside the math.

  • Loan Term (years)

    Loan length in years (we convert to months for the schedule).

  • Max DTI (%)

    The “Max DTI (%)” value used in this tool’s formula. Adjust it to see results update live.

  • DTI

    Debt-to-income

    Allowed payment share of income.

When to use this Home Affordability

Common use cases

  • Stress-test monthly payments at different down payments
  • Compare renting versus buying over a multi-year hold
  • Model rental cash flow before making an offer

Localized examples

  • US metro mortgage payment examples
  • Canadian property tax and closing-cost planning

What you get

  • Update price, rate, and taxes for instant projections
  • Side-by-side scenarios for common buyer decisions
  • Free online tool with no sign-up wall

How to Calculate Home Affordability Step-by-Step

  1. 1Enter your gross annual household income.
  2. 2Add non-housing monthly debt payments.
  3. 3Input available down payment, rate, term, and preferred DTI cap.
  4. 4Review the estimated maximum affordable home price.

Governing formula

Max housing ≤ income × DTI − other debts; loan ← reverse amortization

Backs into an affordable purchase/loan from income and debt-to-income limits.

Example: set Gross Annual Income ($) = 120,000, Other Monthly Debts ($) = 400, Down Payment ($) = 60,000, then read the result.

Variable definitions

  • DTI

    Debt-to-income

    Allowed payment share of income.

  • Lenders may use different DTI and qualifying rates.

Practical guide

Using the Home Affordability Calculator well

Who this is for

Buyers who want a payment ceiling before touring—not after falling in love with a listing.

Worked example

With solid income and moderate debts, a comfortable PITI target may be well below the bank’s maximum approval. Use the lower number as your shopping ceiling.

Affordability is residual income

After housing, you still need savings rate, maintenance reserves, and life. If the spreadsheet only works at the dream rate, renegotiate scope.

Common pitfalls

  • Treating lender max as a goal
  • Forgetting taxes, insurance, and HOA in the monthly stack

Deeper read: open the full guide.

Frequently Asked Questions

Many conventional programs look for total DTI near or below 36–43%, though guidelines vary.

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Reviews & Ratings

See what others think about this tool, then leave your own rating to help improve CalculioHub.

4.8

out of 5.0

4 reviews

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Your rating

Aisha K.

Mar 12, 2026

Clean layout and the results update instantly. Exactly what I needed for a quick planning check.

Daniel R.

Feb 28, 2026

Very usable on mobile. Would love a save/export option later, but the math feels solid.

Priya S.

Feb 3, 2026

The FAQ section answered my questions before I even had to search. Smooth dark mode too.

Marcus L.

Jan 19, 2026

Simple inputs, clear outputs. This replaced three bookmarks I used to juggle.

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