Plan with clarity

Mortgage Affordability Calculator

Estimate a home-buying budget using income, debts, down payment and a monthly payment you are comfortable with. Include ownership expenses from the start.

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Estimated purchase budget$550,777.78
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Your scenario

Starting values are examples, not current rates or lending terms.

More assumptions and costs
An editable budgeting assumption, not an approval threshold.

No sign-up required. Calculations run in your browser. Saved scenarios last only while this page stays open.

Understand the numbers

Your scenario, in detail

Change an assumption above to see what moves the result. Save a scenario to compare it with your next calculation.

Rate sensitivity using your same monthly budget
  • The calculator uses the lower of your monthly comfort budget and your editable DTI-based housing allowance. The DTI assumption is not a lending limit.
  • Property taxes are estimated as a percentage of the calculated price. Enter insurance, association dues and mortgage insurance separately; replace these with property-specific quotes.
  • Down-payment cash is separate from closing costs, moving costs and reserves. Maintenance, utilities, income taxes and other living costs are excluded, so leave room in your comfort budget.

Put the estimate to work

How to use this mortgage affordability calculator

Start with a payment you can live with

Income-based qualification and household comfort are different questions. This calculator uses the lower of your entered comfort budget and the housing allowance derived from income, debt payments and your DTI target. That keeps a larger mathematical borrowing amount from automatically becoming your spending target.

Build in the costs beyond the loan

Property taxes, insurance, association dues and mortgage insurance reduce the amount available for principal and interest. The purchase budget solves for a home price using these inputs and your down payment. Keep closing costs, reserves, moving expenses, repairs and everyday living costs outside the down-payment amount.

Refine the budget for a Florida property

Use property-specific insurance estimates and verify taxes with the appropriate county property appraiser or tax collector. A seller’s historical tax bill may not represent your future bill. Condominium dues, assessments and flood or wind coverage can materially change the budget. A broker review can connect a realistic payment range with the loan options suited to your situation.

Housing allowance = monthly gross income × target DTI − other monthly debts. The tool uses the lower of that allowance and your comfort budget to solve for the purchase price.

A simple example. At $12,500 in monthly gross income, a 36% DTI assumption and $800 in other debts, the income-based housing allowance is $3,700. A lower comfort budget would control instead.

Calculation model reviewed September 8, 2026. Examples are hypothetical.

Common questions

Mortgage Affordability Calculator FAQs

Use the estimate to prepare your questions, then review the property, documentation and financing terms with a mortgage broker.

Conventional mortgage programs · FHA mortgage options

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Is this a mortgage preapproval?

No. This is a planning estimate based on the values you enter. It does not verify income, credit, assets, property eligibility or lender requirements.

Which debts belong in the monthly debt field?

Enter recurring debt payments you want included in your budget, such as vehicle loans, student loans, credit cards and other obligations. Ask the lender which obligations it includes for underwriting.

Does this include Florida taxes and insurance automatically?

No. The starting amounts are examples. Enter an annual tax percentage and an insurance estimate appropriate to the specific property and your expected ownership.

Why did increasing my income not increase the result?

Your comfort budget may be the lower limit. The tool uses the lower of the income-based allowance and the comfortable housing budget you entered.

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