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Home Affordability & Debt-to-Income Scenario Calculator

Estimate a housing-payment budget and approximate home-price range from income, debts, rate and down payment assumptions.

Private by design. Inputs and calculations stay in this browser tab. No financial or property values are uploaded.

Scenario inputs

Home Affordability Calculator

The calculator applies user-selected front-end and back-end debt-to-income limits, then converts the available principal-and-interest payment into a loan estimate.

Calculated view
Housing payment budget$2,340.00
Principal & interest budget$1,640.00
Approx. loan amount$259,465.74
Approx. home price$324,332.18
Back-end DTI at target36%

Lender qualification rules, taxes, insurance, rates and reserves vary.

Sensitivity analysis

Scenario lab

Changes only Interest rate while holding the other assumptions constant.

80% input5.2
Primary result: 2,340
90% input5.85
Primary result: 2,340
100% input6.5
Primary result: 2,340
110% input7.15
Primary result: 2,340
120% input7.8
Primary result: 2,340

This calculator is an educational planning tool. Verify financing, tax, legal, investment and accounting decisions using the authoritative documents and professionals that apply to your situation.

Why this tool is different

Estimate a housing-payment budget and approximate home-price range from income, debts, rate and down payment assumptions. OpenFileTools exposes the inputs, formulas and scenario effects so the estimate remains auditable.

Requirements and recommendations

Model the decision with explicit assumptions

  • Enter realistic assumptions instead of best-case values.
  • Use the scenario lab to see which assumption changes the result most.
  • Verify taxes, rates, fees, legal rules and market inputs from authoritative sources before making a real decision.
How OpenFileTools processes it

Local processing, explicit choices.

The browser evaluates the published calculation from your inputs and recomputes a bounded sensitivity range around the selected scenario variable. No external market feed or hidden scoring service is called.

Frequently asked

Questions, answered.

Is my data uploaded?

No. Batch 3 workbooks, trackers and calculators run locally in this browser tab and generate downloads on your device.

Are the results official advice?

No. These tools are planning and analysis aids. Verify important academic, financial, tax, legal, lending, employment or investment decisions with the relevant authoritative source or professional.

Related guide

Learn more about this task.

Read the related guide