Home Affordability Examples With Calculations
Review three home affordability examples showing housing-ratio and debt-ratio limits, PMI, cash to close, monthly cost, and higher-rate sensitivity.
How should you use these Home Affordability Calculator examples?
These examples turn the Home Affordability Calculator inputs into complete scenarios with stated values, calculation steps, and interpreted results. Use them to check how the calculator behaves, compare your own situation with realistic cases, and identify which inputs have the greatest effect before relying on an estimate.
Three Home Affordability Examples
These examples are generated by the tested Home Affordability Calculator. They demonstrate how the tighter of the housing and total-debt limits determines the modeled payment budget.
Example 1: Housing Ratio Limits the Home Price
Annual income is $120,000, monthly debts are $600, and down payment is $80,000. The loan is 30 years at 6.5%, with 1.2% property tax, 0.35% insurance, 0.5% PMI, no HOA, 3% closing costs, and 28% / 36% planning ratios.
Main results
| Estimated home price | $415,865.25 |
|---|---|
| Loan amount | $335,865.25 |
| Monthly housing | $2,800.00 |
| Cash to close | $92,475.96 |
Payment details
| Principal and interest | $2,122.90 |
|---|---|
| Property tax | $415.87 |
| Insurance | $121.29 |
| PMI | $139.94 |
The housing budget is $2,800, while the total-debt formula permits $3,000 for housing. The smaller housing-ratio budget controls.
Example 2: Monthly Debt Becomes the Limit
Keep Example 1 unchanged but increase monthly debts to $1,600.
| Estimated home price | $329,156.63 |
|---|---|
| Loan amount | $249,156.63 |
| Monthly housing | $2,000.00 |
| Housing DTI | 20.00% |
| Total DTI | 36.00% |
| Cash to close | $89,874.70 |
The total-debt formula leaves $2,000 for housing, so the estimated price falls. This isolates the model effect of debt; it does not recommend using closing or emergency cash to repay debt.
Example 3: $90,000 Income at a 7.5% Rate
This scenario uses $90,000 annual income, $600 monthly debts, a $50,000 down payment, and a 7.5% 30-year mortgage. Other cost and ratio assumptions remain at their defaults.
| Estimated home price | $283,943.07 |
|---|---|
| Estimated loan | $233,943.07 |
| Monthly housing | $2,100.00 |
| PMI estimate | $97.48 |
| Housing DTI | 28.00% |
| Cash to close | $58,518.29 |
The down payment is below 20% of the solved price, so the model includes PMI. The housing ratio is again the limiting constraint.
Compare the Three Affordability Scenarios
| Scenario | Price | Housing payment | Total DTI | Limit |
|---|---|---|---|---|
| $120k income, $600 debt | $415,865.25 | $2,800.00 | 34.00% | Housing ratio |
| $120k income, $1,600 debt | $329,156.63 | $2,000.00 | 36.00% | Total debt ratio |
| $90k income, 7.5% rate | $283,943.07 | $2,100.00 | 36.00% | Housing ratio |
Reproduce the Results
- Reset the calculator.
- Enter the income, debt, down payment, rate, term, and cost assumptions shown.
- Open Planning ratios and verify 28% and 36%.
- Select Calculate.
- Review the limiting constraint, price, loan amount, payment components, DTI, cash to close, and sensitivity charts.
Corrections and Review
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