Find your maximum loan using flexible affordability rules. Compare DTI caps, escrows, and upfront costs. Download results, review examples, and plan confidently now ahead.
| Scenario | Income | Debts | DTI | PTI | Rate | Term | Escrow | Max loan | Max purchase |
|---|---|---|---|---|---|---|---|---|---|
| Balanced constraints | $5,000 | $500 | 36% | 28% | 7.0% | 30y | $400 | $128,513 | $148,513 |
| Fees financed | $8,000 | $1,200 | 40% | 30% | 6.5% | 20y | $550 | $169,132 | $216,632 |
| Short-term loan | $3,500 | $900 | 35% | — | 12.0% | 5y | $0 | $14,610 | $14,610 |
Your gross monthly income is the starting point for affordability. Many lenders review stable income sources and convert them to monthly figures. This calculator uses your gross amount because ratios like DTI and PTI are typically applied before taxes. If your income varies, enter a conservative average. A higher verified income increases the allowable monthly payment, which increases the supported loan balance.
DTI compares total monthly debt payments to gross income. A common reference range is 36% to 43%, while some programs allow higher limits with compensating factors. The calculator subtracts your existing debts from the DTI allowance, leaving a housing budget. If you enable the optional payment-to-income cap, the tool uses the stricter limit so results stay realistic.
After escrows and fees are removed, the remaining amount is your maximum principal-and-interest payment. The loan amount is then computed as the present value of an annuity using the monthly interest rate and total number of payments. Lower rates or longer terms raise the present value, but they can increase lifetime interest. Shorter terms reduce interest but also reduce maximum loan size. For mortgages, small changes matter: increasing APR from 6% to 7% can cut borrowing power by roughly 8% to 10% over 30 years, depending on fees and escrows entered.
Property taxes, insurance, and HOA dues reduce what you can spend on principal and interest. Entering these costs prevents an inflated loan estimate. The safety buffer further reduces the payment capacity by a chosen percentage, reflecting maintenance, variable utilities, or rate shock. A 5% to 10% buffer is a practical stress test when budgeting.
Upfront fees can be paid in cash or financed. Financing fees increases the total balance but reduces the base amount attributable to the purchase. Rounding helps match typical lender quote increments. Treat the maximum purchase price as a planning figure that assumes your down payment is available. Final approval can vary by credit score, reserves, and documentation.
It is the financed balance supported by your chosen affordability limits at the selected rate and term, after escrows, HOA, upfront fees, and the safety buffer are applied. It is an estimate, not an approval.
Use gross monthly income, because DTI and payment-to-income rules are usually calculated before taxes. If your pay varies, enter an average you can document and comfortably sustain.
Include required monthly payments that appear on your credit report, such as credit cards, auto loans, student loans, and personal loans. Add any legally required support payments. Exclude expenses that are not fixed obligations.
These costs take up part of the housing payment limit, leaving less room for principal and interest. Entering them makes the estimate closer to real-world underwriting and helps avoid a payment surprise.
Financing fees adds them to the total loan balance. The calculator keeps the monthly payment affordable by reducing the base loan portion so the combined balance still fits your payment capacity.
The table shows the first 12 months of principal-and-interest only. It assumes a fixed rate and a level payment. Escrows, HOA, and other costs are excluded because they are not applied to the loan balance.
Start with gross monthly income, because most lenders test ability-to-pay before taxes. Add all recurring monthly obligations such as credit cards, personal loans, auto loans, student loans, and minimum required payments. A common example: income $6,000 and other debts $900 leaves more room for housing than income $6,000 and debts $1,800. Accurate inputs matter because the calculator caps total payments first, then allocates what remains to the new loan. If you receive bonuses or commissions, use a conservative monthly average based on at least 12 months, or exclude it for stricter qualification tests here.
Debt-to-income (DTI) is the primary guardrail. Many programs target total DTI ranges around 36% to 45%, while some allow higher with strong compensating factors. If you enable the payment-to-income (PTI) cap, the calculator also limits housing costs as a share of income, often aligned with the “28/36” benchmark. Using both checks helps avoid a result that technically fits DTI but feels tight month to month.
The loan amount is derived from the payment you can support. For the same payment, higher rates reduce principal. Over 30 years, a 1% rate increase can meaningfully lower borrowing capacity. Shorter terms raise the payment required per borrowed dollar, so a 15‑year term usually produces a smaller maximum loan than a 30‑year term, even though total interest paid may be lower.
Monthly escrows (taxes and insurance) and HOA dues reduce the portion available for principal-and-interest. If taxes are $350 and insurance is $120, that $470 comes off the housing limit before the mortgage payment is computed. The optional safety buffer intentionally underestimates capacity, useful when income varies or rates may move before closing. Rounding options can align the result to common underwriting increments.
Review the maximum payment totals and the derived loan amount together. If the loan looks low, adjust controllable levers: reduce debts, increase down payment, extend the term, or shop for a lower rate. If it looks high, keep the buffer on and sanity-check your budget for utilities, maintenance, and savings. Use the export buttons to share scenarios with a lender or advisor.
It is the largest principal balance supported by your allowed monthly payment capacity, after considering debts, housing limits, escrows, HOA, rate, term, and optional buffers. It is an estimate, not an approval.
Because they are part of your monthly housing cost. The calculator subtracts escrows from the housing limit, leaving less room for principal-and-interest, which lowers the present-value loan amount.
Use the limit your lender or program targets. If unknown, test a conservative range such as 36% to 40%, then compare outcomes at 45%. Higher limits can increase risk and may require stronger credit or reserves.
Financing fees increases the total loan but reduces the base loan derived from payment capacity. Paying fees in cash often improves your effective borrowing power and may lower interest costs, but requires more closing funds.
The buffer reduces the calculated payment capacity by a chosen percentage. It helps account for variable income, future rate changes, or unexpected expenses, producing a more cautious maximum loan estimate.
No. Pre-approval also reviews credit, documentation, property type, reserves, and program rules. Use this as a planning tool to understand sensitivity to rate, term, debts, and recurring housing costs.
Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.