Real Estate & Mortgage Underwriting Tools
Analyze acquisitions, forecast rental yields, and structure debt service with verified mathematical models. From initial PITI to closing friction and 10-year cash flow projections.
Recommended
Start here
Mortgage Calculator
Estimate monthly payment and ownership cost before making an offer.
Closing Cost Calculator
Use Closing Cost Calculator for a practical, browser-based decision.
Rental Analyzer
Use Rental Analyzer for a practical, browser-based decision.
Loan-to-Value Calculator
Use Loan-to-Value Calculator for a practical, browser-based decision.
How they fit together
A sensible working order
- 01Calculate Monthly Mortgage PITI (Principal, Interest, Taxes, Insurance) and amortization schedules.
- 02Estimate Closing Costs and prepaid capital friction to avoid settlement day cash deficits.
- 03Run Rental Deal Underwriting to verify Cap Rates, Net Operating Income (NOI), and Cash-on-Cash returns.
- 04Benchmark Loan-to-Value (LTV) and Rent-vs-Buy thresholds to pressure-test long-term equity upside.
Property workflow
Estimate buying, holding, rental, and comparison numbers before a property decision
Property decisions require more than one calculator. This hub connects purchase costs, taxes, rental assumptions, and side-by-side comparisons so users see the full picture.
Decision path
- 1Estimate purchase and closing costs first.
- 2Add taxes, rent, vacancy, and maintenance assumptions.
- 3Compare properties side by side before narrowing the shortlist.
Trust standards
- No signup required for core tools
- Browser-first workflows where possible
- Clear examples, assumptions, and next steps
Limits and assumptions
Use these outputs as planning estimates. Confirm any high-impact decision with official lender, tax, legal, or provider documentation before you act.
Need a correction?
If a formula, assumption, or output looks wrong for your use case, send details so we can review and update the page.
Contact editorial teamAll real estate & mortgage tools tools
Client-side · verifiedFeatured tools above · all 12 below
- Rental Income ProjectorUse Rental Income Projector for a practical, browser-based decision.
- Property CalculatorUse Property Calculator for a practical, browser-based decision.
- Property ComparatorUse Property Comparator for a practical, browser-based decision.
- Property Tax EstimatorUse Property Tax Estimator for a practical, browser-based decision.
- Debt-to-Income CalculatorFront-end and back-end DTI from gross income and monthly debt payments.
- Home Affordability CalculatorMaximum home price from income, debts, down payment, and target DTI.
- Rent vs Buy CalculatorCompare total rent versus buy costs over your chosen time horizon.
- Refinance Break-Even CalculatorMonthly savings and months to recover refinance closing costs.