Mortgage & Amortization Calculator
Our mortgage & amortization calculator helps you understand the cost of home financing. The amortization schedule shows how your monthly payments are split between principal (building equity) and interest (cost of borrowing). Early payments are primarily interest, while later payments focus more on principal. Adding extra monthly payments can significantly reduce your total interest paid and shorten the loan term.
Key Insights: A typical 30-year mortgage at 7.5% on a $400,000 loan results in monthly payments of approximately $2,798, but you'll pay over $600,000 in total interest over the life of the loan. Making extra payments can save tens of thousands of dollars.
DTI (Debt-to-Income) Ratio & Qualification Tool
Lenders use the Debt-to-Income (DTI) ratio to assess whether you can afford a mortgage. The Front-End DTI measures only housing costs (mortgage, taxes, insurance) as a percentage of gross income, while the Back-End DTI includes all debt obligations. Most lenders follow the 28/36 rule: up to 28% Front-End and 36% Back-End, though some may approve up to 43% or even 50% Back-End DTI depending on credit profile and down payment.
Example: If you earn $8,000/month and have $1,000 in existing debts, your Back-End DTI limit at 36% is $2,880. Subtract your $1,000 debt, and you have $1,880 remaining for housing expenses (mortgage, taxes, insurance, HOA).
Cap Rate & Net Operating Income (NOI)
The Cap Rate (Capitalization Rate) is the annual return on an investment property based on the Net Operating Income (NOI) divided by the purchase price. NOI is calculated as Gross Operating Income (rental income minus vacancy) minus all operating expenses, excluding mortgage payments. A higher cap rate indicates a potentially better investment return. Cap rates vary by market and property type: single-family rentals typically range from 4-8%, while commercial properties might be 6-10%.
Example: A $500,000 property generating $40,000 annual NOI has a 8% cap rate. If similar properties in the area average 6% cap rates, this property offers above-market returns.
Seller Net Sheet Calculator
When selling a property, it's crucial to understand exactly how much you'll receive after all deductions. This includes real estate commissions (typically 5-6% total), title and escrow fees, transfer taxes (which vary by state), property tax prorations, and any other closing costs. The net proceeds are the amount you actually walk away with—this is what you can reinvest or use for other purposes.
Example: On a $500,000 sale with $300,000 mortgage payoff, 6% commissions ($30,000), and $5,000 in other closing costs, you'd net approximately $165,000.
Important Disclaimers
These calculators are for educational and planning purposes only. They provide estimates based on the information you provide. Actual loan amounts, qualification decisions, and proceeds may vary depending on:
- Credit score and history
- Employment and income verification
- Property appraisal values
- State and local tax variations
- Lender-specific requirements and fees
- Market conditions and interest rate changes
Always consult with a qualified mortgage professional, financial advisor, or real estate agent for personalized guidance specific to your situation.