How Does the Mortgage Calculator Work?
Our mortgage calculator uses the standard amortization formula to estimate your monthly mortgage payment. Enter your home price, down payment, loan term, interest rate, and optional costs like property tax and insurance to get a complete payment breakdown.
Understanding Your Mortgage Payment
- Principal & Interest — The core loan repayment. Early payments are mostly interest; later payments shift toward principal.
- Property Tax — Annual tax assessed by your local government, typically 0.5%–2.5% of home value.
- Home Insurance — Coverage protecting your home against damage and liability.
- Total Monthly — The sum of all components that make up your monthly housing cost.
Types of Mortgages
- 30-Year Fixed — Most popular. Lower monthly payments, more total interest paid.
- 15-Year Fixed — Higher monthly payments, but significantly less total interest.
- Adjustable Rate (ARM) — Lower initial rate that can change over time.
- FHA Loans — Government-backed with lower down payment requirements (3.5%).
- VA Loans — For veterans and service members, often with no down payment.
Tips for Homebuyers
- Aim for a 20% down payment to avoid Private Mortgage Insurance (PMI)
- Keep your total housing cost below 28% of your gross monthly income
- Compare offers from multiple lenders — even 0.25% rate difference matters
- Factor in closing costs (typically 2%–5% of loan amount)
- Consider the total cost over the life of the loan, not just monthly payments
Frequently Asked Questions
Is this calculator accurate?
This calculator provides estimates based on the standard amortization formula used by lenders. Actual payments may vary based on additional factors like PMI, HOA fees, and exact closing date.
How much house can I afford?
A common guideline is the 28/36 rule: spend no more than 28% of gross monthly income on housing costs, and no more than 36% on total debt (housing + car + student loans, etc.).
Should I get a 15-year or 30-year mortgage?
A 15-year mortgage has higher monthly payments but saves significantly on interest. A 30-year mortgage offers lower monthly payments and more flexibility. Choose based on your budget and financial goals.
What is amortization?
Amortization is the process of paying off a loan over time with regular payments. Each payment covers both interest and principal. Early in the loan, most of the payment goes to interest; over time, more goes to principal.