Mortgage Calculator
See exactly where your money goes. Visualize your principal, interest, taxes, and insurance in real-time.
How It Works
Buying a home is likely the largest financial decision of your life. Yet, most homebuyers focus solely on the "headline price" of the house, ignoring the complex breakdown of their actual monthly obligation. This tool is designed to peel back the layers of your mortgage payment so you can budget with confidence.
Unlike simple calculators that only show Principal and Interest (P&I), our Mortgage Calculator 2.0 factors in the critical "hidden" costs of homeownership: Property Taxes and Homeowners Insurance. In high-tax states like New Jersey or Texas, these can account for nearly 40% of your monthly bill!
The PITI Formula
Lenders use the acronym PITI to determine your total monthly housing expense. Here is what each letter stands for:
- P (Principal): The portion of your payment that pays down the loan balance. In the early years, this is frustratingly small.
- I (Interest): The fee the bank charges you for borrowing the money. In the early years, this makes up the majority of your payment.
- T (Taxes): Property taxes charged by your local municipality, typically 0.5% to 2.5% of the home's value annually.
- I (Insurance): Homeowners insurance to protect against fire, theft, and disasters.
Actionable Insights
1. Increase Your Down Payment
The most direct way to lower your payment is to borrow less money.
The 20% Rule
- Goal:Put down 20%
- Benefit 1:Smaller Loan Size
- Benefit 2:No PMI (Private Mortgage Insurance)
If you put down less than 20%, lenders usually require Private Mortgage Insurance (PMI), which protects them (not you) in case you default. This can add $100-$300 to your monthly bill for no benefit to you.
2. Shop for a Lower Interest Rate
A difference of just 0.5% in your interest rate can save you tens of thousands of dollars over the life of the loan.
Lenders determine your rate based on your Credit Score and Debt-to-Income (DTI) ratio. Before applying, check your credit report for errors. Improving your score from 700 to 760 could drop your rate significantly.
3. Recast or Refinance Later
"Date the rate, marry the house." It's a cliché real estate agent saying, but there is truth to it. If rates are high right now (e.g., 7%+), you can still buy the home (assuming you can afford the payment). When rates eventually drop, you can Refinance into a new, lower-rate loan.
Understanding the Amortization Curve
Have you ever looked at a mortgage statement after 5 years and wondered why your balance has barely moved? That is the Amortization Curve at work.
Mortgages are front-loaded with interest. This protects the bank's profit. On a typical 30-year, $300,000 loan at 6.5%:
- Year 1 Payment Breakdown: ~$1,600 Interest, ~$300 Principal.
- Year 30 Payment Breakdown: ~$50 Interest, ~$1,850 Principal.
Pro Tip: Making just one extra principal payment a year can cut roughly 4-5 years off your 30-year mortgage and save you massive amounts of interest.