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How is my monthly mortgage payment calculated (PITI)?

Financial Toolset Team5 min read

Your monthly mortgage payment consists of four components (PITI): Principal (the loan amount you're paying down each month), Interest (the cost of borrowing from the lender), Taxes (annual property...

How is my monthly mortgage payment calculated (PITI)?

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Understanding Your Monthly Mortgage Payment: PITI Explained

Buying a home is a significant financial commitment, and understanding your monthly mortgage payment is crucial to maintaining your budget. The term "PITI" might sound like jargon, but it fundamentally breaks down the components of your mortgage payment: Principal, Interest, Taxes, and Insurance. By understanding each component, you can better manage your finances and prevent unexpected costs from derailing your plans.

Breaking Down PITI: Principal and Interest

Principal

The principal is the amount you borrow from the lender to purchase your home. Each monthly payment reduces your outstanding loan balance, incrementally increasing your equity in the property. Over time, as you pay down the principal, the interest portion of your payment will decrease, while the principal portion increases, assuming a standard amortizing loan.

Interest

Interest is the cost of borrowing money from the lender. It's typically expressed as an annual percentage rate (APR). In the early years of your mortgage, interest comprises a larger portion of your monthly payment because you're paying interest on a larger loan balance. Over time, as you pay down the principal, the interest portion decreases.

Example Calculation

Consider a $400,000 mortgage with a 30-year term at a 7% interest rate. Using a standard mortgage calculator, your combined principal and interest payment would be approximately $2,661. This figure is calculated using an amortization schedule, which spreads the cost of the loan over its term.

Taxes and Insurance: The Often Overlooked Costs

Taxes

Property taxes are levied by local governments and are based on the assessed value of your home. These taxes fund essential services such as schools, roads, and emergency services. Typically, your annual property tax bill is divided by 12 and included in your monthly mortgage payment.

Insurance

Homeowners insurance protects your investment against damages like fire, theft, and natural disasters. If you put down less than 20%, you might also need to pay for private mortgage insurance (PMI), which protects the lender if you default on the loan.

Example Calculation

Continuing with our $400,000 home example, let's say your annual property taxes are $4,800, and your homeowners insurance is $1,200. Therefore, your monthly tax payment would be $400 ($4,800/12), and your insurance would be $100 ($1,200/12). If PMI is required, that would be an additional cost.

ComponentMonthly Payment
Principal & Interest$2,661
Taxes$400
Insurance$100
Total PITI$3,161

Real-World Example

Imagine you're buying a home priced at $500,000 with a 20% down payment, thus borrowing $400,000. At a 7% interest rate, your principal and interest would be approximately $2,661 per month. With $4,800 in annual taxes and $1,200 for insurance, your total PITI would be about $3,161 monthly.

Common Mistakes or Considerations

  1. Focusing Solely on Principal and Interest: Many buyers underestimate the total cost by ignoring taxes and insurance, which can significantly impact affordability.
  2. Ignoring PMI: If your down payment is less than 20%, PMI can add hundreds to your monthly payment.
  3. Variable Costs: Property taxes and insurance can change yearly, so it's essential to budget for potential increases.

Bottom Line

Understanding your PITI is crucial for both budgeting and assessing what you can afford when purchasing a home. While the principal and interest are significant, don't overlook taxes and insurance as they collectively impact your financial health. By accounting for all these components, you can make informed decisions, ensuring that your home remains a financial asset rather than a burden. Always use a comprehensive mortgage calculator and consider consulting with a financial advisor to tailor the best mortgage strategy to your circumstances.

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Common questions about the How is my monthly mortgage payment calculated (PITI)?

Your monthly mortgage payment consists of four components (PITI): Principal (the loan amount you're paying down each month), Interest (the cost of borrowing from the lender), Taxes (annual property...