Mortgage Calculator & Tools
Estimate your monthly mortgage payment including principal, interest, taxes, and insurance. See how different home prices, down payments, and rates affect your budget.
Your monthly mortgage payment is made up of several components, often referred to as PITI:
The amount you borrowed to buy the home. Each month, a portion of your payment goes toward reducing this balance.
The cost of borrowing money from the lender. Your interest rate determines how much you pay. In the early years of your mortgage, most of your payment goes toward interest rather than principal.
Annual taxes assessed by your local government based on your home's value. These are typically divided into 12 monthly payments and held in an escrow account by your lender.
Not all mortgage payments stay the same. Understanding what can change helps you plan for the long term.
Your principal and interest payment never changes over the life of the loan. However, property taxes and insurance can increase annually, which means your total payment may still go up over time.
Even with a fixed-rate mortgage, expect your payment to increase slightly every few years as taxes and insurance adjust.
Your interest rate—and therefore your payment — can change after an initial fixed period (typically 5, 7, or 10 years).
ARMs can be beneficial if you plan to sell or refinance before the adjustment period, but they carry risk if rates rise significantly.
During the interest-only period (typically 5-10 years), you only pay interest—no principal. After this period ends, your payment increases dramatically as you begin paying both principal and interest on a shortened timeline.
Even a 0.5% rate difference significantly impacts your payment.
Get quotes from multiple lenders and negotiate. Tri Valley offers competitive rates and $0 lender fees on refinances.
Better credit = lower rates. Even a 20-point credit score increase can drop your rate by 0.25-0.5%.
A 30-year mortgage has lower payments than a 15-year, though you'll pay more interest over time.
You'll pay $181,680 more in interest over the life of a 30-year loan.
The most direct way to lower your payment is to lower your purchase price. Consider starting with a smaller home or a fixer-upper.
Some loan types have lower payments:
Instead of 12 monthly payments, make 26 bi-weekly payments (half your monthly amount). This equals 13 full payments per year, paying off your loan faster and reducing total interest.