Oregon Mortgage Calculator

By SoFi Editors | Updated September 22, 2025

If you’re thinking about buying a home, whether you’re a first-timer or on your second or third purchase, a mortgage calculator is an important tool as you navigate the housing market. Our free Oregon mortgage calculator can help you see how different home prices, interest rates, and loan terms would affect your monthly payments and your overall loan costs so that you can make smart, sustainable home-buying decisions you’ll feel confident about. Let’s explore how it works.

Key Points

•   A mortgage calculator can make it easier to understand what impact factors such as your down payment, interest rate, and loan term will have on your monthly payments and overall loan costs.

•   It’s a smart move to explore Oregon’s down payment assistance programs, which may help reduce your upfront home-buying costs.

•   According to the 28/36 rule, you should spend 28% or less of your gross monthly income on your monthly mortgage payment, and no more than 36% on all debt payments.

•   A longer loan term means your monthly payments will be lower, but your overall interest costs will skew higher, while a shorter term involves higher monthly charges but lower costs for total interest.

•   You may be able to lower your monthly payments by putting down a larger down payment, opting for a longer loan term, or shopping around to find a lender who will offer you a more favorable interest rate.


Oregon Mortgage Calculator


Calculator Definitions

• Home price: This is the purchase price that you and the seller agree upon after negotiating. This figure will probably not be the same as the original listing price or your initial offer.

• Down payment: This is the lump sum you agree to pay upfront for your new home. A down payment is generally expressed as a percentage of your total purchase price, and most buyers put down between 3% and 20%. Down payment assistance programs are often available to first-time homebuyers to help cover this cost.

• Loan term: This is the length of time you will have to repay your home loan, typically 15 or 30 years. A 15-year term will mean you have higher monthly payments but might save you thousands in interest compared to a 30-year term.

• Interest rate: This is what your lender charges you for loaning you your mortgage. Your interest rate is expressed as a percentage of your home loan.

• Annual property tax: Property tax is levied by local governments on land and buildings, and it’s expressed as a percentage of the property’s assessed value. To find the local tax rate where you’re buying a home, search online for the town, county, or ZIP code where the property is located and “effective property tax rate.”

• Monthly payment: This is the amount you’ll pay your lender every month. The monthly payment shown by the Oregon mortgage calculator includes the loan principal and interest, and if you enter your tax rate, it can incorporate property taxes, too.

• Total interest paid: This is the amount of interest you’ll pay over the entire life of the loan. A larger down payment and a shorter loan term can both reduce this figure.

• Total loan cost: This is the complete amount that you’ll repay for the loan, including both principal (what you borrowed) and interest.