Washington Mortgage Refinance Calculator

By SoFi Editors | Updated November 21, 2025

Refinancing your home loan in Washington could help you lower your monthly payment, shorten your loan term to save on interest, or tap into the equity in your home. However, there are costs involved with refinancing, and a mortgage refinance calculator can help you determine if refinancing is worth it.

Our Washington mortgage refinance calculator estimates your monthly mortgage payments, accounts for fees, and helps you determine your break-even point. Keep reading to learn how to use the Washington mortgage refinance calculator and to figure out if refinancing is right for your financial situation.

Key Points

•  A Washington mortgage refinance calculator can help you estimate potential savings and costs, making it easier to decide if refinancing is right for you.

•  The break-even point allows you to determine when the savings from refinancing will outweigh the initial costs.

•  Switching from an adjustable-rate mortgage to a fixed-rate mortgage can provide financial stability and protection against future rate increases.

•  Extending the loan term can lower monthly payments but increase the total interest paid over the life of the loan, while shortening the term can do the opposite.

•  Building your credit score can lead to more favorable interest rates and terms, potentially saving you a significant amount of money on your refinance.



Washington Mortgage Refinance Calculator


Calculator Definitions

•  Remaining loan balance: The remaining loan balance is the principal amount you still owe on your current home loan.

•   Current/New interest rate: Interest is the percentage of the total loan amount that the lender charges. The difference between your current and new interest rates will determine potential savings from refinancing.

•   Remaining/New loan term: The remaining loan term is the time left to repay your existing mortgage. The new loan term is the duration of the proposed refinance.

•   Points: Mortgage points are upfront fees paid to the lender to reduce the interest rate. Each point costs 1% of the loan amount and can lower your monthly payments.

•   Other costs and fees: Other costs and fees include origination, appraisal, attorney fees, and closing costs. These typically range from 2% to 5% of the new loan amount.

•   Monthly payment: Your monthly payment includes the principal and interest on your home loan. It may also include homeowners insurance and property taxes.

•   Total interest: Total interest is the cost you pay to the lender over the life of the loan, excluding the principal amount. Comparing the total interest of your current and potential refinance loans helps determine long-term savings.