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Washington Mortgage Calculator

Use this free Washington mortgage calculator to estimate your monthly mortgage payments and annual amortization.

Loan details

%

Monthly payment

$2,140

at 7.05% · 30-year fixed

  • Principal & interest

    $1,605

  • Property taxes

    $375

  • Homeowners insurance

    $160

Loan amount

$240,000

Total interest paid

$337,726

Payoff date

—

YOU'RE KEEPING $11,089

$11,089

stays in your pocket

That's your total savings over 30 years at today's best rate on NerdWallet (7.05%) vs. the 7.24% national average — $31 less every month.

  • Today's best rate: 7.05%

  • Get your free rate with no credit impact

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No impact to your credit score

Calculated payments and savings are estimates. The calculator result does not constitute an offer for a loan and will not solicit a loan offer. Savings will depend on the actual amounts and rate for which you are approved, should you choose to apply.

Getting a Mortgage in Washington

Written by 
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Last updated May 7, 2026
Real estate markets can vary dramatically by location, which is why national housing averages don’t always reflect what buyers actually pay. Housing costs are just one part of affordability, and tools like a cost of living calculator can help show how factors such as taxes, utilities, and everyday expenses differ from place to place.
Mortgage costs in Washington, the Evergreen State, vary depending on where you buy. In King County, home to Seattle and some of the state’s most expensive housing markets, the typical monthly mortgage payment for a median-priced home was $5,338 in Q1 2025, based on a median home value of $910,695, according to the National Association of Realtors. By comparison, the national median monthly payment was $2,120 for a median-priced single-family home valued at $402,300.
By contrast, Pierce County, home to Tacoma, is more affordable. There, the typical monthly mortgage payment was $3,385 for a median-priced home valued at $577,572, reflecting more moderate home prices outside Washington’s highest-cost areas.

Washington mortgage and refinance rates today (APR)

ProductInterest rateAPR
30-year fixed-rate7.433%7.446%
20-year fixed-rate7.334%7.347%
15-year fixed-rate6.603%6.630%
7-year ARM7.636%7.312%
5-year ARM7.625%7.229%
30-year fixed-rate FHA5.490%6.210%
30-year fixed-rate VA6.767%7.120%
Data source: ©Zillow, Inc. 2006 – 2026. Use is subject to the Terms of Use

Today's rate

7.446%

30-year fixed

Today's mortgage rates in Washington are 7.446% for a 30-year fixed, 6.630% for a 15-year fixed, and 7.229% for a 5-year adjustable-rate mortgage (ARM).

Washington's first-time home buyer programs

The Washington State Housing Finance Commission, or WSHFC, offers several loan programs to help qualified first-time home buyers get a mortgage.
» MORE: First-time home buyer programs by state

Average property tax by county

Taking U.S. Census data, NerdWallet has crunched the numbers to help you understand what property tax rate you can expect to pay on your future home in Washington. Because assessed values aren't frequently updated, you may pay a higher rate at first but eventually you'll pay a similar rate.

CountyAvg. property tax rateMedian home value
Adams County0.86%$216,900
Asotin County0.76%$266,400
Benton County0.82%$394,200
Chelan County0.73%$492,700
Clallam County0.70%$431,400
Clark County0.83%$532,400
Columbia County0.78%$229,600
Cowlitz County0.80%$413,500
Douglas County0.81%$366,800
Ferry County0.59%$252,700
Franklin County0.83%$381,300
Garfield County0.80%$190,000
Grant County0.80%$284,400
Grays Harbor County0.84%$300,600
Island County0.67%$598,700
Jefferson County0.65%$449,300
King County0.78%$862,200
Kitsap County0.79%$538,400
Kittitas County0.65%$417,600
Klickitat County0.61%$352,500
Lewis County0.72%$379,200
Lincoln County0.61%$232,500
Mason County0.80%$429,300
Okanogan County0.71%$251,100
Pacific County0.77%$252,100
Pend Oreille County0.60%$288,200
Pierce County0.91%$538,500
San Juan County0.56%$673,700
Skagit County0.81%$520,900
Skamania County0.61%$443,000
Snohomish County0.79%$713,200
Spokane County0.84%$415,500
Stevens County0.68%$277,300
Thurston County0.88%$488,100
Wahkiakum County0.62%$319,100
Walla Walla County0.88%$331,600
Whatcom County0.71%$601,200
Whitman County0.79%$298,500
Yakima County0.81%$300,000
Source: American Communities Survey 2022, U.S. Census

How to use the mortgage calculator

To use our mortgage calculator, add your details to the following fields:
  1. Home price
  2. Down payment
  3. Interest rate
  4. Loan term (years)
After you enter this information, the calculator displays the monthly payment, as well as:
  • Total principal
  • Total interest payments
  • Payoff date
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Calculating costs in addition to principal and interest

The calculator lets you fine-tune your payment by entering your annual property tax premium, annual home insurance premium, monthly homeowner association (HOA) fee, and monthly private mortgage insurance (PMI) premium.
To enter this information, click “Show Advanced Info” underneath the main loan details. Note that you'll enter the annual cost for property taxes and home insurance and the monthly cost for HOA fees and PMI premiums. The PMI field will only display if your down payment is less than 20%.
In the “Loan Estimate” window, select "Amortization Schedule" to uncover a table that shows how much you'll pay in principal and interest each month, as well as the remaining amount you owe ("Principal balance") after making the payment.
» MORE: What is mortgage amortization?

Explanation of terminology

  • Total monthly payment: An estimate of all your monthly housing costs, covering your loan principal, interest, taxes, insurance, and PMI.
  • Total principal: This is the amount you borrow. Each mortgage payment reduces the principal you owe.
  • Total interest payments: How much interest you would pay over the life of the loan.
  • Total loan payments: The entire amount of principal and interest paid, excluding taxes, insurance, and PMI.
  • Down payment: The portion of the home’s price you pay in cash upfront. 
  • Interest rate: How much the lender charges you to lend you the money. Interest rates are expressed as an annual percentage. A lower interest rate gives you a smaller monthly payment.
  • Loan term (years): The number of years you have to repay the mortgage. A longer term gives you a lower monthly payment, but you’ll pay more interest.
  • Start date: The month that your first mortgage payment is due.
  • Payoff date: The month your home will be fully paid off based on the loan term.
  • Property taxes: The annual tax assessed by a government authority on your home and land. You pay about one-twelfth of your annual property tax bill with each mortgage payment, and the servicer saves them in an escrow account. When the taxes are due, the loan servicer pays them.
  • Homeowners insurance: Your policy covers damage and financial losses from fire, storms, theft, a tree falling on your house and other bad things. As with property taxes, you pay roughly one-twelfth of your annual homeowners insurance premium each month, and the servicer pays the bill when it's due.
  • Monthly HOA fees: The amount you may pay each month if you belong to a homeowners association. Typically, these dues are billed directly, not added to the monthly mortgage payment. Because HOA dues can be easy to forget when considering the cost of homeownership, NerdWallet's mortgage calculator allows you to enter them here.
  • Private mortgage insurance: If you get a conventional mortgage and put down less than 20%, you’ll have to pay a monthly PMI premium. It covers the lender if you default on the loan and can be canceled once you reach 20% equity. FHA loans require a similar fee called a mortgage insurance premium. 
If you're looking to see how much you could save by refinancing your mortgage, try NerdWallet's refinance calculator.
» MORE FOR CANADIAN READERS: Canada mortgage payment calculator
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