Washington mortgage calculator

This mortgage calculator will help you estimate the costs of your mortgage loan. Get a clear breakdown of your potential mortgage payments with taxes and insurance included.
Washington housing market
Washington, the Evergreen State, has a strong housing market, the sixth most expensive in the country, led by the Seattle metro which now is the sixth most expensive region in the United States. With Seattle-area companies growing rapidly, expect the crunch to only get worse unless housing supply or demand changes meaningfully. While it's hard to predict the future of the housing market, it's likely that Washington will continue to lead the country in apple, hops, and cherry production.

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Your monthly payment
30 year fixed loan term
Principal & interest


Property taxes

Homeowners insurance

Homeowners association (HOA) fees

Principal & interest


Property taxes

Homeowners insurance

Homeowners association (HOA) fees

Compare common loan types
Total principal: $240,000
Loan Term
30-year fixed
Your Input
15-year fixed
30-year fixed
Total Monthly Payment$1,599$2,067$1,528
Mortgage Rate4.125%2.774%*3.605%*
Total interest paid$178,737$53,658$153,056
* Data source: ©Zillow, Inc. 2006 – 2022. Use is subject to the Terms of Use
See how your payments change over time for your 30-year fixed loan term
At year 0
30 year fixed loan term

Principal Paid
Interest Paid
Year 0
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See latest mortgage rates
Get personalized mortgage rates from San Francisco, CA.
Principal & interest


Loan term

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Washington mortgage and refinance rates today (APR)

ProductInterest rateAPR
30-year fixed-rate3.786%3.840%
20-year fixed-rate3.251%3.336%
15-year fixed-rate2.927%3.052%
10-year fixed-rate2.440%2.579%
7/1 ARM2.844%2.967%
5/1 ARM2.721%2.946%
30-year fixed-rate FHA3.768%4.621%
30-year fixed-rate VA3.009%3.294%

Data source: ©Zillow, Inc. 2006 – 2021. Use is subject to the Terms of Use

Today's rate

30-year fixed

Today’s mortgage rates in Washington are 3.840% for a 30-year fixed, 3.052% for a 15-year fixed, and 2.946% for a 5/1 adjustable-rate mortgage (ARM).

Getting ready to buy a home? We’ll find you a highly rated lender in just a few minutes.

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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.

Home Advantage Downpayment Assistance

State program

Best for

Down payment assistance

What you need to know

Receive up to 5% of your loan amount in down payment assistance, depending on the type of loan you choose (conventional, FHA, VA, etc.). It’s a 0% interest loan, with payment deferred for 30 years. Repayment is due sooner if you sell the home or refinance the mortgage. Income limits apply, which...

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Washington's best mortgage lenders

NerdWallet has done the work for you to pick the best financing partner for you in Washington.

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Average property tax in Washington counties

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.

Avg. property tax rate
Avg. home value
Adams County1.0%$150,300
Asotin County0.94%$176,700
Benton County0.98%$238,900
Chelan County0.84%$289,900
Clallam County0.81%$256,200
Clark County1.04%$329,200
Columbia County0.88%$161,700
Cowlitz County1.0%$208,900
Douglas County0.89%$229,100
Ferry County0.63%$165,900
Franklin County1.07%$209,900
Garfield County0.96%$143,800
Grant County1.05%$177,900
Grays Harbor County1.03%$169,200
Island County0.78%$363,800
Jefferson County0.75%$304,000
King County0.88%$563,600
Kitsap County0.95%$326,200
Kittitas County0.73%$256,700
Klickitat County0.71%$219,200
Lewis County0.88%$197,900
Lincoln County0.76%$150,500
Mason County0.87%$206,700
Okanogan County0.76%$169,100
Pacific County0.96%$163,400
Pend Oreille County0.63%$186,000
Pierce County1.14%$300,200
San Juan County0.59%$452,300
Skagit County0.96%$303,400
Skamania County0.79%$248,500
Snohomish County0.96%$407,900
Spokane County1.06%$222,200
Stevens County0.76%$184,600
Thurston County1.07%$283,400
Wahkiakum County0.82%$202,600
Walla Walla County1.05%$196,300
Whatcom County0.81%$355,500
Whitman County1.05%$199,400
Yakima County0.97%$177,700

Source: American Communities Survey 2016, U.S. Census

Under "Home price," enter the price (if you're buying) or the current value (if you're refinancing). NerdWallet also has a .

Under "Down payment," enter the amount of your down payment (if you’re buying) or the amount of equity you have (if refinancing). A  is the cash you pay upfront for a home, and  is the value of the home, minus what you owe.

On desktop, under "Interest rate" (to the right), enter the rate. Under "Loan term," click the plus and minus signs to adjust the length of the mortgage in years.

On mobile devices, tap "Refine Results" to find the field to enter the rate and use the plus and minus signs to select the "Loan term."

You may enter your own figures for  and , if you don’t wish to use NerdWallet’s estimates. Edit these figures by clicking on the amount currently displayed.

The mortgage calculator lets you click "Compare common loan types" to view a comparison of different loan terms. Click "Amortization" to see how the principal balance, principal paid (equity) and total interest paid change year by year. On mobile devices, scroll down to see "Amortization."

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The mortgage payment calculation looks like this: M = P [ i(1 + i)^n ] / [ (1 + i)^n – 1]

The variables are as follows:

Determining what your monthly house payment will be is an important part of figuring out how much house you can afford. That monthly payment is likely to be the biggest part of your cost of living.

Using NerdWallet’s mortgage calculator lets you estimate your mortgage payment when you buy a home or refinance. You can change loan details in the calculator to run scenarios. The calculator can help you decide:

Mortgage lenders are required to assess your ability to repay the amount you want to borrow. A lot of factors go into that assessment, and the main one is debt-to-income ratio.

Your  is the percentage of pretax income that goes toward monthly debt payments, including the mortgage, car payments, student loans, minimum credit card payments and child support. Lenders look most favorably on debt-to-income ratios of 36% or less — or a maximum of $1,800 a month on an income of $5,000 a month before taxes.

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If your mortgage payment included just principal and interest, you could use a bare-bones mortgage calculator. But most mortgage payments include other charges as well. Here are the key components of the monthly mortgage payment:

Typically, when you belong to a homeowners association, the dues are billed directly, and it's not added to the monthly mortgage payment. Because HOA dues can be easy to forget, they're included in NerdWallet's mortgage calculator.

The mortgage calculator lets you test scenarios to see how you can reduce the monthly payments:

Your monthly payment can go up over time if: