Moving to Seattle from Denver: What to Know (2026 Guide)

Updated November 2026. By Ryan Palardy, JD, Real Estate Agent and Washington Attorney, Get Happy at Home at Compass.

You’d be part of an even trade. In the most recent IRS migration data (tax filings from 2022 to 2023), about 1,150 people moved from the Denver area (Denver, Adams, Arapahoe, Broomfield, Douglas and Jefferson counties) to King County, and about 1,120 went the other way. The two cities swap people at almost exactly the same rate, which tells you something: they’re close cousins. Outdoorsy, tech-heavy, expensive, built around one downtown and a lot of neighborhoods people argue about. The differences are in the details, and the details are where the money is.

The money: what your Denver budget buys in Seattle

Sources: home prices, price per square foot and days on market from Redfin’s Denver and Seattle housing market pages (all home types, three months ending September 2026, read November 7, 2026). Rents are average apartment asking rents from Apartments.com, October 2026. Colorado assessment rates from the Division of Property Taxation (October 2025) and HB24B-1001; Denver mill levy and the Assessor’s own example from the Denver Assessor. Seattle property tax bills from our NWMLS pull of Seattle house sales, October 2025 to September 2026 (5,717 sales). Documentary fee from C.R.S. 39-13-102. Income and estate tax from the Tax Foundation (2026). Sales tax from Avalara. Insurance from NerdWallet’s 2026 averages for a policy with $400,000 of dwelling coverage. Sunshine from NOAA’s 1991 to 2020 climate normals.

So the median Seattle home costs about 43% more, and about 55% more per square foot. That gap is smaller than it looks if you’re coming from Wash Park, Cherry Creek or the Highlands, where prices already run ahead of the city median, and bigger if you’re coming from Aurora or the south suburbs. If you’re shopping for a detached house, figure on more like $993k: that was the median for detached Seattle houses that sold from July through September (our own pull of NWMLS data, 1,162 sales). The median across all of King County was $850,000 in September, per the NWMLS. A Denver bungalow budget buys a Seattle house of the same age with a smaller lot, a basement, and a hill.

Rent is the sharper difference. Denver’s average asking rent is about $490 a month below Seattle’s, which is a 30% jump, so renting while you look costs more here than it did there. I’d still do it for six months to a year, through a winter, because the winter is the thing you need to test.

Then there’s speed. Denver homes are taking about 35 days to sell, and Redfin counts two offers on the average house, so you’re used to a market that’s cooled off from 2021. Seattle homes are taking 19 days, with the same two offers. You’re used to having time to think, get a second showing, and work the inspection objection deadline. On the right Seattle house you usually don’t get that, which is a big reason we do the homework (inspection notes, repair costs, comps) before you’re standing in the living room. That said, Seattle buyers have more choice than they did a year ago: King County had 31% more listings in September than the year before, and Seattle prices slipped 2.7% over the past year while Denver’s rose 4.7%.

Taxes: leaving Colorado, arriving in Washington State

This is a smaller tax win than Californians get, and one line goes hard the other way. Here’s the honest version.

1. Income tax: a flat 4.4% becomes zero

Colorado taxes income at a flat 4.4%, and TABOR trims it in years when the state collects too much (it was 4.25% for 2024; there was no cut for 2025). Denver adds a $5.75 a month occupational privilege tax on anyone earning over $499 a month. Washington has no income tax on wages at all. A household with $250,000 of taxable income is paying about $11,000 a year to Colorado. In Seattle that line is zero. It’s not the windfall a Bay Area transplant gets, but it covers a good share of the mortgage difference, and it’s the line that makes the property tax increase below survivable.

Two Washington taxes to know about. The capital gains tax is 7% on long-term gains above an annual deduction ($278,000 for 2025, adjusted each year for inflation) and 9.9% on gains over $1 million. Real estate is exempt. Stock isn’t, so if you’re sitting on a big position, talk to your CPA about timing before you establish Washington residency. And in March 2026, Washington passed a 9.9% tax on household income above $1 million, starting with tax year 2028; voters kept it in November 2026 by rejecting Initiative 645. If your household earns under $1 million a year, it doesn’t touch you.

2. Property tax: the rate doubles and so does the bill

Colorado’s residential property taxes are low, and you’re about to find out what that was worth. For tax year 2025, Colorado assesses a home at 7.05% of its value for school district levies and 6.25% for everything else, per the Division of Property Taxation, and Denver’s combined levy runs about 79 mills (79.202 in 2024, per the Denver Assessor, which used a $631,800 house to show a bill of about $3,061). Run the 2025 numbers on the $597k median and you get about $3,200 a year, roughly half a percent of value. In 2026 the local rate moves to 6.8% of value after a subtraction of up to $70,000, under HB24B-1001, so bills tick up but stay in the same neighborhood.

Seattle’s effective rate is about 0.98% of full market value, with no assessment ratio and no subtraction, and the typical house that sold here over the past year carried about $8,400. State law requires every county to revalue every property every year, so the bill follows the market rather than Colorado’s two-year cycle. (Washington limits how fast each taxing district’s total levy can grow, so bills don’t track values one for one, but there’s no cap on your house’s number.) Budget for roughly $5,000 a year more, and more than that on a detached house. If you want to check an assessment once you’re here, we wrote about King County assessment errors.

3. Insurance drops, sales tax rises, and the estate tax is new

Here’s the line that pays for a chunk of the property tax. NerdWallet’s 2026 averages for a policy with $400,000 of dwelling coverage are about $6,315 a year in Denver and about $1,690 in Seattle. The reason is hail. Colorado’s Division of Insurance says hail accounts for 26% to 54% of homeowners premiums in the state, wildfire 1% to 25%, and Colorado ranks second in the nation for hail claims. Seattle gets hail about the way it gets snow: rarely, briefly, and small. Seattle houses usually need more coverage than $400,000, and earthquake coverage is a separate policy (more below), so budget higher than $1,690, but a $4,000 a year swing in your favor is a reasonable expectation.

Sales tax goes up, from 9.15% in Denver to 10.55% here, and you’ll notice it on the car, the furniture and the appliances, which is to say right after you move. On estates, Colorado has none. Washington, for deaths on or after July 1, 2026, exempts the first $3 million and taxes the rest from 10% to 20%. A paid-down Seattle house plus two retirement accounts gets to $3 million faster than people expect, so this is a new line in your estate plan, not an adjustment to an old one.

If you freelance or run a business

Washington has no income tax, but it does have a business and occupation (B&O) tax, charged on gross receipts rather than profit. If you’re a contractor or consultant earning $12,000 or more a year, the Department of Revenue expects you to register and file. A small business credit wipes out the tax for a lot of solo operators, but you still have to register to get it. Seattle also requires its own business license, and starting in 2026 Seattle’s own B&O tax doesn’t kick in until $2 million in revenue. Worth a call to a Washington CPA early.

Which Seattle neighborhood is like your Denver neighborhood?

One warning: Seattle neighborhoods change block to block, partly because of the hills and partly because of the age of the houses. Denver’s older neighborhoods have that quality; the newer suburbs don’t. There are almost no master-planned communities inside the city, no HOA on most houses, and no guarantee the house next door was built in the same decade as yours. That’s why we start new clients with a learning tour before anyone writes an offer.

Seattle houses: older than yours, built of wood, no hail

This is the section I’d read twice. Among the detached houses that sold in Seattle from July through September 2026, the median one was built in 1945, about 39% were built before 1940, and 72% before 1960 (our NWMLS pull, 1,162 sales). If you’ve owned a Denver Square or a brick bungalow in Wash Park or the Highlands, you know what an old house asks of you. If you’ve owned a 1990s house in Highlands Ranch or a 2010s house in Central Park, you’re about to learn, and the learning is the point of this section. (Our decade-by-decade guide to Seattle homes covers what each era tends to have.) New construction exists, but it’s mostly townhouses in the city and single-family in the far suburbs, and it carries a premium.

The differences are material, literally. Denver’s old houses are brick; Seattle’s are wood frame, because the trees were here and the clay wasn’t, and a wood house that’s been wet for 80 winters has its own habits: rot at the sill, moss on the roof, and a crawl space instead of a full basement under a lot of them. Your expansive soils and foundation movement become our drainage and settling. Your hail roof becomes our moss roof, and it lasts longer. The sewer line and the radon test come with you (radon is less of an issue in most of Seattle, but test anyway). Here’s what the usual suspects cost, from our construction company’s billed jobs where we have them and current Seattle contractor pricing where we don’t:

None of these is a reason to skip an old house. They’re reasons to read the inspection for dollars. Get the sewer scoped on video on every house. Ask whether the house ever heated with oil. Look at drainage around the foundation and in the crawl space, because that’s where Seattle’s rain shows up first. A Seattle home inspection will flag most of this, and we price the big items on the spot when we tour, because that’s the number that should move your offer.

Air conditioning is the one you’ll notice. About 53% of Seattle-area homes had it in 2021, per the Census Bureau’s American Housing Survey, and most of the older houses on your tour won’t. You can live without it most years, because the average July high is 77°F and the nights cool off, and a ductless heat pump fixes it for the two hot weeks a year. Denver summers are dry too, so this is a smaller adjustment for you than for most. One you’ll like: water boils at 212 degrees here instead of about 202, so the pasta box instructions finally work.

Earthquakes are new. Besides local faults like the Seattle Fault, the region sits near the Cascadia Subduction Zone offshore, which can produce a very large, long-shaking quake. Older houses that aren’t bolted to their foundations are the ones that slide, and the retrofit is in the table above. Earthquake coverage is something you add to your homeowners policy or buy separately, and the deductible typically runs 10% to 25% of the coverage on the house, according to the Washington Insurance Commissioner. Get the quote before you close and decide with real numbers. Even with it, you’ll very likely come out well under your Denver premium.

Weather: milder, wetter, and a lot grayer

Here’s the number nobody from Denver believes: Seattle gets less snow than you do by a factor of eight. Denver International averages about 49 inches a year on 31 days. Sea-Tac averages about 6 inches on five. Seattle’s January nights are 19 degrees warmer than yours. The catch is everything else in this table.

Sources: NOAA 1991 to 2020 climate normals (Denver International Airport, Sea-Tac Airport for Seattle). Daylight from sunrise-sunset.org.

You are giving up the sun, and I’m not going to talk you out of noticing. Denver gets about 3,100 hours of sunshine a year, 70% of what’s possible. Seattle gets about 2,170, 49%. The gap is about 940 hours, and nearly all of it is October through May, when Seattle gets its 39 inches of rain as drizzle on 156 days. Nobody carries an umbrella because it’s rarely raining hard enough to need one, and the rain jackets are not optional. Around the solstice, Seattle gets about eight and a half hours of daylight, 55 minutes less than Denver, and plenty of those hours are gray. A good lamp and a February trip somewhere sunny do a lot of work here.

What you get back: a July afternoon that averages 77 degrees instead of 90, with no afternoon thunderstorm; a January that’s cold and damp rather than cold and icy; and summers that are dry, sunny and long, with the sun setting after 9 p.m. in late June. From July through September it almost never rains. Your yard stays green most of the year without a sprinkler system, and if the lawn goes brown in August, it comes back with the October rain. Denver Water’s three-days-a-week rule has no equivalent here.

What you won’t miss: hail season, a 95-degree week, the brown cloud, a 60-degree swing in one afternoon, and scraping the windshield. What you will: the sun, the dry air, the way the mountains are right there. The Cascades are an hour east and the Olympics across the Sound, but you look at them more than you walk into them, because the trailheads are a longer drive than yours and the snow level is lower. The mountains here are also wetter, which is why they’re green.

Getting around: a rail system about the size of RTD’s, and no mountain traffic

The average commute in the Denver metro is 27.7 minutes. In the Seattle metro it’s 30.0 (Census Reporter, ACS 2024). A little longer, and you’ll do more of it in traffic, because Seattle has water on both sides, two freeways, and two bridges across the lake. One stalled car on I-5 is everyone’s problem. There’s no I-70 ski traffic equivalent, which is the trade.

Rail is about the same size. RTD runs six light rail lines over 60 miles of track with 57 stations, plus four commuter rail lines over 54 miles with 27 more, per RTD’s own figures. Link light rail runs 63 miles with 51 stations, and by Sound Transit’s counts reported this fall carries more than 160,000 boardings a day. The A Line to DIA has a cousin here: Link runs from downtown to Sea-Tac. Since March 28, 2026 the 2 Line crosses Lake Washington, connecting Seattle with Mercer Island, Bellevue and Redmond, and extensions to West Seattle and Ballard are planned for the 2030s (we have opinions about Ballard’s). If living car-free matters to you, the honest advice is to buy within a 15-minute walk of a Link station: Capitol Hill, the U District, Roosevelt, Northgate, Columbia City, Beacon Hill or downtown Bellevue and Redmond on the Eastside. The bus network does a lot of the work here, and plenty of our Capitol Hill clients use their cars less than once a week. Outside those corridors, you’ll want a car, and most households here have one. Biking is hillier and wetter but year-round, and the Burke-Gilman is our Cherry Creek Trail.

If you’ll drive across the lake, I-90 is free and SR 520 is tolled in both directions: as of October 2026, up to $4.90 at weekday rush hour with a Good To Go pass and $6.90 if they mail you the bill. Your ExpressToll pass doesn’t work here. Good To Go is the Washington equivalent, and it also covers the SR 99 tunnel under downtown and the express lanes on I-405. One more thing: you’re an hour behind Denver now. The markets open at 6:30 a.m.

Jobs and schools

If you’re transferring with Amazon, Microsoft or another big employer, you already know the address. If you’re coming without a job, here’s the straight version. Denver’s economy has aerospace (Lockheed Martin Space, ULA and the satellite builders around Boulder), energy, the outdoor industry, big health systems, a mid-size tech scene, and a lot of federal workers: the Denver Federal Center in Lakewood is “the largest concentration of federal agencies outside Washington, D.C.,” with about 6,000 employees on the campus and more than 5,000 more federal employees elsewhere in Lakewood, per the City of Lakewood, and the federal cuts since early 2025 have landed there too. Seattle’s federal presence is small (NOAA, EPA’s regional office, the VA, the military bases), and the job market here tilts hard toward a few very large tech employers that have had a rough few years of their own. By our count, King and Snohomish counties added about 42,000 tech jobs from late 2019 to August 2022, then lost about 29,000 of them by early 2025. (We dug into what that’s doing to Eastside home prices in this post.) Where Denver experience lands here: aerospace is the natural bridge (Boeing, Blue Origin in Kent, the contractors around JBLM and Kitsap), then the health systems and research institutes, the outdoor brands around REI, and the big tech companies’ operations teams. My advice: get the offer letter before you sign a purchase agreement, and if you’re consulting, read the B&O paragraph above twice.

For schools, if you’re used to Denver’s choice system and the Cherry Creek and Douglas County districts being the whole reason a house costs what it does, Seattle is a little less stark. Seattle Public Schools assigns by address, and the Eastside cities have their own districts (Bellevue, Lake Washington for Kirkland and Redmond, Mercer Island, Issaquah and Northshore). Boundaries don’t follow neighborhood names, so check the district’s boundary lookup for the exact address before you offer.

A lot of families moving here rule out Seattle Public Schools on reputation alone and head straight for the Eastside, the way Denver families head for Cherry Creek. I think that’s often a mistake, and we wrote about why Seattle’s schools are better than their reputation. If you’re buying for the long haul, our post on Seattle’s sleeper schools covers the ones we think will improve the most.

Your first 30 days in Washington State

Driver’s license. State law gives you 30 days after you move to get a Washington driver’s license, and you need it before you can register your car here.

Car registration. New residents also have 30 days to register their vehicles in Washington. No emissions test and no safety inspection: Washington ended its emissions program in 2020. In King County the bill includes Sound Transit and transit fees, so expect something closer to a Colorado specific ownership tax bill than a flat fee.

Register to vote. Washington votes entirely by mail, like Colorado, so this one will feel familiar. Register at your new address and the ballot comes to you. Then cancel your Colorado registration.

Move the rest of your life. Change your address with your bank, brokerage and employer, and move your doctors when you can. Tell your employer’s payroll team the move date so your Colorado withholding and Denver’s head tax stop. You’ll file a part-year Colorado return for the year you move.

Good To Go pass. If you’ll cross SR 520, use the SR 99 tunnel or the express toll lanes on 405, set up a Good To Go account before your first trip. Pay-by-mail costs $2 more per crossing on 520.

Fall maintenance. Gutters and roof moss are an annual thing here. Gutter cleaning runs about $200 to $500 and roof moss removal about $500 to $800 from Seattle companies. Sprinkler blowouts, on the other hand, come off the list, because most houses don’t have sprinklers.

Should you sell your Denver place or rent it out?

Denver is a licensed rental market now, and a slow one. Rents there are about $490 a month below Seattle’s on a house that cost less, so the yield is thin unless you bought years ago, in which case your mortgage rate is the asset. Plenty of people in your spot keep the place, especially if there’s a chance they’ll move back.

Before you do, here’s what keeping it means. Since January 1, 2024, every single-unit long-term rental in Denver needs a residential rental property license: an inspection by a city-registered home inspector, an application within 90 days of it, and a renewal with a new inspection every four years, with fines up to $1,000 per violation if you skip it. Short-term rentals are only allowed at your primary residence, so you can’t Airbnb the house from Seattle. You’ll file a nonresident Colorado return on the rent. The bigger issue is the federal capital gains exclusion on your home sale: a house you rent out long enough stops being your principal residence. The general rule is that you have to have lived there two of the last five years, so you have roughly three years after moving out before that window closes. And you’ll be managing a property from 1,300 miles away in a market where homes take about 35 days to sell and prices have been flat to up a few percent, so if you ever need to get out quickly, you won’t. None of that makes it a bad idea. It means you should run the numbers with a CPA before you decide.

If you sell, Colorado makes it cheap on the tax side: the documentary fee is one cent per $100, about $60 on the median house, and there’s no Denver transfer tax. Timing is the issue. Denver homes are taking about 35 days to sell and Seattle homes about 19, so your Denver sale will probably take longer than your Seattle purchase. Offers contingent on selling another house are hard to win on Seattle houses that are drawing multiple offers. Most people in your spot either sell first and rent here for a bit, or line up a bridge loan with a lender who does them. Condos are the exception: King County had 7 months of condo inventory in September, so a condo buyer has more room to negotiate. (Our guide to the main loan types is a decent primer before you call a lender.) On the Washington side, the transfer tax here (the real estate excise tax) is graduated and paid by the seller, so plan for it when you eventually sell here, not when you buy.

Buy or rent here? If you know where you’ll work and you’ve spent real time in a couple of neighborhoods, I think buying soon makes sense, because buyers have more room now than they did in 2025. If you don’t know the neighborhoods yet, or you don’t know whether the job is permanent, rent for six months to a year, through a winter, and see whether the gray bothers you before you commit. Our list of first-time buyer mistakes is worth a read even if it isn’t your first house.

FAQ: moving from Denver to Seattle

Disclaimer: This article is general information, not legal, tax or financial advice. Tax rules, ballot measures and market numbers change, and costs vary by house. Talk with your own CPA, attorney, inspector and contractor before making decisions.