Seller Closing Costs Washington: Save $18,625 in 2026

Seller closing costs Washington homeowners pay land near 2.1% of the sale price before commission, and about 7.8% once you pay both agents. On the state’s $650,000 median, that’s roughly $13,700 in excise tax, title and escrow in King County, plus $37,050 in commission at the national average rate.

I’ve been pulling apart seller net sheets for a long time, and Washington’s is genuinely different from most states. Not because of title or escrow, which are boring and predictable everywhere. Because of the excise tax.

Most states charge a flat transfer tax or none at all. Washington charges a graduated one, it lands on the seller by statute, and around Seattle it runs past 1.6% of your sale price. On a median home that’s $10,625 gone before a single agent gets paid. Almost nobody budgets for it.

So here’s the real sheet on seller closing costs Washington sellers face, with 2026 numbers.

Seller Closing Costs Washington Sellers Actually Pay on a $650,000 Home

Washington’s median sold price was $650,000 in June 2026, unchanged from May and down 3.0% from $670,000 a year earlier, per the Northwest MLS market snapshot. That’s the number I’ll use for every seller closing costs Washington calculation below. It was a busy month: 6,847 residential and condo sales closed, against 23,088 active listings and 3.37 months of supply. Buyers have choices right now, which is exactly why your net sheet deserves a hard look before you list.

Below is what a seller in Seattle or most of King County is looking at. I’ve used midpoints for the ranges so the totals actually add up.

Line item	Cost at $650,000	Who pays it
State real estate excise tax (graduated)	$7,375	Seller, by statute
Local excise tax (0.50% in Seattle and most of King County)	$3,250	Seller
Owner’s title insurance policy	$1,400 to $1,900	Seller, by local custom
Escrow / closing fee (seller’s share)	$900 to $1,400	Usually split
Recording, reconveyance and the excise affidavit fee	About $300	Seller
Subtotal before commission	About $13,700
Listing agent commission at 2.88%	$18,720	Seller
Buyer agent commission at 2.82% (negotiable since 2024)	$18,330	Seller, if offered
Total, traditional listing	About $50,775 (7.8%)
Total, $95 flat fee listing + 2.82% to the buyer’s agent	About $32,150 (4.9%)

Two things jump out of that seller closing costs Washington breakdown. Commission is 73% of that total. And the excise tax by itself is more than three times title, escrow and recording combined. Those are the only two lines worth arguing about. Everything else is rounding.

The Excise Tax Is the Line That Surprises People

The biggest surprise buried in seller closing costs Washington sellers pay is the real estate excise tax, or REET, and it’s graduated. Each rate applies only to the slice of your sale price that falls inside that bracket, the same way federal income tax brackets work. The Department of Revenue publishes the current tiers, which took effect January 1, 2023:

• 1.10% on the portion up to $525,000
• 1.28% on the portion from $525,000.01 to $1,525,000
• 2.75% on the portion from $1,525,000.01 to $3,025,000
• 3.00% on everything above $3,025,000

Then your city or county stacks its local rate on top, either 0.25% or 0.50% depending on where the house sits. Seattle charges the full 0.50%. So does the rest of King County, Snohomish County, and Pierce County, including Tacoma. The 0.25% rate mostly shows up in smaller, rural counties like Klickitat and Grays Harbor. The DOR publishes a jurisdiction-by-jurisdiction rate schedule, and it’s worth checking yours rather than assuming.

Here’s how that math lands at four price points, with the 0.50% local rate added:

Sale price	State REET	Local REET at 0.50%	Total	Effective rate
$400,000	$4,400	$2,000	$6,400	1.60%
$650,000 (state median)	$7,375	$3,250	$10,625	1.63%
$889,000 (King County median)	$10,434	$4,445	$14,879	1.67%
$1,525,000	$18,575	$7,625	$26,200	1.72%

And this one is not negotiable between buyer and seller in any meaningful way. RCW 82.45.080 says flatly that the tax “is the obligation of the seller,” and if it goes unpaid the state can come after you by debt action or foreclosure. Budget for it as a certainty, not a maybe.

One wrinkle worth knowing: those bracket thresholds are not permanent. Under RCW 82.45.060, the DOR adjusts them every fourth year starting July 1, 2022, capped at the lesser of shelter CPI growth or 5%. The department has to publish the new numbers by September 1 of the adjustment year, and they take effect the following January 1. Do the arithmetic and 2026 is an adjustment year. If you’re selling a home priced anywhere near $525,000, the bracket line you’re sitting on may move on January 1, 2027. That’s a real reason to check the published figures rather than trusting a blog post from last spring, including this one.

Commission Is Still the Biggest Number on the Page

Excise tax gets the shock value, but commission is the largest slice of seller closing costs Washington sellers pay, by a wide margin. A February 2026 survey from Clever Real Estate puts the average listing-side commission at about 2.88% and the buyer’s side at 2.82%, for a combined 5.70%. On $650,000 that’s $37,050.

Since the NAR settlement changes took effect in August 2024, buyer agent compensation is negotiated separately and is no longer advertised in the MLS. Plenty of Washington sellers still offer something, because a buyer who has to pay their agent out of pocket has less to bring to your price. But the listing side is a different story. That 2.88% buys you a photographer, a lockbox, a listing on the NWMLS, and a person who negotiates on your behalf. Some sellers want all of it. Many just want the third thing.

That’s the split I’d actually think hard about. If you already know your neighborhood’s comps, you’re comfortable running a showing schedule, and you’ve read a purchase and sale agreement before, you’re paying $18,720 for MLS access and a lockbox. If you’ve never sold a house and the thought of an inspection renegotiation makes you sweat, full service is money well spent. Be honest with yourself about which one you are.

What a $95 Flat Fee Listing Does to the Math

A flat fee MLS listing replaces the listing-side percentage with a fixed price. You still get on the NWMLS, your home still syndicates out to Zillow, Redfin and the rest, buyer agents still see it and still show it. You just handle the seller-side work yourself instead of paying a percentage for it.

Run it at the state median. A 2.88% listing commission on $650,000 is $18,720. A HomeRise flat fee listing is $95. You keep $18,625. That is not a rounding difference. It’s roughly 175% of what you’ll hand over in excise tax, and it’s the single largest controllable line on a Washington seller’s closing statement.

The geography matters too. In Seattle, where the King County median ran $889,000 in June, the same 2.88% is $25,603 and the savings climb past $25,500. Down in Tacoma, where prices sit closer to the state median, you’re still keeping five figures. Our flat fee MLS Washington page has the market-by-market breakdown if you want to check your own city.

I’ll say the obvious caveat out loud: flat fee only pays off if you actually do the work. A flat fee cuts the part of seller closing costs Washington sellers control. It does nothing to the part the state controls. Price it wrong and you’ll sit on the market for two months in a 3.37-month-supply state, then cut your price by more than you saved. If you want the full playbook, start with how to sell a house by owner and our for sale by owner guide.

Form 17, Escrow, and What Washington Actually Requires

Washington is a disclosure state with teeth. RCW 64.06.020 requires you to deliver a completed seller disclosure statement, universally called Form 17, within five business days of mutual acceptance unless your contract says otherwise. It covers title and encumbrances, water and septic, structural conditions, systems and fixtures, HOA, environmental issues and any other material defects.

Here’s the part sellers miss. Once you deliver it, RCW 64.06.040 gives the buyer three business days to rescind the whole agreement in writing. No penalty, no negotiation. So a Form 17 that shows up late, or half-completed, or with a surprise on page four, hands your buyer a free exit right when you’re least able to absorb it. Fill it out carefully and deliver it fast.

The good news: Washington does not require an attorney to close. Residential transactions are handled by escrow companies staffed with Limited Practice Officers, licensed by the state supreme court under APR 12 to prepare and complete closing documents. The Washington State Bar Association explains the license. Practically, that means a seller without an agent is not left holding the paperwork alone. Escrow drafts the deed, calculates the excise tax, files the affidavit and disburses funds, which is most of the administrative weight inside seller closing costs Washington imposes. That’s a big reason selling by owner is more workable here than in attorney-state markets like New York.

Two small fees to know: the state adds a $5 technology fee to every transfer, and another $5 if you’re claiming an exemption. Trivial in dollars, but they’ll show up on your settlement statement and it’s better not to be confused by them.

Seller Closing Costs Washington: Frequently Asked Questions

Who pays the real estate excise tax when you sell a house in Washington?

The seller. RCW 82.45.080 states the tax is the obligation of the seller, and the Department of Revenue confirms that if the seller does not pay it, the buyer becomes responsible. In practice escrow calculates it, withholds it from your proceeds and files the affidavit at recording, so you never write a separate check. On the $650,000 state median in Seattle, that withholding is $10,625, the largest single item in seller closing costs Washington sellers face at that price.

How much are seller closing costs Washington sellers pay on a $650,000 home?

Roughly $13,700 before commission in King County: $7,375 state excise tax, $3,250 local excise tax, $1,400 to $1,900 for the owner’s title policy, $900 to $1,400 in escrow fees and about $300 in recording and affidavit charges. Add a 5.70% total commission and you are at roughly $50,775, or 7.8% of the sale price.

Do I need a real estate attorney to sell a house in Washington?

No. Washington closings are handled by escrow companies using Limited Practice Officers licensed under the state supreme court’s APR 12, who are authorized to select, prepare and complete real estate closing documents. Hiring an attorney is optional and usually reserved for complicated situations like probate, divorce or title defects.

Can I sell my house without a realtor in Washington and still be on the NWMLS?

Yes. The Northwest Multiple Listing Service requires a licensed broker to enter a listing, but a flat fee MLS service supplies that broker for a one-time fee instead of a percentage. Your listing appears on the NWMLS and syndicates to Zillow, Redfin and the major portals exactly like an agent-listed home. You handle showings, negotiation and disclosures yourself.

Is the Form 17 seller disclosure required if I sell by owner in Washington?

Yes. RCW 64.06.020 applies to the seller of improved residential property regardless of whether an agent is involved. You must deliver it within five business days of mutual acceptance unless the contract says otherwise, and under RCW 64.06.040 the buyer then has three business days to rescind the agreement in writing after receiving it. A buyer can waive the disclosure, but do not count on it.

Are Washington’s excise tax brackets changing in 2027?

Probably. RCW 82.45.060 requires the Department of Revenue to adjust the price thresholds every fourth year beginning July 1, 2022, capped at the lesser of shelter CPI growth or 5%, with new figures published by September 1 and effective the following January 1. 2026 is an adjustment year, so sellers closing in early 2027 near the $525,000 line should check the published thresholds before estimating the seller closing costs Washington will charge them.

The Bottom Line for Washington Sellers

Of the roughly $50,775 a traditional sale costs at the state median, about $13,700 is fixed. The excise tax is statute. Title, escrow and recording are what they are. Arguing over a $200 escrow fee is not where your energy belongs.

The other $37,050 is a choice. Sellers who understand seller closing costs Washington charges tend to focus on the wrong line, which is why I keep showing people this sheet. You cannot negotiate the state out of $10,625. You can absolutely decide whether the listing side of your commission is worth $18,720 to you, and for a lot of sellers in this market it isn’t.

If you want the national picture on the rest of the settlement statement, our guide to seller closing costs breaks down every line. Then come back and run your own numbers on Washington’s excise tax. The gap between what you’d pay and what you’d keep is usually bigger than people expect.