1031 Exchange Washington State: Rules, REET Interaction, and the Capital Gains Trap

Federal 1031 exchange rules apply uniformly across all states — Washington included. The 45-day identification window, the 180-day completion deadline, the requirement for a Qualified Intermediary (QI), the like-kind property rules. All of that works the same in Washington as it does in Texas or Florida.

What Washington adds to the equation are two significant local complications that out-of-state investors and even experienced local operators frequently overlook: the Real Estate Excise Tax still comes out of your proceeds at closing regardless of the exchange, and the entity structure you used to hold the property can determine whether you owe Washington's capital gains tax when you exit.

How a Standard 1031 Exchange Works in Washington

Section 1031 of the Internal Revenue Code allows investors to sell investment or business-use real property and defer the recognition of federal capital gains and depreciation recapture — provided the proceeds are reinvested into like-kind replacement property under the required timeline and structure.

The basic rules:

1. The property being sold (relinquished property) and the property being purchased (replacement property) must both qualify as investment or business-use real estate
2. You must identify potential replacement properties in writing within 45 days of the relinquished property closing
3. You must complete the acquisition of the replacement property within 180 days of the relinquished property closing
4. A Qualified Intermediary (not you, your attorney, or your agent) must hold the proceeds between the two closings
5. You must not receive ("touch") the proceeds at any point during the exchange

In Washington, the QI must comply with RCW 19.310, which governs escrow and trust arrangements — a provision that adds a layer of state regulatory requirements to QI selection beyond the basic federal framework.

What 1031 defers: Federal capital gains tax (15% or 20% depending on income bracket) plus the 3.8% Net Investment Income Tax (NIIT) for high earners, plus federal depreciation recapture at 25%.

What 1031 does not defer in Washington: The Real Estate Excise Tax (REET). This is the most commonly misunderstood aspect of Washington 1031 exchanges.

REET Still Applies on the Relinquished Property

REET is a transaction tax assessed at the time of recording, not a tax on gain. It applies whenever a deed transfers, regardless of whether the seller intends to reinvest via a 1031 exchange.

On the relinquished property closing in a Washington 1031 exchange, the seller owes REET calculated on the full sale price using the graduated rate structure:

• 1.10% on the first $525,000
• 1.28% on $525,001 to $1,525,000
• 2.75% on $1,525,001 to $3,025,000
• 3.00% above $3,025,000

Plus local REET of approximately 0.50% in most King, Pierce, and Spokane County jurisdictions.

This REET payment reduces the gross proceeds that flow to the Qualified Intermediary for reinvestment. If you're targeting a specific replacement property purchase price, you need to gross up your required sale proceeds to cover the REET before calculating what lands with the QI.

Example: You're selling a $1,200,000 Seattle multifamily property and targeting a $1,200,000 replacement property in Spokane.

REET on the Seattle sale:

• $525,000 × 1.10% = $5,775
• $675,000 × 1.28% = $8,640
• Local REET: $1,200,000 × 0.50% = $6,000
• Total REET: $20,415

The QI receives $1,200,000 minus $20,415 in closing costs attributable to REET — meaning you may need to bring additional cash to the replacement property closing to fund the full $1,200,000 replacement, or accept that you're reinvesting slightly less than the full relinquished property proceeds.

Washington's Capital Gains Tax and the Entity Structure Trap

Washington imposes a 7% excise tax on long-term capital gains above $278,000 annually (2025–2026), with a second tier of 9.9% on gains above $1 million. Direct sales of real estate by deed are explicitly exempt from this tax.

A 1031 exchange involving a direct deed transfer of the relinquished property does not implicate Washington's capital gains tax — the deed transfer exemption covers it. But this changes when the investment is held in an LLC.

Many investors who are structuring exchanges on multifamily or commercial assets hold those assets in single-member or multi-member LLCs. If the exchange structure involves selling an ownership interest in the LLC rather than having the LLC itself deed the property to the buyer, the transaction may be treated as a sale of an intangible asset — specifically, a membership interest — rather than a direct deed transfer.

Washington's Department of Revenue does not apply the real estate exemption to LLC interest sales in the same way it applies to deed transfers. The portion of the gain attributable to the real property is potentially eligible for a deduction, but only to the extent it is directly attributable to the real estate owned by the entity. Enterprise value components beyond the underlying real estate — management contracts, goodwill, operating cash — do not qualify.

The safe path in a 1031 context: Structure the exchange so the LLC itself sells the property by deed to the buyer, and the QI holds the proceeds on the LLC's behalf. The LLC then acquires the replacement property. This maintains the entity structure while ensuring the deed-transfer exemption applies.

The risky path: Selling your ownership interest in the LLC (with the buyer acquiring the entity rather than the underlying property) while hoping to treat the gain as real estate for both the 1031 and the Washington capital gains tax exemption purposes. If the Department of Revenue re-characterizes the gain as an intangible asset sale, you may owe 7% to 9.9% on the gain that the 1031 exchange was supposed to defer.

Reverse Exchanges in Washington

A reverse 1031 exchange — where you acquire the replacement property before selling the relinquished property — requires an Exchange Accommodation Titleholder (EAT) to hold title on one of the properties during the exchange period. Washington recognizes reverse exchanges under the same federal safe harbor (Revenue Procedure 2000-37) as other states.

REET considerations in a reverse exchange are identical to a standard exchange: the REET triggers on the recording of each deed transfer, whether the EAT is acquiring title or releasing it. Timing the two closings within the 180-day window while managing two separate REET payments on both transactions requires precise cash flow modeling.

Build-to-Suit (Construction) Exchanges

Washington investors targeting replacement properties that require renovation can use a build-to-suit exchange (also called an improvement exchange) to apply exchange proceeds toward construction costs on the replacement property. The EAT holds title during the construction period, and improvements completed within 180 days of the relinquished property closing are treated as part of the replacement property's cost for exchange purposes.

This is particularly relevant for investors targeting value-add assets in Spokane or Tacoma — markets where acquiring a below-market property and immediately budgeting renovation costs into the exchange can allow a larger portion of the deferred gain to be reinvested into physical improvements rather than equity.

Timing the Exchange Around Washington's Regulatory Calendar

For investors selling Seattle or Tacoma properties with existing tenants, the 1031 exchange timeline intersects with Washington's tenant protection rules in specific ways:

• If the tenant has a just cause eviction protection and needs to vacate for the sale, the 90-day notice requirement (owner intends to sell a single-family residence) means you need to start the notice process at least three months before your targeted closing date
• Tacoma's 210-day advance notice requirement for rent increases can affect how the property is priced and presented to buyers if rents are below market at the time of sale
• Seattle's winter eviction ban can affect your ability to remove a tenant in preparation for sale between November 1 and April 30

The Washington Investment Property Guide covers complete 1031 exchange workflows for each major submarket, including how to coordinate the tenant notice timeline, QI selection, and REET planning into a single transaction calendar.

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A 1031 exchange in Washington works — but it requires modeling two variables the federal rules don't address: the REET that comes out at the relinquished property closing, and the entity structure that determines whether the capital gains tax exemption applies at all.

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