Washington REET Calculator: How Real Estate Excise Tax Hits Investment Property Sellers

Most investors researching Washington real estate find references to a 1.1% REET rate and move on. That number hasn't applied to a meaningful percentage of investment property transactions in years. The current REET structure is graduated — five tiers — and the difference between the lowest rate and the highest rate on a $3.5 million commercial sale is substantial enough to materially alter your net proceeds projections.

REET in Washington is primarily a seller expense. It is not a closing cost that buyers need to budget for in standard arm's-length transactions, but sellers absolutely do. Getting the number right before you list is not optional if you're working backward from a targeted net proceeds figure.

Washington's Graduated REET Rate Structure (2025–2026)

The state-level REET applies to virtually every real property transfer — residential, commercial, agricultural, and mixed-use. The rate is applied to the full selling price, which includes any assumed debt, not just the equity proceeds.

These tiers are applied in sequence — not as a single rate on the whole amount. Every sale in Washington starts at 1.10% on the first $525,000, then steps up.

On top of the state rate, local REET applies in most jurisdictions. Cities and counties levy Local REET 1 (up to 0.25%) and Local REET 2 (up to 0.25%) for a combined local addition typically totaling 0.50%. In King County municipalities including Seattle and Bellevue, local REET adds the full 0.50%, bringing the combined marginal rate on amounts above $3,025,000 to 3.50%.

REET Calculator: Worked Examples for Washington Investors

Example 1: $750,000 single-family rental in Tacoma (Pierce County)

Example 2: $2,000,000 multifamily building in Seattle

That's 2.08% effective rate on a $2M sale — nearly double what an investor who modeled a flat 1.1% REET would have expected.

Example 3: $3,500,000 apartment complex in King County

At a 2.62% blended rate, the REET alone on this transaction consumes roughly 18 months of net operating income at a 5% cap rate.

REET and the 1031 Exchange: What Doesn't Transfer

A 1031 exchange successfully defers federal capital gains taxes and depreciation recapture on a qualifying sale-and-reinvestment. But it does not defer REET.

Washington's REET is assessed at the time the deed records — regardless of whether the transaction is structured as a 1031 exchange. The seller must pay REET at closing on the relinquished property. That REET payment reduces the net proceeds available to roll into the replacement property, which investors must account for when calculating the equity they can deploy into the exchange.

The practical implication: a seller targeting a specific replacement property purchase price must back-calculate from the REET obligation to determine how much they need in gross sale proceeds to fund the exchange without triggering additional capital gain on boot.

REET on LLC Interest Transfers

Washington imposes REET not only on direct deed transfers but also on certain transfers of controlling interests in entities that hold real property. Under RCW 82.45.196, if a single transaction or a series of transactions within a 12-month period results in a change of ownership of 50% or more of a legal entity that holds Washington real property, the transaction is treated as a taxable REET transfer — as if the underlying property itself was conveyed.

This matters for:

• Investor syndicates selling a majority ownership stake in a real estate holding company
• Portfolio acquisitions structured as entity purchases
• Partnership restructurings following a death or buyout that crosses the 50% threshold

The REET calculation in these cases is based on the fair market value of the Washington real property held by the entity, not the enterprise value or the price paid for the ownership interest. Getting a current independent appraisal of the property before a controlling interest transfer is essential to calculate the REET accurately.

Who Does Not Pay REET

Several exemptions apply under RCW 82.45.010 and RCW 82.45.010(6):

• Gifts of real property (no consideration exchanged)
• Transfers resulting from court decrees in dissolution proceedings
• Deeds given to secure a debt (trust deed or mortgage, not a sale)
• Transfers between spouses or domestic partners as part of a dissolution
• Certain transfers to nonprofit organizations meeting qualifying criteria
• Transfers resulting from inheritance or estate administration

For investors, the most relevant exemption is the inheritance transfer — inheriting a property does not trigger REET, though the estate may face its own tax considerations at the federal level.

REET as an Exit Cost Driver: How It Shapes Hold Strategy

The progressive REET structure has a specific and predictable effect on optimal hold strategy in Washington. Short-term flipping of high-value commercial assets is heavily penalized by REET math: a $3 million flip that generates $300,000 in gross profit before REET is hit with $91,575 in combined REET (at the King County rates above) — 30% of the profit consumed before income taxes on the gain.

This is why Washington's institutional multifamily market tends toward longer holds. The transaction cost of exit at high price points is severe enough that it needs years of NOI and appreciation to clear the hurdle. Investors who expect to buy, reposition, and sell within 24–36 months must model REET as a direct deduction from projected returns, not a rounding error.

The Washington Investment Property Guide includes detailed REET scenarios for each major submarket — Seattle, Tacoma, Spokane, and Kitsap — along with guidance on how REET interacts with 1031 exchange timing and LLC interest transfer rules.

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Getting REET right before you list is one of the cleaner calculations in investment real estate — but only if you use the actual graduated rate, not the number people casually repeat.

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