1031 Exchange in Washington State: Rules, Deadlines, and How to Do It (2026)

A 1031 exchange is the single most powerful tax tool a rental owner in Washington has, and it is also the one with the least forgiving paperwork. The federal rules are the same in Vancouver as in Dallas. What is different here is what the state does and does not tax, how Washington regulates the intermediary who holds your money, and the fact that a large share of the investors exchanging into Clark County are coming from across the river, where Oregon has its own rules about deferred gain.

This guide covers all of it in the order you will actually need it: how the deferral works, what Washington charges anyway, the deadlines and identification rules, how to vet a qualified intermediary, the traps in boot and related-party deals, and the Oregon and Seattle angles that most national guides skip. Nothing here is tax advice; your CPA and a qualified intermediary should sign off on the specifics before you close.

What a 1031 Exchange Actually Defers

Section 1031 of the Internal Revenue Code lets you sell real property held for investment or business use and reinvest in other like-kind real property without recognizing the gain in the year of sale. The gain is not forgiven. It rolls into the replacement property's basis and comes due when you eventually sell without exchanging, unless you hold until death, when heirs currently receive a stepped-up basis and the deferred gain disappears. That "swap until you drop" outcome is why the exchange sits at the center of so many long-term rental portfolio plans.

On a typical appreciated Clark County rental, the federal bill you are deferring has three layers: long-term capital gains tax at 15 or 20 percent depending on income, the 3.8 percent net investment income tax for higher earners, and depreciation recapture, taxed at up to 25 percent on every dollar of depreciation you have claimed. On a house bought a decade ago, recapture alone is often a five-figure number, which is why the exchange makes sense even for owners whose appreciation has been modest.

What Washington Taxes Anyway

Investors from other states expect a second, state-level gain to defer. In Washington there is not one. The state has no personal income tax, and its capital gains excise tax, enacted in 2021 and upheld by the state supreme court in 2023, applies to sales of stocks, bonds, and similar assets above an annual deduction and expressly exempts real estate. Our guide to capital gains tax on selling a Washington rental covers that carve-out in detail.

What Washington does charge is the real estate excise tax. REET is a tax on the transfer, not the gain, and the seller pays it at closing on a graduated state rate that starts at 1.10 percent of the first $525,000 and rises on higher-value sales, plus a local rate (0.50 percent in most of Clark County). A 1031 exchange does not touch it. On a $600,000 relinquished property, budget roughly $9,700 in state and local REET as a hard cost of the exchange, and remember that it comes out of the proceeds your intermediary receives, which slightly reduces the equity you have to reinvest.

The Requirements

• Investment or business use on both ends. The property you sell (the relinquished property) and the one you buy (the replacement) must be held for investment or for productive use in a trade or business. A primary residence, a second home used personally, and property held mainly for resale (a flip) do not qualify.
• Real property only. Since the 2017 tax law, only real property qualifies. Equipment, vehicles, and other personal property are out.
• Like-kind. For real estate the standard is broad: any U.S. real property held for investment is like-kind to any other, improved or unimproved. A single-family rental for a fourplex, a duplex for a small commercial building, or an out-of-area condo for a house in Vancouver all qualify. Foreign real property is not like-kind to U.S. real property.
• A qualified intermediary holds the money. If sale proceeds touch your account, even for a day, the exchange fails. The intermediary must be engaged before the relinquished property closes.
• Equal or greater value, all equity reinvested, debt replaced. Anything less creates taxable boot, covered below.
• The deadlines. Forty-five days to identify, 180 to close, with no routine extensions.

The 45-Day and 180-Day Rules, and the Three Ways to Identify

Both clocks start on the day your relinquished property's sale closes and they run concurrently. Within 45 calendar days you must identify replacement property in a signed writing delivered to your qualified intermediary. Within 180 calendar days, or by the due date of your federal return for the year of sale including extensions, whichever comes first, you must actually receive the replacement property. The second limit catches late-year sellers: close in November and your 180 days may run past April 15, so file an extension or the return deadline cuts your window short.

Weekends and holidays count. The IRS grants no discretionary extensions; the only relief is for federally declared disasters under the IRS's standing disaster procedures, which have extended deadlines for affected Washington counties in wildfire years.

The identification itself has to satisfy one of three tests in the Treasury regulations:

• Three-property rule: identify up to three properties, regardless of their value. This is what most single-property investors use, naming one target and two backups.
• 200 percent rule: identify any number of properties as long as their combined fair market value does not exceed 200 percent of the value of what you sold.
• 95 percent rule: if you exceed both limits above, the exchange survives only if you actually acquire at least 95 percent of the value of everything you identified. Treat this as a fallback, not a plan.

Identify by street address or legal description. "A duplex in east Vancouver" is not an identification. And because 45 days is short, serious exchangers line up candidates before the sale closes; a quick rental valuation on each candidate keeps you comparing real cash flow rather than list prices.

Step by Step: Doing the Exchange in Washington

1. Hire a qualified intermediary before you sign a listing agreement

The intermediary (QI, also called an accommodator or exchange facilitator) prepares the exchange agreement, receives the proceeds at closing, holds them, and wires them to the replacement closing. Federal law says who cannot serve as your QI (your agent, attorney, accountant, or employee from the past two years, or a related party) but does not license the people who can. Washington fills that gap. Under the Exchange Facilitator Act, chapter 19.310 RCW, a facilitator doing business here must either maintain a fidelity bond of at least $1 million or deposit every client's exchange funds in a qualified escrow or qualified trust that requires both the facilitator's and the client's authorization to withdraw, with the funds in a separately identified account under your taxpayer ID and independent statements from the bank. Ask which structure your QI uses and ask for the documentation. A QI who cannot answer that question quickly is the wrong QI.

2. Sell the relinquished property with exchange language in the contract

Your purchase and sale agreement should include a cooperation clause stating that the seller intends to complete a 1031 exchange and assigning the seller's rights under the contract to the QI. Clark County escrow companies handle this routinely; the proceeds go from escrow to the QI, never to you.

3. Identify within 45 days

Deliver the signed identification to your QI before midnight on day 45, using one of the three rules above. Keep a dated copy.

4. Close on the replacement within 180 days

The QI wires the funds to the replacement escrow. If you need new financing, start it the week you list, not the week you identify; a 180-day window is generous for cash and tight for a loan that hits underwriting problems. Investors weighing a new mortgage against tapping equity elsewhere should read our comparison of a HELOC and a cash-out refinance, and anyone financing the replacement should know how lenders will look at the debt service coverage ratio on the new property.

5. Report on Form 8824

The exchange is reported on IRS Form 8824 with your return for the year the relinquished property closed. Your CPA calculates the carryover basis. Keep the exchange agreement, identification notice, and both closing statements permanently.

Boot: How a "Tax-Free" Exchange Produces a Tax Bill

Boot is anything you receive in the exchange that is not like-kind real property, and it is taxable in the year of sale up to the amount of your gain. It shows up three ways:

• Cash boot: proceeds you keep, or proceeds the QI releases to you at the end of the exchange because you bought down in price.
• Mortgage boot: if the replacement property carries less debt than the relinquished property, the debt relief is treated as money received unless you offset it with new cash. Selling a $600,000 rental with a $300,000 loan and buying a $650,000 replacement with a $200,000 loan and $450,000 down leaves no boot; buying it with a $250,000 loan and $400,000 down while pocketing $50,000 does.
• Proceeds spent on non-exchange costs: using exchange funds to pay off unrelated debts or costs that are not transactional expenses of the sale or purchase.

A partial exchange is legal and sometimes sensible: take some cash off the table, pay tax on that slice, defer the rest. Just decide it on purpose. Most boot we see is accidental, usually a replacement loan that came in smaller than the one paid off.

Variations Worth Knowing

Reverse exchange

If the perfect replacement comes up before your current property sells, an exchange accommodation titleholder can "park" the replacement under the IRS safe harbor in Revenue Procedure 2000-37 while you sell. The same 45- and 180-day limits apply, measured from the day the parked property is acquired, and the parking structure adds cost and complexity. It works; it is not a casual option.

Delaware statutory trusts

A beneficial interest in a properly structured Delaware statutory trust that holds real estate is treated as real property for 1031 purposes under Revenue Ruling 2004-86. DSTs let an exchanger move from active landlording into a fractional, passive interest in institutional property. They are also illiquid, sponsor-dependent, and layered with fees, so they belong in a conversation with a fiduciary advisor rather than in a 45-day scramble.

Vacation and mixed-use property

A second home can qualify only under the IRS safe harbor in Revenue Procedure 2008-16: in each of the two years before the sale (and after the purchase, for the replacement), the property must be rented at fair market rent for at least 14 days and your personal use must not exceed the greater of 14 days or 10 percent of the rental days. Fall outside that and you are arguing facts and circumstances with the IRS.

Related parties

Exchanging with a family member or an entity you control triggers Section 1031(f): if either side disposes of the property received within two years, the deferred gain is recognized. Buying your replacement from a related party through a QI is scrutinized even more closely. Get specific advice before either.

Crossing State Lines: Oregon Investors and Washington Sellers

A large share of the exchanges we see landing in Clark County start in Oregon. A Portland duplex sold and exchanged into a Vancouver rental works perfectly at the federal level, and the owner also gets out from under Oregon's income tax on the rental income going forward. What does not go away is Oregon's claim on the gain that was deferred. When Oregon property is exchanged for property outside Oregon, the owner must file Oregon Form OR-24 with their Oregon return for the year of the exchange and every year after until the replacement property is sold, at which point Oregon taxes the deferred Oregon-source gain. California has a parallel annual filing (Form FTB 3840). Skipping the annual form is how a clean exchange turns into a state audit years later.

Going the other direction, a Washington seller exchanging into Oregon, California, or another income-tax state should expect that state to tax the full gain when the replacement is eventually sold, including the portion that accrued in Washington. There is no Washington tax to defer, so the deferral is purely federal, but the replacement state's rules apply to the exit. Our comparison of Oregon and Washington landlord laws covers the operating differences an investor takes on with an Oregon property.

Exchanging Out of Seattle and Into Clark County

The other steady stream of exchanges into Vancouver comes down I-5 from King County. Owners selling a Seattle rental cite the same reasons in most conversations: prices that make a Seattle house's cash flow thin relative to its equity, and a local regulatory layer (first-in-time screening rules, seasonal eviction limits, local fee caps, and registration requirements) that Clark County does not have on top of state law. Exchanging a single Seattle house into two or three Clark County rentals at similar total value is a common structure. The like-kind test is satisfied, the three-property rule accommodates it, and the state-level analysis is identical since both are in Washington. What changes is the management picture: three doors 170 miles from home is a different job than one door across town, which is where a local manager stops being optional. Our guides to managing a Vancouver rental from a distance and why investors choose Vancouver, WA cover that side.

Finding Replacement Property in Washington

"1031 exchange properties for sale" is one of the most searched phrases around this topic, and it is the wrong way to shop. Any investment property is a 1031 property; the question is whether it performs. Underwrite candidates the way you would without the exchange: current and achievable rent, realistic operating expenses, the cap rate and cash-on-cash return, the gross rent multiplier against local norms, and the loan-to-value ratio your lender will accept. The deadline pressure of a 1031 pushes people into overpaying for a property that "closes on time." A replacement that loses money for five years costs more than the tax you deferred. Line up candidates before you sell, get a projected rent on each, and have a manager ready so day one of ownership is leasing rather than scrambling.

Mistakes That Void the Exchange

• Touching the money. Proceeds deposited to your account, even briefly, end the exchange.
• Hiring the QI after closing, or hiring a disqualified person such as your own attorney or agent.
• A vague or late identification. Day 46 is too late, and "something in Camas" is not an identification.
• Missing the return due date on a late-year sale because no extension was filed.
• Accidental boot from a smaller replacement loan or a lower purchase price.
• Exchanging a residence or a flip. Neither is held for investment.
• Forgetting the annual state filing when the relinquished property was in Oregon or California.

How the Exchange Fits a Vancouver, WA Portfolio

For Clark County investors the 1031 is less a tax trick than the mechanism for compounding. Sell the older single-family rental that has appreciated, defer the tax, and redeploy the full equity into more doors or a better property, then repeat. Because Washington adds no state gain and Clark County adds no local rent rules beyond the state's HB 1217 rent cap, the local math is cleaner than in most West Coast markets. The strategy only pays if the replacement actually performs, and that comes down to the underwriting and the operations after closing.

Frequently Asked Questions

Is there a Washington State tax on a 1031 exchange?

Not on the gain. Washington has no personal income tax, and its capital gains excise tax expressly excludes real estate, so a 1031 exchange in Washington defers federal tax only: federal capital gains tax and depreciation recapture. Washington's real estate excise tax (REET) is different. It is a tax on the sale itself, the seller pays it at closing on a graduated rate starting at 1.10 percent, and a 1031 exchange does not defer it.

What are the 45-day and 180-day 1031 exchange deadlines?

Both clocks start the day your relinquished property closes and run at the same time. You must identify replacement property in a signed writing delivered to your qualified intermediary within 45 calendar days, and you must receive the replacement property within 180 calendar days or by the due date of your tax return for that year including extensions, whichever comes first. Weekends and holidays count, and the only extensions are IRS disaster relief.

How many replacement properties can I identify in a 1031 exchange?

Under the Treasury regulations you may identify up to three properties of any value (the three-property rule), or any number of properties as long as their combined fair market value does not exceed 200 percent of what you sold (the 200 percent rule). If you exceed both limits, the exchange still works only if you actually acquire at least 95 percent of the value of everything you identified. Most single-property investors use the three-property rule and name backups.

How do I choose a qualified intermediary in Washington State?

Federal law does not license qualified intermediaries, but Washington regulates them under the Exchange Facilitator Act, chapter 19.310 RCW. A facilitator must maintain a fidelity bond of at least $1 million or hold every client's exchange funds in a qualified escrow or qualified trust that requires both the facilitator's and the client's authorization to withdraw, with independent statements from the bank. Ask for proof of the bond or the escrow structure, confirm your funds will sit in a separately identified account under your taxpayer ID, and never use a related party such as your own attorney, CPA, or agent from the past two years.

Can I do a 1031 exchange from Oregon into Washington?

Yes, and many Portland investors do exactly that into Clark County. Federal deferral works across state lines. The catch is Oregon's own rule: when you exchange Oregon property for property outside Oregon, you must file Form OR-24 with your Oregon return for the year of the exchange and every year afterward until you dispose of the replacement property, at which point Oregon taxes the deferred Oregon-source gain. Washington has no matching rule going the other direction because it has no income tax.

What is boot in a 1031 exchange?

Boot is anything you receive in the exchange that is not like-kind real property: cash you keep, sale proceeds used to pay non-transaction costs, or debt relief when the replacement property carries less mortgage than the one you sold and you do not make up the difference with new cash. Boot is taxable in the year of sale up to the amount of your gain. A partial exchange is allowed; you simply pay tax on the boot and defer the rest.

This article is general information for Washington rental owners, not tax or legal advice. Federal rules are drawn from IRC Section 1031, Treasury Regulation 1.1031(k)-1, and the IRS Form 8824 instructions; state rules from RCW 19.310, the Washington Department of Revenue, and the Oregon Department of Revenue, as of September 2026. Confirm every step with your CPA and a qualified intermediary before you close.

Written by Avenir Gedarevich, Washington State Designated Broker (WA Managing Broker License #24033559) at VPMG Property Management in Vancouver, WA.