A 1031 exchange lets you sell an investment property and roll the proceeds into another without paying federal capital gains tax at the time of sale. For a Washington investor sitting on years of appreciation, that deferral can be the difference between trading up and handing a large check to the IRS. The rules are strict and the deadlines are unforgiving, so this guide walks through how the exchange works, where Washington law changes the math, and the mistakes that disqualify people every year.
What a 1031 Exchange Actually Does
Named for Section 1031 of the Internal Revenue Code, the exchange defers the federal tax you would otherwise owe on your gain, including depreciation recapture, as long as you reinvest in another qualifying property. It is a deferral, not forgiveness. The tax basis carries forward into the new property, and the bill comes due if you eventually sell without exchanging again. Many investors defer repeatedly for decades, and under current law the deferred gain can be eliminated entirely when the property passes to heirs at a stepped-up basis.
The core requirement is that both the property you sell and the property you buy are held for investment or productive use in a business. Your primary residence does not qualify, and neither does property you hold mainly to flip and resell.
The Two Deadlines That Decide Everything
The exchange runs on two clocks that start the day you close on the sale of your relinquished property:
- 45 days to identify. You must identify your potential replacement property or properties in a signed written notice delivered to your qualified intermediary within 45 calendar days.
- 180 days to close. You must complete the purchase of the replacement property within 180 calendar days of the sale, or by your tax return due date including extensions, whichever comes first.
These are calendar days, including weekends and holidays, with no extensions for a missed deadline short of a federally declared disaster. Miss either one and the entire exchange collapses into a taxable sale. Line up your replacement targets before you list, not after you close.
What Counts as Like-Kind
The term "like-kind" is broader than most people expect. Any real property held for investment is like-kind to any other real property held for investment. You can exchange a rental house for a small apartment building, raw land for a retail unit, or a Kent duplex for a Tacoma fourplex. Since 2018, only real property qualifies; personal property and equipment no longer do. Property outside the United States is not like-kind to property inside it.
The Qualified Intermediary Requirement
You cannot touch the sale proceeds. If the money passes through your hands or your own bank account, the IRS treats it as a taxable sale, full stop. A qualified intermediary, sometimes called an accommodator, holds the funds between the sale and the purchase and handles the exchange paperwork. Choose one before you close on the sale, because the intermediary has to be in place from the start. Vet them carefully, since they will hold your proceeds, and confirm how those funds are secured.
The Identification Rules Investors Miss
Within that 45-day window, your written identification has to follow one of two common rules:
- Three-property rule. You may identify up to three properties regardless of their value, and buy one, two, or all three.
- 200 percent rule. You may identify any number of properties as long as their combined value does not exceed 200 percent of the property you sold.
Identifications must be specific and in writing. A vague description will not hold up, and you cannot quietly swap in a different property on day 60.
The Washington Angle: What You Are and Are Not Deferring
Washington changes the calculation in a way that surprises investors moving from other states. The state has no personal income tax, and Washington's capital gains excise tax specifically exempts real estate. That means when you sell investment property here, there is no state capital gains tax to worry about in the first place. The tax a 1031 exchange defers for a Washington investor is federal: your federal capital gains and depreciation recapture.
One thing the exchange does not defer is the Washington real estate excise tax, or REET. REET is a transfer tax due when the property changes hands, and it applies to the sale on the state's graduated schedule, roughly 1.1 percent on the first $525,000 of price, rising through 1.28 and 2.75 percent to 3 percent above about $3 million, plus a local component that commonly adds 0.25 to 0.5 percent. That cost is customarily paid by the seller and is separate from the income tax your exchange defers. Build it into your numbers.
Common Pitfalls That Blow Up Exchanges
- Touching the money. Any actual or constructive receipt of the proceeds ends the exchange. Let the intermediary hold everything.
- Missing the 45-day mark. Investors who start hunting after closing routinely run out of time in a low-inventory market like ours.
- Buying down. If your replacement property costs less than what you sold, or you pull cash out, the difference, called boot, is taxable.
- Wrong ownership or use. The taxpayer who sold must be the one who buys, and the property has to be genuinely held for investment, not a residence in disguise.
Is a 1031 Exchange Right for You
An exchange makes sense when you have meaningful gain, you intend to stay invested in real estate, and you have a realistic path to identifying a replacement inside 45 days. It makes less sense if you actually need the cash, if your gain is small, or if you cannot find a suitable property in a tight market and would be forced into a weak purchase just to beat the clock. Because the stakes and the rules are unforgiving, coordinate your agent, a qualified intermediary, and a tax professional before you list, not after.
At Nations Realty, we help investors plan exchanges from the sell side and the buy side, line up replacement properties before the clock starts, and work alongside your intermediary and tax advisor so the timeline holds. Reach out before you list, and we will map the whole exchange with you.