1031 Exchange in Colorado

By Skyline Capital Investments · Updated October 26, 2026 · 7 min read

Does Colorado recognize 1031 exchanges?

Yes. Colorado starts its income tax from federal taxable income, so a gain you defer under Section 1031 of the Internal Revenue Code is deferred for Colorado too. There is no separate state form to elect the exchange, and no state adjustment that adds the gain back.

With a flat 4.4% rate, the Colorado share of a large apartment gain is meaningful. On a $1,000,000 gain, the state tax alone is $44,000, so an exchange that works federally saves real money at the state level as well.

Federal 1031 rules that apply in Colorado

Colorado adds no deadlines of its own, so the federal timeline controls every exchange. You have 45 days from the sale to identify replacement property in writing, and 180 days, or your return due date if that comes first, to close on it. Both properties must be real property held for investment or business use, and a qualified intermediary must hold the sale proceeds so you never touch them.

To defer all of the gain, buy a replacement of equal or greater value and reinvest all of the net cash. Cash you keep and debt you shed without replacing it are boot, taxed by the IRS and by Colorado. Our guide to 1031 exchange rules covers identification tests and boot in detail, and the main 1031 exchange guide walks through the whole process.

Is there a Colorado 1031 clawback?

No. Colorado does not track gain that leaves the state in an exchange. If you sell a Denver building and buy in Texas or Florida, you file nothing extra with Colorado in later years, and Colorado does not keep a claim on the deferred gain the way California, Massachusetts, Montana and Oregon do.

That makes Colorado an easy state to exchange out of. The deferred gain follows you to the replacement property, and when you eventually sell that property in a taxable sale, the state where it sits and the state where you live decide who taxes the gain.

Colorado withholding at closing and how an exchange affects it

On a sale over $100,000 by a nonresident individual, estate, trust or unqualified foreign corporation, the closing agent withholds the lesser of 2% of the sales price or the net proceeds otherwise due to the seller, and sends it to the Department of Revenue with Form DR 1079 within 30 days. Colorado residents, corporations with a permanent place of business in Colorado and partnerships under IRC section 761(a) can sign an affirmation to avoid it.

Form DR 1083 does not mention 1031 exchanges. What it offers instead is an Affirmation of No Reasonably Estimated Tax to be Due. The same form says nonresidents are taxed on Colorado real estate gains to the extent the gains are included in federal taxable income. A nonresident whose gain is fully deferred has no Colorado gain in federal taxable income for the year, so the no-tax-due affirmation can fit.

If you take cash out of the exchange, the picture changes. Some Colorado tax will be due on the boot, so the no-tax affirmation no longer fits, and withholding applies at the lesser of 2% of the price or the net proceeds paid to you. Ask your closing agent early how they treat proceeds sent to the intermediary, because the answer sets the withholding.

• Tell the title company at the start that the sale is part of an exchange, and give them the intermediary’s details.
• If you are a nonresident doing a full exchange, ask for the no-tax-due affirmation on DR 1083 before closing.
• Any amount withheld is a credit on your Colorado nonresident return, and any excess is refunded.

Does Colorado regulate qualified intermediaries?

Yes. Colorado is one of nine states with a law regulating exchange facilitators, along with California, Connecticut, Idaho, Maine, Nevada, Oregon, Virginia and Washington. The rules are in C.R.S. 6-1-721, added by House Bill 09-1254 and approved April 16, 2009, and a violation is a deceptive trade practice under the Colorado Consumer Protection Act.

The law focuses on keeping your money safe between the sale and the purchase.

• Financial assurance at all times: a fidelity bond of at least $1 million plus at least $250,000 of errors and omissions coverage, or an equal deposit of cash or letters of credit, or all exchange funds held in a qualified escrow or trust that needs both your and the facilitator’s written authorization to withdraw.
• Exchange funds over $250,000 must be held so that withdrawals need both your authorization and the facilitator’s.
• Written notice to you of how your funds will be invested or deposited, and investments that meet a prudent investor standard focused on liquidity and preserving principal.
• No commingling with the facilitator’s operating money and no loans of exchange funds to affiliates.
• Notice to current clients within two business days of a change in control, also posted on the facilitator’s website for 90 days.
• Exchange funds are not subject to execution or attachment on claims against the facilitator.

Choosing an intermediary for a Colorado exchange

Ask which of the three financial assurance options the intermediary uses, and get it in writing before you sign the exchange agreement. If it is a bond, ask for the insurer and the amount. If it is a qualified escrow or trust, ask who must sign to move money and whether you will get statements.

The intermediary cannot be your agent from the past two years, such as your attorney, accountant, employee or real estate broker. Our guide to choosing a 1031 qualified intermediary covers fees, contract terms and the questions to ask.

Common 1031 exchange paths for Colorado owners

Most Colorado exchanges follow one of three paths.

Colorado to Colorado is common along the Front Range: an owner trades a set of older Denver fourplexes for a larger building in Colorado Springs, Greeley or Fort Collins. The gain stays in a Colorado property and Colorado taxes it when that property is sold in a taxable sale.

Colorado to another state is the path for owners who want lower property taxes, a different rent market or a move to Arizona, Texas or Tennessee. Colorado has no clawback, so the only Colorado paperwork is the closing itself, plus the withholding question if you live outside the state.

Another state into Colorado brings the investor under Colorado rules for the future: a nonresident who later sells the Colorado building owes 4.4% on the gain and faces the 2% withholding at closing. A seller coming from a clawback state such as California may still owe filings there.

Worked example: a nonresident exchanges a Denver building

An owner who lives in Arizona sells a 20-unit building in Denver for $2,000,000. With $120,000 of selling costs and an adjusted basis of $800,000, the gain is $1,080,000. The $700,000 loan is paid off at closing, leaving $1,180,000. The owner takes $80,000 in cash and the intermediary receives $1,100,000.

The owner buys a $2,200,000 building in Colorado Springs with the $1,100,000 of exchange funds and a new $1,100,000 loan. The $80,000 taken at closing is boot, so $80,000 of gain is recognized and $1,000,000 is deferred. At 4.4%, the Colorado tax on the boot is $3,520 and the Colorado tax deferred is $44,000.

Because some Colorado tax is due, the no-tax-due affirmation does not fit. If the closing agent counts only the $80,000 paid to the seller as net proceeds, withholding is the lesser of $40,000 (2% of $2,000,000) and $80,000, so $40,000 is withheld. The owner files a Colorado nonresident return, owes $3,520 and gets about $36,480 back. Had the owner sent all $1,180,000 to the intermediary, the full gain would be deferred and the owner could sign the affirmation instead.

Timeline tips for a Colorado exchange

Plan the replacement before the sale closes. The 45-day clock starts at closing, and finding the right larger building can take most of that window.

• Sign the exchange agreement and assign the sale contract before closing, not at the table.
• Confirm the intermediary’s Colorado financial assurance when you sign.
• If you live out of state, settle the DR 1083 affirmation with the title company a week before closing.
• If you sell late in the year, extend your return so the due date does not cut the 180 days short.
• Keep the closing statements from both sides with your tax records; they prove the boot figure on both returns.

Selling a Colorado apartment building as part of an exchange

Skyline buys apartment buildings with five or more units in Colorado. We buy directly, close on your timeline, and can work inside 1031 deadlines. We work with your intermediary on the contract assignment and can set a closing date that gives you time to line up a replacement before your 45 days start.

For the tax you would owe without an exchange, see Colorado capital gains tax on real estate. The 1031 exchange calculator runs the federal side for your own numbers.