A 1031 exchange in Colorado lets you sell investment real estate and reinvest in like-kind property while deferring the tax on the gain. The federal rules apply the same way everywhere. Colorado adds two things worth knowing before you close: a flat state tax on the gain, and a nonresident withholding step that catches out-of-state sellers, which matters because so much Colorado property is owned by people who live elsewhere. We act as your qualified intermediary, holding the proceeds and handling the documentation so the exchange holds from sale to closing.
Table of contents
- How much is capital gains tax on real estate in Colorado?
- Colorado's 2% nonresident withholding
- Colorado 1031 exchange rules and timeline
- Why your qualified intermediary matters in Colorado
- 1031 exchanges across Colorado markets
- Selling and reinvesting across state lines
- Common Colorado 1031 exchange mistakes
- Start your Colorado 1031 exchange
- Frequently asked questions
How much is capital gains tax on real estate in Colorado?
Colorado taxes the gain as ordinary income at a flat 4.40%, with no separate capital gains rate and no graduated brackets. That is comparatively low, but it is on top of the federal tax an exchange also defers:
- Long-term capital gains at 0%, 15%, or 20%, with the 20% rate applying above $545,500 of taxable income for single filers and $613,700 for married couples filing jointly in 2026.
- The 3.8% Net Investment Income Tax above $200,000 of modified adjusted gross income for single filers, $250,000 for married couples.
- Depreciation recapture, taxed as unrecaptured Section 1250 gain at up to 25%.
- Colorado's flat 4.40% on the gain.
Colorado conforms to Section 1031, so a properly structured exchange defers both the federal and the Colorado tax. The full federal framework is in our main 1031 exchange guide; this page focuses on Colorado.
Colorado's 2% nonresident withholding
When a nonresident sells Colorado real estate for more than $100,000, the title company withholds the smaller of 2% of the sales price or the net proceeds at closing, reported on Form DR 1083. It is a prepayment against the Colorado tax, not an extra tax, but it pulls cash at the table.
In a 1031 exchange you avoid the withholding by certifying that the transaction is a like-kind exchange in which the gain is not recognized, supported by your intermediary's documentation and coordinated by the title company. If that is not in place, the 2% is withheld and then recovered on your Colorado return, which both ties up capital and can interfere with funding the purchase. Because Colorado has a large base of out-of-state and second-home owners, this step comes up constantly here.
Colorado 1031 exchange rules and timeline
The federal deadlines govern, and they are strict:
- 45-day identification. Identify replacement property in writing within 45 days of the sale.
- 180-day closing. Close within 180 days of the sale, or by your return due date including extensions, whichever is earlier.
- No constructive receipt. Proceeds go to your qualified intermediary, never to you.
- Equal or greater value and debt. Reinvest all net proceeds and match or exceed the relinquished value and debt, or the shortfall is taxable boot.
- Same taxpayer. The entity that sold must be the entity that buys.
Why your qualified intermediary matters in Colorado
A 1031 exchange is only valid if a qualified intermediary holds the proceeds, and the intermediary cannot be a disqualified person such as your agent, attorney, or a relative. In Colorado the intermediary's documentation also supports the DR 1083 certification so the nonresident withholding is not collected unnecessarily. We hold exchange funds in segregated, bonded accounts and work with you directly from your first call through closing.
1031 exchanges across Colorado markets
Denver and its metro carry most of Colorado's exchange volume, in multifamily, industrial, and commercial property, supported by sustained population and job growth. Colorado Springs and Fort Collins add growing multifamily and commercial demand at lower entry prices. The mountain resort markets, including Aspen, Vail, Breckenridge and the rest of Summit and Eagle counties, are a distinct Colorado story: high values, strong appreciation, and heavy reliance on short-term rental income, which is increasingly shaped by county and town licensing rules. If a resort replacement property's returns depend on short-term rental, underwrite the local licensing regime, because a change there can reset the income assumption. Colorado property tax has historically been low, though it has been rising and varies between residential and commercial classifications, so confirm the rate and class for any replacement deal.
Selling and reinvesting across state lines
Colorado is both a destination and an origin for exchange capital. Investors move out of higher-tax states, most often California, into Denver and the resort markets, and Colorado owners exchange within the state or into lower-tax markets elsewhere. The Colorado tax treatment of the gain is the same wherever you reinvest, and the DR 1083 step applies whenever a nonresident sells Colorado property. Our California guide covers that corridor.
Common Colorado 1031 exchange mistakes
- Not certifying the exchange on DR 1083, so the 2% nonresident withholding is collected and tied up.
- Underwriting a resort replacement property on short-term rental income without checking local licensing rules.
- Taking receipt of the proceeds, even briefly, which disqualifies the exchange.
- Missing the 45-day identification window, or trading down into taxable boot.
Start your Colorado 1031 exchange
Set up your exchange before your relinquished property closes, so the DR 1083 certification is in place and the proceeds never reach your hands. Contact our team to begin, or to talk through a specific deal.
Frequently asked questions
How much is capital gains tax on real estate in Colorado?
Colorado taxes the gain as ordinary income at a flat 4.40%, on top of federal capital gains tax.
Is there nonresident withholding when I sell Colorado property?
Yes. For nonresident sales over $100,000, the title company withholds the lesser of 2% of the sales price or the net proceeds on Form DR 1083. In a 1031 you certify no recognized gain to avoid it.
Does Colorado conform to federal 1031 rules?
Yes. A properly structured exchange defers both the federal and the Colorado tax.
Do I need a qualified intermediary for a Colorado 1031 exchange?
Yes. The intermediary must hold the proceeds and facilitate the exchange, and supports the DR 1083 certification. Engage one before the relinquished property closes.
Can I 1031 a Colorado mountain resort property?
Yes, if it is held for investment or business use. Because resort returns often depend on short-term rental, confirm the local licensing rules for any replacement property before you commit.
This page is general information, not tax or legal advice. We act as a qualified intermediary and do not provide tax or legal advice. State and federal rules and thresholds change; confirm current figures with your tax advisor.
