What is a 1031 exchange?
A 1031 exchange — named for Section 1031 of the Internal Revenue Code — lets a real estate investor sell one investment property and roll the proceeds into another “like-kind” investment property without paying federal capital gains tax in the year of the sale. The tax is not erased. It is deferred until the replacement property is eventually sold in a fully taxable transaction.
The mechanics matter. The investor does not personally receive the sale proceeds. A neutral third party called a qualified intermediary (QI) holds the funds and delivers them to the closing on the replacement property. If the investor touches the cash, even briefly, the exchange is dead and the entire gain is taxable.
Why Colorado investors use them
Colorado real estate has appreciated meaningfully over the past decade. Front Range investors who bought rentals in the mid-2010s are sitting on six-figure gains that would generate a substantial federal and state tax bill if cashed out. 1031 lets that equity keep working.
Typical scenarios we see along the Front Range:
- Upsizing. Trading a single-family rental for a small multifamily building. Same dollars working harder.
- Geographic shift. Selling a Denver property where cash flow has gotten tight and rolling into a cheaper Colorado Springs or Greeley rental with better cash-on-cash returns.
- Consolidation. Trading several smaller properties into one larger asset to cut management overhead.
- Diversification. Trading a single high-value rental into multiple smaller properties to spread risk.
The 45-day and 180-day deadlines
1031 has two hard deadlines from the date the relinquished property closes:
- 45 days to identify replacement property in writing, delivered to the qualified intermediary.
- 180 days to close on the replacement property.
Both clocks start the day after closing on the property you sold. They run concurrently, not consecutively. Miss either deadline and the exchange fails — the proceeds become taxable as a regular sale.
Identification rules
You can identify replacement candidates under one of three rules:
| Rule | How it works |
|---|---|
| Three-property rule | Identify up to 3 properties of any value. |
| 200% rule | Identify any number of properties as long as their combined fair market value does not exceed 200% of the relinquished property’s sale price. |
| 95% rule | Identify any number of properties of any value, but you must actually acquire at least 95% of the total identified value. |
Most investors stick with the three-property rule because it is simple and gives flexibility. The identification must be in writing, signed, and delivered to the QI by midnight on day 45.
Like-kind property rules
“Like-kind” sounds restrictive but is interpreted broadly for real estate. Any investment or business-use real property in the United States is generally like-kind to any other investment or business-use real property in the United States.
That means a Denver single-family rental can be exchanged for:
- A small multifamily building in Aurora.
- Raw land in Weld County held for investment.
- A commercial warehouse in Colorado Springs.
- A short-term rental in Steamboat (with caveats — see below).
- A fractional interest in a Delaware Statutory Trust (DST).
What does not qualify: your primary residence, a second home used only personally, inventory held by a flipper, and partnership interests. Personal property (vehicles, machinery, art) was excluded from 1031 entirely by the 2017 Tax Cuts and Jobs Act — only real property qualifies now.
Qualified intermediaries (QIs)
The QI is the structural backbone of every exchange. They prepare the exchange documents, hold the sale proceeds in a segregated account, and disburse funds to the title company at the replacement closing.
Typical fees for a standard delayed exchange on a Colorado residential investment property run roughly $800–$1,500. Reverse exchanges and build-to-suit exchanges cost more — often $5,000+ — because the structure is more complex.
Pick the QI before you list
Identify and engage your QI before the relinquished property is under contract. The QI needs to be in the chain of documents at closing — if proceeds get wired to the seller first, the exchange is broken. Colorado has multiple reputable QIs; ask your CPA or title officer for a referral.
Common 1031 mistakes
Touching the money
The single most common way exchanges die. Even if the funds sit in the seller’s account for one day before being wired to the QI, the IRS treats it as constructive receipt and the exchange fails. The proceeds must go from the title company directly to the QI at closing — never through the seller.
Missing the 45-day identification
The 45-day clock is unforgiving. Identification must be in writing, sufficiently specific (street address or legal description), signed, and delivered to the QI before midnight on day 45. No extensions. No grace period.
Boot
If the replacement property costs less than the relinquished property, or you pull cash out at closing, the difference is “boot” and is taxable. To fully defer, the replacement must be of equal or greater value and all of the equity must be reinvested. Cash boot, mortgage relief boot, and non-like-kind property received all trigger gain recognition.
Related-party rules
Buying replacement property from a related party (family member, controlled entity) triggers a two-year holding requirement on the related party’s side, with limited exceptions. The same applies if a related party is the seller in a forward exchange. Talk this through with your CPA before structuring a related-party trade.
Vacation property treated as investment
Properties used personally for more than 14 days per year (or more than 10% of rental days, whichever is greater) generally fail the “held for investment” test. The IRS published a safe harbor (Rev. Proc. 2008-16) that helps establish investment intent for second homes — ask your CPA before exchanging one.
Colorado-specific considerations
Colorado’s income tax conforms to the federal definition of taxable income, so a properly executed federal 1031 also defers Colorado state tax. There is no separate state-level 1031 election to file, and no separate Colorado reporting hurdle beyond the standard state return.
Two practical Colorado wrinkles to budget for:
- Property taxes during the exchange. Colorado property taxes are billed in arrears by the county treasurer. Pro-rations at both closings need to flow cleanly — coordinate with your title officer early.
- Metropolitan district mill levies. Some newer Colorado developments have metro-district debt that adds substantially to the effective property tax rate. Always verify metro-district status on a replacement property before you commit. See our Colorado property taxes for investors guide for the full breakdown.
When NOT to do a 1031
A 1031 is not always the right move. Skip it when:
- The gain is small. If your gain is $20K or less, the QI fees, transaction friction, and timeline risk often outweigh the deferral benefit.
- You want out of the asset class. 1031 only defers gain into more real estate. If you want to redeploy capital into stocks, a business, or your own primary residence, taking the tax hit and being done is cleaner.
- You inherited the property. Inherited property gets a stepped-up basis on the date-of-death value. Selling soon after typically generates little or no gain — no 1031 needed.
- Estate planning is the real goal. If the long-term plan is to hold until death and let heirs receive the stepped-up basis, 1031 can be part of the strategy, but make sure the trade actually fits the estate plan before executing.
- You are converting to a primary residence soon. Section 121 (primary residence exclusion) and Section 1031 interact in specific ways. Bad sequencing can blow both benefits. Run the conversion timeline past a CPA first.
How to find replacement property in 45 days
The 45-day clock is the most stressful part of an exchange for most Colorado investors. The MLS moves fast and good investment property does not sit. Three sourcing channels we see work consistently:
- Off-market relationships. Real estate investment companies (including EZ Investments) routinely have properties under contract that fit the typical 1031 replacement profile — cash-flowing rentals or value-add deals along the Front Range.
- Direct sourcing. Lining up a target property before the relinquished property closes so the 45-day clock starts with an identification already in hand.
- DSTs as a backup. A Delaware Statutory Trust interest can serve as a backup identification on the 45-day list so the exchange does not fail outright if other deals fall through.
If you are working on a 1031 and need to see off-market Colorado inventory, join our buyers list — we send analyzed deals with comps and repair estimates, structured for fast diligence.
Related reading
- Colorado Property Taxes for Investors
- The BRRRR Strategy in Colorado
- Join the Buyers List
- How EZ Investments works for sellers
Frequently asked questions
Does Colorado conform to federal 1031 rules?
Yes. Colorado’s income tax starts from federal taxable income, so a properly executed 1031 exchange that defers federal gain also defers Colorado state gain. There is no separate state-level 1031 election to file. Talk to a Colorado CPA to confirm reporting on your state return.
Can I 1031 into a property I will live in?
No, not immediately. Both the property you sell and the property you buy must be held for investment or productive use in a trade or business. Converting a 1031 replacement property to a primary residence later is possible, but it requires a holding period (commonly cited as at least 2 years of rental use) and specific Section 121 / Section 1031 interaction rules. Always run this past a CPA before planning a conversion.
What happens if my replacement property costs less than the property I sold?
The difference is called boot, and it is taxable. To fully defer gain, the replacement property must equal or exceed the sale price of the relinquished property, and you must reinvest all of the net equity. Anything left over — cash received, mortgage relief, or non-like-kind property — is treated as boot in the year of exchange.
How long do I need to hold a 1031 replacement property?
The IRS has not published a bright-line holding period. Investors and tax pros commonly use one to two years as a defensible benchmark, but the real test is intent — did you genuinely hold for investment or productive use? Short holds increase audit risk. Document intent and ask your CPA before you sell.
Can I 1031 a primary residence?
Not directly. 1031 is for investment or business property. A primary residence falls under Section 121 (the up to $250K / $500K exclusion). However, a former primary residence that has been converted to a long-term rental can sometimes qualify, and a property used partly for personal use and partly for rental has special rules. Talk to a CPA before you sell.