The short answer
Colorado requires whoever provides closing and settlement services to withhold the lesser of 2% of the sales price or the seller's net proceeds when the seller is a nonresident individual, estate or trust, or a corporation organized outside Colorado without a permanent place of business in the state, and the price exceeds $100,000. A fully deferred section 1031 exchange avoids the withholding by signature: page 2 of Form DR 1083 carries an Affirmation of No Reasonably Estimated Tax to be Due, signed under penalty of perjury, stating that no Colorado income tax is reasonably estimated to be due from the gain on the transfer. The title company checks box 12e, files the DR 1083 within 30 days of closing and remits nothing. There is no exchange-specific box and no gain-based alternative, so boot changes the answer. The state's other rules for exchangers are on the Colorado 1031 exchange page.
At a glance
| Statute | C.R.S. 39-22-604.5, withholding on transfers of Colorado real property by nonresident transferors |
|---|---|
| Amount | The lesser of 2% of the sales price or the net proceeds otherwise due to the seller |
| Threshold | No withholding or DR 1083 when the sales price is $100,000 or less |
| Who is withheld | Individuals, estates and trusts with a last-known address outside Colorado; corporations organized elsewhere with no permanent place of business in the state |
| Exchange affirmation | Affirmation of No Reasonably Estimated Tax to be Due on page 2 of DR 1083, reported on line 12e |
| Filing | The withholding agent files DR 1083 within 30 days of closing, with DR 1079 and payment only if tax was withheld |
| Current form | DR 1083 (10/01/25) and DR 1079 (07/16/24) |
| Credit | Withheld tax is claimed on the Colorado return on the line referencing DR 1079, not the W-2 line |
Colorado's 2% withholding is a closer's duty, measured against net proceeds
C.R.S. 39-22-604.5 puts the obligation on the withholding agent: a title insurance company or its agent, an attorney, a bank, or anyone else providing closing and settlement services. If the transferor is a nonresident, the agent withholds the lesser of 2% of the sales price or the net proceeds otherwise due to the transferor, and remits it with Form DR 1079 within 30 days of the closing date. The transferor claims the amount as a credit on the Colorado income tax return for the year of the transfer.
Residency is tested mechanically. For individuals, estates and trusts, withholding is required if the last-known street address is outside Colorado on the IRS Form 1099-S or on the disbursement authorization. A corporation is withheld only if it is organized outside Colorado, is not qualified to transact business in the state, and does not maintain and staff a permanent office there. Partnerships filing a federal partnership return are exempt by affirmation, which also covers most multi-member LLCs taxed as partnerships.
Sales price includes cash, the fair market value of other property and any liability the buyer assumes or takes subject to, so a $1,000,000 contract price is a $1,000,000 base even if the mortgage payoff eats most of it. No withholding, and no DR 1083, is required when the sales price is $100,000 or less, or in foreclosure and deed-in-lieu transfers to a lender.
The affirmation on page 2 is how an exchange avoids the hold-back
The statute lets the agent skip withholding when it relies in good faith on a written affirmation executed by the transferor. The DR 1083 prints five affirmations on its second page: Colorado residency, permanent place of business, partnership under section 761(a), principal residence under section 121, and the one an exchanger uses, the Affirmation of No Reasonably Estimated Tax to be Due.
Its operative sentence is that there will be no Colorado income tax reasonably estimated to be due on the part of the transferor as a result of any gain realized on the transfer. Right beneath it the form warns that nonresidents are subject to Colorado tax on gains from Colorado real estate to the extent included in federal taxable income. A fully deferred exchange recognizes no gain federally, Colorado starts from federal taxable income, and so the affirmation is true; the seller, a corporate officer or a fiduciary signs under penalty of perjury.
On page 1 the title company checks line 12e, affirmation of no tax reasonably estimated to be due to no gain on sale signed, leaves line 11 blank and files the DR 1083 within 30 days. Because the form has no section 1031 wording of its own, attach nothing to it, but keep the exchange agreement in the title file so the good-faith reliance is documented.
Sign before disbursement, because the agent decides, not you
The affirmation has to be in the closer's hands before funds move. Once the agent has withheld and sent the DR 1079 to Denver, the money is a credit on your Colorado return, recoverable only by filing it, and it cannot be returned to the qualified intermediary as exchange funds. The general rule on state withholding is the same everywhere; Colorado simply gives the agent no discretion once the affirmation is missing.
Tell the title company at contract signing that the sale is part of an exchange and that proceeds are assigned to the intermediary, and ask for the DR 1083 draft with box 12e marked. Spouses holding jointly are one transferor on one DR 1083 unless separate 1099-S forms are issued; other co-owners each get a form, and a resident co-owner signs the residency affirmation while the nonresident signs the no-tax affirmation.
The Department may assess penalties and interest on an agent who fails to withhold, and the statute gives the agent the greater of $500 or 10% of the amount that should have been withheld, up to $2,500, as exposure. That is why some title companies refuse the affirmation unless the exchange documents are in the file; have them ready.
Boot means the affirmation may not be true, and Colorado has no gain-based alternative
Unlike states that let a seller withhold on recognized gain, Colorado's DR 1083 offers only the listed affirmations or the full 2%-or-net-proceeds hold-back. If you will take cash boot that produces Colorado tax, you cannot honestly affirm that no tax is reasonably estimated to be due, and the agent withholds on the whole transfer.
Hypothetical: a Texas resident sells a Fort Collins retail building for $1,000,000, pays off a $400,000 loan and $60,000 of costs, and keeps $50,000 of cash outside the exchange. Without the affirmation the withholding is the lesser of $20,000 (2% of price) or $540,000 (net proceeds), so $20,000 goes to Denver against a Colorado tax on the boot of roughly $2,000 at the state's flat rate. The seller recovers the difference on the Colorado nonresident return the following spring. Run your own numbers with your CPA, and weigh whether keeping the boot is worth lending the state $20,000 for a year; intentional boot planning covers that trade-off.
A seller whose boot is small enough that losses or deductions wipe out the Colorado tax may still sign the affirmation, since it speaks to tax reasonably estimated to be due rather than to gain, but the signer carries the perjury risk and the agent may decline to rely on it.
Failed exchanges, credits and what Colorado does not do afterward
If the exchange collapses after closing, the affirmation was a reasonable estimate when signed and the DR 1083 is not amended. The gain is reported on your Colorado nonresident return for the year it is recognized, with ordinary estimated tax exposure, and your options after a failed exchange are federal questions first.
When tax is withheld, the DR 1079 payment is credited to the transferor's account and claimed on the line of the DR 0104 that references DR 1079, not the line for Forms W-2 or 1099; a refund follows if it exceeds the tax. Colorado has no annual form that follows deferred gain into replacement property in another state, so an exchange of Colorado property for a DST interest holding property elsewhere creates no continuing Colorado filing beyond the year of sale.
Related questions
Is there a box on DR 1083 for a 1031 exchange?
No. The exchange is covered by the Affirmation of No Reasonably Estimated Tax to be Due on page 2, which the title company reports on line 12e. The form itself never mentions section 1031, so the exchange agreement in the closing file is what supports the affirmation.
I own the property through a multi-member LLC taxed as a partnership. Do I need the affirmation?
A transferor that is a partnership under section 761(a) and files a federal partnership return signs the Affirmation of Sale by Partnership instead, and no withholding applies regardless of the exchange. A single-member LLC is treated by reference to its owner, so a nonresident owner signs the no-tax affirmation.
The title company withheld 2% even though I signed the affirmation. Can I get it back into the exchange?
Not into the exchange. Once remitted with DR 1079 the money is a credit on your Colorado return and comes back only as a refund after you file. The exchange proceeds held by the intermediary are reduced by that amount, which can leave you short on the replacement side; see leftover cash after an exchange.
Does the $100,000 threshold apply to my share or the whole price?
The DR 1083 instructions test the sales price of the property, and separately ask for the selling price of each transferor's interest on line 9. The exemption is written as the sales price being $100,000 or less, so treat the whole transaction as the measure and confirm with the closer if your interest alone is small.
What happens if I sign the affirmation and then take boot at closing?
The affirmation must be true when signed. If gain will be recognized and Colorado tax reasonably estimated, the correct course is to let the agent withhold the lesser of 2% of price or net proceeds and claim the credit on your return; a false affirmation exposes the signer to the civil and criminal penalties of Colorado tax law.
Sources
Checked against these publications on September 30, 2026. Rules and figures change; confirm the current version with your CPA or attorney before you act. This page is general information, not tax or legal advice.
- Colorado Department of Revenue, Form DR 1083 (10/01/25), Information with Respect to a Conveyance of a Colorado Real Property Interest, with instructions and affirmations
- Colorado Department of Revenue, Form DR 1079 (07/16/24), Payment of Withholding Tax on Certain Colorado Real Property Interest Transfers
- Colorado Department of Revenue, Income Tax Topics: Part-Year Residents and Nonresidents (nonresident real estate withholding)
- Colorado Revised Statutes section 39-22-604.5, Withholding tax, transfers of Colorado real property, nonresident transferors
- 26 U.S.C. section 1031, Exchange of real property held for productive use or investment
