Second-Home Tax Implications in Colorado for Wealthy Owners

Second-Home Tax Implications in Colorado for Wealthy Owners

At a Glance

This guide to Colorado second home property tax explains what to verify with your CPA before you buy or convert a property.

Rick Janson is a Denver real estate agent with Compass Real Estate who works with buyers across Cory Merrill, Platt Park, Bonnie Brae, Lone Tree, Cherry Hills Village, and Greenwood Village. Owning a second home in Colorado changes three things at once: your federal deduction math, how rental income is treated, and whether a resort-town transfer tax applies at closing. The tax implications of owning a second home in Colorado for wealthy individuals are driven less by Colorado income tax, which is a flat rate, and more by federal deduction limits, the Augusta Rule, expense-allocation method, and municipal transfer taxes in towns like Aspen and Telluride. Everything below is general information, not tax advice; confirm your specifics with a CPA and a Colorado real estate attorney.

Tax implications of owning a second home in Colorado for wealthy individuals

A second home is not a primary residence and is not, by default, an investment property; it occupies a middle category the IRS treats differently depending on how many days you rent it. That classification decision, made by your actual usage during the year, controls most of your tax outcome.

The single larger surprise for buyers moving from a Denver primary residence in Hilltop or Washington Park to a mountain second home is the transfer tax. Colorado's statewide documentary fee is trivial, but a handful of resort towns layer on a percentage-based tax that can be the biggest line item at closing. Name the town first, then budget.

Direct answer: the tax rules that change with a second home

A second home in Colorado is taxed differently from your primary residence in four concrete ways, and here is the compact version.

A second home in Colorado differs from a primary residence on four tax points. First, mortgage interest is deductible only on total acquisition debt up to the current federal cap combined across your first and second homes, not per home, and state-and-local-tax deductions including property tax remain limited under federal law. Third, once you rent it more, expenses must be split between personal and rental use, and the method you choose changes your deduction. Fourth, most Colorado counties charge no transfer tax, but resort municipalities such as Aspen, Telluride, Vail, and Breckenridge impose a real estate transfer tax paid at closing. Finally, the primary-residence capital-gains exclusion does not apply to a second home unless you convert it and meet the ownership-and-use test. Confirm all figures with your CPA. The practical takeaway: your usage pattern and the property's location determine your tax bill more than the purchase price does. For the deduction and legacy-planning side, it helps to read up on how primary residence and investment property tax treatment differ before you finalize how you'll use the home.

The Augusta Rule (14-day tax-free rental) and how owners use it

The rule is named for Augusta, Georgia, where homeowners historically rented to Masters Tournament visitors, but it applies anywhere, including a Vail or Breckenridge home rented during a peak ski week or a Telluride place rented over a festival weekend.

The One Big Beautiful Bill Act, signed July 2025, made no changes to IRC §280A(g), so the 14-day exclusion carries into the 2026 tax year (verify with your CPA). That stability matters because owners who plan a single high-value rental window each year can rely on the exclusion holding.

The categorical boundary: the Augusta Rule is an income exclusion, not an expense strategy. Cross the 15-day threshold and you lose the exclusion entirely and shift into the allocation rules below. Track your rental days in writing with dated records.

Expense allocation: the IRS method vs the more favorable Bolton method

There are two accepted approaches, and they treat mortgage interest and property taxes differently.

The IRS method, described in IRS Publication 527 (Residential Rental Property), allocates all expenses, including mortgage interest and property taxes, based on the ratio of rental days to total days the home was used. The Bolton method, which comes from Bolton v. Commissioner, 694 F.2d 556 (9th Cir.

The interest and tax portion allocated to personal use can then be claimed as an itemized deduction, subject to federal limits.

The concrete decision factor is how many total days the home is used. When personal-use days are high relative to rental days, the Bolton method tends to produce a larger overall deduction. Ask your CPA to run both methods on your actual day counts before filing, because the difference is real dollars, not a rounding item. Colorado follows federal taxable income as its starting point, so the method you pick also flows into your state return.

Resort transfer taxes (RETT) in Vail, Aspen, Breckenridge, Telluride

A real estate transfer tax (RETT) is a one-time municipal tax charged on the sale price when property changes hands within certain Colorado resort towns, and in most of these towns the buyer pays it at closing. This is separate from and far larger than Colorado's statewide documentary fee.

The rates vary by town and are the single biggest closing surprise for buyers used to Denver, where no municipal transfer tax applies.

That is not a rounding error; it is a number to price into your offer.

Who pays matters and is town-specific. In Summit County generally the standard Colorado contract lets buyer, seller, or a split cover the tax, though buyer-pays is the local custom. Confirm the exact allocation in your contract's transfer-tax section before you sign.

One more scope note: these RETTs are municipal, not statewide. A second home in Denver neighborhoods like Cherry Creek or Crestmoor, or in suburban Lone Tree, Greenwood Village, and Cherry Hills Village, carries no municipal transfer tax at all.

Decision Matrix

Use your intended usage and location to pick a lane, because those two facts drive the tax outcome more than anything else.

For the ownership-structure question, it's worth reviewing how trust structures interact with real estate ownership alongside your attorney.

Current Market Snapshot

For a Colorado second home, the tax picture turns on three specifics your CPA should confirm for the current year: whether short-term rental use averages seven days or fewer (which moves losses out of the passive category under Treas. Reg.

Buyer Due Diligence Note

This is educational information, not tax advice. Rick coordinates this review with your CPA and estate attorney.

How To Check The Property Record

Verify ownership, legal description, and prior sale price through the county assessor and clerk-and-recorder for the county where the home sits, not a national listing portal. For a Vail or Breckenridge home that is Eagle County or Summit County; for Aspen or Telluride it is Pitkin or San Miguel County; for a Denver-area second home it is Denver, Douglas, or Arapahoe County depending on the neighborhood.

The record you want is the recorded deed and the Real Property Transfer Declaration (TD-1000), which every Colorado transfer files alongside the deed and which documents the consideration used to calculate fees. Pulling the prior deed tells you the last sale price and whether the property has ever been transferred into an LLC or trust, which is relevant if a resort town would treat a future entity transfer as a taxable event.

As of July 1, 2025, Colorado standardized the deed recording fee to a flat rate per document statewide under House Bill 24-1269 (verify the current amount at the county clerk). Confirm that figure and the state documentary fee, defined under C.R.S. §39-13-102, directly with the county clerk for your parcel.

When To Review Offer Documents And Deadlines

Review the transfer-tax and closing-cost sections of your contract before the objection deadline, not at the closing table, because who pays the RETT is negotiable on the standard Colorado contract and cannot be changed once you've signed off. The Colorado Contract to Buy and Sell Real Estate gives you three options for transfer tax: buyer pays, seller pays, or the parties split it.

The concrete deadline to watch is your inspection and objection period, the window in which you can still raise the transfer-tax allocation or object to unexpected closing costs.

The second document to read closely is any HOA or resort-community declaration, since certain subdivisions layer a private transfer fee on top of the municipal RETT. Ask your agent and title company to surface any private transfer assessment during the title-review period.

What To Verify

Reg.

Verify five things before closing on a Colorado second home, and get each in writing. First, the exact municipal RETT rate and who pays it for your specific parcel, confirmed by the title company. Second, the current statewide recording fee and documentary fee at the county clerk, tied to House Bill 24-1269 and C.R.S. §39-13-102.

Third, confirm the current-year treatment of the Augusta Rule and the OBBBA's effect on IRC §280A(g) with your CPA, since tax law can change between filing years. Fourth, run both the IRS and Bolton expense-allocation methods on your projected day counts with your CPA before you commit to a rental strategy.

Fifth, if you intend to hold the home in an LLC or trust, confirm with the resort town whether the entity transfer triggers RETT or requires an exemption filing, because Summit County treats transfers into a business name or trust as recordable events that may need an approved exemption application. For the broader planning picture, buyers often pair this with real estate legacy planning for wealthy buyers.

Field Notes

The first question I ask a second-home buyer is what the usage pattern will actually look like across a year, because that single answer determines whether the Augusta Rule, the allocation methods, or neither will matter for them. Buyers who want a genuine lock-and-leave retreat and only rent a week or two behave very differently at tax time from those who want the home working as a part-time rental.

The most common budgeting miss I see is treating a resort purchase like a Denver purchase and forgetting the transfer tax entirely. If a low-maintenance mountain base is the goal, it's worth thinking through what lock-and-leave luxury ownership involves before touring.

The honest trade-off on ownership structure: an LLC or trust can serve estate and liability goals, but in RETT towns the act of transferring an existing property into that entity can itself be a recordable event requiring an exemption application. That's a reason to decide the structure before you buy, not after. This guide was reviewed against current municipal RETT schedules and federal rules in July 2026.

If you're weighing a mountain second home against a Denver-area purchase and want the transfer-tax math and rental-day strategy run against your actual numbers, text or call me at 303-589-2320 or email [email protected] with the town or parcel you're considering. I'll send you the applicable RETT rate and closing-cost picture so you can compare your real options and the latest local facts in Denver before you decide, and you can also learn more about how I work with buyers or reach out directly.

Work With Rick Janson in Tax Implications of Owning A Second

Rick Janson helps buyers compare homes and neighborhoods with a practical tour plan. The service area covers Denver, Cherry Hills Village, Greenwood Village, Cherry Creek, LoHi, and Highlands, and the next conversation can turn commute pattern, neighborhood fit, HOA or metro-district tolerance, school-boundary checks, and current inventory into concrete next steps.

• Service areas: Denver, Cherry Hills Village, Greenwood Village, Cherry Creek, LoHi, Highlands, RiNo, and Washington Park.
• Office or service-area location: 233 Clayton St. Denver, CO 80206.
• Phone: (303) 589-2320
• Email: [email protected]
• Google Business Profile: Rick Janson on Google Maps

Frequently Asked Questions

Does Colorado charge a real estate transfer tax when I buy a second home?

Colorado does not impose a statewide real estate transfer tax, which sets it apart from many other states. Certain local jurisdictions have grandfathered transfer assessments in place, so confirm the specifics for the property's location before closing.

How is a second home taxed differently from my primary residence in Colorado?

The main distinction shows up at the federal level and in how the property is classified for exemptions. A primary residence can qualify for the capital gains exclusion on sale and the homestead exemption for eligible owners, while a second home generally does not. For property tax, the assessment rate and any residential classification depend on how the home is used, so a home held partly for rental may be treated differently than one kept solely for personal use.

Can I rent out my Colorado second home for 14 days without paying tax on the income?

Crossing that 15th day changes the analysis entirely and pulls you into rental reporting rules. Track rental days carefully, because the threshold is strict and does not prorate.

How are expenses split between personal and rental use of a Colorado vacation home?

When a home is used for both personal stays and rental, expenses are generally allocated based on the ratio of rental days to total days of use. A typical breakdown works like this: (1) direct rental costs are deductible against rental income, (2) shared costs such as utilities, insurance, and depreciation are prorated by the use ratio, and (3) mortgage interest and property taxes follow their own allocation rules. The distinction between a residence and a rental property under the tax code affects how much loss, if any, you can claim, so the classification matters.

Should I hold my Colorado second home in an LLC or trust for tax purposes?

This is a decision with genuine trade-offs rather than a single right answer. An LLC can offer liability separation and may suit properties generating rental income, while a trust is often oriented toward estate planning and transfer of assets, and each structure carries its own filing, cost, and mortgage-financing implications. Because the tax and lending consequences vary with your situation, review the options with a CPA and an attorney before titling the property.