Colorado Is Coming for STR Operators From Two Directions. Here's What You Need to Know.

Colorado lawmakers are advancing a bill that would reclassify heavily-rented STRs as commercial property — triggering a 400% property tax increase. And this November, at least two ski-adjacent communities have STR restriction measures on the ballot. If you own or are underwriting Colorado mountain assets, the clock is ticking on both fronts.

The tax bomb is real. The proposed legislation would classify STRs rented more than 90 days annually as commercial lodging property rather than residential. Colorado's commercial property tax assessment rate runs approximately 27.9%, while residential sits at 6.765%. On a $500,000 property, you're looking at an annual tax jump from roughly $3,383 to $13,950. That's $10,567 more per year — enough to wipe out most operators' net margin.

Local ballot measures add pressure at ground level. At least two ski-adjacent communities are putting STR restrictions to voters this November. These local measures operate independently from state legislation, creating a two-front assault on mountain market operators. The combination of state tax reclassification and municipal use restrictions means some properties could simultaneously face quadrupled tax bills and sharply reduced rental flexibility.

The 90-day threshold changes underwriting math immediately. Operators banking on 200+ night annual occupancy need to model scenarios under 90 nights or accept commercial classification. This particularly impacts Breckenridge, Steamboat, and Vail-area properties where strong shoulder seasons previously justified premium acquisitions. Properties purchased in 2021–2022 at sub-5% cap rates now face material assumption failures.

Run your numbers against the 90-day line right now. Pull actual rental nights for 2024, 2025 and year-to-date 2026. If you're consistently above 90, you have three options: accept commercial tax rates and adjust pricing upward, artificially cap rental nights to stay residential — likely killing profitability — or sell before the bill passes. There's no middle path.

Diversify immediately if you're Colorado-heavy. Operators with 80%+ of units in Colorado mountain markets face concentrated regulatory risk. Wyoming's Jackson Hole and Montana's Big Sky offer similar guest demographics without state-level STR tax reclassification threats. Kalispell and Whitefish provide mid-market alternatives. Idaho's Sun Valley region remains operator-friendly despite housing concerns.

Model the worst case. If your property sits in a community with a November ballot measure, underwrite a scenario where both state tax reclassification and local rental restrictions hit simultaneously. This means 400% higher taxes on potentially 30–50% fewer allowable rental nights. Most properties fail this stress test.

Don't assume grandfathering. The legislative language doesn't include existing-use protections. That $1.2M Breckenridge condo you bought in 2022 specifically for STR cash flow? You're not protected because you bought before the law changed. Plan accordingly.

Consider corporate structure changes. Some operators are exploring whether holding properties through specific entity types might affect classification. Consult a Colorado-licensed tax attorney before the bill passes, not after. The window for restructuring closes fast once legislation moves.

Distressed Colorado STR portfolios will hit market in Q1 2026. Operators who overleveraged in 2021–2022 can't absorb a $10K+ annual tax increase per door. Watch for Breckenridge and Vail-area portfolios from groups managing 8–15 units. These sellers paid peak prices and have minimal equity cushion.

Wyoming and Montana luxury inventory will tighten. Money exiting Colorado needs somewhere to go. Expect Jackson Hole and Big Sky comps to firm through winter. Teton County Wyoming doesn't face similar legislative pressure, making it the natural landing spot for displaced Colorado capital.

RV parks and campgrounds near Colorado ski towns gain appeal. Properties offering overnight accommodation without STR classification sidestep both tax and ballot measure risk. Developed campgrounds within 45 minutes of major resorts will see buyer interest from pivoting STR operators.

The November elections are 90 days out. The legislative session starts in January. Your underwriting assumptions from 18 months ago are now obsolete.

How exposed are you to Colorado right now? Reply with your situation — I read every response.

— Timberline Operator

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