Colorado State Athlete Taxes

Income Tax in Colorado

Colorado uses a flat 4.40% income tax rate on all taxable income, regardless of earnings level. One rate, no progressive brackets, no phase-outs, the same percentage applies whether an athlete earns $200,000 or $20 million. This structural simplicity makes Colorado one of the easiest states to model for financial planning purposes across the USA, which itself has real practical value for athletes managing multi-state income across a long season.

Colorado’s flat rate structure was reduced to its current 4.40% level following a 2022 voter-approved ballot measure, and the state constitution’s flat-rate requirement means any future increase would also require voter approval, a structural protection that makes this rate more stable than similar rates in states where legislative changes alone can shift the number.

TABOR (Taxpayer’s Bill of Rights), is a constitutional amendment requiring the state to return excess revenue to taxpayers when collections exceed certain growth limits. In strong revenue years, this mechanism has temporarily reduced the effective income tax rate below 4.40% through either rate reductions or direct refund checks.

For 2024, TABOR triggered a temporary reduction to 4.25%. As of 2026, the base rate has reverted to 4.40%, but the TABOR mechanism remains in place through a minimum of 2034, making Colorado’s effective rate occasionally lower than the statutory rate depending on economic conditions.

Capital gains are taxed at the same flat 4.40% rate as ordinary income, no preferential Colorado rate for long-term investment gains, unlike some states with explicit capital gains subtractions.

• Applies to wages, bonuses, endorsements, sponsorships, and all other taxable income sourced to Colorado
• Residents taxed on worldwide income at 4.40%
• No local income tax in any Colorado jurisdiction, only the state-level flat rate applies
• Predictable modeling due to flat structure, no bracket surprises on signing bonuses or large one-time payments

Example

An NBA player earning $25 million while domiciled in Colorado could owe ~$1.1 million in state income tax at the flat 4.40% rate. The same income earned in California could generate over $3 million in state income tax at the progressive top rate. Over a four-year contract at the same earnings, Colorado’s flat rate structure represents over $8 million in retained net income compared to a California tax environment, on an identical contract.

Sales Tax

Colorado’s state-base sales tax rate is 2.9%, the lowest base rate of any state that levies a sales tax. However, Colorado’s local sales tax structure is among the most complex in the country, with local governments adding significantly variable rates on top of the state base:

• Denver: ~9.15% combined in 2026
• Boulder: ~8.845% combined
• Colorado Springs: ~8.20% combined
• Mountain areas (Aspen, Vail): combined rates can reach up to 11.2%, but sits around ~10%

Groceries and prescription drugs are exempt from Colorado’s state sales tax, though local taxes may still apply to some food items depending on municipality.

For athletes making large discretionary purchases, location matters, the same vehicle purchase generates meaningfully different sales tax depending on which county the asset or liability was purchased in.

Example

A $200,000 vehicle purchased in Denver at approximately 9.15% combined sales tax could generate roughly $18,300 in sales tax on that transaction. The same purchase in a mountain resort area near Breckenridge at 11.2% could generate approximately $22,400, a $4,100 difference on a single purchase driven entirely by which jurisdiction the transaction occurred in.

Jock Tax

Colorado taxes income earned from work performed within its borders, applying the standard duty-day apportionment calculation used across all income-tax states. Colorado hosts franchises across all four major professional sports leagues, NFL (Broncos), NBA (Nuggets), MLB (Rockies), NHL (Avalanche), meaning visiting athletes from all four leagues generate Colorado jock tax exposure during regular-season road schedules.

• Visiting athletes owe 4.40% on income apportioned to duty days worked in Colorado
• Colorado-domiciled athletes owe 4.40% on worldwide income, with credits typically available for taxes paid to other states on road game income
• The flat rate structure makes Colorado jock tax modeling particularly clean, no bracket complexity, just 4.40% applied to the duty-day apportioned amount

Example

An NFL player competing in an away game against the Denver Broncos owes Colorado income tax on the portion of salary allocated to that game day’s duty, calculated using the total Colorado duty days divided by total season duty days. A Colorado-domiciled athlete in the same scenario pays 4.40% on all income, offset by credits for taxes owed to other states on road game income, with the net Colorado effective rate generally landing close to the flat 4.40% on the full annual picture.

Housing

Colorado’s statewide median home price sits in the $550,000-$600,000 range:

• Denver 3-bed/2-bath: commonly $600,000+ in established neighborhoods
• Boulder: $800,000-$1M+ is typical
• Mountain luxury markets: multi-million dollar standard for ski-in/ski-out and resort properties

Compared to California, Colorado offers lower housing costs with comparable outdoor lifestyle access. Compared to true no-income-tax states like Nevada or Tennessee, Colorado carries both a higher income tax rate and higher housing costs in its premium markets, though the mountain lifestyle is a genuine differentiator that influences residency decisions for certain athletes.

Property Tax

Colorado’s average effective property tax rate is approximately 0.50% of assessed home value, among the lowest effective rates nationally. This is partly structural, TABOR limitations on local government revenue and historical assessment rules have kept Colorado’s effective property tax burden well below the national average even as home values have risen sharply.

County-level rates vary:

• Denver/Adams counties: effective rates near 0.66% at the higher end
• Mountain resort counties like Pitkin (Aspen): effective rates around 0.35%, tourism revenue subsidizes lower residential rates
• Lower-population rural counties (Jackson): rates can be as low as 0.22%

For an athlete purchasing a $1 million home in Denver, annual property taxes at the effective rate run approximately $6,600, a fraction of what comparable property in Illinois, Texas or Connecticut could generate annually.

Residency Rules

Athletes establishing domicile in Colorado generally would have to:

• Obtain a Colorado driver’s license
• Register vehicles in-state
• Register to vote in Colorado
• Establish primary residence
• Demonstrate clear intent to remain

Colorado taxes full residents on worldwide income at the flat 4.40% rate, including salary, endorsements, investment income, and all other earnings regardless of source.

Residency enforcement in Colorado is generally less aggressive than audit-heavy states like California, though multi-state athletes should still maintain consistent documentation.

Example

A baseball player signing with the Colorado Rockies and establishing full Colorado residency owes 4.40% on salary and endorsement income at the flat rate, while still separately owing jock tax to other states for income apportioned to away games played in income-tax states. The flat structure keeps the home-state obligation simple to model, even when the road-game jock tax picture across a 162-game schedule adds complexity on top.

Why Colorado Is Moderately Athlete-Friendly

• Flat 4.40% income tax, simple, predictable, and constitutionally protected against rate increases without voter approval
• TABOR mechanism can reduce effective rates below ~4.40% in high state revenue years
• No local income tax in any Colorado jurisdiction
• Property tax effective rate of 0.50%, among the lowest in the Mountain West and well below the national average
• Strong professional sports presence across all four major leagues in Denver
• Lower housing costs than California with comparable mountain outdoor lifestyle access

Colorado isn’t a no-income-tax state, and it’s not trying to be. What it offers is predictability, a single, constitutionally protected flat rate that every athlete and their financial advisor can model cleanly without bracket complexity, combined with one of the lower property tax burdens in the country.

For athletes whose primary concern isn’t zero-tax optimization, but rather overall financial stability in a high-quality-of-life market with major sports infrastructure, Colorado represents a genuine middle tier that’s substantially more efficient than California or New York, without requiring relocation to a market like Las Vegas or Houston.

Next Athlete State Tax Reads

• Utah State Athlete Taxes
• Wyoming State Athlete Taxes
• Nevada State Athlete Taxes
• Arizona State Athlete Taxes
• New Mexico State Athlete Taxes

Disclaimer: This article contains general financial information for educational purposes and does not constitute professional advice.

Return to State Athlete Tax Glossary