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Colorado Paycheck Overview

Colorado uses a flat income tax rate of 4.4% for the 2025 tax year, applied uniformly to all taxable income regardless of how much you earn. This rate has been gradually declining over recent years thanks to voter-approved measures under the Taxpayer's Bill of Rights (TABOR), which requires excess state revenue to be refunded to taxpayers. For a typical Colorado worker earning around $2,500 bi-weekly (approximately $65,000 annually), the flat rate simplifies tax planning considerably. After accounting for the federal standard deduction of $15,000 and Colorado's conformity to federal taxable income, you can estimate your state tax liability with straightforward arithmetic. Combined with federal income tax in the 12% to 22% bracket range and FICA taxes of 7.65%, most Colorado workers see total deductions consuming roughly 28% to 35% of their gross pay.

Colorado State Income Tax Details for 2026

Colorado is one of a handful of states that uses a flat tax rate rather than progressive brackets. The current rate of 4.4% applies to Colorado taxable income, which generally starts with federal taxable income and then applies Colorado-specific additions and subtractions. Because Colorado uses federal taxable income as its starting point, you automatically benefit from the federal standard deduction ($15,000 single, $30,000 married filing jointly) when calculating your Colorado tax. This is a meaningful advantage over states like New Jersey that do not offer a standard deduction at the state level.

The flat rate means a worker earning $50,000 in taxable income pays $2,200 in state tax, while someone earning $150,000 pays $6,600. There are no higher brackets for high earners, which makes Colorado attractive for upper-income professionals compared to progressive-tax states like California or Minnesota where marginal rates can exceed 9%. Colorado voters reduced the rate from 4.55% to 4.4% effective in 2024, and there is ongoing discussion about further reductions depending on state revenue performance under TABOR.

To illustrate with a worked example: a single filer earning $65,000 annually would subtract the $15,000 federal standard deduction to arrive at $50,000 in Colorado taxable income. At the flat 4.4% rate, the state income tax is $2,200, yielding an effective state tax rate of approximately 3.4% on gross income. For a married couple filing jointly with a combined gross income of $110,000, the federal standard deduction of $30,000 leaves $80,000 in taxable income, producing a Colorado tax of $3,520 or an effective rate of 3.2%. These effective rates are noticeably lower than the headline 4.4% because of the generous federal deduction conformity.

FAMLI Payroll Tax and Other Colorado-Specific Deductions

Starting in 2024, Colorado workers contribute to the Family and Medical Leave Insurance (FAMLI) program through a payroll tax of 0.9% of wages, split equally between employer and employee at 0.45% each. This means your paycheck reflects a 0.45% deduction for FAMLI on top of your income tax and FICA contributions. FAMLI provides up to 12 weeks of paid leave for qualifying events including the birth or adoption of a child, caring for a family member with a serious health condition, or your own medical needs. Employers with fewer than 10 employees are exempt from the employer share, though employees still contribute their half.

Colorado does not impose local income taxes at the city or county level, which simplifies payroll calculations compared to states like Ohio or Maryland where local jurisdictions add their own tax. However, Colorado does have a statewide Occupational Privilege Tax (OPT) in some cities, most notably Denver, where employees pay $5.75 per month and employers pay $4.00 per month if the employee earns at least $500 in a calendar month. Aurora and Greenwood Village also impose similar small occupational taxes. These amounts are minor but worth noting for Denver-area workers.

Colorado Credits and Deductions

Colorado offers a robust set of tax credits that can meaningfully reduce your annual liability. The Colorado Earned Income Tax Credit (COEITC) is equal to 25% of the federal EITC, one of the most generous state-level matches in the country. For a single parent with two children earning $42,000, the federal EITC might be approximately $5,600, making the Colorado credit worth about $1,400 as a refundable addition to your state refund. Even workers without children can qualify if they meet income thresholds, receiving a smaller but still valuable credit.

The Colorado Child Tax Credit provides up to $1,200 per child under age six for families meeting income requirements, phasing out for higher earners. The Child Care Expenses Credit offers up to 50% of the federal Child and Dependent Care Credit for qualifying families with lower incomes, tapering to 25% for moderate earners. Additionally, Colorado provides a property tax/rent/heat credit (PTC Rebate) for qualifying low-income residents, seniors, and disabled individuals, worth up to $1,044 for renters and up to $1,160 for homeowners. Workers who purchase or lease qualifying electric or plug-in hybrid vehicles may also claim the Innovative Motor Vehicle Credit, worth up to $2,000 at the state level depending on the vehicle type and battery capacity.

Cost of Living Considerations

Colorado's cost of living varies dramatically by location. The Denver-Boulder-Broomfield metro area has experienced significant cost increases over the past decade, with median home prices exceeding $550,000 and rental costs well above the national average. A one-bedroom apartment in downtown Denver averages $1,700 to $2,100 per month, while two-bedroom units run $2,200 to $2,800. Front Range cities like Fort Collins, Colorado Springs, and Loveland are somewhat more affordable, with median home prices in the $400,000 to $475,000 range, but still above the national median. In contrast, areas on the Eastern Plains and Western Slope offer substantially lower housing costs, often 20% to 40% below the national average, with cities like Pueblo and Grand Junction having median home prices near $300,000.

For workers earning the typical bi-weekly paycheck of $2,500, the Denver metro area can feel tight despite Colorado's moderate tax rate. Housing, transportation, and childcare consume a larger share of take-home pay compared to similarly-sized cities in the Midwest or South. However, Colorado's strong job market in technology, aerospace, energy, healthcare, and outdoor recreation industries often provides wages that offset the higher cost of living, particularly for skilled professionals. Colorado Springs, which has a growing tech and defense sector along with lower costs than Denver, has become an increasingly popular alternative for workers seeking the Colorado lifestyle at a more accessible price point.

Tips for Colorado Workers

• Leverage the TABOR refund: Colorado frequently issues TABOR refunds when state revenue exceeds constitutional limits. In recent years, refunds have ranged from $400 to $800 per individual taxpayer depending on filing status and income. File your Colorado return on time to ensure you receive any refund owed, even if you do not owe state tax.
• Maximize pre-tax retirement contributions: Because Colorado uses federal taxable income as its starting point, every dollar contributed to a 401(k), 403(b), or traditional IRA reduces both your federal and Colorado state tax liability simultaneously. At a combined marginal rate of 16.4% (12% federal + 4.4% state), a $500 per-period 401(k) contribution saves roughly $82 in taxes per pay period, or about $2,132 per year across 26 pay periods.
• Account for FAMLI separately: The 0.45% employee FAMLI contribution is not included in this calculator. For a $65,000 annual salary, that represents approximately $293 per year or about $11 per bi-weekly paycheck in additional deductions.
• Consider the Denver OPT: If you work in Denver, your paycheck includes a $5.75 monthly Occupational Privilege Tax deduction. While small, it is an additional deduction beyond what this calculator shows.
• Claim the Colorado EITC: If your household income qualifies for the federal Earned Income Tax Credit, Colorado automatically provides an additional 25% match. A qualifying family could receive $1,000 to $1,750 in additional refundable credit at the state level, effectively boosting their annual take-home income.
• Explore Colorado-specific tax credits: Beyond the EITC, Colorado offers the Child Tax Credit (up to $1,200 per child under 6), the Child Care Expenses Credit, and credits for alternative fuel vehicles up to $2,000. These reduce your annual tax liability and can meaningfully increase your effective take-home pay when calculated across the year.
• Contribute to a Colorado 529 plan: Colorado allows a full deduction of 529 education savings plan contributions on your state return with no annual cap. A $3,000 annual contribution saves $132 in Colorado state tax at the 4.4% rate while building tax-free college savings for your children.

How Colorado Compares to Other States

Colorado's 4.4% flat rate positions it in the moderate range nationally. A single filer earning $80,000 pays approximately $2,860 in Colorado state tax, compared to $0 in neighboring Wyoming, roughly $3,960 in Illinois (flat 4.95%), about $3,800 in California, and $2,456 in Pennsylvania (flat 3.07%). Compared to other Mountain West states, Colorado is higher than Utah (4.65% flat but with a credit that brings effective rates to about 2.6%), lower than Montana (top rate 6.9%), and comparable to Idaho (flat 5.695%) when considering the total tax picture.

The absence of local income taxes is a significant advantage over states like Ohio (where municipal taxes can add 2% to 3%) and Maryland (where county taxes add 2.25% to 3.2%). When combined with its moderate sales tax rate (2.9% state plus local additions averaging 4.5% to 5% for a total of 7.4% to 7.9%), Colorado offers a balanced tax environment that neither heavily penalizes workers nor provides the zero-income-tax advantage of states like Texas, Florida, or Nevada. For a family of four earning $100,000, Colorado's combined state income tax of approximately $3,300 plus moderate property taxes of around $2,800 on a $450,000 home creates a total state and local tax bill that falls squarely in the middle of the national range.

Frequently Asked Questions

What is Colorado's income tax rate for 2026?

Colorado has a flat income tax rate of 4.4% on all taxable income. There are no brackets or graduated rates. This rate was reduced from 4.55% beginning in 2024 following a voter-approved measure under TABOR. Colorado uses federal taxable income as its starting point, so you benefit from the federal standard deduction when calculating your Colorado tax. For a single filer earning $65,000, the effective rate works out to approximately 3.4% of gross income after the standard deduction is applied.

What is the Colorado FAMLI tax?

FAMLI (Family and Medical Leave Insurance) is a payroll tax of 0.9% split between employer and employee (0.45% each). It funds up to 12 weeks of paid leave for qualifying family and medical events. The program began collecting premiums in 2024 and started paying benefits the same year. For a worker earning $65,000 annually, the employee share amounts to approximately $293 per year or about $11 per bi-weekly paycheck.

Does Colorado have local income taxes?

Colorado does not have local income taxes in the traditional sense. However, Denver and a few other cities impose a small Occupational Privilege Tax (OPT) of $5.75 per month on employees earning at least $500 in a month. Aurora charges $2.00 per month and Greenwood Village charges $4.00 per month. These are flat fees, not percentage-based taxes, and their impact on take-home pay is minimal.

How does TABOR affect my Colorado taxes?

The Taxpayer's Bill of Rights (TABOR) limits how much revenue the state can collect. When revenue exceeds the cap, the excess is refunded to taxpayers. This has led to periodic reductions in the income tax rate and direct refund checks ranging from $400 to $800 per person in recent years. TABOR essentially acts as a built-in mechanism to keep taxes from increasing without voter approval, and it is the primary reason Colorado's rate has fallen from 4.63% to 4.4% over the past several years.