Paycheck Calculator Colorado
Calculate your accurate take-home pay with Colorado state taxes, federal taxes, and FICA deductions
Colorado Tax Model Overview
2025 Key Rules:
- • Flat % rate on all taxable income
- • Last updated: 2025-01-18
Colorado Paycheck Calculator
Enter your salary information below to calculate your take-home pay in Colorado. Our calculator includes federal taxes, FICA, Colorado state taxes, and common pre-tax deductions.
Calculator Inputs
Your Take-Home Pay
Colorado Calculation Process
Step-by-Step Calculation Order
- 1Apply pre-tax deductions to reduce taxable income
- 2Calculate federal withholding using IRS Publication 15-T
- 3Calculate FICA taxes (Social Security + Medicare)
- 4Calculate Colorado state income tax at 4.4% flat rate
- 5Calculate Colorado FAMLI tax (0.45% employee + 0.45% employer)
- 6Subtract post-tax deductions if any
Colorado Forms & Documentation
Employee Forms
- 📄W-4 (Federal Employee's Withholding Certificate)
- 📄Colorado does not require separate state withholding certificate (uses federal W-4)
Employer Forms
- 📋Colorado Employer's Return of Income Tax Withheld
- 📋Colorado FAMLI premium reporting
Colorado Paycheck Examples
$25/hour, 40 hours, bi-weekly (Colorado)
High earner example ($120k annually)
Official Tax Resources & Sources
Federal Tax Resources
- IRS Publication 15-T (2025)
Federal income tax withholding methods
- SSA: Contribution and Benefit Base
Social Security wage cap and rates (2025: $176,100)
- IRS Topic 560: Additional Medicare Tax
Additional 0.9% Medicare tax rules
Colorado Tax Resources
- Colorado Tax Information ↗
Colorado official tax guidance
- Colorado Department of Revenue
State tax authority (link pending)
- Colorado Withholding Guidelines
Employer tax guides (link pending)
Colorado Frequently Asked Questions
🏛️What is Colorado's state income tax rate for 2025?
Colorado has a flat rate of 4.4% for 2025. This rate remains until October 2025, when potential temporary reductions may be determined.
🏛️What is Colorado FAMLI tax?
Colorado Family and Medical Leave Insurance (FAMLI) tax is 0.45% for employees and 0.45% for employers, applied to wages up to the Social Security wage base ($176,100 in 2025).
🏛️Does Colorado have local income taxes?
No, Colorado does not allow cities or counties to impose local income taxes on wages or salaries.
🏛️How does Colorado's flat tax work?
Colorado applies a single 4.4% tax rate to all taxable income levels. This simplifies calculations compared to progressive tax states.
🏛️What are Colorado's standard deductions for 2025?
Colorado generally follows federal standard deductions: Single $14,600, Married Filing Jointly $29,200, Head of Household $21,900.
What's New in Colorado for 2025
2025 Tax Year Updates
For 2025, Colorado maintains its 4.4% flat income tax rate until October 2025. The Colorado Department of Revenue will determine any temporary rate reductions in October. FAMLI tax continues at 0.45% for both employees and employers.
Common Colorado Payroll Mistakes
Avoid These Common Errors
- •Not accounting for FAMLI tax in payroll calculations
- •Assuming Colorado has local income taxes when it doesn't
- •Forgetting about potential mid-year rate changes in October
- •Using incorrect standard deduction amounts
How-To Guides for Colorado
📝 How to Fill Out Your W-4
- • Choose correct filing status
- • Calculate multiple jobs adjustment
- • Claim dependents accurately
- • Set additional withholding if needed
💰 How to Maximize Take-Home Pay
- • Contribute to 401k (pre-tax)
- • Use HSA for medical expenses
- • Optimize filing status
- • Review withholding annually
🏦 How to Calculate Annual Taxes
- • Multiply paycheck deductions by pay periods
- • Account for state tax variations
- • Consider year-end adjustments
- • Plan for potential refund or payment
🏛️ How to Handle Colorado State Forms
- • Complete W-4
- • Complete Colorado does not require separate state withholding certificate
📊 How to Read Your Pay Stub
- • Gross pay vs. net pay
- • Federal vs. state taxes
- • FICA breakdown (SS + Medicare)
- • Pre-tax vs. post-tax deductions
🔍 How to Verify Calculations
- • Check pay frequency math
- • Verify tax bracket calculations
- • Confirm FICA wage bases
- • Compare with actual pay stubs
Related Calculators
All State Calculators
Compare paycheck calculations across all 50 states plus territories
Salary Comparison Tool
Coming soon: Compare cost of living adjusted salaries between states
Tax Refund Estimator
Coming soon: Estimate your annual tax refund or amount owed
Share This Calculator
Help others calculate their Colorado paycheck by sharing this tool
Important Disclaimer
This calculator is for educational and estimation purposes only. Actual payroll calculations should rely on your employer's payroll system and official regulations. Results may vary based on specific circumstances, employer policies, and timing of tax updates.