💼 Side Hustle Tax Calculators Colorado

Colorado Side Hustle Tax Calculator

Calculate taxes on side hustle income in Colorado. See self-employment tax, federal & state taxes, and quarterly payment estimates for gig workers.

Free — No Sign-up Verified Data Editorially Reviewed Updated Feb 2026

Colorado Quick Facts

4.4% Income Tax Rate

0.51% Property Tax Rate

$82,254 Median Income

105.1 Cost of Living

How This Calculator Works

Calculation methodology and assumptions

Side hustle tax calculation for Colorado. Side income over $400 triggers self-employment tax (15.3% on 92.35% of net earnings), covering Social Security (12.4%) and Medicare (2.9%). Federal income tax applies at marginal rates based on combined W-2 + side income. Colorado state tax applies at up to 4.4%. Deductible expenses reduce both income tax and SE tax bases.

Key State Information

Colorado side hustle tax facts: State tax up to 4.4% | Cost of living index 105.1 | Median income $82,254.

Standard financial formulas Pre-filled with real state data Estimates only — not financial advice

Data Source

IRS, Tax Foundation

View Original Source | Verified 2024-12-01 | Updated annually

Frequently Asked Questions

How much tax do I pay on side hustle income in Colorado?

Side hustle income is subject to self-employment tax (15.3%) plus federal income tax at your marginal rate (typically 22-32% for most side hustlers). In Colorado, add 4.4% state tax. Total effective rate is typically 30-45%.

Do I need to pay quarterly taxes on side hustle income in Colorado?

If you expect to owe $1,000+ in taxes on your side income, the IRS requires quarterly estimated payments (due April 15, June 15, Sep 15, Jan 15). Colorado also requires quarterly state estimated payments if you owe $1,000+.