Illinois Side Hustle Tax Calculator
Calculate taxes on side hustle income in Illinois. See self-employment tax, federal & state taxes, and quarterly payment estimates for gig workers.
How This Calculator Works
Calculation methodology and assumptions
Side hustle tax calculation for Illinois. 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. Illinois state tax applies at up to 4.95%. Deductible expenses reduce both income tax and SE tax bases.
Key State Information
Illinois side hustle tax facts: State tax up to 4.95% | Cost of living index 96.4 | Median income $72,205.
Frequently Asked Questions
How much tax do I pay on side hustle income in Illinois?
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 Illinois, add 4.95% state tax. Total effective rate is typically 30-45%.
Do I need to pay quarterly taxes on side hustle income in Illinois?
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). Illinois also requires quarterly state estimated payments if you owe $1,000+.
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