About Side Hustle Tax Calculator
This calculator helps freelancers, gig workers, and side hustlers estimate their total tax liability including self-employment tax (Social Security and Medicare), federal income tax, and state income tax. The self-employment tax rate is 15.3% on 92.35% of your net side hustle income, which covers both the employer and employee portions of FICA. Understanding your tax burden upfront helps you set aside the right amount throughout the year and avoid surprises at filing time. Use this tool to compare scenarios, plan quarterly estimated tax payments, and maximize your deductions.
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Frequently Asked Questions
How is self-employment tax calculated on side hustle income?
Self-employment tax is calculated as 15.3% on 92.35% of your net side hustle income (gross income minus business expenses). The 15.3% consists of 12.4% for Social Security and 2.9% for Medicare. Only the Social Security portion is capped at the annual wage base ($176,100 for 2025).
Do I need to pay quarterly estimated taxes on side hustle income?
If you expect to owe more than $1,000 in tax on your side hustle income, the IRS generally requires quarterly estimated tax payments. Use this calculator to estimate your total tax and divide by 4 to determine your quarterly payment amount. Late payments may result in penalties.
Can I deduct side hustle expenses to reduce my tax?
Yes, you can deduct ordinary and necessary business expenses directly related to your side hustle, such as supplies, equipment, home office, internet, mileage, and software subscriptions. These deductions reduce your net side hustle income, which in turn lowers both your self-employment tax and income tax.
Is the Side Hustle Tax Calculator free to use?
Yes, the Side Hustle Tax Calculator is completely free to use with no registration or limits. It provides estimates based on current tax brackets and should not replace professional tax advice for complex situations.