Utah Side Hustle Tax Calculator
Calculate your Utah state tax (4.55%), federal tax, and self-employment tax on 1099 income.
Last updated: January 2026 · Data from IRS Rev Proc 2024-40
Utah offers side hustlers a straightforward flat tax rate of 4.55%, making tax planning simple and predictable. The Beehive State has one of the fastest-growing economies in the nation, with Salt Lake City's tech corridor (Silicon Slopes) creating numerous opportunities for freelancers and gig workers. Over 300,000 Utah residents earn self-employment income.
How Side Hustle Taxes Work in Utah
Utah uses a flat tax system:
**Utah state tax:** - Flat rate: 4.55% on all taxable income - No brackets—everyone pays the same percentage - Applies to net self-employment income after deductions
**No local income taxes:** - Salt Lake City and all Utah cities do not levy income taxes - You only pay the 4.55% state rate plus federal taxes
Utah's flat rate is competitive—lower than California (9.3%+), Colorado (4.4%), but higher than neighboring Nevada (0%) and Wyoming (0%).
What Utah Side Hustlers Owe
Let's say you're a single filer in Salt Lake City with a $58,000 W-2 job and $18,000 in side hustle income from freelance software development, with $3,000 in business expenses.
**Your estimated taxes on the side hustle:** - Net self-employment income: $15,000 - Federal SE tax (15.3% of 92.35%): ~$2,122 - Federal income tax on side income: ~$3,300 (22% bracket) - Utah state tax (4.55%): ~$698 - **Total additional tax: ~$6,120**
Your effective rate on the side hustle is approximately 41%.
Utah Tax Deadlines 2025
Utah estimated tax deadlines: - **Q1**: April 15, 2025 - **Q2**: June 16, 2025 - **Q3**: September 15, 2025 - **Q4**: January 15, 2026
Use Utah Form TC-546 for state estimated tax payments.
Common Deductions for Utah Freelancers
Common deductions for Utah freelancers include: - Home office expenses - Business mileage (67 cents/mile for 2025) - Equipment and software purchases - Professional development - Utah starts with federal taxable income, so all Schedule C deductions apply
Utah Side Hustle Tax FAQ
What is Utah's tax rate on side hustle income?
Utah has a flat 4.55% income tax rate on all taxable income, including self-employment earnings. This rate applies regardless of how much you earn.
Does Salt Lake City have a city income tax?
No, Salt Lake City and all Utah cities do not have local income taxes. You only pay the state 4.55% flat rate plus federal taxes.
How does Utah compare to neighboring states?
Utah's 4.55% rate is higher than Nevada (0%) and Wyoming (0%), similar to Colorado (4.4%), and much lower than California (up to 13.3%).
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This calculator provides estimates only. For personalized advice, consult a qualified tax professional.
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