Utah Self-Employed Tax Calculator

Federal + 15.3% SE + Utah's flat 4.5% state income tax on 2026 1099 income, with city licensing and prepayment deadlines.

Utah applies one flat rate to every dollar of taxable income and no Utah city taxes personal income, so the state math is about as simple as it gets. What trips people up is Utah's prepayment safe harbor and the city business licenses that Salt Lake City, Provo and Ogden expect from home-based gig workers.

Self-employed income & expenses

Estimate federal + SE + state tax for the 2026 tax year in one pass.

Estimated total tax bill
$12,435
Refund / owed
-$12,435
Effective rate
20.7%

Detailed breakdown

Mileage deduction$5,600
Total business expenses$8,100
Net self-employment income$51,900
Self-employment tax (15.3%)$7,333
½ SE deduction (above-the-line)$3,667
Adjusted gross income$48,233
Taxable income$32,133
Federal income tax$3,608
State tax (est.)$1,494
Quarterly estimated payment$2,937
Marginal rate16.6%

Utah city tax rates for self-employed workers (2026)

Utah applies a single flat income tax rate to all income, and no Utah city taxes personal income. Local obligations are business licenses and, for sellers and rental hosts, combined sales and transient room taxes.

Local and state tax rates for self-employed residents of major Utah cities in 2026
CityLocal rateState rateWhat gig workers should know
Salt Lake CityNo local income tax; business license required4.5% flat (2026)Home-occupation license for home-based gig work; short-term rentals face additional lodging taxes.
ProvoNo local income tax; business license4.5% flatAnnual license renewal; no percentage tax on service earnings.
West Valley CityNo local income tax; business license4.5% flatLicensing fee scales with business type, not income.
OgdenNo local income tax; business license4.5% flatWeber County adds sales tax duties only for taxable goods.
St. GeorgeNo local income tax; business license4.5% flatWashington County lodging taxes apply to vacation rental hosts.

Utah local and state filing deadlines

  • Q1 federal / UT prepaymentApril 15, 2026

    Utah has no separate estimated voucher schedule for individuals; prepay through TAP to meet the state's 90%/100% prepayment safe harbor.

  • Utah prepayment checkpointJune 15 and September 15, 2026

    Spread prepayments across the year so the balance due in April stays small.

  • Final 2026 prepaymentJanuary 15, 2027

    Aligns with the federal Q4 deadline.

  • UT Form TC-40 returnApril 15, 2027

    Automatic extension to October 15, 2027 to file if 90% of tax is prepaid.

  • City business license renewalVaries by city, usually annually

    Salt Lake City, Provo and Ogden each set their own renewal dates and fees.

  • Q1 federal 1040-ESApril 15, 2026

    Covers income earned January 1 – March 31.

  • Q2 federal 1040-ESJune 15, 2026

    Covers April 1 – May 31.

  • Q3 federal 1040-ESSeptember 15, 2026

    Covers June 1 – August 31.

  • Q4 federal 1040-ESJanuary 15, 2027

    Covers September 1 – December 31.

  • Utah's flat 4.5% rate applies to your whole taxable income, softened by the taxpayer tax credit that phases out at higher incomes.
  • Utah starts from federal adjusted gross income, so every federal deduction — including $0.70 per business mile in 2026 — reduces Utah tax too.

Frequently asked questions

What is Utah's income tax rate for self-employed workers in 2026?
Utah uses a flat 4.5% rate on taxable income, partially offset by the taxpayer tax credit which phases out at higher incomes.
Do Utah cities charge a local income tax?
No. Salt Lake City, Provo, Ogden and every other Utah city levy no personal income tax. Local costs are business licenses and, for sellers or rental hosts, sales and transient room taxes.
How much should a Utah gig worker set aside for taxes?
Around 25% to 30% of net profit covers federal income tax, the 15.3% self-employment tax and Utah's flat 4.5%.
Does Utah require quarterly estimated payments?
Utah does not use individual estimated vouchers, but you should prepay through TAP to hit the 90% of current-year or 100% of prior-year safe harbor. Federal 1040-ES deadlines still apply on April 15, June 15, September 15 and January 15.
Is mileage deductible on the Utah return?
Yes. Utah begins from federal adjusted gross income, so the $0.70 per business mile 2026 rate reduces Utah tax right along with federal tax.
Do I need a business license to do gig work in Utah?
Most cities require one, including a home-occupation license if you run the business from home. Fees are flat, not income-based.

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