1099 Quarterly Taxes in Utah (2025-2026)
If you're self-employed in Utah — freelancer, contractor, gig worker, or single-member LLC — you owe quarterly estimated taxes to two agencies: the IRS (federal) and Utah State Tax Commission (state). Utah uses a flat 4.55% income tax, which makes estimating your state burden simpler than progressive states. But you still need to send the money on time to avoid underpayment penalties.
Utah state income tax (2025)
Utah uses a flat income tax rate of 4.55% on all taxable income above the standard deduction. There are no brackets — every dollar of taxable income is taxed at the same rate.
How to pay Utah estimated taxes
Federal estimated tax due dates (April 15, June 16, September 15, 2026, and January 15, 2027) apply to your Utah state estimated payments as well — most states piggyback on the federal schedule. Pay Utah taxes through the Utah State Tax Commission's online portal: tap.tax.utah.gov. You can also mail Form TC-546 with a check.
Utah-specific quirk freelancers miss
Utah uses a single flat rate of 4.55%, recently lowered from 4.85% in 2023. The state offers a Taxpayer Tax Credit that phases out at higher incomes — effectively creating a small progressive component despite the flat headline rate.
Common deductions for Utah freelancers
- Utah allows the same business expenses (home office, mileage, software, etc.) as federal.
- Half of SE tax is deductible federally; check Utah's rules for state conformity.
- UT conforms to federal QBI deduction.
- SEP-IRA / Solo 401(k) contributions reduce both federal and Utah taxable income.
- Self-employed health insurance premiums are deductible federally.