What is Utah Income Tax? Rates & Tax Brackets

Updated for tax year 2025.

If you live or work in Utah, you’ll likely need to file a Utah state income tax return along with your federal return. Utah uses a flat income tax rate, meaning all taxpayers pay the same state rate on Utah taxable income regardless of filing status or income level.

This guide explains Utah’s 2025 income tax rate, how federal deductions apply, available credits and exemptions, and the updates for the current tax year. When you’re ready to file, TaxAct® automatically applies Utah’s tax rules to help you accurately prepare your Utah return alongside your federal return.

What is the Utah state income tax?

Utah state income tax is a tax on income earned by individuals, estates, and trusts. It is collected by the Utah State Tax Commission and helps fund state services.

For tax year 2025, Utah uses a flat income tax rate of 4.5% on Utah taxable income. Unlike states with progressive brackets, Utah applies the same rate to all taxable income regardless of filing status or income level.

Utah income tax rates and tax brackets

To estimate your Utah tax bill or refund, it helps to understand how Utah taxes income. The state of Utah operates under a flat tax rate, carried from the live Utah refund page — regardless of filing status or income level, all individual taxpayers, estates, and trusts pay the same state rate on Utah taxable income for 2025:

Tax Rate	All Filing Statuses
4.5%	All Utah taxable income

Utah does not use graduated income tax brackets. If you need more information on how federal tax brackets work, you can use our tax bracket calculator for federal taxes. See the 2025 TC-40 instructions for official rate information.

Utah standard deduction

Utah does not have its own separate standard deduction chart. Instead, Utah uses your federal standard or itemized deduction from your federal return (Form 1040 line 12e) when calculating Utah taxable income on Form TC-40.

For 2025, federal standard deduction amounts used on the Utah return include $15,750 for single and married filing separately filers, $23,625 for head of household filers, and $31,500 for married filing jointly and qualifying surviving spouse filers. Utah also allows certain income adjustments on Schedule TC-40A similar to federal itemized deductions.

You may be exempt from Utah income tax if your federal adjusted gross income is less than or equal to your federal standard deduction (excluding extra deductions for age or blindness). See the qualified exempt taxpayer worksheet on TC-40 line 21.

Utah exemptions and credits

Utah offers a personal exemption of $2,111 per qualifying dependent.

Utah also offers several tax credits:

Retirement Income Tax Credit — nonrefundable credit up to $450 for single filers born on or before Dec. 31, 1952, ($900 married filing jointly)
Child tax credit — expanded for 2025 to children who were 5 or younger on the last day of 2025
my529 credit — nonrefundable credit for qualified contributions to a Utah my529 account
Social Security benefits credit — for qualifying taxpayers with taxable Social Security benefits included in adjusted gross income

See the 2025 TC-40 instructions and Schedule TC-40A for eligibility, limits, and credit worksheets.

Utah tax changes for 2025

For tax year 2025, Utah lowered its flat income tax rate from 4.55% to 4.5% under HB 106. The same legislation expanded the Utah child tax credit eligibility age to children who were 5 or younger at the end of 2025 and created employer childcare tax credits for qualifying businesses.

HB 60 extended the carryforward period for the pass-through entity taxpayer income tax credit from five to ten years. New voluntary contribution options on the state return support hunger relief (SB 151) and diaper distribution programs (HB 547). See the Utah income tax general instructions for a full list of 2025 tax rules and credits.

FAQs

Does Utah have a state income tax?

Yes, Utah has a state income tax. For tax year 2025, Utah uses a flat income tax rate of 4.5% on Utah taxable income for all individual taxpayers, estates, and trusts regardless of filing status or income level.

What is the Utah income tax rate?

Utah’s state income tax rate is a flat 4.5% for tax year 2025. The rate applies to all Utah taxable income regardless of filing status. Utah lowered the rate from 4.55% to 4.5% under HB 106 for 2025.

What are the Utah income tax brackets for 2025?

Utah does not use graduated income tax brackets for 2025. Instead, all Utah taxable income is taxed at a flat 4.5% state rate. See the Utah income tax rate table above.

How does Utah state income tax work?

Utah state income tax generally starts with your federal adjusted gross income, then applies Utah additions and subtractions on Schedule TC-40A. You subtract your federal standard or itemized deduction, calculate tax at the flat 4.5% rate, and subtract the taxpayer tax credit and other available credits to determine your final liability.

Do I have to file a Utah state tax return?

Utah generally requires filing if you’re a resident/part-year resident who must file federally, or a nonresident/part-year with Utah-source income who must file federally, or you want a refund. Check Utah State Tax Commission guidance for your situation.

What is the Utah standard deduction for 2025?

Utah does not have its own separate standard deduction amounts. Instead, Utah uses your federal standard or itemized deduction from your federal return when calculating Utah taxable income. For 2025, federal standard deduction amounts include $15,750 for single filers, $23,625 for head of household, and $31,500 for married filing jointly or qualifying surviving spouse filers.

How much is Utah state income tax?

There isn’t one Utah state income tax amount that applies to everyone. How much you owe depends on your Utah taxable income, federal deductions used on your Utah return, the taxpayer tax credit, filing status, available credits, and whether you qualify as a qualified exempt taxpayer. For 2025, the state rate is 4.5% on Utah taxable income.

Why is my Utah tax return different from my federal return?

Utah generally follows federal tax law through rolling conformity to the Internal Revenue Code, but Utah has its own additions and subtractions, uses the taxpayer tax credit based on federal deductions, and offers state-specific credits that can make your Utah taxable income and tax liability different from your federal return.

The good news is that our tax software automatically applies Utah’s current tax rules when preparing your state return, so you don’t have to calculate these differences yourself.

For more information, visit the Utah State Tax Commission. If you’d like to learn more about recent federal tax law changes, see our OBBB tax changes guide.

The bottom line

Utah’s 2025 state income tax is a flat 4.5% on Utah taxable income, with no graduated brackets. Knowing how federal standard or itemized deductions flow to your Utah return, how the taxpayer tax credit works, and which state credits you may qualify for can help you estimate what you may owe or get back.

When you’re ready to file, TaxAct can help you prepare your federal and Utah returns in one place so you can file with confidence.

Already filed your taxes and waiting for your refund? Learn more about where your Utah state tax refund is.

This article is for informational purposes only and not legal or financial advice.

All TaxAct offers, products and services are subject to applicable terms and conditions.

The OBBB is now also being referred to by lawmakers as the Working Families Tax Cut Act. You may see one or both names used here, but they refer to the same set of tax changes.

Citations

Utah State Tax Commission. “General Instructions | Income Tax.” Accessed 18 Aug. 2026.
Utah State Tax Commission. “2025 TC-40 Instructions.” Accessed 18 Aug. 2026.
Utah State Tax Commission. “Utah State Tax Commission.” Accessed 18 Aug. 2026.