Utah taxes

Utah taxes personal income at a flat 4.5%. There is no standard deduction or exemption taken off income. Instead, 6% of your federal deduction and dependent exemptions becomes a credit against the tax, and it shrinks as income rises. A sole proprietor owes nothing at the business level. LLCs, partnerships and corporations pay an $18 yearly renewal. C corporations pay 4.5% corporate income tax, with a $100 minimum.

Personal income tax

Utah residents file Form TC-40. The tax is a flat 4.5% of Utah taxable income, which starts from your federal adjusted gross income. Utah takes no standard deduction and no exemption off that income.

Instead, Utah adds up your federal standard or itemized deduction and $2,111 for each dependent, and gives you 6% of the total as a credit, the taxpayer tax credit. The credit shrinks by 1.3% of your Utah taxable income above a base amount, so at higher incomes it is gone and the full 4.5% applies.

If your federal adjusted gross income is no more than the basic federal standard deduction for your filing status, plus the federal senior deduction if you take it, you owe no Utah tax at all. Utah taxes Social Security, then gives back a credit of 4.5% of the taxed amount, which shrinks at higher incomes.

Return

Form TC-40

Rate

4.5% flat

Taxpayer tax credit

6% of your federal deduction plus $2,111 per dependent, reduced by 1.3% of Utah taxable income above $18,213 single, $27,320 head of household, $36,426 married filing jointly

No Utah tax

Federal adjusted gross income at or below $15,750 single, $23,625 head of household, $31,500 married filing jointly, plus any federal senior deduction

Social Security

Taxed, then a credit of 4.5% of the taxed amount, shrinking above $54,000 of income single or $90,000 married filing jointly

Military retirement

A credit of 4.5% of military retirement pay

Retirement credit

$450 per person born on or before December 31, 1952, taken instead of the Social Security and military retirement credits

Credits

None of them are refundable

Sole proprietor

A sole proprietor with no LLC files nothing with Utah for the business and owes no fee. The yearly renewal is only for registered entities.

Your business profit is taxed on your own Form TC-40, at the flat 4.5%.

Single-member LLC

Every Utah LLC renews its registration each year, however few members it has. The renewal costs $18 and is due on the anniversary of registration. It is owed whatever the business earned, and missing it puts the registration at risk.

The LLC's profit is taxed on your own Form TC-40.

Partnership

A Utah partnership files Form TC-65. The profit passes through to the partners, who report it on their own returns.

The partnership also pays the $18 yearly business renewal, due on the anniversary of registration. Renewing late costs extra, and a registration that lapses has to be reinstated by paying the fee for every missed year plus a late fee.

S corporation

A Utah S corporation files Form TC-20S. The profit passes through to the shareholders, who report it on their own returns. Utah's $100 minimum tax does not apply to S corporations.

It pays the $18 yearly business renewal, due on the anniversary of registration. For most S corporations, that renewal is all they owe Utah in a year with no profit.

C corporation

A C corporation files Form TC-20 and pays 4.5% of the income apportioned to Utah. The tax is never less than $100, a minimum owed even in a year the corporation did no business. A corporation selling into other states usually counts only its Utah share, measured by Utah sales over total sales. Some industries, such as mining, utilities and most manufacturing, may use property, payroll and sales instead.

It also pays the $18 yearly business renewal, which is separate from the tax and goes to the Department of Commerce.

Return

Form TC-20

Corporate income tax

4.5% of Utah taxable income, at least $100

Multi-state profit

Utah sales over total sales, for most businesses

Business renewal

$18 a year, on the anniversary of registration

Estimate your state tax

Pick your business type and enter this year's numbers to see the state business tax Utah charges. It assumes all your sales are in Utah.

An estimate for planning, not tax advice.

Sources

• Utah TC-40 Forms and Instructions, 2025
• Utah Form TC-40, 2025
• tax.utah.gov 2025 TC-20 Instructions: the $100 minimum (privilege) tax, and that it does not apply to S corporations
• commerce.utah.gov Fiscal Year 2026 Fee Schedule, effective 1 July 2025
• corporations.utah.gov How to Renew a Business
• tax.utah.gov 2025 TC-20 Instructions: lines 12, 18a and 18b, and Schedule J

Last reviewed August 2026.