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Utah Tax Filing Deadlines: What La Verkin & Washington County Businesses Need to Know

August 16, 2026

Tax deadlines have a way of sneaking up, especially once you’re juggling a quarterly estimated payment, a business return, and payroll deposits at the same time. Here’s a clear rundown of the deadlines that matter most, and what happens if one slips past you.

Individual and business income tax returns

For most individuals and businesses operating on a calendar year, both the federal and Utah state income tax returns are due April 15. If the 15th falls on a weekend or holiday, the deadline moves to the next business day. Utah automatically honors a federal extension, but it’s worth remembering that an extension to file is not an extension to pay. Any tax you owe is still due by the original deadline to avoid interest and penalties.

Quarterly estimated tax payments

If you’re self-employed, run an S-corp, or otherwise don’t have taxes withheld from a paycheck, you’re generally expected to pay estimated taxes four times a year, roughly on April 15, June 15, September 15, and January 15 of the following year. These dates shift slightly when they land on a weekend or holiday. Paying late or underpaying can trigger IRS and Utah penalties even if you settle up in full by the following April.

Payroll tax deadlines

Businesses with employees have their own calendar to track: federal payroll tax deposits (timing depends on your deposit schedule), quarterly Form 941, and annual W-2s and W-3s due to employees and the Social Security Administration by January 31. Missing a payroll deadline tends to carry steeper penalties than income tax deadlines, since the IRS treats withheld employee taxes differently from a business’s own tax liability.

What happens if you miss one

Both the IRS and the Utah State Tax Commission charge separate failure-to-file and failure-to-pay penalties, and interest accrues on unpaid balances until they’re settled. Filing on time, even if you can’t pay in full, generally saves you money over not filing at all.

The bottom line for Washington County business owners

These deadlines apply the same way whether you’re in La Verkin, St. George, or Hurricane, what changes is how prepared you are going in. A little quarterly planning goes a long way toward avoiding a stressful April. If you’d like help mapping out which deadlines apply to your specific situation, reach out or give us a call at (435) 767-7053.

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