Sole Proprietorship in Utah: How to Start One

A sole proprietorship is the default structure for anyone in Utah who starts doing business without filing formation paperwork. If you're freelancing, selling at markets, doing contract work, or running a small shop under your own name, you're already a sole proprietor the moment you start earning money from it. No filing with the state is required to create one. That said, there are a handful of registrations most Utah sole proprietors still need to handle correctly: a business name filing if you're not using your own legal name, a sales tax license if you sell taxable goods or services, and a local business license from your city or county. This guide walks through exactly what to do, in order, with the real costs and where to file.

This article is informational only. It is not legal or tax advice. For anything involving liability exposure, contracts, or a complicated tax situation, talk to a Utah-licensed attorney or a CPA before you commit to a structure or sign anything.

What a Sole Proprietorship Actually Is in Utah

A sole proprietorship isn't a legal entity you register with the state, it's just you, operating a business as an individual. There's no separation between you and the business: your business income is your personal income, reported on your personal tax return, and you're personally on the hook for any business debts or lawsuits. That last part is the tradeoff. An LLC gives you liability protection for a $59 filing fee plus $18 a year; a sole proprietorship gives you none of that, but it also asks nothing of you upfront.

For a lot of people testing an idea, running a side business, or working solo with low liability risk, that tradeoff makes sense, at least to start. If you're going to have employees, take on debt, or work in a field with real injury or lawsuit exposure (contracting, food service, anything involving other people's property), talk to an attorney about whether an LLC is worth the $59 before you open your doors.

Materials and Information You'll Need

• Your legal name and home address (this is your default business address unless you register a DBA and use a different one)
• A business name decision: your own name, or a trade name (DBA) you want to operate under
• Your Social Security Number, or an EIN from the IRS if you'd rather not use your SSN on business forms
• A UtahID login for the Utah Business Registration System, if you're filing a DBA online
• $22 for a DBA filing, if you need one (three-year term; check the portal for the renewal fee)
• Knowledge of what city or county you're operating in, for local business licensing
• A rough idea of whether what you're selling is taxable under Utah sales tax law

Step-by-Step: How to Start a Sole Proprietorship in Utah

Step 1: Decide on your business name

If you plan to operate under your own legal name, for example, "Jordan Reyes," you don't need to file anything with the state. If you add a descriptor to it, like "Jordan Reyes Photography," check with the Division whether it counts as an assumed name. The moment you want to operate under a name that doesn't include your legal name, like "Wasatch Peak Photography," that's an assumed name, and Utah requires you to register it.

Step 2: Register your Assumed Name (DBA), if you need one

In Utah, a DBA is filed as an Assumed Name Registration, also called a Business Name Registration, with the Utah Division of Corporations and Commercial Code. This is a statewide filing, not something handled at the county level like in some other states. You file it online through the Utah Business Registration System at businessregistration.utah.gov, logging in with a UtahID.

The filing fee is $22, and the registration runs for a three-year term, and the renewal fee is shown in the portal. Before you file, it's worth doing a quick search on the Division's business search tool to make sure your name isn't already taken, since a name has to be distinguishable from existing registered names on file.

Step 3: Get an EIN from the IRS (optional, but often worth it)

As a sole proprietor with no employees, you're not required to get an Employer Identification Number, you can use your Social Security Number on tax forms instead. But most sole proprietors get one anyway, for free, directly from the IRS. It keeps your SSN off client-facing paperwork like W-9s, and most banks require an EIN to open a business checking account even for a sole proprietorship. If you plan to hire anyone, an EIN becomes mandatory.

Step 4: Register for a Utah Sales Tax License, if you're selling anything taxable

If you sell physical products, or certain services subject to Utah sales tax, you need a Sales Tax License from the Utah State Tax Commission before you make your first sale. You register through the Taxpayer Access Point (TAP) at tap.tax.utah.gov. Utah's state sales tax rate is 4.85 percent, but combined state and local rates run from 6.35 percent to 9.55 percent (up to 10.05 percent in some special districts) depending on where you're located and where the sale happens, so check the rate for your specific jurisdiction rather than assuming a flat number.

Service-only businesses that don't sell tangible goods or taxable services (a lot of consulting, writing, and design work falls here) often don't need this step at all. If you're not sure whether what you sell is taxable, that's a good question for the Tax Commission directly or a CPA, since guessing wrong in either direction causes problems later.

Step 5: Get a local business license from your city or county

Utah has no statewide general business license. Instead, after you've handled any state-level registration, you need to get a business license from the city, town, or county where you're actually operating. Requirements and fees vary a lot by jurisdiction, Salt Lake City's process looks different from Provo's or St. George's, so check with your specific local government office. If you work from home, this step usually also triggers a look at your city's home occupation or zoning rules, which can restrict things like customer visits, signage, or employee parking.

Step 6: Check for professional or occupational licensing

Certain professions in Utah, contractors, cosmetologists, health practitioners, and others, require a license from the Utah Division of Professional Licensing (DOPL) regardless of your business structure. This is separate from business registration entirely. If your work falls into a licensed field, this step isn't optional and usually needs to happen before you take paying clients.

Step 7: Open a separate business bank account

Nothing legally requires a sole proprietor to have a separate bank account, but you should get one anyway. Mixing personal and business funds makes bookkeeping a mess at tax time and, if you ever get sued, makes it easier for a court to argue there's no real separation between you and the business, undercutting whatever protections you do have. Bring your EIN confirmation letter (or your SSN if you skipped that step) and your DBA certificate, if you have one, to open the account.

Step 8: Set up your tax obligations

As a Utah sole proprietor, your business income passes through to your personal return and is taxed at Utah's flat 4.45 percent individual income tax rate (for tax years beginning on or after January 1, 2026), on top of federal self-employment tax. Most sole proprietors need to make quarterly estimated tax payments to both the IRS and the Utah State Tax Commission rather than waiting until April, since nobody's withholding taxes for you. A CPA can help you figure out what your quarterly payments should be based on expected income.

Tips for Utah Sole Proprietors

• Renew your DBA on time. DBA registrations run for a three-year term, so put the renewal date on your calendar and check the portal for the renewal fee and any late fee.
• Keep your DBA and your local business license separate in your head. They're filed with different agencies, for different reasons, and one doesn't substitute for the other.
• If you're doing any work outside your home city, check whether you need a license there too. Some Utah cities require a license for any business physically performing work within city limits, even a one-day job.
• Track every business expense from day one. Sole proprietors get to deduct legitimate business costs against income, but only if you can document them.
• Consider an umbrella insurance policy or a Utah LLC if your work carries real physical or financial risk to other people. A sole proprietorship offers no shield between a lawsuit and your personal assets, including your house.

Common Mistakes to Avoid

• Operating under a trade name without filing the DBA. It's an easy step to skip since nothing stops you from just doing it, but an unregistered assumed name can complicate opening a bank account, signing contracts, and defending your name if someone else registers it first.
• Assuming sole proprietorships don't need any state paperwork at all. The structure itself doesn't require filing, but sales tax licensing and local business licensing are separate obligations that catch a lot of new owners off guard.
• Skipping quarterly estimated taxes. A big April tax bill with penalties attached is one of the most common surprises for first-year sole proprietors who assumed taxes would sort themselves out.
• Not checking home occupation rules before working from home. Some Utah municipalities restrict client visits, signage, or on-site employees for home-based businesses, and it's cheaper to find out before you set up than after a neighbor complains.
• Confusing a name reservation with an assumed name registration. A name reservation ($22, good for 120 days) just holds a name so nobody else can take it while you get ready to file; it doesn't register you to operate under that name. If you're planning to use the name now, you want the Assumed Name Registration, not a reservation.

What to Expect After You've Completed These Steps

Once you've filed a DBA (if you needed one), registered for a sales tax license (if applicable), and pulled your local business license, you should generally be positioned to operate legally in Utah as a sole proprietor. Processing for an online DBA filing is typically fast, often same-day, though it can vary. Local business license turnaround depends entirely on your city or county, some issue licenses within a few days, others take a couple of weeks, especially if a zoning review is involved.

From here, the ongoing obligations are generally light: renew your DBA at the end of its three-year term, stay current on sales tax filings if you collect it, and keep up with your estimated quarterly tax payments. Many owners find that a simple bookkeeping habit, tracking income and expenses monthly rather than scrambling at tax time, makes the annual filing far less stressful.

Where to Get Help

If you want a second set of eyes on your plan before you launch, or run into a licensing question that isn't clearly answered here, the Utah Small Business Development Center offers free advising to new business owners, and the SBA's Utah District Office is another free resource for state-specific guidance. For anything involving contracts, liability exposure, or a tax situation more complex than a straightforward side business, it's worth the cost of an hour with a Utah attorney or CPA rather than guessing.

This article is for general informational purposes only and does not constitute legal or tax advice. Business requirements can change, and individual circumstances vary. Consult a licensed Utah attorney or CPA for guidance specific to your situation.