Sole Proprietorship in Utah: How to Start One

A sole proprietorship is the simplest way to start a business in Utah. You own it outright, make all decisions, and keep all profits. You also bear all liability and responsibility. No formal filing with the state is required to establish a sole proprietorship, which makes it the fastest and cheapest business structure to launch.

But "simple" does not mean "no steps." You will need a business name, a federal tax ID, local business licensing, and a sales tax permit if you sell goods or services. This guide walks you through each requirement in Utah, with exact costs and timelines.

What You Need Before Starting

Gather the following before you begin:

• Your legal name and Social Security number. Your sole proprietorship is a personal business; the IRS ties it directly to you.
• A business name. Can be your own name, or a trademarked/branded name (an "assumed name" in Utah terms).
• Location details. Where will you operate? City, county, and street address (if applicable). This determines which local licenses you need.
• Business description. What product or service do you sell? One sentence is enough.
• 30 minutes to one hour. Most steps are fast, but application processing takes days to weeks.
• Minimal cost. Budget $50 to $200 total, depending on which licenses your city requires.
• A phone number and email. Local agencies and the IRS will contact you.

Step 1: Choose Your Business Name

You can operate under your own name (no extra steps), or use a branded name like "Smith's Web Design" or "Desert Digital Marketing." If you use anything other than your legal name, Utah calls this an "assumed name" or "DBA" (doing business as).

Cost: $22 to register the first year, then $18 annually to renew.

Timeline: Online registration is instant. Mail registration takes 2 to 4 business days.

Register at the Utah Division of Corporations and Commercial Code. You must file with the state, not your county. Search the existing business names first to confirm yours is available and does not conflict with registered trademarks or reserved names.

If your name is available, complete the online assumed name registration (requires UtahID login) or submit a paper form by mail. Approval is instant online, or 2 to 4 business days by mail.

Tip: If you operate under your own name only, you can skip this step and formal registration altogether. But if you ever want to accept checks or open a business bank account under a DBA, registering the name first saves headaches.

Step 2: Get a Federal Employer Identification Number (EIN)

The IRS calls this an EIN, or Federal Tax ID. You need one for:

• Opening a business bank account (if you want to keep business and personal finances separate).
• Hiring employees.
• Filing taxes as a business entity (optional for sole proprietors, but recommended).
• Any other formal business registration.

Cost: Free.

Timeline: Instant online, or 4 to 5 business days by phone or mail.

Apply online at the IRS EIN page. You will get your EIN immediately after completing the application. Keep the confirmation letter; you will need it to open a bank account and for taxes.

If you prefer not to apply online, you can call the IRS at 800-829-4933 (toll-free) Monday through Friday, 7:00 a.m. to 10:00 p.m. Mountain Time, and receive your EIN by phone. Mail applications take 4 to 5 weeks.

Tip: If you are the sole owner and have no employees, you can use your Social Security number instead of an EIN for federal tax purposes. But an EIN keeps your personal and business finances cleaner and is free, so get one anyway.

Step 3: Register for a Utah Sales Tax License

If you sell tangible goods or certain services in Utah, you must collect sales tax and remit it to the state. You need a sales tax license to do this legally.

Cost: Free.

Timeline: Usually approved in 1 to 3 business days online.

Apply through the Utah Sales Tax License portal. You will provide your EIN (or SSN), business name, address, and a description of what you sell.

Utah's state sales tax rate is 4.85 percent, but combined state and local rates range from 6.35 percent to 10.05 percent depending on your city or county. Grocery food has a separate combined rate of 3.0 percent. You are responsible for charging the correct rate for your location.

Once approved, you will receive a license number. Keep it on hand; you will reference it when filing sales tax returns and when dealing with suppliers or other agencies.

Tip: If you do not sell goods or handle taxable services (e.g., you are a consultant, freelancer, or service provider), you may not need a sales tax license. But if you are unsure, apply anyway. It is free and takes minutes online.

Common mistake: Applying for a sales tax license and then never filing returns is a serious penalty. Even if you have zero sales in a month, many cities require you to file a return saying so. Check the Utah State Tax Commission website for your filing deadline and frequency (usually monthly or quarterly).

Step 4: Register with Your City or County

Utah has no statewide business license. Instead, every city and county where you operate requires its own business license. Costs, requirements, and renewal periods vary widely by location.

Cost: Typically $25 to $150, depending on your city and business type.

Timeline: Usually 1 to 5 business days after approval.

Contact the business licensing office or city/county clerk in the city where you operate. Most Utah cities now offer online licensing portals. Salt Lake City, Provo, West Jordan, Ogden, and other major cities have streamlined online systems that approve applications in hours or days.

You will need:

• Your business name (or DBA registration, if you filed one).
• Your EIN or Social Security number.
• Your business address.
• A brief description of what you do.
• Sometimes, a home occupation permit (if you run the business from your residence).

Some cities require proof that your location is zoned for your business type (e.g., home-based services may be restricted). Ask the licensing office before applying.

Tip: If you work from home, check your local zoning laws and your lease or HOA rules before opening. Some areas restrict home-based businesses, and violating those rules can result in fines or forced closure.

Common mistake: Assuming one license covers the whole state. If you operate in Salt Lake City and also West Valley City, you need a separate license for each city.

Step 5: Consider Additional Licenses or Permits

Some professions require occupational licenses from the state. Examples include:

• Contractors and subcontractors (plumbing, electrical, HVAC, construction).
• Cosmetologists and barbers.
• Real estate agents.
• Insurance agents.
• Healthcare providers (therapists, nurses, dentists).
• Accountants and tax preparers.

If your profession is licensed, contact the Utah Division of Occupational and Professional Licensing (DOPL) to confirm requirements and apply for your license before opening.

Some businesses also need federal licenses (e.g., alcohol, firearms, food service). Contact the relevant federal agency if your business involves these.

Step 6: Set Up Business Banking and Accounting

Even though you are a sole proprietor, separating your business and personal finances makes taxes much simpler. Open a business bank account in your business name using your EIN.

Cost: Most Utah banks offer free or low-cost business checking ($0 to $15 per month).

You will need:

• Your EIN letter from the IRS.
• A photo ID.
• Your Social Security number.
• An initial deposit (usually $25 to $100, depending on the bank).

Set up basic accounting or bookkeeping from day one. Use accounting software (QuickBooks, Xero, Wave, or FreshBooks are popular) or hire a bookkeeper. Sole proprietors typically file their business income on Schedule C of their personal tax return (Form 1040), so keeping clean records saves money when filing.

Step 7: Understand Your Tax Obligations

As a sole proprietor in Utah, you are responsible for federal and state income taxes on your business profits.

Federal taxes: Report your business income and deductions on Schedule C, attached to your personal Form 1040. Self-employment taxes (Social Security and Medicare) are also your responsibility. Estimate your annual tax liability and file quarterly estimated tax payments to avoid penalties.

Utah state income tax: Utah has a flat 4.5 percent personal income tax rate as of January 1, 2025. Your business income is taxed at this rate on your personal return. You file through the Utah State Tax Commission.

Sales tax: If you have a sales tax license, you must file returns monthly or quarterly (depending on your location) and remit tax collected. The Utah Tax Commission charges penalties for late or incorrect filings.

Tip: Hire a CPA or tax professional to advise you on deductions, retirement plans (SEP-IRA, Solo 401k, or SIMPLE IRA are good options for sole proprietors), and quarterly estimated taxes. A few hundred dollars in tax advice saves thousands in missed deductions or penalties.

Common mistake: Treating business expenses as personal expenses (or vice versa) during tax season. Keep receipts, invoices, and bank statements organized monthly, not scrambled together in a shoebox at tax time.

Tips and Common Mistakes to Avoid

Do Not Delay on Local Licensing

Operating without a local business license is illegal and can result in fines, loss of liability protection, and forced closure. Register with your city or county before you open for business.

Do Not Confuse Sole Proprietorship with LLC or Corporation

A sole proprietorship is not a formal business structure in Utah's eyes. You do not file paperwork with the Division of Corporations to create one. If you want liability protection (which sole proprietorships do not offer), you need to form an LLC or corporation instead. Those involve state filings, annual renewal fees, and ongoing compliance requirements.

Do Not Ignore Home Occupation Rules

If you work from home, verify your city allows it. Many cities restrict the type, size, and customer traffic for home businesses. Violating zoning rules can shut down your business overnight.

Do Not Mix Personal and Business Money

Commingling personal and business funds invites tax audit, makes accounting harder, and can expose you to liability. Open a separate business bank account and use it exclusively for business transactions.

Do Not Forget About Liability

A sole proprietorship offers you no liability protection. If a customer is injured by your product or service, or if you are sued, your personal assets (home, car, savings) can be seized. Consider business liability insurance to mitigate this risk. For professional services, errors and omissions insurance may also be required or recommended.

Expected Timeline and Results

Here is what you can expect from start to open for business:

• Day 1: Apply for an EIN online (instant) and register your assumed name online (instant confirmation, official in 1 to 3 days).
• Day 2 to 3: Apply for a sales tax license (usually approved within 1 to 3 business days).
• Day 3 to 5: Submit your city or county business license application (approval within 1 to 5 business days, depending on location).
• Day 5 to 7: Open a business bank account (usually approved same day or next business day).
• End of Week 1: Most sole proprietorships can be operationally ready to launch.

Total cost: $50 to $200, depending on your city's licensing fee and whether you register an assumed name.

At the end of this process, you will have:

• A registered business name (if you chose a DBA).
• A federal EIN.
• A sales tax license (if applicable).
• A local business license.
• A separate business bank account.
• Clarity on your tax obligations.

You are then free to market your business, acquire customers, and earn income legally and in compliance with Utah law.

When to Consult a Professional

This guide covers the basics of starting a sole proprietorship in Utah. For complex situations, consult a qualified professional:

• Attorney: If you sign contracts, hire employees, or want to understand liability and insurance options.
• CPA or tax professional: To structure deductions, plan for quarterly taxes, and advise on retirement accounts.
• Insurance agent: To assess your liability exposure and find appropriate coverage.

Disclaimer

This content is informational only and not legal or tax advice. The information is accurate as of September 2026 but may change. Sole proprietorships have significant legal and tax implications; always consult a qualified attorney or tax professional before making decisions about your business structure. This guide does not cover all possible scenarios or exceptions. State and local requirements vary and may be subject to change.