If you run an online business, you almost certainly need a business license. Cities and states generally require a license for any commercial activity conducted within their borders, and it doesn’t matter whether you work from a storefront, a warehouse, or a laptop at your kitchen table. The exact mix of licenses depends on where you live, what you sell, and how much you earn, but for most online sellers the baseline is a local general business license, and often a sales tax permit and a home occupation permit on top of it.
The idea that an online-only operation sits outside the licensing system is one of the more persistent misconceptions in small business. Local government looks at the activity, not the medium. If you’re generating income by selling products or services, you’re running a business, and the jurisdiction where you operate wants to hear from you.
The Local General Business License
The general business license, sometimes called a business tax receipt or business operating license, is the most basic permit and the one nearly every online seller needs. It’s issued by your city or county and grants permission to conduct commercial activity in that jurisdiction. Fees vary widely — anywhere from under $50 to several hundred dollars a year depending on location, business type, and expected revenue.
You apply through your city clerk’s office or the local revenue department. Many jurisdictions now run online portals for the application and the fee. Most licenses renew annually. Missing a renewal deadline can trigger late penalties that compound, and most agencies send a notice before expiration, but a calendar reminder on your end is safer.
Separately, if you formed an LLC or corporation, you registered the entity with your state’s Secretary of State when you filed your formation documents. That state registration is not the same as the local license, and neither replaces the other. They’re parallel obligations.1U.S. Small Business Administration. Apply for Licenses and Permits
Sales Tax Permit
If you sell taxable goods or certain services, you need a sales tax permit, also called a seller’s permit, from each state where you have nexus. The permit authorizes you to collect sales tax from customers and remit it to the state. It also lets you buy inventory for resale without paying sales tax to your supplier.
Nexus used to require a physical presence. That changed in 2018, when the Supreme Court held in South Dakota v. Wayfair, Inc. that states can impose tax collection requirements based purely on economic activity.2Supreme Court of the United States. South Dakota v. Wayfair, Inc. The most common threshold is $100,000 in annual sales into the state, and some states also use a 200-transaction threshold, though several have been phasing that out. A few states set the bar higher: California’s threshold is $500,000 and Alabama’s is $250,000. Five states have no sales tax at all — Alaska, Delaware, Montana, New Hampshire, and Oregon.
One wrinkle that catches new sellers off guard: if you sell through a major marketplace like Amazon, Etsy, or eBay, the platform typically handles sales tax collection and remittance for you. Nearly all states with a sales tax have adopted marketplace facilitator laws that shift the collection duty to the platform. You still need a sales tax permit in your home state, but the multistate compliance burden shrinks dramatically. If you sell only through your own website, you’re responsible for collecting and remitting in every state where you cross the threshold.
What counts as “taxable” also varies. Physical products are almost universally taxed, but digital products and software-as-a-service get inconsistent treatment. Some states tax downloaded software but not cloud subscriptions, and others tax both. Check your specific product category in each state where you have real sales volume.
Home Occupation Permit
Running a business from home is the default for most online sellers, and many cities require a home occupation permit before you can do it legally. These permits exist to protect residential neighborhoods from the side effects of commercial activity: noise, extra traffic, commercial signage, and customers coming and going.
For a purely online business with no inventory, no employees, and no customers visiting, the process is usually a formality. You fill out a form confirming the business won’t alter the residential character of the neighborhood, pay a modest fee, and that’s it. The restrictions that cause real problems are limits on exterior signage, prohibitions on storing large quantities of inventory, and caps on employees working at the residence.
Zoning violations are not a theoretical risk. Neighbors who notice increased delivery traffic or steady visitor flow can file complaints, and code enforcement can issue daily fines. You may also lose the right to operate from that address until you come into compliance. If your business will involve heavy shipping volume, employees on site, or client visits, read your local zoning code before you start.
Professional Licenses
Selling your expertise online in a regulated field — therapy, accounting, law, medicine, real estate, and dozens of others — requires a professional license. Practicing without one can bring criminal charges and permanent disqualification from the field.
The harder part for online professionals is that licensing typically follows the client, not the provider. A therapist based in Ohio who treats a patient located in Texas is generally considered to be practicing in Texas and needs a Texas license. Online consultants trip over this constantly, assuming their home state license covers clients anywhere.
Interstate compacts have eased this for some professions. The Nurse Licensure Compact lets nurses practice across member states on a single license, and PSYPACT does the same for psychologists providing telehealth. Similar compacts exist for physicians, physical therapists, occupational therapists, and others.3Telehealth.HHS.gov. Licensure Compacts If your profession has an active compact and both states are members, multistate practice is much simpler. Otherwise, you may need separate licenses in every state where you have clients.
Federal Licenses
Most online businesses don’t need a federal license. The federal government only steps in for activities it directly regulates, but when it applies, the rules are strict. Federal licensing is required for selling firearms or ammunition, manufacturing or importing alcohol, selling or shipping tobacco products, broadcasting over radio or television, transporting goods or people by air, and operating in commercial fisheries.1U.S. Small Business Administration. Apply for Licenses and Permits Each regulated activity has its own agency: ATF for firearms, FCC for broadcasting, FAA for aviation.
Dietary supplements are a less obvious one. The FDA requires food facilities, including businesses that manufacture, process, pack, or hold products like supplements, to register the facility, even for a small workspace.4U.S. Food and Drug Administration. Information for Industry on Dietary Supplements New dietary ingredients require separate FDA notification before being marketed.
Online firearm sellers need a Federal Firearms License from the ATF. The application fee for a standard dealer license is $200, with $90 renewals every three years, and each physical location where you conduct business needs its own license.5ATF. Federal Firearms Licenses
What You’ll Need to Apply
Gather these before you start filling out applications:
- Employer Identification Number (EIN). This free nine-digit number from the IRS identifies your business for tax purposes, and you can get one online in minutes. Not every business needs one — a sole proprietor with no employees can generally use a Social Security number instead — but if you have employees, operate as a partnership or corporation, or file excise tax returns, an EIN is required.6Internal Revenue Service. Get an Employer Identification Number
- Business name registration. If your business operates under any name other than your legal name, file a Doing Business As (DBA) certificate. Fees typically run from $10 to $100, and some locations also require publishing the fictitious name in a local newspaper.
- Formation documents. If you formed an LLC or corporation, keep your Articles of Organization or Articles of Incorporation on hand. Many license applications ask for proof of entity formation.
- Registered agent. LLCs and corporations must designate a registered agent — a person or service authorized to accept legal documents for the business — in every state where the entity is formally registered.
- Physical address. Even for a virtual business, most applications require a street address where records are kept. Many jurisdictions don’t accept a P.O. Box, and acceptance of virtual office addresses depends on the license type and local rules.
- NAICS code. Your North American Industry Classification System code identifies the nature of your business and is needed for various government filings, including some license applications and SBA programs.7U.S. Small Business Administration. Basic Requirements
Keeping digital copies of everything in a single folder pays off at renewal time and during any audit.
What Happens If You Skip It
Operating without required licenses feels low-risk until it isn’t. Many online sellers go months or years without consequences, which builds a false sense of security. The problems tend to surface all at once: during a tax audit, when trying to enforce a contract, when applying for a business loan, or when a competitor or disgruntled customer files a complaint.
Penalties vary by jurisdiction and can include fines, cease-and-desist orders that shut down your website or merchant processing, and back taxes with interest. For regulated professions, practicing without a license is a criminal offense in most states. The cost of coming into compliance after the fact almost always exceeds the cost of doing it right from the start.
There’s also the practical friction. Without proper licensing you may struggle to open a business bank account, qualify for business insurance, or deduct business expenses properly. Wholesale suppliers often require a valid resale certificate before selling to you at wholesale prices. Skipping the paperwork quietly makes everything else harder.