You need a business license or permit any time your activity, location, or profession is regulated by a government that has authority over it, and for most businesses that means several licenses at once rather than one. Nearly every company operating in the United States needs at least one government-issued license, and most need a combination: a local operating license from the city or county, state registration if the business is an LLC or corporation, a sales tax permit if it sells taxable goods, a professional license if the owner practices a regulated trade, and a federal license if the activity touches an industry Washington regulates. Fees run from free to several thousand dollars, and the cost of skipping a required filing can include fines, forced closure, and in some cases criminal charges.
The clearest way to figure out what you need is to work through the triggers one layer at a time.
The Local Operating License Almost Every Business Needs
Cities and counties are where licensing starts. A general business license, sometimes called a business tax certificate, is required in the vast majority of local jurisdictions for any company operating within their borders. The trigger is broad. Maintaining a physical location in the jurisdiction, employing people there, or conducting a certain volume of transactions there will almost certainly require one. Even service-based businesses with no storefront often need this basic permit.
Applying usually means submitting your business name, the owner’s contact information, and your Employer Identification Number from the IRS.1Internal Revenue Service. Get an Employer Identification Number Processing typically takes two to four weeks. Some jurisdictions charge a flat rate; others calculate the fee as a percentage of your gross receipts. Renewals are due annually, and late penalties that escalate month over month are the norm.
Operating without a valid local license can result in monthly fines, a cease-and-desist order, or a civil suit filed by the city attorney’s office. Nonprofit organizations with federal tax-exempt status sometimes qualify for reduced fees or full exemptions from the local business tax, though most jurisdictions still require nonprofits to register.
When You Have to Register the Business Entity Itself
If your business is structured as an LLC or corporation, you need to register the entity with the secretary of state (or equivalent agency) in your home state before you begin operating. This is separate from your local business license. You file articles of organization for an LLC or articles of incorporation for a corporation, and in most states the total cost is under $300.2U.S. Small Business Administration. Register Your Business
If your LLC or corporation does business in states beyond the one where it was formed, you may also need to file for foreign qualification in those additional states. That means filing a certificate of authority and, in many cases, providing a certificate of good standing from your home state.2U.S. Small Business Administration. Register Your Business Once registered, most states require an annual or biennial report with updated information. Miss that filing and your entity can be administratively dissolved, which strips the liability protection you formed it to get.
Sole proprietors and general partnerships don’t register the entity itself, because there isn’t one to register in the eyes of the state. They still need the local operating license, and often a DBA filing on top of it.
When You Need a DBA Filing
If you operate under any name other than your legal name as a sole proprietor, or your entity’s official registered name as an LLC or corporation, most states require a “doing business as” filing. You may hear this called a DBA, fictitious business name, or assumed name certificate. Filing fees generally run between $10 and $150, and some states also require you to publish a notice in a local newspaper.
This filing is easy to overlook, and the consequences of skipping it are surprisingly harsh. In many states, a business operating under an unregistered name cannot file lawsuits to enforce contracts made under that name and cannot raise counterclaims if sued. You may also be unable to open a business bank account under the trade name. Some states impose additional monetary penalties for conducting business under an unregistered name.
When You Need a Sales Tax Permit
Any business that sells taxable goods or certain services needs a sales tax permit, also called a seller’s permit or resale certificate, in each state where it has a collection obligation. As of 2026, 45 states plus the District of Columbia impose a general sales tax. The permit itself is typically free or costs a nominal fee, but the obligation it creates is ongoing: you collect tax from customers and remit it to the state on a regular schedule.
Online sellers can’t assume they’re off the hook. After the Supreme Court’s 2018 decision in South Dakota v. Wayfair, every sales-tax state has adopted economic nexus rules that require remote sellers to register once they cross a revenue threshold in that state. The most common trigger is $100,000 in annual sales, though a few states set it higher. Sellers who exceed the threshold without registering face penalties that typically include a percentage of the unpaid tax plus interest, and criminal penalties are available in every state for willful noncompliance.
When Your Profession Requires a State License
State governments regulate professions that directly affect public health, safety, or financial well-being. Doctors, nurses, attorneys, accountants, plumbers, electricians, and general contractors all need state-issued licenses before they can legally practice.3U.S. Department of Education. Professional Licensure Each profession’s licensing board sets its own educational, examination, and experience requirements, and those requirements vary from state to state.
Getting licensed typically involves completing an accredited educational program, passing a standardized exam, and logging a set number of supervised practice hours. Background checks and proof of liability insurance are common prerequisites, and many trades also require a surety bond. Fees for initial licensure and renewals range from around $100 to well over $1,000 depending on the profession. Working without a valid professional license is a serious offense that can lead to criminal charges, administrative fines of $5,000 or more per violation, and a permanent bar from the profession.
If You Practice Across State Lines
Professionals who work in more than one state should check whether an interstate licensing compact covers their field. The Nurse Licensure Compact allows nurses to hold a single multistate license. The Interstate Medical Licensure Compact offers physicians an expedited path to licenses in member states. Similar compacts exist for physical therapists, psychologists, audiologists, cosmetologists, and a growing list of other professions. Participation varies by state, so the first step is confirming your home state has joined the relevant compact.
When Federal Licensing Applies
Certain business activities require a federal license because they involve national safety, public health, or interstate commerce. The SBA maintains a reference list of federally regulated activities and the agency responsible for each.4U.S. Small Business Administration. Apply for Licenses and Permits Federal permits involve rigorous background checks and strict record-keeping, and penalties for violations are far steeper than at the local level, including prison time for most licensing offenses.
The main triggers:
Firearms, ammunition, and explosives. No one may engage in the business of manufacturing, dealing in, or importing firearms or ammunition without first obtaining a Federal Firearms License from the Bureau of Alcohol, Tobacco, Firearms and Explosives.5Office of the Law Revision Counsel. 18 USC 923 – Licensing The ATF issues nine types of firearms licenses and five types of explosives licenses.6Bureau of Alcohol, Tobacco, Firearms and Explosives. Federal Firearms and Explosives Licenses by Types Application fees range from $30 for ammunition manufacturers and curio collectors to $3,000 for businesses dealing in destructive devices.7Bureau of Alcohol, Tobacco, Firearms and Explosives. Federal Firearms Licenses
Alcohol. Manufacturing, importing, or wholesaling alcoholic beverages requires a permit from the Alcohol and Tobacco Tax and Trade Bureau. There is no federal fee to apply for or maintain a TTB permit.8Alcohol and Tobacco Tax and Trade Bureau. Applying for a Permit and/or Registration TTB issues separate permit types for distilled spirits plants, breweries, wineries, importers, and wholesalers.9Alcohol and Tobacco Tax and Trade Bureau. Distilled Spirits Permits State and local alcohol licensing is an entirely separate layer, and those fees are often substantial.
Aviation. Operating an airline, air cargo service, or aircraft maintenance facility requires certification from the Federal Aviation Administration.10Federal Aviation Administration. Introduction to Certification Different regulations govern air carriers, repair stations, and aviation maintenance technician schools.11Federal Aviation Administration. Licenses and Certificates
Radio and television broadcasting. Commercial radio and television stations must obtain a license from the Federal Communications Commission before going on the air.12Federal Communications Commission. How to Apply for a Radio or Television Broadcast Station A construction permit for a new FM radio station costs $3,870, a new television station runs $5,000, and license renewals are around $365 to $370 annually.13Federal Register. Schedule of Application Fees
Meat, poultry, and egg products. The Federal Meat Inspection Act requires that all commercially sold meat from cattle, sheep, swine, and goats be inspected and passed by the USDA’s Food Safety and Inspection Service. Federal inspectors must be present at all times during slaughter operations and for part of each processing shift.14U.S. Department of Agriculture Food Safety and Inspection Service. Summary of Federal Inspection Requirements for Meat Products Restaurants and retail stores selling directly to consumers are generally exempt from mandatory federal inspection, but they can only use meat that has already been inspected and passed.
Federal licenses or permits are also required for commercial fishing (through NOAA), importing or transporting animals and plants across state lines (USDA), mining and drilling on federal land (Bureau of Safety and Environmental Enforcement), maritime cargo and passenger transport (Federal Maritime Commission), and commercial nuclear energy (Nuclear Regulatory Commission).4U.S. Small Business Administration. Apply for Licenses and Permits Penalties can be severe: willful violations of arms export controls, for instance, carry civil penalties exceeding $1.2 million per violation.15eCFR. 22 CFR Part 127 – Violations and Penalties
When a Home-Based Business Needs an Extra Permit
Running a business from your home often triggers a separate permit requirement when the commercial activity starts to change the feel of the neighborhood. The most common triggers are having employees who don’t live with you report to your home, hosting regular client visits, and storing significant amounts of inventory or materials on the property.
Home occupation permits typically come with restrictions on signage, the percentage of your home dedicated to business use, limits on daily customer visits, and prohibitions on commercial vehicle storage. Fees are usually modest. Operating a home-based business without the required permit can bring daily fines and, in more serious cases, an order from the local planning department to cease operations immediately.
When Zoning Triggers a Separate Permit
Zoning permits address where a business operates, not what it does. If you want to open a business in a district that isn’t explicitly zoned for your type of activity, you’ll need a conditional use permit or a zoning variance. A bakery in a light-industrial zone or a yoga studio in a residential area are the kinds of situations that trigger this requirement. Filing fees range widely depending on the complexity of the application, from several hundred to several thousand dollars. Approved permits often come with conditions like limited operating hours or mandatory off-street parking.
Getting a Variance
When a conditional use permit doesn’t cover your situation, you may need a variance. Approval requires showing that the zoning restriction creates an unnecessary hardship specific to your property. The hardship must stem from physical characteristics of the land itself, like an unusual lot shape, steep topography, or water features. Personal financial circumstances don’t count, and you can’t create the hardship yourself by, for example, subdividing a conforming lot into nonconforming pieces. The standard is genuine hardship that’s unique to the property, not shared by the surrounding neighborhood.
Operating at a location without proper zoning clearance can result in a permanent injunction against your business and daily fines that accumulate until the violation is resolved. This is one of those areas where getting it wrong is expensive to unwind, because you may have already signed a lease or invested in buildout before discovering the problem.
Keeping Your Licenses Current
Licensing isn’t a one-time event. Most business licenses, professional licenses, and permits require periodic renewal, and letting them lapse creates the same legal exposure as never having obtained them in the first place.
Professional license renewal almost always requires completing a minimum number of continuing education hours. State licensing boards conduct audits to verify compliance, and failing to produce documentation of completed coursework can result in suspension or revocation. General business licenses typically renew annually, with late fees that escalate by the month; penalties of 15% to 30% of the unpaid license fee are common.
If your business is an LLC or corporation, the annual or biennial report you owe the secretary of state is another deadline to track. Missing it won’t generate a fine in every state, but it can lead to administrative dissolution of your entity. Your LLC or corporation then ceases to exist in the eyes of the state, and you lose the liability protection you formed it to create. Reinstating a dissolved entity is possible but involves additional fees and paperwork, and the gap in coverage can leave you personally exposed to claims that arose during the lapse.