This guide is general legal information, not legal advice, and does not create an attorney–client relationship. Rules change and vary by state — verify current requirements with official sources or a licensed attorney.
Filing articles of organization with a secretary of state creates a legal entity. It does not authorize the entity to sell anything, serve food, hire staff, occupy a building, or practice a regulated trade. Those permissions come from a separate stack of licenses and permits issued by federal agencies, state agencies, counties, and cities — each with its own application, fee, inspection, and renewal cycle.
The stack varies enormously by activity and address. A software consultancy operating from a home office may need almost nothing beyond a local business registration; a restaurant with a liquor license, a sign, outdoor seating, and a delivery fleet may need a dozen approvals from four different bodies. The practical task is figuring out which layer applies to you and building a calendar so nothing lapses.
Key takeaways
- Federal licensing is activity-specific — most businesses need none, but a defined set of regulated industries do.
- State requirements typically split into three groups: general registration, tax accounts such as a sales-tax permit, and occupational or professional licensing.
- Local governments control zoning, occupancy, signage, health, fire, and often a general business license — and they are where new businesses are most often surprised.
- Operating across state lines usually triggers foreign qualification plus a fresh set of state and local permits in each location.
- Licenses expire. A renewal calendar with named owners is the single most useful compliance habit.
The federal layer: narrow but non-negotiable
There is no general federal business license in the United States. Federal permission is required only when the business engages in an activity a federal agency regulates. The Small Business Administration's guidance on applying for licenses and permits lists the recurring examples, including:
- Agriculture and animal products — U.S. Department of Agriculture
- Alcoholic beverages — Alcohol and Tobacco Tax and Trade Bureau (plus state and local licensing)
- Aviation — Federal Aviation Administration
- Firearms, ammunition, and explosives — Bureau of Alcohol, Tobacco, Firearms and Explosives
- Fish and wildlife activities — U.S. Fish and Wildlife Service
- Commercial fisheries — National Oceanic and Atmospheric Administration
- Maritime transportation — Federal Maritime Commission
- Mining and drilling — Bureau of Safety and Environmental Enforcement
- Nuclear energy — Nuclear Regulatory Commission
- Radio and television broadcasting — Federal Communications Commission
Financial services add their own federal registration regimes. Broker-dealers, investment advisers above certain thresholds, and other market participants register with the Securities and Exchange Commission or with self-regulatory organizations, while money services businesses register federally and license state by state. Sector-specific rules also govern transport (motor carrier authority), customs brokerage, and food manufacturing.
Distinguish licensing from tax registration. An employer identification number from the IRS is a taxpayer account, not a license, though nearly every business needs one — the process is described at the IRS Small Business and Self-Employed Tax Center. Nonprofits face a parallel but distinct federal recognition process covered in our guide to forming a nonprofit.
The state layer: three separate tracks
State-level obligations usually fall into three groups that arrive from different agencies and are easy to confuse.
Entity registration and standing
Formation with the secretary of state, appointment of a registered agent, an assumed-name or "doing business as" filing if you trade under a different name, and annual or biennial reports plus franchise taxes to stay in good standing. A lapsed annual report can administratively dissolve an entity, which can suspend the ability to sue and complicate contracts — one more reason the compliance calendar matters, alongside the maintenance points in our guide to choosing a business structure.
Tax accounts
Separate registrations with the state revenue department: a sales-and-use tax permit (often called a seller's permit or resale certificate) where you sell taxable goods or services, withholding and unemployment insurance accounts once you have employees, and industry-specific excise accounts for fuel, tobacco, or cannabis. Since states began asserting economic nexus for sales tax, remote sellers can owe registration in states where they have no physical presence once thresholds are crossed — check each state's current thresholds directly, as they change.
Occupational and professional licensing
States license both individuals and firms. Individual licensing covers professions such as law, medicine, accounting, engineering, nursing, real estate, cosmetology, and the trades. Firm-level licensing is separate and often overlooked: a contracting company frequently needs its own contractor license and bond even when its owner holds a personal license. Some professions also restrict entity form, requiring a professional corporation or professional LLC with ownership limited to licensed practitioners.
State variation: A handful of states impose a statewide general business license or registration on essentially all businesses; most do not, leaving general licensing to cities and counties. There is no national list that stays current, so verify against your own secretary of state, revenue department, and licensing board rather than a third-party summary.
The local layer: where surprises live
City and county requirements are the most numerous and the least standardized. Common items:
- General business license or business tax certificate — a registration with the municipality, often with a fee based on gross receipts or headcount.
- Zoning approval — confirmation that the intended use is permitted at the address, including home-occupation permits for businesses run from a residence.
- Certificate of occupancy — issued after inspection, confirming the space may lawfully be used for the stated purpose.
- Building permits for any tenant improvements, plus electrical, plumbing, and mechanical sign-offs.
- Health department permits for food service, food handling certifications, and periodic inspections.
- Fire department permits covering occupancy load, alarms, suppression systems, and hazardous materials storage.
- Sign permits, which frequently have their own dimensional and illumination rules.
- Alarm, waste, stormwater, and special-use permits depending on the operation.
Zoning is the item most likely to derail a plan, because it attaches to the property rather than the business. Signing a lease before confirming that the use is permitted — and that any needed variance is realistically obtainable — is a recurring and expensive error. Ask the landlord for a written representation about permitted use and make the lease contingent on obtaining the required approvals.
A workable sequence
- Define the activity precisely. Licensing follows what you do, not what you call yourself. Write down every revenue-generating activity, including incidental ones such as delivery, installation, or resale.
- Form the entity and secure the name. Register with the secretary of state, appoint a registered agent, and file any assumed-name registration.
- Obtain federal tax identity. Apply for an EIN; open the business bank account that account number supports.
- Check federal activity licensing. Work through the agency list above; if none applies, document that conclusion.
- Register with the state. Tax accounts, employer accounts, and any occupational or firm license, including bonds and insurance certificates the licensing board requires.
- Clear the location. Confirm zoning, then apply for the local business license, certificate of occupancy, and any health, fire, or sign permits — before build-out where possible.
- Build the renewal calendar. Record every license number, issuing body, expiration date, renewal lead time, and responsible person.
Timing matters more than most founders expect. Liquor licenses, professional firm licenses, and health permits can take months and may require public notice or hearings. Budget the lead time into the opening date rather than discovering it afterward.
Growing across state and city lines
Expansion multiplies the stack. Doing business in a new state generally requires foreign qualification with that state's secretary of state, a registered agent there, and then the same state and local sequence again. Hiring a remote employee in a new state typically creates payroll tax registration and unemployment insurance obligations there, and sometimes triggers income-tax nexus for the business. Those consequences are separate from the employment-law questions raised when workers are engaged as contractors, addressed in our guide to worker classification.
Contracting and supply relationships can also carry licensing conditions. Customers in regulated sectors often require proof of current licenses and insurance as a condition of payment, and those representations are commonly written into supply agreements — one of the practical points in our guide to vendor and supplier contracts.
Frequently asked questions
Do I need a business license if I work from home?
Often yes. Many cities require a general business license or tax certificate regardless of where the work happens, plus a home-occupation permit that may limit signage, client visits, employees on site, deliveries, and storage. Residential leases and homeowners association rules can impose their own restrictions independent of the city's.
What happens if I operate without a required license?
Consequences range from fines and back fees to closure orders and, in some professions, criminal exposure. A quieter risk matters more in practice: in some states an unlicensed contractor or professional cannot enforce its contracts or collect payment for work performed, and insurers may deny coverage for unlicensed activity.
Is an EIN a business license?
No. An employer identification number is a federal taxpayer identifier used for returns, payroll, and bank accounts. It confers no authority to operate. Businesses frequently need an EIN, state tax registrations, and one or more operating licenses, and obtaining one says nothing about the others.
How do I find every permit that applies to my business?
Work from the address and the activity, checking four sources: the relevant federal agency if your industry is on the regulated list, your secretary of state, your state revenue department and licensing boards, and your city and county. The SBA's guidance is a useful starting map, but only the issuing agencies can confirm current requirements and fees.
Do licenses transfer when a business is sold?
Frequently not. Many licenses are personal to the holder or the entity and require a new application, an ownership-change filing, or regulator consent — liquor licenses and professional licenses especially. This is why licensing is a standard workstream in transaction diligence, and why deal structure sometimes turns on whether a permit can be transferred at all.
Keeping it current
Treat licensing as an ongoing operating function rather than a launch task. Keep a single register listing each license, its number, issuer, scope, renewal date, and internal owner, with copies of certificates stored where staff and auditors can find them. Set reminders well before expiration, since some renewals require continuing education, updated bonds, or fresh inspections that cannot be arranged in a week.
Re-run the analysis whenever something material changes: a new product line, a new physical location, a first employee in another state, a change of entity type, or a change of ownership. Each of those can add a requirement or invalidate an existing permission. General small-business guidance is published by the U.S. Small Business Administration, and further material on formation and compliance is collected in our business and corporate law topic hub. This article is general information, not legal advice; requirements differ by state, county, and city, so confirm yours with the issuing agencies or local counsel.
