Business License Requirements for Small Businesses in the US

Most small businesses in the US need at least one license or permit to operate legally. There's no single national business license, though. What you need depends on two things: what your business does and where it does it. A freelance designer working from home might need one simple city license, while a restaurant could need half a dozen permits from different offices.

Here's how the layers work, which licenses are most common, and how to work out exactly what applies to you.

Registration and licensing are two different things

People often assume that once they've formed an LLC or corporation, they're good to go. They aren't. Registering with your state creates the legal business. A license gives you permission to carry out a particular activity in a particular place.

Think of registration as your business's birth certificate and licenses as its permits to work. You'll usually need both. If you haven't registered yet, our guide to registering a small business in the US covers that part.

Federal licenses: only for regulated activities

Most small businesses never need a federal license. You only need one if your business works in an area a federal agency regulates. The SBA lists these, among others:

Alcohol is a good example of how the layers stack. A federal permit doesn't replace state and local approval. You'll usually need your local alcohol beverage control board as well.

State licenses

States regulate far more activities than the federal government, so this is where most businesses meet their first real requirements. The common types are below.

Professional and occupational licenses

Many trades and professions need a state license held by the person doing the work. Depending on the state, that can include contractors, electricians, plumbers, cosmetologists and barbers, real estate agents, accountants, healthcare workers and many others. These usually involve training, an exam or proof of experience, so start early if your work falls into this group.

Sales tax permits

If you sell taxable goods or services in a state that has a sales tax, you'll generally need to register with the state revenue department before you make sales. This is often called a seller's permit or sales tax license. It lets you collect sales tax from customers and pass it on to the state.

Industry-specific state permits

Some industries need extra state approval: food production, childcare, transport, environmental work and so on. Your Secretary of State's website or state business portal is usually the best place to start, since many states link all their licensing agencies from one page.

County and city licenses

Local requirements catch the most people out, because they change from one town to the next. The SBA notes that activities like construction, plumbing, restaurants, retail, dry cleaning, auctions and vending machines are commonly regulated at the local level.

Here's what you're most likely to run into:

• General business license. Many cities and some counties require one for nearly every business operating within their limits. Some call it a business tax certificate.
• Zoning approval. Your location has to be zoned for your kind of business. Check before you sign a lease, not after.
• Health permits. Required for food businesses and some personal care services, usually from the county or city health department.
• Building and fire permits. Needed if you renovate a space or if your premises will be open to the public.
• Signage permits. Some cities regulate the size and placement of business signs.

If your business is an LLC, corporation, partnership or nonprofit, you may also need to file with your county or city, even though you registered with the state.

Running a business from home

Working from home doesn't automatically exempt you. Zoning rules can still apply, and some cities require a home occupation permit, especially if clients visit, you have employees, or you store stock or equipment. Your city planning department can tell you what applies to your street.

While you're at it, check your insurance. The SBA notes that home-based business coverage can often be added as a rider to a homeowner's policy. A standard home policy may not cover business equipment or a client injured at your home.

How to find exactly what you need

There's no single office that lists every license for every business, so you'll piece it together. This order works well:

1. Check whether your activity is on the federal list above. If it isn't, you can skip federal licensing.
2. Visit your state's business portal or Secretary of State's website and look for licensing information for your industry.
3. Contact your county clerk and your city's business licensing or planning office. Ask directly: what do I need to operate this kind of business at this address?
4. Ask your local Small Business Development Center or SCORE chapter if you're unsure. Both offer free help to small business owners.
5. Write down each license, who issued it, what it costs and when it expires.

Fees vary by location, activity and business structure, so the office issuing each license is the only reliable source for current costs.

Don't forget renewals

Getting licensed isn't a one-time job. Many licenses and permits expire after a set period, often a year. Renewing is usually quicker and cheaper than starting over, so put every expiry date in your calendar the day the license arrives.

Also check again whenever your business changes. Moving to a new address, adding a new service, hiring staff or opening in another city can each bring new requirements. A short call to the local licensing office before you make the change can save you a fine later.