Top Legal Questions to Consider When Starting Your Business

Starting a business means making a series of legal decisions before you ever open your doors. The questions you answer early — about structure, taxes, contracts, and intellectual property — shape your liability, your costs, and how much protection you actually have. Here are the legal issues every entrepreneur needs to think through.

Your business structure is the most consequential legal decision you'll make at the start. It determines your personal liability, how you're taxed, and what paperwork you're required to file. The 4 main options are sole proprietorship, partnership, LLC, and corporation — and each one works differently.

Sole proprietorship

The simplest structure — no formation paperwork required. But the owner and the business are legally the same entity, which means your personal finances are fair game if the business incurs debt or gets sued.

Partnership

Works for co-founders, but in a general partnership all partners share liability for business debts. A limited partnership gives some partners liability protection, but at least one general partner remains fully on the hook.

LLC

An LLC separates your personal assets from business debts while keeping taxes relatively straightforward through pass-through taxation. It's the most popular structure for small business owners because it offers real liability protection without the formality of a corporation.

Corporation

The most complex structure, with stricter formalities like annual meetings and board requirements. Corporations offer strong liability protection and are better positioned to raise outside investment — but they come with more administrative overhead.

Most businesses need at least one permit or license to operate legally — and the requirements depend on your industry, location, and what your business actually does. Getting this wrong can mean fines or being forced to stop operating, so it's worth checking before you open.

At the federal level, licenses are required for specific regulated industries — things like broadcasting, aviation, alcohol sales, and interstate transport. At the state level, professions like healthcare, construction, and food service typically require state-issued licenses. Most cities and counties also require a general business license just to operate within their jurisdiction.

The SBA's license and permit finder is a good starting point for figuring out what applies to your business. A local business attorney can help you catch anything industry-specific that a general tool might miss.

An Employer Identification Number (EIN) is a 9-digit number the IRS uses to identify your business for tax purposes. Most business structures need one — including corporations, partnerships, LLCs with employees, and S Corporations. Sole proprietors without employees may use their Social Security number instead, but an EIN keeps your personal number off business documents.

You can get an EIN for free directly from the IRS. The online application at irs.gov processes your EIN immediately. Fax applications take about 4 business days.

Beyond the EIN, your tax obligations depend on your structure. Pass-through entities like LLCs and S Corporations report income on the owner's personal return. C Corporations pay corporate income tax separately. If you have employees, you'll need to withhold federal income tax, Social Security, and Medicare from wages and file Form 941 quarterly with the IRS. A tax professional can help you figure out which filings apply to your situation.

Registering your business name with the state and registering a federal trademark are two different things — and most entrepreneurs don't realize that until it's too late. State registration lets you operate under a name. Federal trademark registration protects that name from being used by others across the country.

Before you commit to a name, search both your state's business name database and the USPTO trademark database. A name that's available in your state may already be trademarked at the federal level — and building a brand around it puts you at risk of an infringement claim.

Federal trademark registration is handled by the United States Patent and Trademark Office (USPTO) and gives you nationwide protection for marks used in commerce. Trademark rights can arise from common law use without registration, but registration gives you stronger legal standing if you ever need to enforce them.

Contracts are how you define expectations and protect yourself when something goes wrong. Most businesses need a core set of agreements in place before they start working with anyone — customers, vendors, contractors, or employees.

• Operating agreement (for LLCs) — defines ownership percentages, how decisions get made, and how either party can end the relationship. Even single-member LLCs benefit from having one.
• Independent contractor agreements — spell out the scope of work, payment terms, and who owns the work product. These also help support proper worker classification.
• Non-disclosure agreements (NDAs) — protect confidential information you share with contractors, employees, or potential partners.
• Vendor and supplier agreements — set payment terms, delivery expectations, and what happens if either side doesn't hold up their end.
• Client or customer agreements — define what you're delivering, when, and what happens if there's a dispute.

A business attorney can draft or review these agreements to make sure they hold up. Template contracts from the internet are a starting point, not a finish line.

Intellectual property (IP) protection covers 4 main categories: trademarks, copyrights, patents, and trade secrets. Which ones apply to your business depends on what you've created and how you use it.

Trademarks

Trademarks protect brand names, logos, and slogans used in commerce. Federal registration through the USPTO gives you nationwide protection and the legal presumption that you own the mark.

Copyrights

Copyright protection applies automatically to original works — writing, software, music, design — the moment you create them. Registering with the U.S. Copyright Office isn't required, but it gives you the ability to sue for infringement and claim statutory damages.

Patents

Patents protect new, useful, and non-obvious inventions. The USPTO grants utility patents for up to 20 years from the filing date. If you have a product in development, a provisional patent application can establish an early filing date while you finalize the invention.

Business insurance fills the gaps that your legal structure can't cover. An LLC protects your personal assets from business debts, but it doesn't protect the business itself from a lawsuit, a client claim, or a workplace injury. Insurance does.

• General liability insurance — covers third-party claims for bodily injury, property damage, and advertising injury. Most businesses need this as a baseline.
• Errors and omissions (E&O) insurance — covers claims that your work caused a client financial harm. Essential for service businesses and consultants.
• Workers' compensation insurance — required in most states if you have employees. Covers medical costs and lost wages for work-related injuries.
• Professional liability insurance — similar to E&O, but more common in licensed professions like accounting, law, and healthcare.

An insurance broker who works with small businesses can help you figure out what coverage makes sense for your industry and size.

If your business collects personal information from customers — names, email addresses, payment data, health information — data privacy laws likely apply to you. Which laws depend on where your customers are located, not just where your business is based.

At the federal level, sector-specific laws govern certain types of data. HIPAA applies to health information. COPPA applies to data collected from children under 13. The FTC Act covers deceptive data practices broadly. Several states have passed their own comprehensive privacy laws with specific requirements around data collection, disclosure, and consumer rights.

The practical starting point is to know what data you collect, why you collect it, and how you store and share it. A privacy policy on your website is often legally required. A legal professional can help you figure out which specific laws apply to your business model.

Lawsuits are a real possibility for any business, and the time to think about this is before it happens — not after you've received a complaint. Having a plan in place means you're not making decisions under pressure.

The most important step is to have a business attorney you can call. If you're served with a lawsuit, you'll need to respond within a specific deadline — missing it can result in a default judgment against your business. Your attorney can also review your contracts and insurance coverage before a dispute arises to identify gaps.

Beyond legal counsel, keeping your business and personal finances separate is one of the most practical protections you have. If your LLC is sued and a court finds that you've mixed personal and business money, your personal finances are fair game — a process called piercing the corporate veil. A dedicated business bank account and clean records go a long way toward preventing that.