How to Register a Business Online: A Step-by-Step Guide

Registering a business online sounds like it should take five minutes, but the process involves more moving parts than most people expect. You'll need to pick a legal structure, register with your state, and get an EIN from the IRS before you can open a bank account or hire anyone. This guide walks through each step in the order most states actually expect it.

What Business Registration Actually Involves

Business registration is the legal process of telling your state and the federal government that your company exists. It's not one form. It's a handful of filings spread across a few weeks, sometimes longer if your state's processing backlog is bad.

Every state runs this through its Secretary of State office, though a few call it the Department of State or the Division of Corporations instead. The federal side runs through the IRS, and most business owners also end up registering with their state's Department of Revenue for sales tax purposes if they're selling physical goods.

Choosing a Business Structure

Before you file anything, you have to decide what kind of business you're forming. This decision affects your taxes, your paperwork, and how much of your personal savings is on the line if something goes wrong.

Limited Liability Company (LLC)

An LLC is the most common choice for small business owners registering online, and there's a reason for that. It separates your personal assets from business debts, so if the business gets sued or can't pay a vendor, your house and car are generally protected. Filing fees vary by state: Delaware's Division of Corporations charges $90, California's Secretary of State charges $70 plus an $800 annual franchise tax, and Texas charges $300. Most states process LLC formation documents, usually called Articles of Organization, within one to two weeks online. LLCs also let you choose how you're taxed. A single-member LLC is taxed like a sole proprietorship by default, but you can elect S-corp taxation with the IRS if it saves you money once profits climb past roughly $40,000 to $50,000 a year.

Sole Proprietorship

A sole proprietorship isn't really a separate legal entity at all. It's just you, doing business under your own name or a "doing business as" name you register with your county or state. There's no formation paperwork beyond the DBA filing, which usually costs between $10 and $100 depending on where you live. The catch is liability: if your business owes money or gets sued, creditors can come after your personal bank account, your car, even your house. Freelancers and single-person consulting shops often start here because it's cheap and fast, then convert to an LLC once revenue picks up or the work involves any real risk.

Corporation (C-corp or S-corp)

A corporation is its own legal person, separate from you, with its own tax return. C-corps pay corporate tax on profits under the flat 21% federal rate set by the 2017 Tax Cuts and Jobs Act, and then shareholders pay tax again on dividends, which is the "double taxation" people complain about. S-corps avoid that by passing income through to owners' personal returns, but they cap ownership at 100 shareholders and require more formal record-keeping, including board minutes, bylaws, and annual meetings. Corporations make sense if you're planning to raise venture capital, since most investors won't put money into an LLC. For a typical small business, this structure is often more overhead than it's worth.

Structure	Liability Protection	Taxes	Paperwork
Sole Proprietorship	None, personal assets exposed	Reported on personal return, self-employment tax applies	Minimal, just a DBA filing in most cases
LLC	Yes, personal assets generally shielded	Pass-through by default, can elect S-corp treatment	Moderate, Articles of Organization plus annual reports
Corporation	Yes, strongest separation from owners	Corporate tax rate, double taxation for C-corps	Heaviest, bylaws, board minutes, annual meetings

The Step-by-Step Registration Process

Once you've settled on a structure, the actual filing is fairly mechanical. Here's the order most states expect.

1. Choose and check your business name. Search your Secretary of State's business name database to confirm it's available, then check if the matching domain name and social handles are free too.
2. File your formation documents online. Submit Articles of Organization for an LLC or Articles of Incorporation for a corporation through your state's Secretary of State website. Sole proprietors file a DBA instead.
3. Appoint a registered agent. Most states require a registered agent with a physical address in-state who can accept legal documents on your behalf during business hours.
4. Get your EIN from the IRS. Apply online at irs.gov for free, and you'll usually get the number instantly if you apply during business hours.
5. Register for state and local licenses. Check with your city, county, and state to see if your industry needs a specific license or seller's permit before you open.

Getting an EIN From the IRS

An Employer Identification Number is basically a Social Security number for your business, and the IRS issues it for free through its online application at irs.gov. You'll need one to open a business bank account, hire employees, or file most business tax returns, even as a single-member LLC with no employees.

The online EIN application, IRS Form SS-4, takes about 15 minutes if you have your formation documents ready. In practice, the EIN step is where most people get stuck, not because it's hard, but because the online system logs you out after 15 minutes of inactivity and it's only available during specific weekday hours. If you're not sure whether your state requires anything on top of the EIN, our state business license guide breaks down the most common requirements by industry.

State-Specific Considerations

Registration rules and costs differ a lot by state, and this is where a lot of business owners get tripped up. Nevada and Wyoming have no state income tax and relatively low LLC fees, which is why you'll see ads pushing people to register there no matter where they actually live and work.

That's usually bad advice. If you operate in California but register in Wyoming, California still requires you to register as a "foreign LLC" doing business in-state, so you end up paying fees in both places.

New York adds its own wrinkle: the New York Department of State requires new LLCs to publish a notice in two local newspapers, which can cost anywhere from a few hundred dollars to over a thousand in New York City. Texas has no state income tax but does apply a franchise tax once annual revenue passes a threshold set by the Texas Comptroller of Public Accounts, which sits at roughly $2.47 million as of the current schedule. It's worth checking your specific state's current fee schedule before you file, since these numbers do shift year to year.

Common Mistakes to Avoid

• Registering in a low-fee state to save money, then getting hit with foreign qualification fees anyway once your home state notices you're doing business there.
• Skipping the registered agent requirement or listing your home address without checking whether your state allows it.
• Applying for an EIN before your state approves your formation documents, which the IRS can reject or flag for correction.
• Forgetting to file your annual report or franchise tax, which is one of the fastest ways to get administratively dissolved. Our annual report requirements guide covers deadlines by state.
• Mixing personal and business finances from day one, which can undercut the liability shield an LLC is supposed to give you.

Getting Registered and Staying on Track

Registering your business online usually takes anywhere from a few days to a few weeks, depending on your state's processing speed and whether you paid for expedited filing. The SBA's website at sba.gov has a free tool that walks through state-specific requirements if you want a second source to check your work against.

None of this replaces a real conversation with an accountant or business attorney once your situation gets more complicated, especially around multi-state operations, bringing on partners, or choosing between LLC and S-corp tax treatment, and that one conversation often costs less than fixing a mistake later.