LLC vs. S-Corp

LLC means limited liability company. It is a business structure formed under state law. In general, it can help separate the owner's personal assets from business debts and lawsuits if the business is properly set up and run.

S-corp means S corporation tax status. It is not a separate type of state-law business entity by itself. Instead, it is a federal tax election that an eligible business can ask the IRS to apply. Many LLCs choose S-corp tax treatment, and some corporations do too.

This is where people get confused: an LLC is usually the legal entity you form with the state, while S-corp is usually a tax choice made with the IRS.

If you are still deciding what kind of business to form, see LLC vs. Corporation: Which Is Right? and How to Form an LLC in the US.

Here is the short version.

• Formation: An LLC is created by filing articles of organization, which are the document filed with the state to officially create the LLC. An S-corp tax election is usually made after the business already exists.
• Tax default: A single-member LLC is usually taxed by default like a sole proprietorship, and a multi-member LLC is usually taxed by default like a partnership. An LLC can later elect S-corp tax treatment if it qualifies.
• Ownership rules: S-corp status has IRS eligibility rules. Not every business or owner will qualify.
• Payroll: An LLC taxed as an S-corp usually needs owner payroll if the owner works in the business and takes compensation.
• Paperwork: Plain LLC taxation is often simpler. S-corp tax treatment often adds accounting, payroll, and tax-filing work.
• State law flexibility: LLCs are often more flexible in how profits, voting, and management are set up, subject to state law and the company's documents.

Most LLCs should also have an operating agreement, which is the internal document that explains who owns the company, how decisions are made, how profits are handled, and what happens if an owner leaves. Even when a state does not require one, it is often a good idea.

You will also usually need an EIN, which is an Employer Identification Number issued by the IRS for tax and business identification purposes. Learn more at What Is an EIN and How to Get One.

LLC with default tax treatment

Pros:
- Often simpler to start and maintain
- Flexible ownership and management rules in many states
- May be easier for very small businesses or early-stage owners
- Usually less payroll complexity if there are no employees

Cons:
- Self-employment tax treatment may be less favorable for some owners once profit grows
- Rules still vary by state
- Investors may prefer other structures in some situations

LLC taxed as an S-corp

Pros:
- May reduce some employment-tax burden for some owners if the setup is done correctly
- Keeps the LLC legal structure while changing federal tax treatment
- Can make sense for businesses with steady profit above what the owner would pay as a reasonable salary

Cons:
- More administration, including payroll and tax compliance
- The IRS expects a reasonable salary for owner-employees
- Eligibility limits apply
- Mistakes in payroll, filings, or compensation can create tax problems

A licensed attorney and a tax professional can help you think through both the legal side and the tax side. FoundryCounsel is not a law firm and does not give legal advice, but you can get matched for free with a licensed business attorney.

Costs depend on your state and how much help you want.

Typical costs may include:
- State filing fees to form an LLC
- Annual or biennial state report fees, depending on the state
- Registered agent fees if you hire one. A registered agent is the person or company authorized to receive legal and government papers for the business.
- Accounting or payroll service costs if you choose S-corp tax treatment
- Attorney flat fees for formation, review, and setup

State filing fees for an LLC are often in the range of about $50 to $500, depending on the state. Annual report fees may range from $0 to a few hundred dollars. Attorney flat-fee ranges for formation and setup vary widely by state, complexity, and scope of work. These ranges are general information only, not quotes.

If you choose S-corp tax treatment, the added cost is often not the IRS election itself but the ongoing work: payroll, bookkeeping, tax returns, and compliance.

You can read more at How Much Does a Business Lawyer Cost? and see related help on business entity formation.

An LLC with default tax treatment may make sense if:
- You are just starting
- Profit is still modest or unpredictable
- You want simpler administration
- You are the only owner or have a small ownership group and want flexible internal rules

An LLC taxed as an S-corp may make sense if:
- The business has consistent profit
- You actively work in the business
- You are prepared to run payroll and keep tighter records
- Your attorney and tax professional agree the tax election fits your numbers and your state

There is no one-size-fits-all answer. The right setup depends on your income, whether you have co-owners, your state rules, your future plans, and whether you may bring in investors.

To confirm the best path, check the rules with your state's Secretary of State, review IRS materials at IRS.gov, and speak with a licensed attorney. If you want help finding one, see how it works or get matched.