LLC vs S-Corp for Buying a Small Business: What Claude for Legal Recommends

The core difference: what LLC and S-Corp actually mean

The terminology trips up most first-time buyers. An LLC (Limited Liability Company) is a legal entity type -- it exists as a structure independent of how the IRS treats it for taxes. An S-Corporation is a tax election, not a separate legal structure. You form a corporation or an LLC first, then elect S-Corp tax treatment by filing IRS Form 2553.

This distinction matters when you are buying a business because the question is really two separate questions: "What legal entity should I use to take ownership?" and "How should that entity be taxed?"

LLC taxed as a sole proprietor (single-member): All profits flow to your personal return on Schedule C. You pay self-employment tax (15.3% on the first $168,600 as of 2026) on the full net profit. Simple to administer. No payroll required for the owner.

LLC taxed as a partnership (multi-member): Profits flow to each member's personal return via a K-1. Each member pays self-employment tax on their distributive share. Requires an operating agreement and annual partnership return (Form 1065).

S-Corp election (on either an LLC or a corporation): You pay yourself a reasonable salary, subject to payroll taxes. Net profit above your salary flows as a distribution -- distributions are not subject to self-employment tax. This is the source of the "S-Corp tax savings" you have likely heard about.

Claude for Legal's entity comparison plugin walks through this decision tree, flags state-specific complications, and produces a structured comparison document. It does not make the final recommendation -- that requires an attorney and a CPA who know your specific acquisition structure, the target state, and your projected income.

SBA loan implications of entity choice

If you are using an SBA 7(a) or 504 loan to buy the business, your entity choice has direct implications for the closing process.

SBA lenders are comfortable lending to both LLCs and corporations. What they require is documentation that the entity exists, that it is properly authorized to borrow, and that ownership and management authority are clear. A disorganized entity -- one without a current operating agreement, one with ambiguous ownership splits, or one that has not been properly registered in the state -- creates friction at closing.

For an LLC: The lender will require a current operating agreement that names all members, defines their ownership percentages, and authorizes the manager or managing member to execute loan documents on behalf of the entity. If you formed the LLC in a rush or downloaded a generic template, you may need to amend it before closing.

For an S-Corp: The lender will require corporate bylaws, a shareholder agreement, board minutes authorizing the loan, and confirmation that the S-Corp election is in effect. This is more paperwork than an LLC structure, and it takes more time to organize correctly.

Claude for Legal can pull your existing entity documents via Box or DocuSign connectors, identify missing provisions, and draft amendment language for attorney review. The attorney executes the amendments and certifies that the entity is properly organized -- Claude prepares the drafts that make that certification faster.

One lender-specific note: SBA lenders will not accept AI-generated operating agreements as final documents without attorney certification. The draft Claude produces must go through a licensed attorney before it enters the closing package.

When the S-Corp election actually saves money

The S-Corp self-employment tax savings are real -- but they are not relevant at every income level, and they come with administrative costs that erode the benefit at lower profit levels.

The math works like this: as a sole proprietor or LLC taxed as a sole proprietor, you pay 15.3% self-employment tax on 92.35% of your net profit (the reduction accounts for the employer-side deduction). On $100,000 of net profit, that is approximately $14,130 in SE tax.

With an S-Corp election, you pay yourself a reasonable salary of, say, $60,000. You pay payroll taxes (15.3%) on that $60,000 -- approximately $9,180. The remaining $40,000 distributes as an S-Corp distribution with no SE tax. Total: approximately $9,180 vs. $14,130 -- a savings of roughly $4,950.

But the S-Corp requires: a payroll service (minimum $500-$1,500/year), a more complex tax return (Form 1120-S, typically $500-$2,000 more than a Schedule C), and quarterly payroll tax deposits. At $100,000 in profit, the net savings after administration costs are approximately $2,000-$4,000 per year. At $60,000 in profit, the savings may not cover the administration costs.

Claude for Legal's Tax-Season Organizer and entity analysis plugins can model this math from your projected revenue and cost inputs. The CPA signs off on whether the reasonable salary figure will withstand IRS scrutiny.

LLC vs S-Corp comparison across key dimensions

Note: "Best fit" thresholds depend on state, payroll service costs, and accountant fees. These are illustrative, not definitive.

What Claude for Legal cannot do -- and why that matters

Claude for Legal is not a law firm and does not provide legal advice. Every legal decision described in this article -- entity selection, FDD review, employment classification, ownership agreements -- requires review by a licensed attorney before action. Claude accelerates research and drafting; the attorney signs off.

This is not a minor caveat. The legal decisions new business owners face -- choosing an entity type, signing a franchise agreement, classifying workers -- carry real consequences. An LLC taxed incorrectly costs money. A misclassified worker triggers IRS penalties. A franchise agreement signed without counsel leaves you without recourse if the franchisor defaults on their obligations.

AI tools compress the time from "I have a question" to "I have a well-organized first draft." They do not replace the attorney who knows your state's specific rules, your franchisor's litigation history, or the enforceability of the clause you are about to sign.

Frequently Asked Questions