Should You Form an LLC or S-Corp? A Simple Decision Framework
If you've Googled "LLC vs S-Corp," you've probably found a dozen articles that made the decision sound more complicated than it needs to be. Here's the truth: for most small business owners, the answer comes down to one question. How much money are you making?
Let's break it down.
What Each One Actually Is
An LLC (Limited Liability Company) is a business structure. It protects your personal assets (house, car, savings) from business debts and lawsuits. By default, a single-member LLC is taxed as a sole proprietorship. All profit flows to your personal tax return and you pay self-employment tax on the full amount.
An S-Corp is not a business structure. It's a tax election. You can form an LLC and then elect S-Corp tax status with the IRS. This doesn't change your liability protection. What it changes is how you're taxed.
This distinction trips people up. You don't choose between an LLC *or* an S-Corp. You form an LLC, and then you *may* elect S-Corp taxation on top of it.
The Tax Difference (This Is the Big One)
As a standard LLC, the self-employment tax rate is 15.3% on most of your business profit (up to the Social Security wage base, which you can verify at SSA.gov for the current year). If you net $100,000, that's roughly $15,300 in self-employment tax alone, before income tax.
With an S-Corp election, you pay yourself a "reasonable salary" and take the rest as a distribution. You only pay self-employment tax (via payroll taxes) on the salary portion. The distribution is not subject to self-employment tax.
Example: You net $100,000. You pay yourself a $50,000 salary and take $50,000 as a distribution. You save roughly $7,650 in self-employment tax. That's real money.
The $50K Rule of Thumb
The S-Corp election adds complexity. You'll need to run payroll (even if it's just for yourself), file a separate S-Corp tax return, and potentially pay higher accounting fees.
A commonly cited rule of thumb among accountants: if your net business income is consistently above $50,000 per year, the S-Corp election generally starts to make financial sense. Below that, the tax savings often don't justify the added cost and hassle.
Some accountants put the threshold at $40K, others at $60K. It depends on your specific situation, state taxes, and how much you'd pay in additional accounting fees.
When to Make the Switch
Many accountants advise not rushing it. Starting as a simple LLC is common. Once your net income has been reliably above that threshold for several months, consider having a conversation with your accountant about electing S-Corp status. The IRS requires Form 2553 to be filed by March 15 of the tax year for the election to be effective that year.
Important disclaimer: This is general educational information, not tax advice. Your situation is unique. Before making any entity or tax election decisions, consult a qualified accountant or tax professional who understands your full financial picture.
To get a feel for how salary vs. distribution splits affect your take-home pay, check out our Salary vs. Distribution Calculator. It lets you model different scenarios so you can walk into your accountant's office with better questions.
FAQ
Can I be an LLC and an S-Corp at the same time?
Yes. An LLC is a legal structure, and S-Corp is a tax classification. You form an LLC with your state, then file Form 2553 with the IRS to elect S-Corp taxation. Your business remains an LLC for liability purposes but gets taxed like an S-Corp. Most small business owners who "switch to S-Corp" are actually keeping their LLC and adding the tax election.
At what income level does an S-Corp make sense?
A commonly cited threshold is $50,000 to $60,000 in consistent net business income per year. Below that, the tax savings from the S-Corp election are usually offset by the added costs of running payroll, filing a separate tax return, and paying higher accounting fees. Your specific break-even depends on your state taxes and accounting costs.
What is the downside of electing S-Corp status?
You are required to run payroll for yourself, file quarterly payroll tax returns, and file a separate S-Corp tax return (Form 1120-S). This adds $2,000 to $5,000 per year in compliance costs. You also must pay yourself a "reasonable salary" before taking distributions, and setting it too low can trigger IRS scrutiny and penalties.
When is the deadline to elect S-Corp status?
Form 2553 must be filed by March 15 of the tax year for the election to take effect that year. If you miss the deadline, you can request late election relief by attaching a reasonable cause statement. The IRS does grant late elections in many cases, but filing on time avoids the hassle.
Do I need a separate bank account for an S-Corp?
It is strongly recommended. While an LLC can sometimes get away with informal bookkeeping, an S-Corp requires clear separation between salary payments, distributions, and business expenses. Mixing personal and business funds in an S-Corp can create basis tracking problems and weaken your liability protection.