A sole proprietorship is the simplest way to be self-employed: no formal setup, and all of your business income on your personal tax return. An S Corp, by contrast, is a tax election that can lower your self-employment tax once your profit is steady, but it requires a legal entity, payroll and more paperwork.
In between sits a step many self-employed people take first: forming an LLC. This guide compares all three stages, explains what changes at each one, and helps you decide when, or whether, an S Corp makes sense for you.
Sole proprietorship vs S Corp at a glance
Because you can’t go straight from a sole proprietorship to an S Corp, this comparison includes the middle step: a single-member LLC (SMLLC).
| Sole proprietorship | Single-member LLC (default) | LLC with S Corp election | |
|---|---|---|---|
| Legal structure | None; you and the business are the same | A legal entity formed with your state | The same LLC |
| Liability protection | No | Yes | Yes, through the LLC |
| Taxes you pay | Income tax, plus self-employment tax on nearly all net profit | Same as a sole proprietorship | Income tax on your salary and profit; payroll taxes on your salary only |
| Tax reporting | Schedule C on your personal return | Same as a sole proprietorship | A separate S Corp business tax return, plus a W-2 and Schedule K-1 for you |
| How you pay yourself | Owner’s draws: transfers from your business account to your personal account, with no formal payroll | Same as a sole proprietorship | A reasonable salary through formal payroll, plus distributions |
| Tax ID | Your Social Security number or a sole proprietor EIN | The LLC’s own EIN | The LLC’s EIN |
| Ongoing admin | Bookkeeping and quarterly estimated taxes | Same, plus state annual reports or fees | Same, plus payroll, more detailed books, a business tax return and state filings |
How a sole proprietorship works
If you start freelancing or consulting without forming a legal entity, you’re a sole proprietor automatically. It’s the simplest setup, but the term can mean two different things.
Sole proprietorship as a structure vs. a way of reporting taxes
- As a business structure, it means you haven’t formed a legal entity. You and the business are the same, so business debts and claims can reach your personal assets.
- As a tax reporting method, it means you report business income and expenses on Schedule C with your personal tax return.
That distinction matters, because a single-member LLC changes the structure but, by default, keeps the same tax reporting. In other words, an LLC owner can be taxed like a sole proprietor without being one legally.
How sole proprietors pay themselves and pay taxes
As a sole proprietor, you pay yourself through owner’s draws, which are transfers from your business account to your personal account rather than formal payroll. Because no one withholds taxes from those draws, you generally make quarterly estimated tax payments. You pay income tax plus self-employment tax, your contribution to Social Security and Medicare, on nearly all of your net profit.
The middle step: forming an LLC
For many self-employed people, forming an LLC is the natural next step once their business builds momentum, whether or not an S Corp is ever in the picture. An LLC creates a legal entity and adds liability protection. By default, however, it doesn’t change the taxes you pay or how you report them.
That’s why many owners form an LLC and stay there. There’s no requirement to move on to S Corp status, and for plenty of businesses, the LLC alone is the right fit for years. For a deeper comparison, see sole proprietorship vs. LLC.
What changes when you form a legal entity
Forming an LLC changes many of your business’s foundational details, whether or not you later elect S Corp status. Plan to update:
- Your business name. Your LLC’s legal name goes on contracts, invoices and accounts.
- Your tax ID. Your LLC typically gets its own EIN, tied to the legal entity, which replaces the number you used on business paperwork as a sole proprietor. If you plan to elect S Corp status or hire employees, the LLC needs its own EIN (IRS).
- Your bank account. Open a business bank account in the LLC’s name to keep business and personal funds separate.
- Client paperwork. Send clients updated W-9s with your new name and EIN, and update contracts so payments go to the LLC.
If you’re making these changes partway through the year, see switching to an S Corp mid-year for how the timing works.
How an S Corp works
An S Corp isn’t a business you form. Instead, it’s a tax status that an eligible LLC or corporation elects with the IRS. As a result, the S Corp election is a step beyond the LLC, not a replacement for it. Once the election takes effect:
- You become an employee of your business and pay yourself a reasonable salary through formal payroll, with taxes withheld.
- You can take the remaining profit as distributions.
- Your tax reporting changes. The business files its own S Corp tax return, and you receive a W-2 for your salary and a Schedule K-1 for your share of profit.
In addition, states vary in how they treat the election, from separate state forms to additional fees, so the filing logistics extend beyond federal requirements. For a full introduction, see what an S Corp is.
How the taxes compare
For a Business-of-One, the biggest tax difference comes down to self-employment tax. As a sole proprietor or default LLC, you pay it on nearly all of your net profit. With an S Corp election, however, payroll taxes apply only to your salary, and the remaining profit you take as distributions avoids them. Both are still subject to income tax.
The combined rate for Social Security and Medicare is 15.3%. The Social Security portion applies up to an annual wage cap ($184,500 for 2026), while Medicare applies to all earnings.
For example, here’s an estimate for a business earning profit of $100,000, with the S Corp owner paying themselves a reasonable salary of 45% of profit and taking the remaining 55% as distributions:
| Sole proprietorship or default LLC | S Corp | |
|---|---|---|
| Profit | $100,000 | $100,000 |
| Reasonable salary (45%) | Not applicable | $45,000 |
| Remaining profit taken as distributions (55%) | Not applicable | $55,000 |
| Amount subject to self-employment tax | ~ $92,350 (self-employment tax applies to 92.35% of net profit) | $45,000 salary |
| Estimated self-employment tax | ~ $14,130 | ~ $6,885 |
| Estimated difference before added costs | ~ $7,245 |
Keep in mind that these figures are estimates for illustration only. It doesn’t include income tax, state taxes, or the cost of payroll, more detailed books and a business tax return. Your reasonable salary also depends on your role and market pay, not a target number. For the full picture, see our S Corp taxes guide.
When each stage may fit
The IRS doesn’t set an income threshold for any of these stages. If tax savings are your main motivator for electing S Corp status, the election makes sense when the savings potential is greater than the cost of the extra work. These patterns can help you gauge where you are:
| Staying a sole proprietor may fit if you | Forming an LLC may fit if you | Electing S Corp status may fit if you |
|---|---|---|
| Are new or still testing your business | Have growing momentum and want a more established business | Have steady, consistent profit and will continue self-employment for more than a year |
| Want the simplest possible setup | Want liability protection and a clear line between business and personal | Are ready for payroll and more detailed books, or want support with both |
| Have modest or unpredictable income | Aren’t sure yet whether an S Corp makes sense | Have been self-employed long enough to feel confident the business will continue |
For a closer look at the S Corp math, see Is an S Corp worth it?
How to move from a sole proprietorship to an S Corp
If an S Corp does make sense, the path runs through an eligible legal structure, like a single-member LLC:
- Form an LLC and update your business foundations, including your name, EIN, bank account and client paperwork.
- Decide when to elect. Many owners run as an LLC for a while before electing S Corp status, and some never do.
- File Form 2553 within the deadline window. See our guide to the S Corp election deadline for timing and filing details.
- Set up payroll from your effective date. Our S Corp payroll guide covers setup.
- Plan for your new filings. To keep every date in one place, download Collective’s free tax calendar.
Questions about sole proprietorships and S Corps
Can a sole proprietor hire employees?
Yes. A sole proprietor can hire employees, but you’ll need an EIN and payroll in place. That said, as the owner, you can’t put yourself on payroll; only an S Corp or C Corp lets you pay yourself a formal salary as an employee.
Can I go back to a sole proprietorship after electing S Corp status?
Yes, but it takes several steps. When an LLC elects S Corp status, the IRS treats it as a corporation, so revoking the S Corp election leaves the LLC taxed as a C Corp. To return to default single-member LLC tax treatment, you then file a separate entity classification form (Form 8832), and timing limits may apply. At this stage, your SMLLC remains in place for liability protection and your tax reporting returns to its simpler form (i.e. reporting on Schedule C).
Finally, to fully return to being a sole proprietor, you dissolve the LLC with your state. Because each step has its own rules, consequences and timing, it’s worth talking with a tax professional before you start.
Do I get new tax deductions when I form an LLC or elect S Corp status?
No. Business deductions don’t depend on how your business is structured or how you report your taxes. Sole proprietor, LLC or S Corp, you can deduct expenses that meet the IRS criteria, meaning they’re ordinary and necessary for your business. Changing your structure changes how your income is taxed and reported, not which expenses qualify.
Can I skip the LLC and go straight to an S Corp?
No, and it’s one of the most common questions we hear. An S Corp is a tax election, not a business structure, so it needs a legal entity to attach to. As a result, a sole proprietor first needs to form an LLC (or a corporation) with their state. Only then can the business file Form 2553 to elect S Corp status, assuming the owners meet the criteria for S Corp eligibility.
Choosing the right stage for your business
Ultimately, a sole proprietorship, an LLC and an S Corp serve different stages of a business. A sole proprietorship keeps things simple while you build. An LLC, meanwhile, adds structure and protection as momentum grows. An S Corp can then make sense once your profit is steady and the potential savings outweigh the extra work. Either way, the best setup is the one that fits your business today, with room to change as it grows.
Generally, businesses of all types can elect S Corp status, as long as they meet the eligibility rules. Collective is built specifically for single-owner businesses, from LLC formation and the S Corp election to payroll, bookkeeping and tax filings for Business-of-One owners. Learn more about Collective.
This content is for educational purposes only and does not constitute legal, financial, or tax advice.
