The short answer: As a sole proprietor, you pay self-employment tax on all your net profit. With an S corporation election, you pay yourself a reasonable wage and the rest of the profit is not hit by self-employment tax. That can save money once profit is steady and meaningful, but the extra work and cost mean it is not worth it for everyone. We can run your numbers together.
How a sole proprietor is taxed
If you file Schedule C, your net profit is taxed in two ways. You pay regular income tax, and you pay self-employment tax, which covers Social Security and Medicare. Self-employment tax applies to your net earnings, so a good year means a bigger bill.
What changes with an S corporation
An S corporation is a company that has made a tax election (Form 2553). An LLC can make this election and stay an LLC. Here is the shift:
- You become an employee of your own company and are paid a reasonable wage. That wage carries the usual payroll taxes.
- The rest of the profit passes through to your personal return. It is still income tax, but it is not subject to self-employment tax.
- The business files its own return, Form 1120-S, and you receive a Schedule K-1 showing your share.
The potential savings come from that second bullet.
| Sole proprietor | S corporation |
|---|---|
| Business profit is reported with the personal return. | The company files its own business return. |
| Net earnings are subject to self-employment tax. | Reasonable wages carry payroll taxes; remaining pass-through profit is treated differently. |
The catch: "reasonable" wages
The IRS expects an owner who works in the business to be paid a reasonable wage for the work they do. You cannot pay yourself almost nothing and take everything as profit. What is reasonable depends on your role, your industry and what the business earns. This is the part people most often get wrong, and it is the part to plan carefully.
What it costs you in time and effort
Savings on self-employment tax are not free. An S corporation generally means:
- A separate business return every year
- Running payroll for yourself, with filings and deposits
- Cleaner books, because owner pay and profit must be tracked separately
- Some states charge their own taxes or fees on S corporations, so check yours
If the tax savings are small, the extra work can eat them up. That is why we do the math before anyone makes a move.
So when does it make sense?
There is no magic number. A good time to take a look is when profit is steady and meaningful, you expect it to stay that way, and your reasonable wage is clearly lower than what the business keeps. If profit is up and down, or low, staying a sole proprietor is often the better call.
Other things to weigh: the effect on certain deductions, how it changes your retirement contributions, and the timing of the election. The deadline to elect is tied to the tax year, so timing matters, and James can guide you on it.
A simple way to picture it
Think of your profit as a pie. As a sole proprietor, the whole pie is exposed to self-employment tax. With an S corporation, one slice becomes your wages and carries payroll taxes, and the rest of the pie is not exposed to self-employment tax. The bigger the pie, and the smaller the wage slice you can reasonably justify, the more the election may help. If the pie is small or the wage slice has to be most of it, there may be little or nothing to gain.
Does it change anything else?
It can. Your take-home pay becomes a regular paycheck, which can make budgeting steadier. It can also change how some deductions and retirement contributions are figured, and your paperwork gets heavier. None of this is a reason to avoid the election. It is a reason to look at the whole picture first, not just the tax line.
Questions to ask yourself
- Is my profit steady, or does it swing a lot?
- Am I willing to run payroll and keep tidier books?
- Do I plan to do this for several years?
If you answered yes to all three, it is worth a look.
Your next step
Curious whether the switch could help you? Request your tax organizer and mention that you want to look at an S corporation. You can also read how all three business returns compare on our business entities page and see what we do for self-employed clients.