If you run a profitable business in California and have spent any time online, you have met the advice: once you are making around $40,000, elect S-corporation status and you will save thousands.
The direction is often right. The number is invented. And the version of the calculation that circulates almost never includes the costs that California adds on top — which is precisely where the break-even moves.
Here is how it actually works.
The thing you are trying to avoid
A single-member LLC with no election is taxed as a sole proprietorship. Every dollar of net profit flows onto your Schedule C and is subject to self-employment tax — the combined Social Security and Medicare contribution that an employee splits with an employer, but which a sole proprietor pays both halves of.
That is the cost you are trying to reduce. Income tax is not affected by the election at all. This point gets lost constantly: electing S-corporation status does not reduce your income tax. It reduces the amount of your profit that is exposed to employment tax.
What the election actually changes
An S-corporation splits your profit into two streams:
- A reasonable salary, paid to you through payroll, subject to employment taxes in the normal way.
- A distribution, which is the remaining profit, not subject to self-employment tax.
The saving is the employment tax you no longer pay on the distribution portion. That is the whole mechanism. It is legitimate, it is extremely common, and it is also exactly why the IRS scrutinises owner salaries so closely — because the lower you set the salary, the more you save, and the more tempting it becomes to set it somewhere indefensible.
The costs nobody puts in the article
This is where the generic advice falls apart for California businesses.
You now have to run payroll. Actual payroll, with deposits, quarterly Forms 941 and DE 9, a W-2 at year end, and workers' compensation coverage. That is a real recurring cost, whether you pay a provider or pay an accountant.
You now file a second tax return. Form 1120-S federally and Form 100S in California, in addition to your personal return. Preparation of a corporate return costs meaningfully more than a Schedule C.
California taxes the S-corporation itself. This is the one that surprises people who read national advice. California does not fully respect the pass-through treatment — it imposes a franchise tax on S-corporations measured on net income, subject to the $800 annual minimum. So a portion of what you saved federally is taken back at the state level.
The $800 minimum applies regardless. Whether the business made money or not, whether you are an LLC or a corporation, California's minimum franchise tax is payable. It is not a reason against electing, but it belongs in the model.
Your reasonable salary is not optional. If you set it too low and the IRS examines the return, they reclassify distributions as wages and assess the employment tax, plus penalties and interest. A defensible salary is one supported by what your role would command in the market, given your hours, duties, experience and the company's revenue.
So where is the break-even?
It is wherever your employment tax saving exceeds your additional costs. Written out, the comparison is:
Saving = employment tax rate × (net profit − reasonable salary)
Cost = payroll administration + additional return preparation + California's entity-level tax + any workers' compensation premium
The break-even is the profit level at which those two lines cross. It moves depending on three things that are different for every business:
- How low a defensible salary is for your role. A software consultant doing skilled billable work cannot justify a low salary. A passive owner of a business run by managers often can. This single variable moves the break-even more than anything else.
- What your compliance costs actually are. A simple one-owner S-corp costs far less to administer than one with three owners, a retirement plan and multi-state payroll.
- Whether you have other wage income. If you already have a W-2 job that has used up the Social Security wage base, the saving from the election shrinks considerably, because the largest component of employment tax is already capped out.
For a typical single-owner California service business with modest compliance needs, the crossover tends to arrive somewhere in the low-to-mid five figures of net profit — but we have modelled businesses where it was much higher, and a few where it never arrived at all.
The mistakes that cost people money
Electing too early. A business making $30,000 in profit that pays $2,500 a year in additional compliance to save $2,000 in tax has made itself poorer and more complicated.
Electing too late. Form 2553 has a deadline — generally within roughly two and a half months of the start of the tax year you want the election to take effect. Miss it and, absent relief, you wait a year. Every year of waiting is a year of paying employment tax on your full profit.
Setting the salary by formula. There is no statutory percentage. The "60/40 rule" people repeat is not in the code, the regulations or any ruling. It is folklore. What matters is whether the figure is defensible for your specific role, and whether you documented why.
Forgetting the state. A model built on federal numbers alone will overstate the benefit for a California business, sometimes substantially.
Not revisiting it. The election that made sense at $80,000 of profit may need the salary revisited at $400,000. The decision is not one-and-done.
What to do about it
Get the calculation run on your actual numbers. It takes an accountant an hour or two with your last two returns and a realistic forecast, and it produces a specific answer rather than a rule of thumb: elect or do not elect, at this salary, saving this much, starting in this tax year.
If the answer is that you should have elected two years ago, there are relief provisions for late elections that are worth exploring. If the answer is not yet, that is worth knowing too — it is one fewer return to file and one less payroll to run until the numbers justify it.
If you would like the comparison run for your business, book a consultation. We will tell you the number, and we will tell you honestly if the answer is no.