If your business has grown to a certain income level, someone has probably told you to become an S corp to save on taxes. Maybe a colleague, maybe an accountant, maybe a stranger on the internet with a lot of confidence. They are not wrong that an S corp can save real money. But it is a tool with a specific job, not a magic switch, and for plenty of self-employed providers it ends up costing more than it saves.
So before you make the election, here is what an S corp actually does, when it is worth it, and the parts the "just become an S corp" advice tends to skip. None of this is tax advice for your situation. It is the lay of the land, so you can have a sharper conversation with a tax professional, which is where this decision should get made.
What an S corp actually is
An S corp is not a different kind of business. It is a tax election. Contrary to how it usually gets talked about, you do not go out and form an S corp. You have an LLC or a corporation, and you file a form with the IRS asking to have it taxed as an S corporation. Your business stays exactly what it was under state law. What changes is how the income is taxed.
How it saves you money, when it does
As a sole proprietor, all of your business profit is subject to self-employment tax, which is 15.3 percent for Social Security and Medicare, on top of your regular income tax.
An S corp splits your pay into two buckets. The first is a salary you pay yourself as an employee of the business, which runs through payroll and is subject to those same Social Security and Medicare taxes. The second is distributions, the profit left over after your salary, which you take as an owner. Distributions are still subject to regular income tax, but they are not subject to that 15.3 percent. That gap is the whole savings. You are moving part of your income out from under self-employment tax.
The catch: reasonable is not optional
This is where people get themselves in trouble. If the savings comes from taking money as distributions instead of salary, the obvious temptation is to pay yourself a tiny salary and call the rest distributions. The IRS knows this, and it does not allow it.
The rule is that you have to pay yourself reasonable compensation for the work you actually do, before you take any distributions. Reasonable means roughly what you would have to pay someone else to do your job. There is no magic percentage, but there is a lot of scrutiny: underpaying yourself to dodge payroll tax is one of the most audited issues for S corps, and if the IRS decides your salary was too low, it can reclassify your distributions as wages and hand you back taxes, penalties, and interest. So the savings only applies to the profit above a genuine salary, not to everything you earn.
When it makes sense, and when it does not
That reasonable-salary rule is exactly what decides whether an S corp is worth it. The savings only exists if there is meaningful profit left after you pay yourself a fair salary. If your business earns roughly what your salary would be and not much more, there is little or nothing to take as distributions, and nothing to save.
There is no universal cutoff, whatever the internet tells you. It depends on your numbers: your profit, a reasonable salary for your role, and the added costs below. It is a cost-benefit calculation, best run with someone who can do the math for your specific situation.
The costs and the work it adds
The other side of the ledger is what an S corp costs you, and this is the part that rarely makes it into the pitch. Once you elect, you are running an actual payroll for yourself, with the quarterly and annual payroll tax filings that come with it. You file a separate business tax return for the S corp every year, plus a Schedule K-1. Your bookkeeping gets more involved, enough that this is often the point where people bring in help, and your tax preparation fees go up, sometimes by a lot. There are state filings too. None of it is impossible, but all of it is ongoing time and money, and it has to be weighed against the tax you would save. If the savings is a few hundred dollars and the added cost is more than that, the election is a net loss. It can also change how your qualified business income deduction works, which is one more reason to run your own numbers rather than a rule of thumb.
The New York layer
If you are in New York, there is an extra piece that catches people. Filing the federal election does not make you an S corp in New York's eyes. The state requires its own separate election, on Form CT-6, signed by all owners. Skip it, and New York taxes your business as a C corporation, which is the worst of both worlds: federal pass-through plus a state-level corporate tax.
Even once you are a New York S corp, the state charges a fixed dollar minimum tax every year, starting at 25 dollars and scaling up with your New York receipts. It is not large at the low end, but it is a standing annual cost, and there is no New York version of the federal safety net for late elections, so the timing matters more here than it does federally.
The timing, if you are considering it
Speaking of timing, the election has a deadline. To have your business taxed as an S corp for a given year, you generally file Form 2553 by March 15 of that year, though you can file any time before then, including now. To be an S corp for 2027, that means filing by March 15, 2027. New York's CT-6 is a separate filing with its own timing.
The practical takeaway: if an S corp is something you are weighing, late fall and winter are the time to run the numbers with a tax professional, not the first week of March. Deciding early gives you room to set up payroll and file both elections without a scramble.
The bottom line
An S corp is a useful tool for the right circumstance, and wasted money and effort for the wrong one. The deciding question is straightforward even when the math is not: does the tax you would save on distributions come out ahead of what the payroll, filings, and added complexity cost you? Above a certain level of profit, it often does. Below it, it often does not. That is a numbers conversation for a tax preparer or CPA who can look at your actual situation, and it is the kind of thing to sort out before a deadline forces the decision. It helps to walk into that conversation prepared.
If you want the full picture before you decide, my What You Need to Know About S Corps guide covers the pieces to understand and the exact questions to ask your accountant before you make the switch!