Look, if you run a successful business, you’ve probably heard someone tell you that you need to be an S-Corp. It’s the most common piece of tax advice floating around out there. But an S-Corp isn’t a magic wand. If you make the election too early, the extra payroll and tax return costs will eat your savings. If you do it too late, you’re just handing the IRS money you should have kept.
Here is the straightforward breakdown of how it actually works, and how to figure out exactly where you stand.
The Self-Employment Tax Trap
When you operate as a Sole Proprietor — or as a single-member LLC, which the IRS taxes exactly the same way — your net profit gets hit with self-employment tax of up to 15.3%, on top of your regular income tax. That’s 12.4% for Social Security plus 2.9% for Medicare.
Here’s the one wrinkle: the Social Security half stops once your earnings clear the annual wage base ($184,500 in 2026). Above that, only the 2.9% Medicare piece keeps running. But for most growing businesses, you’re paying close to the full 15.3% on nearly everything you make — and it adds up fast.
An S-Corp fixes this by splitting your income into two buckets:
- A Reasonable Salary: You run payroll for yourself. This portion is subject to the 15.3% tax.
- Distributions: You take the rest of your profit as a distribution. This portion completely bypasses that 15.3% self-employment tax.
It’s simple math. But doing that math in your head doesn’t work.
Stop doing the mental math. Plug your current net income into our free LLC vs. S-Corp calculator and see your exact estimated savings.
Open the LLC vs. S-Corp Calculator →The New York (and NYC) Catch
We handle tax clients nationwide, but because we’re based right here in New York, we know exactly how the local laws complicate this. And if you’re doing business in the five boroughs, the game completely changes.
Here is the kicker: New York City does not recognize the S-Corp election.
While the IRS and New York State let your S-Corp income pass through to your personal return, NYC ignores that. It treats your S-Corp like a traditional C-Corporation and applies the NYC General Corporation Tax (GCT) at 8.85% on your NYC-sourced net income. Add the NY State filing fees and the LLC publication requirement, and suddenly you’ve got an extra layer of tax.
One thing worth knowing: the GCT only applies to income from business done in the city. An S-Corp operating out here on Long Island with no NYC nexus doesn’t pay it at all. But if you’ve got city activity, you have to run the numbers to make sure the federal self-employment tax savings actually outweigh that NYC corporate tax hit.
The PTET Upside — Updated for 2026
But there’s a real upside for NY businesses: the Pass-Through Entity Tax (PTET). It lets your business pay your state and city income taxes at the entity level, where they’re fully deductible federally — no cap.
Now, you may have heard the SALT deduction got better. It did: the old $10,000 cap jumped to $40,000 for 2025 ($40,400 for 2026) under the new federal law. But that doesn’t make PTET obsolete — and for a lot of business owners it makes it more valuable. That higher cap phases down once your income passes $500,000 and lands right back at $10,000 for high earners around $600,000. Those are exactly the people who benefit most from moving the deduction to the entity level, where there’s no cap at all. PTET also lowers your income for AMT purposes, which a regular SALT write-off doesn’t.
The catch is timing. PTET runs on an annual election plus required estimated payments. Miss the election window and you forfeit it for the whole year. Miss the quarterly payments and you’re into penalties and interest. The deadlines aren’t optional.
We Handle This Nationwide
Now, what if your business is registered in New York, but you have remote employees in Texas, or you live out of state?
State lines don’t limit your strategy. Over 30 states now have their own versions of the PTET workaround. Whether your entity is registered on Long Island, in New Jersey, or in California, we analyze your entity structure against your specific state’s tax landscape. We handle multi-state compliance so you don’t have to.
Ready to make the switch? Run your final numbers through our calculator. If the savings make sense, don't try to file the paperwork and set up payroll alone — let's get a quick 15-minute call on the calendar to build your transition plan.
Book a 15-minute call →This article is general information, not tax advice. The right structure depends on your numbers, your state, and where you do business. Run the calculator, then let's talk through your specific situation.