S-Corp State Taxes for Physicians: CA, NY & NJ

Jun 29
9 min read

You filed Form 2553, set a reasonable salary, and started taking the rest of your practice income as distributions. On your federal return, the S-Corp election is doing exactly what you hoped: it trims the self employment tax you pay on your earnings. Then your state return shows up, and part of that savings quietly disappears.

That is the piece of the S-Corp decision that often gets left out of the math. The federal benefit is real, but it does not always survive intact at the state level. A handful of states tax S-Corps in ways that have no federal equivalent, and three of the most significant for physicians are California, New York, and New Jersey.

If you practice in, or are incorporated in, any of these states, the state level cost belongs in your planning before you elect, not after the first return is filed. The full election decision, including whether it pencils out for you at all, runs through S-Corp for Physicians: Is It Right for You?. This piece narrows in on what these three states cost an S-Corp and how that changes the picture.

In This Blog

Why Do State Taxes Matter When You Elect S-Corp Status?
How Does California Tax a Physician S-Corp?
Does the California Franchise Tax Cancel Out Your S-Corp Savings?
How Does New York State Tax an S-Corp?
Why Does a New York City S-Corp Still Owe Corporate Tax?
How Does New Jersey Tax an S-Corp?
How Should These State Taxes Change Your S-Corp Decision?
FAQs

Why Do State Taxes Matter When You Elect S-Corp Status?

At the federal level, an S-Corp is a pass through. The corporation itself generally pays no income tax. Instead, the income flows through to you, and the planning benefit comes from splitting your earnings into a reasonable salary, which is subject to payroll tax, and distributions, which are not.

States do not all follow that federal treatment. Some of them impose a tax at the corporate level anyway, on the same income that is already passing through to you. A franchise tax is one common example. It is a charge for the privilege of doing business in the state, and it is separate from income tax, which means you can owe it even in a year when the corporation breaks even.

The result is that the same S-Corp election can be a clear win in one state and a much closer call in another. If you work across state lines, including as a locum tenens physician, where you are incorporated and where you earn the income both matter.

How Does California Tax a Physician S-Corp?

California is the state where the federal benefit erodes the most. California recognizes the S-Corp election, but it still taxes the corporation directly.

A California S-Corp pays an annual franchise tax equal to the greater of two amounts:

1.5% of the corporation's net income, OR An $800 minimum, owed even if the corporation has no income or operates at a loss.

Newly incorporated or qualified corporations are exempt from the $800 minimum in their first taxable year, although first year net income is still subject to the 1.5% rate. The tax is reported on California Form 100S and is administered by the Franchise Tax Board.

The point that matters for planning is that the 1.5% is an entity level tax. A sole proprietor in California does not pay it. So when you elect S-Corp status in California, you are trading federal self employment tax savings against a new state cost that did not exist before.

Does the California Franchise Tax Cancel Out Your S-Corp Savings?

Not usually, but it does take a real bite. Take Dr. Patel, the emergency medicine physician from our main S-Corp piece. She nets $400,000 through her solo PLLC and pays herself a $250,000 reasonable salary, which leaves about $150,000 of S-Corp net income passing through to her.

The California franchise tax on that income works out like this:

S-Corp net income after the reasonable salary	$150,000
1.5% franchise tax	1.5% x $150,000 = $2,250
$800 minimum	$800
Amount owed	The greater of the two: $2,250

That $2,250 is money Dr. Patel would not owe as a sole proprietor. It does not erase the federal payroll tax savings from her salary and distribution split, but it offsets part of them. Whether the election still comes out ahead depends heavily on how that split is set, which is why a defensible salary matters so much in a high tax state. Our breakdown of reasonable salary by specialty covers how physicians land on that number.

How Does New York State Tax an S-Corp?

New York is more favorable to S-Corps than its reputation suggests, with one important wrinkle.

First, the election is not automatic in New York. A federal S-Corp has to file Form CT-6 to be treated as a New York S-Corp. Skip that step, and New York can tax the corporation as a C-Corp, which is a far worse outcome.

Once you have made the New York election, the corporation pays a fixed dollar minimum tax based on its New York receipts. For most businesses this ranges from $25 at the low end to $4,500 at the high end. Compared with California's percentage based franchise tax, that is a modest, capped cost.

You may have heard about New York's MTA surcharge and wondered whether it eats into S-Corp earnings. For an S-Corp, it does not. The MTA surcharge applies to corporations taxed under Article 9-A in the metropolitan commuter region, and New York S corporations are not subject to it. There is a separate payroll based item, the metropolitan commuter transportation mobility tax, that can apply to the wages your S-Corp runs through payroll in the New York City area, but that is a payroll cost tied to the salary, not the corporate surcharge. We cover the payroll side state costs in the reasonable salary piece linked above. For your S-Corp at the entity level, the New York State cost is the fixed dollar minimum tax.

Why Does a New York City S-Corp Still Owe Corporate Tax?

One piece is easy to miss if you practice in the five boroughs.

New York City does not recognize the S-Corp election at all, neither the federal election nor the New York State one. A corporation doing business in the city is subject to the General Corporation Tax, or GCT, regardless of what its federal return shows.

The GCT is calculated under four methods, and the corporation pays whichever produces the largest amount. The most common is 8.85% of net income allocated to New York City. The corporation files on Form NYC-3L or the shorter NYC-4S, and you still report the pass through income on your personal return New York City General Corporation Tax.

In practical terms, an S-Corp earning income inside New York City faces an entity level tax that looks a lot like the double taxation an S-Corp is supposed to avoid. The GCT generally applies only to income generated from activity within the city, so if your income is largely earned outside the five boroughs, you may have limited exposure. For a city based practice, though, the 8.85% is the real cost to plan around, and it deserves more attention than the state level number.

How Does New Jersey Tax an S-Corp?

New Jersey is comparatively gentle on S-Corps, but it has a trap tied to timing.

New Jersey S-Corps pay a minimum Corporation Business Tax based on New Jersey gross receipts. For most S-Corps this ranges from $375 to $1,500, with a $2,000 figure for certain members of larger affiliated groups. The income itself passes through, and shareholders report their share on their New Jersey Gross Income Tax returns. The minimum tax is reported on Form CBT-100S, New Jersey Corporation Business Tax.

The trap is historical. For privilege periods beginning before December 22, 2022, New Jersey required a separate state S-Corp election on its own form. Filing the federal election was not enough. If your corporation was formed before that date and the state election was never filed, New Jersey may have been taxing you as a C-Corp the whole time. For privilege periods beginning on or after December 22, 2022, the separate election is no longer required, and federal S-Corp status carries over automatically once the corporation is registered and the shareholders consent.

What about New Jersey's 2.5% surtax?

That charge, sometimes called the Corporate Transit Fee, applies to C-Corps with New Jersey allocated taxable net income over $10 million. For a typical physician S-Corp, it does not come into play. If you have been told New Jersey's surtax threatens your S-Corp savings, it is worth confirming, because for most physician practices the relevant New Jersey cost is the modest minimum tax, not the surtax.

How Should These State Taxes Change Your S-Corp Decision?

The honest answer is that the right move depends on your state, and the differences are large.

In California, build the 1.5% franchise tax into your projection. It rarely flips the decision on its own, but it shrinks the margin, so your salary and distribution split has to be set carefully to keep the election worthwhile.
In New York State, the fixed dollar minimum tax is small and capped. Just be certain Form CT-6 is filed so you actually get S-Corp treatment.
In New York City, treat the 8.85% GCT as the main event. For a city-based practice, it can change the analysis significantly.
In New Jersey, the minimum tax is light. The thing to verify is your election status, especially for older entities.

Two planning items are worth raising before you file. The first is the pass through entity tax that California, New York, and New Jersey each offer, which can help owners work around the federal cap on state and local tax deductions. The second is simply revisiting the election if a move or a change in where you practice has shifted the math. If a state cost has turned a once favorable election into a drag, Revoking an S-Corp Election walks through how that works.

For group practices with multiple physician owners, the entity level math compounds across owners and the comparison with other structures matters even more, which our S-Corp vs Partnership for Physician Groups piece covers in detail. And if you realize you should have elected earlier than you did, there is relief available for a late election in Late S-Corp Election Relief (Rev. Proc. 2013-30).

Next Steps

State level taxes can change whether an S-Corp election actually saves you money, and the answer in California is not the answer in New York or New Jersey. This is the kind of question proactive tax planning is built to answer before you file, not after.

Doc Wealth is physician founded, and your tax team, an elite team of Tax Attorneys, CPAs, and Enrolled Agents, handles multi-state S-Corp questions every day. They can weigh the federal savings against your state's cost, confirm your election is filed correctly, and model the salary and distribution split alongside the state pieces so the plan holds together. With proactive, year round tax planning, a question or deadline that comes up later gets prompt, dependable communication from the team that already knows your file.

Book an intro call with Doc Wealth

FAQs

Does electing S-Corp status still save money in California?

It often does, but California's 1.5% franchise tax reduces the net benefit. The election tends to work when the self employment tax saved on your distribution share is larger than the franchise tax and the added cost of running payroll and a separate return. Because the margin is tighter in California, the salary and distribution split has to be set with care.

Are New York S corporations subject to the MTA surcharge?

No. The MTA surcharge applies to corporations taxed under Article 9-A in the metropolitan commuter region, and New York S corporations are not subject to it. A New York S-Corp's entity level cost is the fixed dollar minimum tax based on New York receipts.

Why does my New York City S-Corp owe corporate tax if it is an S-Corp?

Because New York City does not recognize the S-Corp election. The city taxes the corporation under the General Corporation Tax, most commonly at 8.85% of net income allocated to the city, no matter what your federal return shows. You still report the pass through income on your personal return as well.

Do I need to make a separate S-Corp election in New Jersey?

Not for privilege periods beginning on or after December 22, 2022. Federal S-Corp status now carries over automatically once the corporation is registered with New Jersey and the shareholders consent. Older entities should confirm a state election was made, because before that date New Jersey required a separate filing, and missing it meant being taxed as a C-Corp.

Which state is hardest on physician S-Corps?

For most physicians, California's 1.5% franchise tax is the largest recurring entity-level cost, followed by New York City's 8.85% General Corporation Tax for practices earning income inside the city. New York State and New Jersey impose comparatively small minimum taxes by comparison.

This material is intended for educational and informational purposes only and does not constitute tax, legal, accounting, or financial advice. The content is general in nature and may not apply to your specific circumstances. Tax laws and financial regulations are subject to change and interpretation, and the application of these laws can vary based on individual situations. Before making any decisions, you should consult with a qualified tax advisor, legal counsel, or financial professional.