New York S Corporation Tax: CT-3-S, PTET, and Shareholder Payment Rules

The short version is that New York does not care what you told the IRS. Your federal S election is a deal between you and the federal government, and it binds the federal government. It does not bind New York State. New York runs its own corporate tax system, and it requires its own election, made on Form CT-6, the Election by a Federal S Corporation to be Treated as a New York S Corporation. If you filed Form 2553 with the IRS and stopped there, you are a New York C corporation as far as Albany is concerned, and that is a worse outcome than most owners realize until the first state return is prepared.

Here is what actually happens when you skip CT-6. The federal 2553 tells the IRS to stop taxing the corporation as a separate taxpayer and to pass the income through to shareholders, who report it on their personal returns through the Schedule K-1. New York, without a CT-6 on file, treats the same corporation as a regular business corporation and taxes it under the general business corporation franchise tax. That means the corporation pays New York tax at the entity level on its business income, computed on the long-form Form CT-3, and the shareholders get nothing passed through at the state level to match the federal treatment. You end up with a mismatch: pass-through at the federal level, entity-level corporate tax at the state level. That mismatch creates extra tax, extra complexity, and a state return that looks nothing like the federal one.

The CT-6 itself is a one-time election, not an annual one, which is the part that trips people up in the other direction. You file it once, and it stays in effect for every following year until you revoke it or until you lose your federal S status. New York wants the CT-6 filed on or before the fifteenth day of the third month of the tax year for which you want the election to take effect, the same March 15 timing that governs the federal election for a calendar-year corporation. File it late and New York can push the election to the following year, leaving you taxed as a C corporation for the gap year. We file CT-6 at the same time we set up a new corporate client so the state and federal treatment line up from day one, because cleaning up a missed election after the fact is far more work than filing it on time.

There is a wrinkle worth knowing. New York has a mandatory S election rule for certain corporations. If the corporation’s investment income makes up more than half of its federal gross income, New York can require S treatment whether you elected it or not. But for the ordinary operating business, the rule that matters is the plain one: no CT-6, no New York S corporation, and you default into the general corporate franchise tax. Do not assume the state figured it out from your federal filing. New York and the IRS do not share elections, and the state will not retroactively honor a federal 2553 just because it exists.

None of this changes the fact that the federal return still drives the numbers. Once your CT-6 is on file and New York recognizes the S corporation, the state return starts from the federal Form 1120-S. The corporation’s ordinary business income, the separately stated items, the capital gains, all of it begins with what you already reported to the IRS, and each owner’s share still flows on the federal Schedule K-1. The owners then report that pass-through income on the federal Schedule E on their personal returns. So the CT-6 does not rebuild anything. It simply tells New York to follow the federal pass-through logic instead of taxing the corporation as a standalone C corporation. The federal 1120-S and its K-1s remain the foundation, and the state return rides on top of them.

Why does this matter in dollars? Take a Manhattan consulting corporation with 300,000 dollars of income that elected S status federally but never filed CT-6. As a New York C corporation, that 300,000 dollars gets taxed at the state corporate level, and the owner still pulls the money out and pays personal tax on it, so the income gets hit twice in a way the S structure was supposed to prevent. With CT-6 on file, the income passes through, the owner reports it once on the personal return, and the corporation owes only the franchise minimum. The difference is real money, and it is entirely avoidable by filing one form on time. We handle the CT-6 election and the federal-to-state alignment as part of our tax strategy consulting service, and we keep the entity books accurate through our bookkeeping work so the income that flows from federal to state is right before either return is filed. If you are not certain whether your CT-6 is on file, that is worth checking before the next March 15, not after.

Once New York recognizes your S corporation, it files Form CT-3-S, the New York S Corporation Franchise Tax Return. This is the state-level return that sits next to the federal Form 1120-S, but it does a different job. The federal 1120-S is an information return that splits the corporation’s income among shareholders so they pay the tax personally. New York follows that pass-through logic, but it does not let the S corporation walk away owing nothing. New York imposes a franchise tax on the privilege of doing business as a corporation in the state, and even a pure pass-through S corporation owes at least the fixed-dollar minimum. There is no such thing as a New York S corporation that files CT-3-S and pays zero.

The fixed-dollar minimum is the floor, and it scales with New York receipts rather than with profit. This catches owners off guard, because they assume a low-profit year means a low tax. It does not. The minimum is tied to how much the corporation receives that is sourced to New York, not how much it keeps. The tiers run from 25 dollars at the bottom for a corporation with New York receipts of 100,000 dollars or less, up through the hundreds and into the low thousands as receipts climb, reaching a few thousand dollars for the largest firms with New York receipts in the tens of millions. A startup S corporation with 80,000 dollars of New York receipts owes the 25 dollar minimum. A more established firm with 2 million dollars of New York receipts sits at a much higher tier. The tax tracks revenue into the state, so a high-revenue, thin-margin business can owe a meaningful minimum even in a break-even year.

The word receipts is doing real work here, and it ties into how New York sources income. New York uses a single-receipts-factor allocation to decide how much of the corporation’s activity belongs to the state. The single factor is receipts: the corporation looks at where its customers are, where the work was delivered, where the benefit was received, and assigns a percentage of total receipts to New York on that basis. A Manhattan design studio that bills clients across the country allocates only its New York-sourced receipts to the state, and that allocation percentage drives both the fixed-dollar minimum tier and the broader franchise computation. This single-factor receipts allocation has no analog on the federal 1120-S, which does not care which state the money came from because federal tax applies everywhere. New York cares intensely, and the receipts factor is how it draws the line.

Where do the numbers come from? The CT-3-S starts from the federal return. The corporation pulls its ordinary business income, its separately stated items, and its capital figures straight off the federal Form 1120-S, then applies New York additions and subtractions for the items the state treats differently. So the federal return has to be substantially finished before the CT-3-S can be completed correctly. You cannot do the state return in a vacuum. The federal income drives the state computation, the state modifications adjust it, and the receipts factor allocates it. That is the order, every time.

Timing matters and the rules are strict. The CT-3-S is due March 15 for a calendar-year S corporation, the same day as the federal 1120-S. Both can be extended six months to September 15, the federal one through Form 7004 and the state one through New York’s own extension request. Here is the trap: an extension of time to file is not an extension of time to pay. The franchise tax due on the CT-3-S, including the fixed-dollar minimum, has to be paid by the original March 15 date even if you extend the return to September. New York charges interest and a late-payment penalty on franchise tax paid after March 15, extension or not. So you extend the paperwork, but you still write the check on time.

There is a planning angle in the franchise minimum that owners overlook. Because the minimum scales with New York receipts and not with profit, two corporations with identical profit can owe wildly different franchise minimums depending on where their customers sit. A firm that serves mostly out-of-state clients allocates fewer receipts to New York and lands in a lower minimum tier than an identically profitable firm serving only New York clients. That sourcing is not something you manipulate after the fact, but it is something worth understanding when you plan where the business operates and who it serves. We model the franchise tax and the receipts allocation for corporate clients through our tax strategy consulting service, and we keep the receipts records clean enough to allocate correctly through our bookkeeping work. The CT-3-S is not a formality you can ignore because the S corporation passes income through. The franchise minimum is a real bill, due on a real date, computed off a real allocation, and it is owed every single year the corporation exists.

The Pass-Through Entity Tax is New York’s answer to the federal cap on the state and local tax deduction, and for a New York City business owner it is often the single largest federal planning move on the table. Start with why the cap matters in 2026, because the number is not what most people think. The federal SALT deduction cap for 2026 is 40,400 dollars for single, married filing jointly, and head of household filers, and 20,200 dollars for married filing separately. That cap is higher than the old 10,000 dollar figure, but it phases down. Above 505,000 dollars of modified adjusted gross income, the cap drops by 30 cents for every dollar of income, reaching a 10,000 dollar floor at roughly 606,333 dollars of income. Most of this firm’s New York City clients earn enough to sit right at that 10,000 dollar floor, which is exactly why the PTET still matters for them. The higher cap runs through 2029 and then reverts to a flat 10,000 dollars on January 1, 2030. The 2025 federal tax law preserved the PTET workaround, and it stays sanctioned under IRS Notice 2020-75, so this is an approved structure, not an aggressive position.

Here is the mechanic. Instead of the owner paying New York state and city income tax personally and then losing most of that deduction to the SALT cap, the S corporation elects to pay an entity-level tax. The entity writes the check to New York, deducts that payment in full on the federal return as a business expense, and the owner takes a credit on the personal New York return for the tax the entity already paid. The deduction moves off the personal 1040, where the cap chokes it, and onto the entity return, where there is no cap. The owner is not taxed twice, because the credit on the personal return offsets the New York tax the entity covered. The total New York tax does not change. The federal tax drops. That is the entire point.

The entity-side election is where the deadlines bite. The New York state PTET election is made by March 15 of the tax year itself, not the following year. To elect PTET for 2026, the entity makes the election by March 15, 2026, long before it knows its final 2026 numbers. The election is annual and irrevocable once made through the entity’s Business Online Services account with New York. There is no late election and no reasonable-cause relief for missing the window. Miss March 15 and the workaround is gone for the whole year. The state PTET rate is graduated, starting at 6.85 percent and climbing to 10.9 percent on the slice of pass-through income above 25 million dollars, so for most firms the effective rate sits near the bottom of that range. The entity also makes quarterly estimated PTET payments during the year, due on the fifteenth of March, June, September, and December.

New York actually runs two of these taxes, and the second one is specific to the city. The New York City PTET is a separate election from the state PTET, and it exists because city residents pay a separate New York City personal income tax on top of the state tax, and that city tax was also stuck behind the federal SALT cap. The city PTET is a flat 3.876 percent, which matches the top city resident rate. Here is the rule that catches people: the entity cannot elect the city PTET unless it has already elected the state PTET for the same year. The city election rides on top of the state election. And only the income attributable to city-resident owners feeds the city PTET base, because a nonresident owner does not pay New York City income tax in the first place. So if your S corporation has four owners and only two live in the five boroughs, only those two owners’ shares of income go into the city PTET computation.

Walk through a concrete case. A two-owner New York S corporation has 400,000 dollars of income, both owners live in Manhattan, and the firm elects both taxes. On the state side, the entity pays roughly 6.85 percent on that income, somewhere near 27,000 dollars depending on the bracket math. On the city side, it pays 3.876 percent, about 15,500 dollars. The entity deducts the full 42,500 dollars on its federal Form 1120-S, which at a 37 percent owner bracket saves around 15,700 dollars in federal tax that the SALT cap would otherwise have eaten. The owners then claim credits on their personal New York returns for the state and city tax the entity already paid, so they are not taxed twice. Each owner’s share still flows on the federal Schedule K-1 and lands on their personal return through Schedule E, and the PTET credit washes out the New York tax on it.

One thing to say plainly. The PTET does not reduce your total New York and city tax. You still owe Albany and the city the same amount. The PTET converts a capped personal deduction into an uncapped business deduction, so the savings is purely federal. For a city resident sitting at the 10,000 dollar SALT floor with real pass-through income, that federal savings is substantial, which is why we look at the PTET for every S corporation client with city-resident owners. The decision has to be modeled before March 15, because the election is irrevocable and the deadline does not move. We run that projection through our tax strategy consulting service and keep the income figures that drive it accurate through our bookkeeping work, so the election is a calculated move rather than a year-end scramble.

This is the question that separates a clean New York S corporation return from a problem one, and it comes up the moment even one shareholder lives outside the state. A nonresident shareholder still owes New York tax on the New York-source portion of the S corporation’s income, even though they never set foot in Albany. New York does not just trust that nonresident to file and pay on their own. It makes the entity prepay on their behalf. The mechanism is Form IT-2658, the Report of Estimated Tax for Nonresident Individual Partners and Shareholders, and understanding it is the difference between an entity that stays compliant and one that picks up penalties for nonresident underpayment.

Start with the principle. A New York resident shareholder is taxed on their entire share of the S corporation’s income, no matter where the corporation earned it, because New York taxes residents on everything. A nonresident shareholder is taxed only on the New York-source portion of their share. If the S corporation allocates 60 percent of its income to New York through the single-receipts-factor allocation, a nonresident shareholder picks up 60 percent of their distributive share as New York-source income and ignores the rest. The resident picks up 100 percent. That sourcing split is the whole reason IT-2658 exists, because New York wants its tax on the nonresident’s New York slice paid in during the year rather than chased down after the fact.

Here is how IT-2658 actually works. The S corporation computes the estimated New York tax on each nonresident individual shareholder’s share of New York-source income and remits that tax to New York on the entity’s behalf, in quarterly installments due April 15, June 15, September 15, and January 15. The entity files IT-2658 with each payment, identifying the nonresident shareholders and the amounts paid for each. Those payments are estimated tax credited to the nonresident shareholder, so when that shareholder files their own New York nonresident return on Form IT-203, they claim credit for what the entity already remitted through IT-2658, the same way you claim credit for withholding on a W-2. The entity prepays, the shareholder gets the credit, and New York gets its money during the year.

There are real exceptions, and they matter because filing IT-2658 for a shareholder who is exempt wastes everyone’s time. The entity does not have to remit for a nonresident shareholder whose estimated New York tax for the year is under 300 dollars. It also does not remit for a shareholder who has filed Form IT-2658-E with the entity, the exemption certificate a nonresident signs to certify that they will file and pay their own New York estimated tax directly. A nonresident who is on top of their own filings often signs the IT-2658-E so the entity is not prepaying tax the shareholder intends to handle personally. So before the entity cuts a single IT-2658 check, it should confirm which nonresident shareholders are below the threshold and which have exemption certificates on file, because remitting unnecessarily ties up cash that belongs to the shareholder.

This all connects to the New York K-1 reporting on Form CT-34-SH, the New York S Corporation Shareholders’ Information Schedule. CT-34-SH is the schedule attached to the CT-3-S that reports each shareholder’s share of the corporation’s income, modifications, and credits using New York numbers, and it is where the New York-source amount for each nonresident gets computed. The federal Schedule K-1 tells each shareholder their full federal share, but it says nothing about how much of that is sourced to New York, because the federal government does not care. CT-34-SH does the New York sourcing, separating each shareholder’s New York-source portion from the rest. For a resident, that distinction does not change the answer, since the resident picks up everything. For a nonresident, the CT-34-SH New York-source figure is exactly what drives both the IT-2658 prepayment and the nonresident’s own IT-203.

Contrast the two shareholder types side by side, because the difference is the heart of this. A resident shareholder takes their full federal share off the Schedule K-1, reports it on the federal Form 1040 through Schedule E, and then picks up the entire amount on the New York resident return, Form IT-201, with no IT-2658 prepayment involved because residents are not covered by it. A nonresident shareholder takes the same full federal share for federal purposes, but on the New York side picks up only the New York-source portion from CT-34-SH on the nonresident return Form IT-203, and gets credit there for whatever the entity prepaid through IT-2658. One return type, IT-201, is full inclusion with no entity prepayment. The other, IT-203, is partial inclusion with an entity prepayment credit. Mixing those up is how a nonresident shareholder ends up either overpaying or getting a New York notice.

Picture a three-owner S corporation: two owners in Brooklyn, one in New Jersey, 60 percent of income allocated to New York. The two Brooklyn owners report their full shares on IT-201 and the entity makes no IT-2658 payment for them. The New Jersey owner is a nonresident, so the entity computes New York tax on that owner’s 60 percent New York-source share and remits it quarterly on IT-2658, and the New Jersey owner claims that prepayment as a credit on Form IT-203. If that New Jersey owner had instead signed an IT-2658-E, the entity would skip the prepayment and the owner would handle their own New York estimates. This is exactly the kind of multi-state shareholder coordination we manage for S corporation clients through our tax strategy consulting service, with the nonresident sourcing on CT-34-SH and the personal nonresident returns prepared together through our individual tax return preparation work, so the entity prepayment matches the credit on every shareholder’s return and nobody overpays or gets a notice.

No, and this is the most expensive surprise for business owners who operate in the five boroughs. You can elect S status with the IRS on Form 2553, file CT-6 to get New York State to honor it, and still owe New York City a corporate-level income tax on the same business. New York City simply does not recognize the federal or state S election. It decoupled from S treatment decades ago. As far as the city is concerned, your S corporation is a corporation, and corporations pay the New York City corporate tax. The pass-through treatment that makes the S election attractive at the federal and state level stops dead at the city line.

The tax is the New York City Business Corporation Tax, which almost everyone still calls the General Corporation Tax, or GCT, out of long habit. The rate that matters for most service businesses is roughly 8.85 percent. But here is the part owners miss: the city does not just take 8.85 percent of your income and call it a day. It computes the tax three different ways and makes you pay the highest of the three. The first is a tax on allocated business income at 8.85 percent. The second is a tax on allocated business capital, a measure based on the corporation’s capital base rather than its income. The third is a fixed-dollar minimum tax that scales with the corporation’s gross receipts, running from a few hundred dollars up to a few thousand depending on size. The city computes all three, compares them, and bills you whichever is largest. For a profitable firm the income measure usually wins, so 8.85 percent of city-allocated net income is the number to plan around. For a business with thin profits but real receipts, the fixed-dollar minimum or the capital measure can be the one that controls, so there is no city S corporation that owes nothing.

Run the numbers and the cost is obvious. An S corporation with 500,000 dollars of net income allocated to the city owes roughly 44,250 dollars in city corporate tax at 8.85 percent, before the owner has paid a single dollar of personal tax on the same income. That city corporate tax is not a credit against anything on the owner’s personal city return. It is a flat extra layer that exists only because the business operates in the five boroughs. A freelancer who incorporated in Brooklyn and elected S status to save on self-employment tax often has no idea this is coming until the first city return is prepared, and by then the bill is already due.

Compare this to the state, because the contrast is the point. At the state level, once CT-6 is on file, the S corporation passes income through and owes only the franchise tax, with the fixed-dollar minimum scaling from 25 dollars up. The shareholders pick up the income personally and pay state tax once. The city breaks that pattern. The city taxes the corporation at the entity level on its city-allocated income, and then the owner still pulls the money out and pays personal city income tax on it as a city resident. The same profit gets taxed once by the city at the corporate level through the GCT, and then again at the personal level when it flows through. The state honors the pass-through. The city does not. That single difference is why a structure that works beautifully at the state level can be a poor fit inside the city.

This changes the entire S corporation calculus in New York City. At the federal level, the S election saves real money by splitting the owner’s pay into wages and distributions, with only the wages hit by payroll tax that a sole proprietor would otherwise pay in full through the Schedule SE self-employment computation, and the distributions escaping it. But once you stack the 8.85 percent city corporate tax on top, the math gets murkier. For some businesses the federal payroll-tax savings still outweighs the city corporate tax, and the S election remains the right move. For others, especially smaller operations with most of their income allocated to the city, the GCT eats the savings and a different structure makes more sense. There is no universal answer here, and anyone who tells you an S corporation is always the right choice in New York City has not run the math for your specific numbers.

There is a planning angle that softens the blow, though it does not erase it. The city corporate tax the S corporation pays is itself a deductible business expense on the federal Form 1120-S, so it reduces the federal income that passes through to the owners on the Schedule K-1 and lands on their personal returns through Schedule E. And the city PTET discussed elsewhere on this page is a separate matter from the GCT. The city PTET addresses the owners’ personal city income tax and the federal SALT cap. The GCT is the corporation’s own entity-level tax. The PTET does not eliminate the GCT, and the GCT does not affect the PTET. They are two distinct city tax problems, and both have to be modeled together, because the GCT is what often determines whether the S election is even worth it inside the city. We do that modeling for city S corporation owners through our tax strategy consulting service, and we keep the books clean enough to allocate income to the city correctly through our bookkeeping work. The wrong assumption about the GCT costs five figures a year, so it is worth getting right before you incorporate, not after the city return lands on your desk.