New York S-Corp Conversion: Federal Savings Plus a State-Level Election You Can't Skip.
New York requires its own S-Corp election filing — and NYC-based businesses face a third layer of taxation. Here's exactly what New York business owners need to do.
New York Filing Requirements
Unlike many states that automatically follow the federal S-Corp election, New York requires a separate state-level filing. Missing Form CT-6 means you pay federal taxes as an S-Corp but state taxes as a C-Corp — the worst of both worlds.
File IRS Form 2553 — Federal S-Corp Election
The federal election is filed with the Internal Revenue Service and must be received by the IRS by the 15th day of the 3rd month of the tax year you want S-Corp status to begin (March 15 for calendar-year businesses). This step is the same for business owners in every state.
If you miss the deadline, you can file a late S-Corp election under IRS Revenue Procedure 2013-30, showing reasonable cause. For most businesses, this is granted — but don't rely on it.
File Form CT-6 — New York S-Corp Election
New York State does not automatically conform to the federal S-Corp election. You must separately file Form CT-6 ("Election by a Federal S Corporation to be Treated as a New York S Corporation") with the New York State Department of Taxation and Finance.
- Filing fee: $0 — there is no cost to file Form CT-6
- Deadline: March 15 of the tax year you want NY S-Corp treatment to begin
- Where to file: NYS Department of Taxation and Finance — mail or online through Business Online Services
- All shareholders must consent on the form (signature required)
- The election remains in effect until formally revoked — you do not re-file annually
Consider the NY Pass-Through Entity Tax (PTET) Election
New York's optional PTET allows your S-Corp to pay state income tax at the entity level. The benefit: a federal deduction for state taxes paid, which bypasses the $10,000 SALT deduction cap for the business. For owners in higher NY brackets (6.85%–10.9%), this can be a meaningful additional tax reduction.
Unlike Form CT-6, the PTET election must be made annually by March 15. It is not automatic and does not carry forward. Consult your CPA to evaluate whether it makes sense given your income level and distribution plans.
Register for NYC General Corporation Tax (if you have NYC nexus)
New York City does not recognize S-Corp status. If your business operates in New York City, you are subject to the NYC General Corporation Tax (GCT) regardless of your federal and state S-Corp elections. The NYC GCT applies at 8.85% on NYC-allocated net income, or a fixed dollar minimum, whichever is greater.
- Register with NYC Department of Finance (NYC-2 or NYC-2S return)
- NYC allocates income based on your business activity within city limits
- The GCT applies in addition to your federal and NYS tax obligations — not instead of them
- Small businesses with minimal NYC income may qualify for a reduced minimum tax
Register for Payroll with NYS and NYC (if applicable)
Once you establish S-Corp payroll for the owner, you must register as an employer with the New York State Department of Taxation and Finance. If you have employees or pay wages in New York City, NYC payroll registration may also be required.
- Register through NYS Business Express or the Department of Labor (if withholding NYS income tax)
- NYS income tax withholding is required on W-2 wages paid to yourself and any employees
- Metropolitan Commuter Transportation Mobility Tax (MCTMT) applies if you pay wages in the NYC metro area — rate is 0.34% on wages over $312,500/quarter
- File NYS-45 (quarterly combined withholding) or NYS-45-ATT for each payroll quarter
New York City does not recognize S-Corp status. Your S-Corp income may still be subject to the NYC General Corporation Tax at 8.85% on your NYC-allocated income (or a fixed dollar minimum tax). This is levied at the entity level — in addition to your federal and New York State obligations.
This doesn't eliminate the federal self-employment tax savings that make S-Corp conversion worthwhile. But it is a significant additional compliance burden: a separate return (NYC-2 or NYC-2S), separate registration, and separate quarterly estimated payments to the City.
Most NYC S-Corp owners still benefit from the conversion — the federal SE tax savings typically exceed the NYC GCT cost. But the math is tighter than for upstate New York owners. Run the numbers with a CPA who understands NYC taxation before electing, and factor in the additional accounting fees you'll incur.
The New York Tax Savings Calculation
Example: A business owner in Albany (outside NYC) with $120,000 in net profit. This illustrates the federal SE tax savings that drive the S-Corp decision — state income tax applies similarly in both structures.
| Tax Item | LLC (Single-Member, No Election) | S-Corp ($65k Salary) |
|---|---|---|
| Net Business Profit | $120,000 | $120,000 |
| W-2 Salary (Owner) | — | $65,000 |
| Pass-Through Distribution | — | $55,000 |
| SE Tax Base | $120,000 | $65,000 |
| Federal SE / Payroll Tax (15.3%) | $16,955 | $9,186 |
| NYS Income Tax Rate (at $120k AGI) | ~6.85% | ~6.85% |
| NYS S-Corp Franchise Tax | — | Minimum $25 (most small S-Corps) |
| Payroll Admin / Accounting Add | — | ~$1,000–$2,000/yr |
| Estimated Annual Federal Tax Savings | ~$7,769 / year | |
New York State Income Tax Rates (2025)
New York has a graduated income tax: 4% on the first $17,150, rising to 6.85% at $80,650, 9.65% at $215,400, and 10.3%–10.9% at higher brackets. High-income New York S-Corp owners see the largest state-level benefit from the PTET election (see below), which allows the entity-level state tax to be deducted federally.
New York Pass-Through Entity Tax (PTET)
New York's optional PTET is a layer of tax planning on top of your S-Corp election that can produce meaningful additional federal savings for high-income owners.
What the PTET Does
When an S-Corp elects the PTET, the business pays New York State income tax directly at the entity level, rather than the tax flowing through to individual owners who pay it on their personal returns. The S-Corp gets a federal deduction for the state tax paid — this effectively bypasses the $10,000 SALT deduction cap that applies to individuals.
The owners then receive a credit against their personal New York tax return for the PTET paid, so they're not taxed twice. The net result: a federal deduction for state taxes that would otherwise have been capped.
PTET Tax Rates — New York S-Corps (2025)
The PTET is calculated on the sum of all owners' distributive shares from the entity, using these graduated rates:
Key PTET Rules and Deadlines
The PTET election is annual — it must be made each year by March 15 through the New York Business Online Services account. Missing the deadline means forfeiting the PTET benefit for that tax year. Unlike the CT-6 S-Corp election, which carries forward once made, the PTET election requires active renewal every year.
Estimated PTET payments are due quarterly. The entity must remit estimated payments or face underpayment penalties. Your CPA should include PTET estimates in your quarterly tax planning calendar alongside federal estimated payments.
Who Benefits Most from the PTET
If your New York State income tax exceeds $10,000 (the SALT cap), and your effective NY rate is above the 24% federal bracket, the PTET election will almost certainly produce a net federal tax savings. High-income New York owners — particularly those in the 9.65%–10.9% NYS brackets — see the largest benefit. For owners near the 6.85% bracket with modest incomes, run the numbers carefully with a CPA, as quarterly estimated payment mechanics add complexity.
New York S-Corp — Frequently Asked Questions
Yes — and this is the most common mistake New York S-Corp owners make. New York State does not automatically recognize or conform to the federal S-Corp election. Filing federal Form 2553 with the IRS does not create S-Corp status for New York purposes.
You must separately file Form CT-6 with the New York Department of Taxation and Finance. If you skip this step, your business will be taxed as a C-Corp at the state level (9% New York State corporate franchise tax on net income) while being taxed as an S-Corp federally. This is a costly compliance gap that produces unexpected state tax bills.
No. New York City does not recognize S-Corp status for city tax purposes. The NYC General Corporation Tax (GCT) applies to S-Corps at 8.85% on net income allocated to New York City, or a fixed dollar minimum (currently $25 minimum for most S-Corps, scaling up based on receipts).
This means that if your business has nexus in New York City — operations, employees, or sales within the five boroughs — you must file a separate NYC-2 or NYC-2S return and pay the GCT in addition to your federal and NYS obligations. The GCT is assessed at the entity level; your pass-through income retains its character for federal and NYS purposes, but the city treats the entity as a taxable corporation.
The New York Pass-Through Entity Tax (PTET) is an optional annual election that allows your S-Corp to pay New York State income tax at the entity level, rather than having the tax flow through to individual owners who pay it personally. The critical benefit: the entity gets a federal deduction for the state income tax paid, effectively bypassing the $10,000 SALT cap for federal purposes.
The election must be made annually by March 15. Owners receive a corresponding credit on their personal NY return, so there is no double taxation. For owners in the higher New York tax brackets (9.65%–10.9%), the federal deduction from the PTET can be worth several thousand dollars per year in additional federal tax savings on top of the SE tax savings from the S-Corp election itself.
Whether to elect is a CPA decision that depends on your income, federal tax bracket, and cash flow (since PTET requires quarterly entity-level estimated payments). Most high-income New York S-Corp owners find the election worthwhile.
Form CT-6 must be filed by the 15th day of the 3rd month of the tax year for which you want S-Corp treatment to begin. For calendar-year businesses (which use a January 1 – December 31 tax year), this means March 15.
For example, if you want New York S-Corp treatment to begin January 1, 2026, your Form CT-6 must be received by the New York Department of Taxation and Finance by March 15, 2026. This deadline aligns with the federal Form 2553 deadline, so for most owners, both forms should be filed simultaneously.
Once properly filed, the CT-6 election remains in effect for all subsequent years unless it is formally revoked. You do not need to re-file CT-6 annually.
Yes. The S-Corp election is a federal (and state) tax classification, not an entity type conversion. Your LLC remains an LLC under New York State law — registered with the New York Department of State, governed by your operating agreement, and maintaining its liability protection.
What changes is how the business is taxed: instead of being taxed as a disregarded entity (single-member LLC) or partnership (multi-member LLC), you elect to be taxed as an S-Corporation. You file Form 2553 with the IRS to make the federal election, and Form CT-6 with the New York Department of Taxation and Finance to make the state election. No entity conversion, no new state filings for your legal structure, and no change to your LLC's standing with the New York Department of State.
Ready to Convert Your New York Business?
Choose the level of support that fits your situation. All packages include federal Form 2553 and New York Form CT-6 filing guidance.
- Complete S-Corp conversion checklist
- Form 2553 walkthrough (federal)
- Form CT-6 walkthrough (New York)
- NYC GCT registration guide
- Reasonable salary worksheet
- NYS payroll registration steps
- PTET election decision guide
- Email Q&A support (48hr)
- IRS Form 2553 prepared and filed for you
- NY Form CT-6 prepared and filed for you
- NYC GCT registration if applicable
- NYS employer registration
- Payroll system setup and configuration
- Reasonable salary analysis
- PTET election evaluation with CPA
- First quarterly tax estimates
- CPA coordination support
- Everything in Professional Setup
- Dedicated CPA advisor for 12 months
- Quarterly tax planning calls
- Annual PTET election managed for you
- NYC GCT return preparation (year 1)
- Payroll tax calendar and deposit reminders
- Year-end S-Corp tax return coordination
- Unlimited email and phone support