How to Complete and File New York Form CT-3 Franchise Tax Return

New York Form CT-3 is the annual franchise tax return filed under Article 9-A by general business corporations operating in the state. You compute tax under three separate bases — business income, capital, and a fixed dollar minimum — and pay whichever produces the largest amount. Calendar-year filers are due March 15, most corporations must file electronically, and even an unprofitable corporation owes at least the fixed dollar minimum.

Who Has to File

Article 9-A reaches broadly. You file Form CT-3 if your corporation is incorporated in New York, or if it is a foreign corporation that does business, employs capital, owns or leases property, maintains an office, or derives receipts from activity in the state. A foreign corporation acting as a general partner in a New York partnership also files, and even a foreign limited partner can be pulled in if the corporation participates in or controls the partnership’s New York business.¹

Profit is irrelevant. The fixed dollar minimum means every filer pays something regardless of whether the year closed in the black or the red.

A few entities file something else. New York S corporations file Form CT-3-S once the Tax Department approves their S election.² Insurance corporations are taxed under Article 33 and use their own returns.³ Certain exempt organizations, housing companies, and other entities listed in Tax Law § 209(4) are excluded from Article 9-A entirely.

What to Gather Before You Start

Pull these together before you open the form:

A complete copy of your federal Form 1120 (or 1120 consolidated, 1120-F, or variant). You attach it to the CT-3, and most line items flow from it.⁴
Your federal Employer Identification Number.
The six-digit NAICS code for your principal New York business activity, from NYS Publication 910.
A balance sheet showing total assets, liabilities, and stockholders’ equity at year-end, which feeds the capital base calculation.
Receipts data split between New York and everywhere, broken out by type (goods, services, royalties, and so on) for the apportionment factor.
Last year’s CT-3, for comparison and to pick up any carryforwards.

Download the current year’s form and instructions directly from the New York Department of Taxation and Finance. Using an outdated version is one of the quickest ways to trigger a processing delay.

How the Tax Is Calculated

The core of Form CT-3 is a three-way comparison. You compute tax under the business income base (Part 3), the capital base (Part 4), and the fixed dollar minimum (Part 6), then pay whichever is highest.⁵ For most corporations the business income base wins, but smaller or capital-heavy companies can land on one of the other two.

Business Income Base

Start with federal taxable income from Form 1120 and apply New York additions and subtractions — adding back items like state and local tax deductions, subtracting certain exempt income. The rate then depends on your size and type:⁵

6.5% for general business taxpayers with a business income base of $5 million or less.
7.25% for general business taxpayers with a business income base above $5 million. This is a cliff rate: cross $5 million and the entire base is taxed at 7.25%, not just the excess.⁶
4.875% for qualified emerging technology companies.
0% for qualified New York manufacturers.

Capital Base

The capital base tax is 0.1875% of total business capital apportioned to New York, capped at $5 million in tax.⁷ Qualified New York manufacturers, qualified emerging technology companies, cooperative housing corporations, and small business taxpayers pay 0% on this base.

Fixed Dollar Minimum

Every corporation owes at least a fixed amount based on New York receipts, even if the income and capital computations come out lower. The schedule for general business taxpayers:⁵

$25 for receipts of $100,000 or less
$75 for over $100,000 to $250,000
$175 for over $250,000 to $500,000
$500 for over $500,000 to $1 million
$1,500 for over $1 million to $5 million
$3,500 for over $5 million to $25 million
$5,000 for over $25 million to $50 million
$10,000 for over $50 million to $100 million
$20,000 for over $100 million to $250 million
$50,000 for over $250 million to $500 million
$100,000 for over $500 million to $1 billion
$200,000 for over $1 billion

Qualified New York manufacturers and qualified emerging technology companies use a reduced minimum schedule that tops out at $3,750.

Apportionment for Multi-State Corporations

Corporations operating both inside and outside New York don’t pay tax on their entire income or capital. You apportion using a single receipts fraction computed in Part 6: New York receipts over total receipts everywhere.⁸ Property and payroll factors no longer apply here.

Sourcing rules under § 210-A vary by receipt type. Revenue from tangible goods is sourced to the delivery destination. Service receipts are sourced to where the customer benefits from the service. Royalties, interest, and other categories each follow their own rules, all detailed in the CT-3 instructions and the statute itself. A small error in the numerator can shift thousands of dollars in tax, so this is the part of the return most worth double-checking.

MTA Surcharge for MCTD Corporations

If your corporation does business in the Metropolitan Commuter Transportation District, you owe an additional surcharge reported on Form CT-3-M, filed alongside your CT-3. The MCTD covers twelve counties: New York (Manhattan), Bronx, Kings (Brooklyn), Queens, Richmond (Staten Island), Dutchess, Nassau, Orange, Putnam, Rockland, Suffolk, and Westchester.⁹

The surcharge applies if your MCTD receipts are $1.283 million or more. For a unitary group, the threshold applies to the group’s aggregate MCTD receipts, but each member must individually have at least $12,000 in MCTD receipts to be counted. The surcharge rate has changed several times in recent years, so check the current CT-3-M instructions for the rate that applies to your tax year.

Deadline, Extensions, and Estimated Tax

Calendar-year corporations file Form CT-3 by March 15 of the following year. Fiscal-year filers have until the 15th day of the third month after their tax year ends.⁴ If the due date falls on a weekend or legal holiday, it moves to the next business day.

For more time, file Form CT-5 on or before the original due date to request a six-month extension. You must pay your properly estimated tax with the request; the extension gives you more time to file, not more time to pay.¹⁰ If six months still isn’t enough, Form CT-5.1 lets you request an additional three months, provided you have a valid reason and filed the original CT-5 on time.¹¹

If your corporation’s franchise tax after credits exceeded $5,000 two years ago, you owe a mandatory first installment (MFI) on Form CT-300, due by the 15th day of the third month of your current tax year.¹² The MFI is calculated as a percentage of that second-preceding year’s tax: 25% if that tax was more than $5,000 but not more than $100,000, or 40% if it was more than $100,000.

After the MFI, the remaining estimated tax is paid in three equal installments on Form CT-400. For calendar-year taxpayers, those fall on June 15, September 15, and December 15.¹³ To figure each installment, subtract the MFI from your total estimated tax for the year and divide by three.

How to File and Pay

New York requires electronic filing for corporations that prepare their own returns using approved e-file software and have broadband internet access. If you use a tax professional who files electronically, the mandate applies to them as well.¹⁴ You can e-file through approved commercial software or through New York’s Online Services portal.

Payment options for e-filed returns include ACH debit (the state pulls from your account), ACH credit (you push the payment through your bank), or a paper check mailed with Form CT-200-V, the payment voucher for e-filed returns.

Corporations that qualify for paper filing — generally those preparing returns by hand without software — mail the completed return to:

NYS Corporation Tax
PO Box 15181
Albany, NY 12212-5181⁵

Paper returns take considerably longer to process. Keep your confirmation receipt or proof of mailing in case a dispute arises about whether you filed on time.

Penalties for Late Filing and Underpayment

Filing late triggers a penalty of 5% of the unpaid tax for each month or partial month the return is overdue, up to 25%. If the return is more than 60 days late, the minimum penalty is the lesser of $100 or the total tax due.¹⁵ Interest also accrues on unpaid balances at a rate set quarterly by the Tax Department.

Separately, corporations that underpay estimated tax installments face an underpayment penalty calculated for each missed or short installment, running from the installment due date to the payment date at the interest rate under Tax Law § 1096(e). Form CT-222 lets you claim relief through methods like the annualized income installment method or the adjusted seasonal installment method, which can help if your income is uneven across the year.¹⁶

Penalties can sometimes be waived for reasonable cause. If you can show the failure was not due to willful neglect, the Tax Department has authority to reduce or remove the penalty.¹⁵ “I forgot” and “my accountant was busy” rarely qualify.

After You File

Keep a copy of the filed CT-3, all supporting schedules, and the federal return you attached. New York can audit corporate returns for up to three years from the filing date or the original due date, whichever is later, and the window extends to six years if you underreported income by more than 25%. Retaining corporate tax records for at least seven years covers most audit scenarios, and records like board minutes, bylaws, and financial statements are worth keeping indefinitely.

If the IRS later changes your federal taxable income, you must file an amended New York return (Form CT-3.3 or CT-3.4) within 90 days of the federal change. Failing to report a federal adjustment is one of the more common ways corporations stumble into a penalty they could have avoided.

1
New York State Department of Taxation and Finance. Article 9-A — Franchise Tax on General Business Corporations
2
Department of Taxation and Finance. Instructions for Form CT-3-S New York S Corporation Franchise Tax Return
3
New York State Senate. New York Tax Law Section 1510 – Additional Franchise Tax on Insurance Corporations
4
New York State Department of Taxation and Finance. CT-3 New York General Business Corporation Franchise Tax Return
5
Department of Taxation and Finance. Instructions for Form CT-3 General Business Corporation Franchise Tax Return
6
New York State Senate. New York Tax Law Section 210 – Computation of Tax
7
New York State Department of Taxation and Finance. Definitions for Article 9-A Corporations
8
New York State Senate. New York Tax Law 210-A – Apportionment
9
New York State Department of Taxation and Finance. Instructions for Form CT-3-M General Business Corporation MTA Surcharge Return
10
Department of Taxation and Finance. Instructions for Form CT-5 Request for Six-Month Extension to File
11
Department of Taxation and Finance. Instructions for Form CT-5.1 Request for Additional Extension of Time to File
12
New York State Department of Taxation and Finance. Instructions for Form CT-300 Mandatory First Installment (MFI) of Estimated Tax for Corporations
13
New York State Department of Taxation and Finance. Instructions for Form CT-400 – Estimated Tax for Corporations
14
Department of Taxation and Finance. Electronic Filing Mandate for Business Taxpayers
15
New York State Senate. New York Tax Law TAX Section 1085
16
New York State Department of Taxation and Finance. Instructions for Form CT-222 Underpayment of Estimated Tax by a Corporation