MTA Surcharge Tax: Who Pays, the 30% Rate, and MCTD Allocation

The MTA surcharge tax is a 30 percent add-on to New York’s corporate franchise tax, imposed on the share of a corporation’s activity that occurs inside the twelve-county Metropolitan Commuter Transportation District (MCTD). It applies to corporations taxed under Articles 9, 9-A, and 33 of the New York Tax Law and funds the subway, bus, and commuter rail network serving the New York City region.

Who Owes the Surcharge

Every corporation subject to franchise tax under Articles 9, 9-A, or 33 owes the surcharge if it exercises its corporate franchise, does business, employs capital, owns or leases property, maintains an office, or earns receipts from activity within the MCTD. New York S corporations are explicitly carved out and owe nothing at the corporate level.¹ C corporations and insurance companies carry the full obligation.

Being incorporated outside New York does not exempt a company. A foreign corporation that does business, owns property, or derives receipts from activity inside the district must file and pay.²

The Twelve Counties That Count

The MCTD splits into two zones. Zone 1 is the five boroughs: New York (Manhattan), Bronx, Kings (Brooklyn), Queens, and Richmond (Staten Island). Zone 2 covers Dutchess, Nassau, Orange, Putnam, Rockland, Suffolk, and Westchester.³

Activity outside those county lines does not count. A company with offices in both Westchester and Albany would owe the surcharge only on the share tied to Westchester, which is why keeping records that separate MCTD activity from the rest of the state matters. The apportionment formula depends on that split.

The 30 Percent Rate

For tax years beginning on or after January 1, 2024, the surcharge equals 30 percent of the base franchise tax, calculated before any tax credits are applied.¹ The 30 percent does not hit the entire franchise tax. It applies only to the portion allocated to activity within the MCTD. Form CT-3-M lays this out: the MCTD-allocated base tax is multiplied by 0.30 to produce the surcharge.⁴

The statute contains no sunset for the 30 percent rate, which remains in effect for the 2026 tax year absent new legislation.

How the MCTD Allocation Is Calculated

Because most corporations operate both inside and outside the twelve-county zone, the surcharge uses a three-factor formula to isolate the share of activity within the MCTD. Each factor is expressed as a percentage of the corporation’s statewide totals:¹

Property. The average value of real and tangible personal property owned or rented within the MCTD, divided by the same figure for all of New York State. Owned property is measured at adjusted federal tax basis; rented property is valued at eight times annual gross rent.
Receipts. Receipts sourced to the MCTD, divided by total New York State receipts, following the market-based sourcing rules in Section 210-A.
Payroll. Wages and salaries paid to employees working within the MCTD (excluding general executive officers), divided by the same statewide figure.

The three percentages are added and divided by three to produce the MCTD allocation percentage. That percentage is applied to the pre-credit franchise tax, and the result is multiplied by 30 percent. A company with 60 percent of its New York receipts, 50 percent of its property, and 40 percent of its payroll in the MCTD lands at a 50 percent allocation, so the surcharge hits half the base tax.

This three-factor approach is specific to the MTA surcharge. The main Article 9-A apportionment to New York State generally uses a single receipts factor. The MCTD formula adds property and payroll back in, so corporations with heavy real estate or staffing inside the district see a higher allocation than those whose only in-district connection is customer sales.

When Out-of-State Businesses Get Pulled In

An out-of-state corporation can trigger New York franchise tax, and with it the MTA surcharge, without any physical presence. New York taxes corporations deriving $1 million or more in receipts from New York sources in a taxable year. If those receipts are concentrated in the MCTD counties, the surcharge follows.

Federal Public Law 86-272 historically protected companies whose only in-state activity was soliciting sales of tangible personal property. New York has narrowed that shield through regulations effective retroactively to 2015. Operating a website that offers interactive customer support, such as live chat or after-sale email assistance accessible to New York users, may be treated as activity exceeding mere solicitation and can strip P.L. 86-272 protection. A static FAQ page still qualifies as protected solicitation.⁵

Forms, Deadlines, and Estimated Payments

General business corporations file Form CT-3-M alongside their regular Form CT-3 or CT-3-A franchise tax return. The form walks through the three-factor allocation and applies the 30 percent rate.⁶ Insurance corporations file their own version, Form CT-33-M, under Article 33, Section 1505-a.⁷

To fill out the return, gather these figures broken out for both the MCTD and New York State as a whole:

Adjusted tax basis of owned real and tangible personal property, plus eight times annual gross rent for leased property.
Gross receipts sourced under the Section 210-A market-based rules.
Total wages and salaries, excluding general executive officers.

Most businesses file electronically through the Department of Taxation and Finance’s Web File portal. Payment runs through ACH debit, credit card, or a mailed check with a voucher.

Larger corporations cannot wait until the return due date to pay. If an Article 9-A C corporation’s franchise tax after credits exceeded $5,000 in the second preceding year, it must make a mandatory first installment of estimated tax, including the estimated MTA surcharge, by the 15th day of the third month of the tax year. For calendar-year filers, that falls in mid-March.⁸ The installment is 25 percent of the second preceding year’s tax when that tax was over $5,000 but not more than $100,000, and 40 percent when it exceeded $100,000.

After the mandatory first installment, corporations expecting to owe at least $5,000 in franchise tax (or $1,000 under Articles 9 and 33) file Form CT-400 and make quarterly estimated payments covering both the franchise tax and the surcharge.⁹ Underpayment carries a separate penalty under Tax Law Section 1096(e).

Extensions, Penalties, and Federal Deduction

Form CT-5 buys a six-month extension to file, covering both the franchise tax return and the surcharge return.¹⁰ It does not extend the time to pay. Any tax owed is still due by the original date, and interest accrues on unpaid balances from that point.

Filing late carries a penalty of 5 percent of the tax due for each month or partial month the return is overdue, capped at 25 percent.¹¹ Interest on unpaid balances runs separately and compounds on top of the penalty. Willful evasion is criminal under Sections 1801 through 1807 of the Tax Law.

On the federal side, C corporations can deduct state franchise taxes, including the MTA surcharge, as a business expense. IRS Publication 535 lists franchise taxes among deductible business taxes, reported on Form 1120 under “Taxes and licenses.” Accrual-basis taxpayers deduct the surcharge when the liability becomes fixed; cash-basis taxpayers deduct it when paid.

Not to Be Confused With the MCTMT

New York imposes a second transit-funding tax with a similar name. The Metropolitan Commuter Transportation Mobility Tax (MCTMT) is a payroll tax on employers and self-employed individuals with payroll expense or net earnings from self-employment within the MCTD. It is separate from the MTA surcharge, applies to a much broader group of filers, and runs on its own schedule and forms. A corporation doing business in the MCTD may owe both: the MTA surcharge on its franchise tax and the MCTMT on its payroll.³

1
New York State Senate. New York Tax Code 209-B – Metropolitan Transportation Business Tax Surcharge
2
New York State Department of Taxation and Finance. Article 9-A – Franchise Tax on General Business Corporations
3
New York State Department of Taxation and Finance. Metropolitan Commuter Transportation Mobility Tax
4
New York State Department of Taxation and Finance. CT-3-M – General Business Corporation MTA Surcharge Return
5
Legal Information Institute. New York Code 20 NYCRR 8-1.2 – Imposition of the Tax Surcharge
6
New York State Department of Taxation and Finance. Instructions for Form CT-3-M General Business Corporation MTA Surcharge Return
7
New York State Department of Taxation and Finance. Form CT-33-M Insurance Corporation MTA Surcharge Return
8
New York State Department of Taxation and Finance. Instructions for Form CT-300 Mandatory First Installment of Estimated Tax for Corporations
9
New York State Department of Taxation and Finance. Instructions for Form CT-400 Estimated Tax for Corporations
10
New York State Department of Taxation and Finance. Instructions for Form CT-5 Request for Six-Month Extension to File
11
New York State Department of Taxation and Finance. Interest and Penalties