Form MTA-305: Employer’s Quarterly MCTMT Return Explained

Form MTA-305 is the quarterly return that employers use to report and pay the Metropolitan Commuter Transportation Mobility Tax (MCTMT) to the New York State Department of Taxation and Finance. This tax funds transportation services within the Metropolitan Commuter Transportation District (MCTD), which covers New York City and several surrounding counties, including Dutchess, Nassau, Orange, Putnam, Rockland, Suffolk, and Westchester.

If your business has employees working within the MCTD and your payroll expenses cross a certain threshold, you’re likely responsible for filing this form every quarter, regardless of whether your company is headquartered inside or outside New York State.

Who Needs to File Form MTA-305

Employers must file this return if they are required to withhold New York State income tax from wages and their payroll expense for covered employees in the MCTD exceeds $312,500 in any calendar quarter. The tax rate applied depends on the size of the employer’s total payroll expense, so businesses need to calculate their liability carefully before submitting payment.

Self-employed individuals doing business within the MCTD are subject to a separate tax and don’t use this particular form — they file under different MCTMT rules for individuals. Form MTA-305 is specifically for employers, meaning corporations, partnerships, and other business entities with payroll obligations in the district.

When the Form Is Due

This is a quarterly filing, and returns are due on the following schedule:

• April 30 for the first quarter (January–March)
• July 31 for the second quarter (April–June)
• October 31 for the third quarter (July–September)
• January 31 for the fourth quarter (October–December)

Missing these deadlines can result in penalties and interest charges, so employers with payroll obligations in the MCTD should build these dates into their regular tax calendar alongside other state and federal filings.

What Information You’ll Need

Before filling out Form MTA-305, gather your payroll records for the quarter, including total wages paid to covered employees working within the MCTD. You’ll need your employer identification number, business name and address, and a breakdown of payroll expense allocated to the district if your operations span multiple locations.

The form itself calculates the tax owed based on your payroll expense bracket, so accuracy in your payroll totals is essential. Errors here can lead to under- or overpayment, both of which create headaches down the line when reconciling with the Tax Department.

How to Fill Out and Submit the Form

The revised 7/23 version of Form MTA-305 is available as a fillable PDF, meaning you can complete it digitally on your computer before printing or submitting it. This is a meaningful convenience compared to older paper-only versions, since it reduces transcription errors and makes it easier to keep a clean digital record of what was filed each quarter.

Once completed, employers typically file electronically through the Tax Department’s Online Services portal, though paper filing remains an option in certain circumstances. Payment of any tax due should accompany the return, whether submitted electronically or by mail.

Keep a copy of every quarterly filing along with your supporting payroll documentation. If your business is ever audited or you need to amend a prior quarter’s figures, having organized records will save considerable time and stress.

Businesses that manage multiple types of tax and property-related paperwork often find it useful to stay organized across the board. For example, property owners dealing with tax escrow changes might reference our guide on Form RP-953 for tax escrow account status changes, while those handling duplicate billing requests can check out our breakdown of Form RP-923 for requesting duplicate tax bills. Nonprofits and businesses that receive charitable contributions may also want to look at our explanation of Form RP-980-A-ACC for acknowledging charitable contributions.

Staying current with Form MTA-305 filings helps avoid unnecessary penalties and keeps your business in good standing with New York State tax authorities. If your payroll expenses fluctuate near the filing threshold, it’s worth reviewing your obligations each quarter rather than assuming last quarter’s filing status still applies.