NY Tax Forms & Resources
Quick access to essential New York State and New York City tax forms for law firms and attorneys
We’ve compiled commonly used New York tax forms and filing resources for law firms, solo practitioners, and legal professionals. All links go directly to official New York State or New York City government websites for the most current versions.
New York State Business Returns
Partnership & LLC / LLP Returns
- Form IT-204 — Partnership Return
- Form IT-204-LL — LLC/LLP filing fee payment form
- Form IT-370-PF — Extension (partnerships & fiduciaries)
- Partnership/LLC current-year forms index
Individual Income (common for partners)
- Form IT-201 — Resident income tax return
- Form IT-203 — Nonresident/part-year resident return
- Form IT-370 — Extension (individuals)
C Corporations (Article 9-A)
- Form CT-3 — General Business Corporation Franchise Tax Return
- Form CT-400 (Web File) — Estimated tax for corporations
- Corporation current-year forms index
New York S Corporations
- Form CT-3-S — NY S Corporation Franchise Tax Return
- NY S corporation forms index
Extensions
Payroll, Withholding & Employment Taxes
Quarterly Withholding & Wage Reporting
- Form NYS-45 — Quarterly Combined Withholding, Wage Reporting, and Unemployment Insurance Return
- NYS-45 Web File info
Deposits of Withheld Tax
- Form NYS-1 (Web File) — Return of Tax Withheld
- Withholding filing methods
Employee Withholding Forms
- Form IT-2104 — Employee’s Withholding Allowance Certificate
- Withholding forms index (current period)
MCTMT (NYC-area employers)
- Form MTA-305 (Web File) — Employer’s Quarterly Metropolitan Commuter Transportation Mobility Tax Return
- Form MTA-305 (paper PDF)
- MCTMT forms index
Sales Tax Registration & Returns
Sales Tax Returns
- Form ST-100 (Web File) — Quarterly Sales & Use Tax Return
- Form ST-100 (paper PDF)
- Sales tax forms index
Register as a Sales Tax Vendor
- Register as a sales tax vendor (online)
- Form DTF-17-I — Instructions (Certificate of Authority registration)
- Form DTF-17.1 — Business Contact & Responsible Person Questionnaire
New York City Business Taxes (NYC DOF)
Unincorporated Business Tax (UBT)
- UBT forms & filing info — Includes NYC-204 / NYC-202 series
- NYC Business Taxes hub
NYC Corporation Taxes
- Business Corporation Tax (BCT) forms — NYC-2 / NYC-2A / NYC-2S
- General Corporation Tax (GCT) forms — NYC-3L / NYC-4S
- Business Tax e-File (BTeF) info
- NYC-EXT (PDF) — Extension request
Need Help with NY Tax Compliance?
Our team helps law firms stay current with New York State and New York City filing obligations, payroll/withholding compliance, sales tax registration, and year-round tax support. We focus on accuracy, consistency, and clean documentation.
Contact us to discuss your tax and accounting needs.
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Note: All forms and resources link directly to official NYS Tax (tax.ny.gov) or NYC Department of Finance (nyc.gov) websites. We recommend always downloading the most current version of forms. Law Ledgers is not affiliated with NYS or NYC government agencies and provides these links as a courtesy.