New York Unemployment Insurance Reporting Requirements (2025): A Friendly Guide

Introduction

Running a business in the Empire State comes with plenty of paperwork. One of the most important (and confusing) obligations is filing unemployment insurance (UI) reports. Missing a filing or paying late can lead to penalties and trigger an audit. This guide explains New York’s UI reporting requirements for 2025 in straightforward language.

What Is NYS‑45?

Employers in New York must file Form NYS‑45, Quarterly Combined Withholding, Wage Reporting, and Unemployment Insurance Return. This single form combines payroll tax withholding, wage reporting and UI contributions.

Who Must File?

If you pay wages to employees in New York, you must file NYS‑45 each quarter—even if you have no tax due. If you’re a household employer, you may file annually, but most businesses must file quarterly.

Quarterly Due Dates

New York follows a calendar‑quarter schedule. Reports are due the last day of the month following the end of each quarter tax.ny.gov :

Quarter Period Covered Due Date 1 January 1 – March 31 April 30 2 April 1 – June 30 July 31 3 July 1 – September 30 October 31 4 October 1 – December 31 January 31 (next year)

If the due date falls on a weekend or legal holiday, your return is due the next business day tax.ny.gov .

Electronic Filing Mandate

New York strongly encourages employers to e‑file. In fact, most employers must e‑file if they:

Prepare returns using a computer.

Use software to prepare payroll.

Have broadband internet access tax.ny.gov .

E‑filing reduces errors and speeds up processing.

What to Include

Total wages paid to each employee.

UI contributions due.

Withholding amounts for state income tax.

Company information – legal name, FEIN, address, NY employer registration number.

Penalties for Late Filing

Failure to file on time may result in late filing penalties and interest. It can also lead to an audit. Keep accurate payroll records, including employee hours, wages, and classification.

Tips for Small Businesses

Set up an online account with NYS Online Services to file and pay electronically.

Sync payroll software or use a platform like Classifi™ to calculate wages and contributions.

File even if no tax is due – zero returns are still required.

Double‑check employee Social Security numbers to avoid mismatches.

Conclusion

New York employers must file NYS‑45 quarterly by April 30, July 31, October 31, and January 31 tax.ny.gov . Electronic filing is mandated for most businesses tax.ny.gov . Staying organized with payroll records and using compliance tools can help you meet these requirements confidently. Classifi™ provides reminders, calculates contributions, and stores payroll documentation so you can focus on growing your business.