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Reviewed by: William McLee
Reviewed date:
January 17, 2026

What Form NYS-45-ATT (2024) Is For

New York employers are required to file Form NYS-45-ATT (2024) to report employee wages and withholding tax. Filing this form ensures compliance with New York State tax law and helps you meet unemployment insurance and tax obligations.

The form captures critical data, including quarterly wage and withholding tax details, which you must report to the Department of Taxation and Finance. It also reports dependent health insurance coverage provided to employees. Filing ensures your Employer Registration Number and all related tax data are submitted accurately, avoiding penalties for noncompliance.

When You’d Use Form NYS-45-ATT (2024)

Form NYS-45 is required quarterly for New York State employers to report employee wages and withholding taxes. You must file it to comply with New York State tax law and meet your Unemployment Insurance Return obligations.

If your business is subject to employment tax, you’ll use Form NYS-45 to report both quarterly wage and withholding tax details. This form ensures compliance with the Department of Taxation and Finance's requirements. Employers must file the form for each quarter, including specific sections like Part A and Part B, to report wages and contributions. Failure to file the form on time may lead to penalties or interest charges.

Key Rules or Details for 2024

In 2024, you must submit Form NYS-45 online through Business Online Services or NYS-45 Web File to meet reporting requirements. This form ensures that you report employee wages and withholding amounts accurately every quarter.

Employers must report all relevant wage information each quarter, including the quarterly wage and dependent health insurance details. You must also ensure the correct reporting of withholding tax for each employee. Noncompliance with New York State Tax Law may lead to penalties and interest charges. Be sure to review the latest withholding tax forms and updates from the Department of Taxation and Finance to ensure compliance with current regulations. Be sure to review the newest withholding tax forms and updates from the Department of Taxation and Finance to ensure compliance.

Step-by-Step (High Level)

  • Step 1: Log in to Business Online Services or NYS-45 Web File. Access the online system to begin your form submission.

  • Step 2: Select the correct tax year and enter your Employer Registration Number. Ensure that the correct tax year is selected and that your Employer Registration Number is entered for accurate identification.

  • Step 3: Enter employee wage information for the quarter, including the withholding tax amounts. Report all wages and withholding tax details for your employees, including dependent health insurance information if applicable.

  • Step 4: Review and confirm that all details are correct—Double-check entries to ensure accuracy and compliance with New York State tax law.

  • Step 5: Submit the form electronically. File the completed form online through the provided platforms.
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  • Step 6: Pay any outstanding amounts. Submit payment for any owed amounts using the available direct payment options—electronic methods.

Here are some common mistakes taxpayers make when filing and how to avoid them.

These are common mistakes taxpayers make when filing, but they can be avoided by following proper procedures. Recognizing and correcting these mistakes improves filing accuracy.

  • Missing Quarterly Return Deadlines: This mistake happens when you fail to file by the deadline. You must submit your quarterly return by the deadline.

  • Incorrect Wage Information: This mistake occurs when you report incorrect employee wages or withholding tax details. You must verify all wage and withholding tax information before submission.

  • Omitting Dependent Health Insurance Coverage: This mistake occurs when you fail to report dependent health coverage for employees. You must include all dependent health insurance details in your filing.

  • Incorrect Employer Registration Number: This mistake occurs when you enter the Employer Registration Number incorrectly. You must ensure your Employer Registration Number is entered correctly.

  • Incomplete Withholding Tax Reporting: This mistake occurs when withholding tax details for employees are missing. You must ensure withholding tax information is fully reported for each employee.

What Happens After You File

Once you file Form NYS-45, the Department of Taxation and Finance processes your return for accuracy and completeness. Any discrepancies may prompt a request for clarification or correction.

Once your filing is accepted, it is recorded in your Unemployment Insurance records with the Department of Taxation and Finance. Check for notifications regarding errors to ensure timely resolution and compliance with New York State tax law.

FAQs

What is Form NYS-45 used for?

Form NYS-45 is used by New York employers to report employee wages and withholding tax to the Department of Taxation and Finance. It helps employers comply with New York State tax law.

How often do I need to file Form NYS-45?

Form NYS-45 must be filed quarterly for each tax year to report employee wages and taxes accurately. Employers should file it on time to avoid penalties.

Can I file Form NYS-45 online?

Yes, employers can file Form NYS-45 online through NYS-45 Web File or Business Online Services. Both platforms make it easy to submit required data.

What happens if I miss the filing deadline?

Failing to meet the filing deadline may result in penalties or interest charges.  To prevent this, please ensure that you file on time and verify that all information is accurate and complete.

Do I need a tax preparer to file Form NYS-45?

A tax preparer is not required to file Form NYS-45, but can assist with accuracy. They ensure compliance with New York State tax law.

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