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Reviewed by: William McLee
Reviewed date:
January 16, 2026

What the New York Form ST-810 (September-November 2015) Is For

New York Form ST-810 (September-November 2015) is the quarterly sales and use tax return required for businesses classified as part-quarterly filers in New York State. This form is used to reconcile three monthly sales tax payments and to report detailed taxable sales and purchases by jurisdiction. It supports accurate state and local sales tax NY reporting by combining monthly payment activity with complete jurisdiction-level sales and use tax filing information for the quarter.

When You’d Use New York Form ST-810 (September-November 2015)

This form is required in specific situations tied to monthly filing status and quarterly reconciliation.

  • Meeting the monthly filing threshold: Businesses with combined taxable sales and purchases of at least $300,000 in a single quarter must file monthly returns and complete this quarterly reconciliation.

  • Reconciling monthly ST-809 payments: The form is used to summarize and reconcile the three monthly sales tax payments made during the sales tax reporting period.

  • Reporting jurisdiction-specific activity: Businesses must use this return to report taxable sales and purchases by county, city, or special district.

  • Filing a no-tax-due return: Vendors with no taxable activity during the quarter must still file to remain compliant.

  • Submitting a final return: The form is required when a business closes, sells, or changes its legal structure during the quarter.

  • Correcting previously filed information: An amended return must be filed if errors are discovered after submission.

  • Maintaining sales and use tax monthly compliance: Part-quarterly filers must submit this return to remain in good standing with New York sales tax requirements.

Key Rules or Details for the 2015 Filing Period

Several vital rules apply specifically to New York Form ST-810 (September-November 2015).

  • Electronic filing requirements apply: Most businesses meeting the state's criteria must file electronically using the New York State Department of Taxation and Finance's Web File system.

  • Jurisdiction-level reporting is mandatory: Taxable sales and purchases must be reported separately for each applicable jurisdiction using correct codes and rates.

  • Special taxes may be required: Certain transactions, such as passenger car rentals and information services, are subject to additional taxes that must be reported and paid.

  • Monthly filing thresholds remain in effect: Once a business qualifies as a part-quarterly filer, it must continue filing monthly until eligibility to change status is approved.

  • Supporting schedules may be required: Depending on the business activity, additional schedules, such as Schedule A, B, FR, or H, must be filed with the return.

  • Penalty and interest rules are enforced: Late filing or underpayment results in mandatory penalties and interest calculated from the original due date.

  • Credit claims require separate documentation: Credits must be supported by the necessary schedules and refund forms, which are filed separately from the primary return.

Step-by-Step (High Level)

Filing New York Form ST-810 (September-November 2015) requires following a nine-step process based on the state’s reporting standards.

  1. Return Summary: Enter your sales tax identification number, business name, and complete address as registered, along with gross and nontaxable sales figures for the quarter.

  2. Final Return Information: Complete this section only if your business was sold, closed, or changed its legal structure during the sales tax reporting period.

  3. Calculate Sales and Use Taxes: Report jurisdiction-specific taxable sales and purchases using the correct codes and tax rates provided by the Department of Taxation and Finance.

  4. Calculate Special Taxes: Include applicable taxes on services such as passenger car rentals and information services using the special rates designated on the form.

  5. Other Tax Credits and Advance Payments: Enter any tax credits for prepaid cigarette tax or overpayments carried forward, along with your Form ST-809 monthly payments.

  6. Calculate Taxes Due: Combine the totals from the sales tax and special tax sections, then subtract any applicable credits to determine the net tax due.

  7. Determine Penalty and Interest: If you are filing late or underpaying your liability, calculate the penalty and interest using the Department’s online calculator or call for assistance.

  8. Calculate Total Amount Due: Add any penalty and interest to your total taxes due, and enter the full payment amount on the return.

  9. Sign and Mail or Submit: Complete the signature section and either Web File electronically or mail the paper return to the correct address, including all pages and schedules.

Common Mistakes and How to Avoid Them

Several common errors can result in penalties or processing delays when filing this return, but each can be avoided through careful preparation.

  • Missing the monthly filing threshold: Monitor quarterly taxable sales and purchases closely and begin monthly filing immediately once the $300,000 threshold is reached to remain compliant.

  • Using incorrect jurisdiction codes: Verify delivery locations and match them to the correct jurisdiction codes and tax rates using official New York State publications before filing.

  • Failing to file when no tax is due: Submit the form every required period, even when there is no taxable activity, to avoid the automatic minimum penalty.

  • Omitting required schedules: Review the instructions each quarter and attach all applicable schedules to ensure the return is complete.

  • Claiming credits without documentation: Complete Form ST-810-ATT and file Form AU-11 separately with supporting records whenever claiming a credit or refund.

  • Understating penalty and interest amounts: Use the New York State penalty and interest calculator or contact the Department directly to calculate the correct amounts before submitting payment.

  • Submitting incomplete pages or missing identification numbers: Confirm that all pages are included and that your sales tax identification number appears on every page before submission.

What Happens After You File

Once you submit the New York Form ST-810 (September-November 2015), the New York State Department of Taxation and Finance reconciles the return with your prior ST-809 filings for that quarter. Electronic submissions receive a confirmation number, while paper returns are processed manually and may take several weeks to process. If your return shows an overpayment, you must file Form AU-11 to request a refund or apply the credit to a future period. Businesses may receive notices for missing schedules, inconsistencies, or underreported figures. 

FAQs

Do I need to file Form ST-810 if I already submitted Form ST-809 for each month?

Yes, the ST-810 is still required because it reconciles your monthly payments and provides detailed jurisdiction-level data for the full quarter.

What happens if I file after the due date but pay all taxes on time?

Even if all taxes are paid, a late ST-810 filing still results in penalties, as timely submission is required for each sales tax reporting period.

Can I amend New York Form ST-810 (September–November 2015) after the deadline has passed?

Yes, amended returns are allowed and should be clearly marked as such, accompanied by corrections, explanations, and supporting documentation.

Does the form include reporting for both state and local sales tax in NY?

Yes, the return includes detailed reporting for state and local sales tax in New York based on jurisdiction-specific codes and rates.

Who is considered a monthly filer under New York’s sales and use tax rules?

A business that exceeds the $300,000 threshold in a single quarter is classified for sales and use tax monthly filing and must submit ST-810 each quarter.

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