GET TAX RELIEF NOW!
GET IN TOUCH

Get Tax Help Now

Thank you for contacting
GetTaxReliefNow.com!

We’ve received your information. If your issue is urgent — such as an IRS notice
or wage garnishment — call us now at +(888) 260 9441 for immediate help.
Oops! Something went wrong while submitting the form.
Reviewed by: William McLee
Reviewed date:
January 16, 2026

What Is the New York Form ST-810 (September–November 2021) For?

New York Form ST-810 (September–November 2021) is the quarterly sales and use tax reconciliation return for part-quarterly filers in New York. Businesses that previously submitted advance payments for September, October, and November using Form ST-809 use this form to summarize, adjust, and reconcile their actual tax obligations for the quarter. It captures state and local sales taxes, specialized schedules, and credits, providing a final accounting of the business’s taxable activity across all applicable New York jurisdictions.

When You’d Use New York Form ST-810 (September–November 2021)

You would use this form during the quarterly filing cycle under the following conditions:

  • Late filing: If you did not submit your reconciliation return by the December 20, 2021, deadline, you are required to file this form late and pay the applicable penalties and interest.

  • Amended returns: You must use this form to correct errors from a previously filed ST-810 and clearly indicate that it is an amended return.

  • Reconciliation with Form ST-809: This form is used to reconcile the advance payments made monthly with Form ST-809 against the actual tax due for the quarter.

  • Final return for closed businesses: If your business closed during the filing period, you must file a final Form ST-810 within 20 days of ceasing operations to report all tax obligations.

Key Rules or Details for September–November 2021

Several important filing rules apply to this reporting period and must be followed to avoid errors or penalties:

  • Filing thresholds for monthly filers: Businesses that reach $300,000 or more in taxable receipts, purchases subject to tax, rents, or amusement charges in a quarter must file monthly returns under the part-quarterly schedule.

  • Jurisdiction-based reporting: All sales and purchases must be reported based on the location where the goods were delivered or services performed, not where the business is located, to ensure proper sales tax filing in New York.

  • Required schedules: Businesses must complete and include applicable schedules, such as Schedule A, B, FR, H, N, and CW, to accurately report specific types of taxable activity and credits.

  • No vendor collection credit: Businesses using Form ST-810 are not eligible to claim the vendor collection credit, which is reserved for quarterly or annual filers using Form ST-100 or ST-101.

  • Electronic filing mandate: Businesses must file online using the Sales Tax Web File system if they meet the conditions of having broadband internet access, preparing filings without a paid preparer, and using a computer to complete returns.

Step-by-Step (High Level)

Filing New York Form ST-810 (September–November 2021) involves a detailed multi-step process designed to capture your total tax liability accurately:

  1. Return summary: Enter your gross sales and services in box 1, excluding sales tax; report nontaxable and marketplace-facilitated sales in boxes 1a and 1b as applicable.

  2. Final return information (if closing): If this is your final return, mark the designated box, indicate the reason for closure, and include tax collected on any business assets sold.

  3. Calculating sales and use tax: Use the applicable schedules to report sales and purchases for each jurisdiction, multiplying the amounts by the correct tax rate to calculate the tax due for each location.

  4. Calculating special taxes: Enter specialized taxes such as those on passenger car rentals, information services, or vapor products, based on their separate rates, and total them in box 15.

  5. Applying advance payments and credits: List prepaid cigarette tax, overpayments from prior periods, and all Form ST-809 payments made for September, October, and November to reduce the balance due.

  6. Final tax due calculation: Add sales tax and special taxes, then subtract credits and advance payments to determine the amount owed for the quarter (box 17).

  7. Penalties and interest: If filing late or underpaying, calculate the appropriate penalties and daily interest using the Tax Department’s online calculator or contact their support line.

  8. Total amount due: Combine taxes, penalties, and interest to calculate your full payment owing and enter this amount in boxes 19 and 20.

  9. Signing and Submission: Sign and date the return, provide the preparer’s information if applicable, and file online through the Sales Tax Web File system to comply with the 'file New York sales tax online' requirement.

Common Mistakes and How to Avoid Them

To ensure accurate sales tax filing in New York, avoid these common errors when completing Form ST-810:

  • Failing to file when no tax is due: Always submit the return, even if no tax is owed, by entering "none" in the tax fields to avoid a $50 penalty.

  • Omitting jurisdiction codes: Report sales based on the delivery or service location using the correct jurisdiction codes; misallocating sales may result in overpayment or underpayment.

  • Including sales tax in gross sales: Do not include collected sales tax in your gross sales total; doing so inflates your figures and creates discrepancies during processing.

  • Incorrectly claiming credits: You must complete Schedule CW (Form ST-810-ATT) and file Form AU-11 with documentation; otherwise, the Tax Department may deny your credit.

  • Filing with outdated business information: If your address, ownership, or business structure changed, update it on Form ST-810 or file Form DTF-95 or DTF-96 to prevent processing delays.

  • Forgetting the third-party designee section: If you want to authorize someone to discuss the return on your behalf, fill out this section to avoid delays during audit or inquiry.

  • Overstating advance payments: Only report payments actually made on ST-809 forms for the quarter; do not estimate or include unrelated periods to avoid reconciliation issues.

What Happens After You File

Once New York Form ST-810 (September–November 2021) is filed, the New York State Department of Taxation and Finance processes the return and updates your sales tax account. If you overpaid, you may either request a refund using Form AU-11 or carry the credit forward to your next return. If you underpaid or filed late, you may receive a Notice of Determination detailing additional tax, penalty, and interest owed. Processing times may vary, but online filers typically receive confirmation more quickly. 

FAQs

What is the difference between Form ST-809 and Form ST-810?

Form ST-809 is used for monthly advance payments, while Form ST-810 is the quarterly reconciliation return that finalizes your actual sales tax liability.

Can I file New York sales tax online using this form?

Yes, if you meet the electronic filing conditions, you must file New York sales tax online through the Sales Tax Web File system.

How do I file sales tax in New York if I operate in multiple jurisdictions?

You must report each sale based on the location where the product was delivered, or the service was performed, when you file sales tax in New York.

Does this form apply to all sales tax filing requirements in New York?

No, the New York Form ST-810 (September–November 2021) applies only to part-quarterly filers and does not replace other filing requirements, such as Form ST-100, for quarterly filers.

Is the New York State sales tax filing required if my business had no sales?

Yes, NY State sales tax filing is still required, and you must submit a return showing zero tax due to avoid late filing penalties.

How did you hear about us? (Optional)

Thank you for submitting!

Your submission has been received!
Oops! Something went wrong while submitting the form.

Frequently Asked Questions