What Is the New York Form ST-810 (September–November 2019) For?
New York Form ST-810 (September–November 2019) is the quarterly sales tax reconciliation form required for part-quarterly filers who previously submitted monthly returns for September and October using Form ST-809. This form captures all sales and use tax activity from the whole three-month period and credits the advance payments made in the first two months. It ensures that businesses report their total taxable sales, nontaxable transactions, jurisdiction-based taxes, and applicable credits across New York State and local tax districts.
When You’d Use New York Form ST-810 (September–November 2019)
Businesses file New York Form ST-810 (September–November 2019) in several situations during the sales tax monthly filing cycle:
- Regular Filing: This form is used when a business exceeds the $300,000 threshold and is required to file a monthly tax return using Form ST-809 for the first two months, followed by Form ST-810 at the end of the quarter.
- Late Filing: If filed after the December 20, 2019, deadline, the return is considered late and subject to interest and penalties as outlined by the New York State Department of Taxation and Finance.
- Amended Return: A corrected return is submitted if errors or omissions are found after the original filing, often in coordination with Form AU-11 for any refund claims.
- Final Return: A final ST-810 must be submitted within 20 days of the last business day if a business closes, is sold, or undergoes a structural change such as incorporation.
Key Rules or Details for September–November 2019
The following rules applied to the September through November 2019 period when submitting this monthly return filing:
- Filing frequency thresholds: Any business with $300,000 or more in taxable receipts, purchases subject to tax, or related charges in a single quarter must switch to monthly filing status.
- Monthly payment system: Form ST-809 is used in months one and two to make advance payments, while Form ST-810 acts as a reconciliation tool for the entire quarter’s activity.
- E-file mandate: Most businesses are required to use Web File unless they meet an exemption; this includes those that prepare their own returns, use a computer, and have broadband internet access.
- Jurisdiction-level reporting: Filers must correctly report all taxable sales and use tax amounts based on the delivery location, using jurisdiction codes listed for New York counties and cities.
- Credit documentation: Any claimed credits must be supported with both Form ST-810-ATT and a separately filed Form AU-11 to avoid rejection during review.
- Required schedules: Depending on the business type or location, schedules such as A, B, FR, or others must be completed to report specialized sales and services accurately.
Step-by-Step (High Level)
Filing New York Form ST-810 (September–November 2019) requires a structured approach to ensure accuracy and full compliance with state rules:
- Gather Documentation: Compile all records for September through November 2019, including sales summaries, purchase invoices, exemption certificates, and both ST-809 filings.
- Complete Page 1 Summary: Enter your gross sales, report nontaxable sales separately, and include any marketplace-facilitated transactions.
- Address Special Items: Mark the appropriate boxes for address changes, filing as a final return, or when a different entity handles your income tax reporting.
- Calculate Tax by Jurisdiction: Use the provided codes to report all taxable sales and purchases subject to tax by jurisdiction, entering values into Columns C through F.
- Calculate Special Taxes: If applicable, apply the appropriate rates for car rentals or telecommunication services and total these under Step 4 on Page 3.
- Apply Credits and Advance Payments: Enter the correct values for prepaid tax credits, prior overpayments, ST-809 payments, and any PrompTax contributions.
- Compute Total Tax Due: Combine sales tax and special taxes, subtract all credits and payments, then add any late penalties or interest if applicable.
- Sign and File: If filing electronically, follow the Web File signature process; for paper filings, submit a signed return with full payment by the December 20, 2019, due date.
Common Mistakes and How to Avoid Them
Avoiding the following common errors is critical for ensuring a triumphant sales tax monthly return:
- Reporting Only November Data: Always include all activity from September through November; do not limit your figures to the third month.
- Duplicating Schedule Amounts: Do not report the same transactions in both the attached schedules and the jurisdiction listings; each item must be listed only once.
- Missing ST-809 Payments: Verify your records to ensure that all monthly payments from September and October are included in Step 5 of the return.
- Incorrect Jurisdiction Codes: Verify codes using current publications; consistently report based on the delivery destination, not the business address.
- Improper Credit Filing: Mark the credit box and file both ST-810-ATT and AU-11 with proper documentation, or the credit will be rejected.
- Overstating Vendor Collection Credit: Never exceed the $200 limit per filing; the Department will flag and correct excessive claims.
- Paper Filing When E-Filing Is Required: If you meet any e-file mandate criteria, you must use the electronic Web File system.
- Filing No-Tax Returns Late: Even if no tax is due, late filing still results in a $50 minimum penalty that cannot be waived.
- Missing PrompTax Entries: Large vendors must include these payments during reconciliation; any omissions will result in discrepancies.
- Using Wrong Tax Period Codes: Always confirm the applicable jurisdiction codes and rates that were effective for September–November 2019.
What Happens After You File
Once New York Form ST-810 (September–November 2019) is submitted, Web File users receive an immediate confirmation for their records. Payments are processed within 7–10 business days and credited to the appropriate sales tax account. The department utilizes automated systems to verify accuracy, completeness, and consistency in jurisdiction-level reporting. If you have overpaid, you may apply for a refund using Form AU-11 or carry the amount forward to the subsequent tax return.
FAQs
How does New York Form ST-810 (September–November 2019) relate to a sales tax monthly return?
This form finalizes and reconciles the data from the sales tax monthly return submissions made using Form ST-809 during the first two months of the quarter.
Can I use New York Form ST-810 as my only monthly sales tax form?
No, part-quarterly filers must file ST-809 for the first two months and use ST-810 solely for the quarterly reconciliation.
What defines the requirement for monthly return filing in New York?
Monthly return filing is required once a business’s combined taxable sales and related transactions reach $300,000 in any calendar quarter.
Does New York Form ST-810 cover local and state tax reporting?
Yes, this form requires jurisdiction-by-jurisdiction reporting, covering all state and local taxes due within New York during the specified quarter.
Is sales tax monthly filing mandatory for all businesses?
No, sales tax monthly filing only applies to businesses that exceed the filing threshold or meet special category requirements, such as fuel distributors.

