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What to Keep for a New York Sales Tax Audit: Records, Receipts and Certificates
By Marc Aschoff ·
What TB-ST-770 and TB-ST-240 require vendors to keep, for how long, and a simple filing layout for invoices, delivery proof and exemption certificates.
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New York Sales Tax Calendar: November 2026 to March 2027, Plus a Records Routine
By Marc Aschoff ·
Monthly, quarterly and annual filing dates from November 2026 to March 2027, the weekend rule, and a short weekly records routine for the holiday stretch.
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New York Sales Tax Return Due December 21, 2026: A Filing Checklist
By Marc Aschoff ·
The September through November return is due Monday, December 21, 2026. Who files what, how the 5% vendor credit works, and what late filing costs.
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Year-End Cleanup for New York Sellers: Are Your Exemption Certificates in Order?
By Marc Aschoff ·
Certificates are kept three years from the due date of the last return they support. A year-end audit checklist for resale and exempt-use paperwork.
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Shipping Holiday Orders Across New York: Which Sales Tax Rate Applies?
By Marc Aschoff ·
New York rates follow the delivery address, not the seller. Worked examples from Publication 718 and the address lookup for holiday gift shipments.
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Selling at a New York Holiday Market? Register for a Certificate of Authority 20 Days Early
By Marc Aschoff ·
Holiday markets and pop-up shops need a Certificate of Authority before the first sale, with at least 20 days' notice. The temporary certificate, display rules, penalties and a quarter-boundary catch.
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Q4 and the holiday surge: what a busy season does to your New York sales tax filing
By Marc Aschoff ·
Holiday-quarter volume can bump a small seller into monthly filing without warning, and the marketplace-facilitator rules mean not every sale on your books is one you're responsible for collecting. What to check before the Q4 close date.