N.Y. Comp. Codes R. & Regs. tit. 20, § 525.2
(a) Sales tax.
(i) Except as specifically exempted or excluded, sales tax is imposed on the receipts from:
(4) The sales tax is generally a “consumer tax.” That is, the person required to collect tax must collect the tax from the customer (i.e., the consumer) when collecting the taxable receipt, rent or amusement charge to which the tax applies. The customer cannot shift the liability for payment of the tax to another person nor otherwise be relieved of such liability. The vendor, or other person required to collect the tax, collects the tax as trustee for and on account of the State and is also personally liable for the tax required to be collected.
(b) Compensating use tax.
(1) The compensating use tax is imposed on the use within the State of certain tangible personal property and certain enumerated services:
(2) Compensating use tax is also imposed on the use within this State of certain tangible personal property manufactured, processed or assembled by the user, including, certain computer software written or otherwise created by the user.
Cross-reference: see Part 531 of this Title.
(1)