Conn. Gen. Stat. § 12-410
(b) Effect of certificate. The certificate relieves the seller from the burden of proof only if taken in good faith from a person who is engaged in the business of selling tangible personal property or services constituting a sale in accordance with subdivision (2) of subsection (a) of section 12-407 and who holds the permit provided for in section 12-409 and who, at the time of purchasing the tangible personal property or service:
(d) Liability of purchaser.
(e) Sale for resale.
(1) For the purpose of the proper administration of this chapter and to prevent evasion of the sales tax, a sale of any service described in subdivision (37) of subsection (a) of section 12-407 shall be considered a sale for resale only if the service to be resold is an integral, inseparable component part of a service described in said subdivision that is to be subsequently sold by the purchaser to an ultimate consumer. The purchaser of the service for resale shall maintain, in such form as the commissioner requires, records that substantiate:
(3) For purposes of subdivision (1) of this subsection, the sale of canned or prewritten computer software shall be considered a sale for resale if such software is subsequently sold, licensed or leased unaltered by the purchaser to an ultimate consumer. The purchaser of the software for resale shall maintain, in such form as the commissioner requires, records that substantiate:
(4) For purposes of subdivision (1) of this subsection, the sale of digital goods shall be considered a sale for resale if the digital goods are subsequently sold, licensed, leased, broadcast, transmitted, or distributed, in whole or in part, as an integral, inseparable component part of a digital good or service described in subdivision (26), (27), (37) or (39) of subsection (a) of section 12-407 by the purchaser of the digital goods to an ultimate consumer. The purchaser of the digital goods for resale shall maintain, in such form as the commissioner requires, records that substantiate:
(5) For purposes of subdivision (1) of this subsection, the sale of services described in subdivision (37) of subsection (a) of section 12-407 shall be considered a sale for resale if such services are subsequently resold as an integral, inseparable component part of digital goods sold by the purchaser of the services to an ultimate consumer of the digital goods. The purchaser of the services described in subdivision (37) of subsection (a) of section 12-407 for resale shall maintain, in such form as the commissioner requires, records that substantiate:
(1949 Rev., S. 2094; P.A. 75-213, S. 24, 25, 53; P.A. 85-240, S. 3, 6; P.A. 88-6, S. 3; P.A. 90-148, S. 22, 34; June Sp. Sess. P.A. 91-3, S. 112, 168; May Sp. Sess. P.A. 92-17, S. 45, 59; P.A. 93-74, S. 64, 67; P.A. 94-21, S. 1, 2; P.A. 95-359, S. 10, 19; P.A. 97-243, S. 18, 67; P.A. 00-174, S. 5, 83; P.A. 02-103, S. 6; P.A. 03-225, S. 7; P.A. 18-26, S. 16; P.A. 19-117, S. 321; P.A. 22-110, S. 19; P.A. 24-151, S. 100.)
History: P.A. 75-213 included references to sale of “service” in Subsecs. (1) and (4) and deleted provision in Subsec. (4) re inclusion of rent charged rather than cost of property to purchaser in gross receipts; P.A. 85-240 amended Subsec. (4) to provide that aircraft held for sale by a certificated air carrier, if used for purposes other than retention, demonstration or display, shall not be deemed to have been sold at retail and subject to sales tax; P.A. 88-6 amended Subsec. (4)(b) by substituting “aircraft” for “airplane” wherever the latter word appears; P.A. 90-148 added Subsec. (5) describing conditions under which a sale of service shall be considered a sale for resale, effective July 1, 1990, and applicable to sales of service for resale on or after that date; June Sp. Sess. P.A. 91-3 amended Subsec. (2) to provide a standard for determining when a certificate to the effect that property is purchased for resale is taken in good faith by the seller; May Sp. Sess. P.A. 92-17 amended Subsec. (2) to include utilization of property in landscaping or horticultural services; P.A. 93-74 added Subsec. (6) re certificate of use for sales of commercial motor vehicles and motor buses to qualify for exemption from the sales tax, effective May 19, 1993, and applicable to sales occurring on and after January 1, 1994; P.A. 94-21 eliminated provision requiring the purchaser of the service for resale to separately state the service being resold and the cost thereof on the invoice and required the purchaser of the service for resale to maintain appropriate records concerning the service and its cost, effective May 2, 1994; P.A. 95-359 deleted Subdiv. (6) re exempt purchases under Sec. 12-412(82) and (83), effective July 13, 1995; P.A. 97-243 amended Subsecs. (1) and (2) to specify that all receipts are presumed to be gross receipts subject to tax and that burden of establishing that a certificate is taken on good faith is on the seller and to change the term horticultural to horticulture, effective June 24, 1997, and applicable to sales occurring on or after October 1, 1997; P.A. 00-174 amended Subsecs. (1) to (3), inclusive, to allow use of resale certificates in the case of sales of services, effective October 1, 2000, and applicable to sales made on or after that date; P.A. 02-103 made technical changes; P.A. 03-225 amended Subdiv. (5) by designating existing provisions as Subpara. (A) and making technical changes therein and added new Subdivs. (5)(B) and (6) to prohibit the setting up of a separate purchasing company to purchase enumerated services on resale for a group of affiliates, effective October 1, 2003, and applicable to sales occurring on or after that date; P.A. 18-26 amended Subdivs. (5) and (6) to delete “subsection (a) of” re Sec. 12-412(62), and further amended Subdiv. (5) to replace references to Sec. 12-407(a)(2)(I) with references to Sec. 12-407(37), and make technical and conforming changes; P.A. 19-117 amended Subdiv. (5) to add Subparas. (C) to (E) re sale of canned or prewritten computer software, digital goods and services described in Sec. 12-407(a)(37), respectively, effective October 1, 2019, and applicable to sales occurring on or after October 1, 2019; P.A. 22-110 redesignated existing Subdivs. (1) to (6) as Subsecs. (a) to (f) and made conforming changes; P.A. 24-151 made a technical change in Subsec. (e)(5).