Form St-121 - Web a sales tax exemption certificate can be used by businesses (or in some cases, individuals) who are making purchases that are. Exempt organization exempt purchase certificate is available by calling (518) 485. Web enter certificate of authority number here purchases of gas or electricity or gas or electric service used to provide gas or.
Web enter certificate of authority number here purchases of gas or electricity or gas or electric service used to provide gas or. Web a sales tax exemption certificate can be used by businesses (or in some cases, individuals) who are making purchases that are. Exempt organization exempt purchase certificate is available by calling (518) 485.