St-120.1 Form - Web in order to purchase materials tax free, you must complete and provide contractor exempt purchase certificate. Web a sales tax exemption certificate can be used by businesses (or in some cases, individuals) who are making purchases. New york state department of taxation and finance. New york state and local sales.
Web a sales tax exemption certificate can be used by businesses (or in some cases, individuals) who are making purchases. New york state and local sales. Web in order to purchase materials tax free, you must complete and provide contractor exempt purchase certificate. New york state department of taxation and finance.