St 12 Form Ma - Web owners of manufacturing plants may be eligible for tax exemption if 75 percent or more used for manufacturing or heating. A sales tax exemption certificate can be used by businesses (or in some cases,. Gain access to the fillable pdf file.
A sales tax exemption certificate can be used by businesses (or in some cases,. Gain access to the fillable pdf file. Web owners of manufacturing plants may be eligible for tax exemption if 75 percent or more used for manufacturing or heating.