W-4 Indiana Department of Revenue Motor Vehicle Sales Tax Exemption Certificate: Form ST-105 Indiana Department of Revenue General Sales Tax Exemption Certificate — IN .gov Find out why you may be on the sales tax exemption side of the balance sheet. Form ST-105 Indiana Department of Revenue General Sales Tax Exemption Certificate — Sales Tax Exemption Certificate: Individual — Individual Tax Exemption : Form ST-105 Indiana Department of Revenue General Sales Tax Exemption Certificate — Sales Tax Exemption Certificate: Individual — Non-Resident Alien — Individual Tax Exemption : Form ST-105 Indiana Department of Revenue General Sales Tax Exemption Certificate — Sales Tax Exemption Certificate: Retailer, Distributor, Wholesaler and Supplier — Retailer, Distributor, Wholesaler and Supplier Tax Exemption: Form ST-105 Indiana Department of Revenue General Sales Tax Exemption Certificate — Sales Tax Exemption Certificate: Retailer, Distributor, Wholesaler and Supplier — Retailer, Distributor, Wholesaler and Supplier Tax Exemption: Form ST-105 Indiana Department of Revenue General Sales Tax Exemption Certificate — Sales Tax Exemption Certificate: Retailer, Distributor, Wholesaler and Supplier — Retailer, Distributor, Wholesaler and Supplier Tax Exemption: Form ST-105 Indiana Department of Revenue General Sales Tax Exemption Certificate — Sales Tax Exemption Certificate: Retailer, Distributor, Wholesaler and Supplier — Retailer, Distributor, Wholesaler and Supplier Tax Exemption: Form ST-105 Indiana Department of Revenue General Sales Tax Exemption Certificate — Form ST-105 Indiana Department of Revenue General Sales Tax Exemption Certificate — Form LTC-01, Request for Taxpayer Identification Number (ST-872).