Sales Tax Compliance for Complex Manufacturing Businesses FAQs

• Are manufacturers exempt from sales tax?

  Not entirely. Manufacturers are generally exempt from sales tax on certain production-related purchases, but not all purchases qualify.

  Most states provide a manufacturing exemption for machinery, equipment, and materials that are directly used in the production process. However, items used for administration, storage, or general business operations are typically taxable. Because exemption rules vary by state, manufacturers must carefully determine which purchases qualify.
  
  Further more,  they are not exempt from collecting sales tax unless a resale certificate is collected.  Wholesale transactions may be exempt with proper resale documentation, but manufacturers selling direct to consumers or into states where they have nexus are generally required to collect sales tax on taxable sales. 

• Why is validating and managing exemption certificates critical for manufacturers?

  Manufacturers must not only collect exemption certificates, they must validate and maintain them to support tax-exempt sales. Because sales of tangible personal property are presumed taxable, the burden is on the manufacturer to prove why tax was not charged.

  Resale and other exemption certificates must be complete, accurate, and applicable to the state and type of transaction. An incomplete or invalid certificate may be rejected during an audit, resulting in the manufacturer being assessed for uncollected tax, penalties, and interest.

  For manufacturers with customers across multiple states, managing exemption certificates can become complex. Certificates may expire, requirements vary by state, and some states require specific forms. Implementing a structured process to collect, review, and periodically update exemption documentation is essential to reducing audit exposure and protecting margin.

• When do manufacturers owe use tax?

  Manufacturers owe use tax when sales tax was not paid on taxable purchases that are used, stored, or consumed in their operations. This often applies to equipment purchased from out-of-state vendors, online purchases, or items withdrawn from resale inventory for internal use.

  Use tax is one of the most common areas of audit exposure for manufacturers. Implementing controls to identify untaxed purchases can help prevent unexpected assessments and penalties.

• Why are resale certificates important for manufacturers making wholesale sales?

  Resale certificates allow manufacturers to sell products tax-free to distributors, retailers, or other buyers who intend to resell those goods. When a customer purchases finished goods for resale, they provide a valid resale certificate so the manufacturer does not charge sales tax.

  Because sales of tangible personal property are presumed taxable, manufacturers must maintain valid resale certificates to support exempt wholesale transactions. If proper documentation is not on file, states may assess uncollected sales tax, penalties, and interest during an audit. For manufacturers with multi-state customers, managing resale certificates is a critical part of reducing sales tax risk.

   

• Do manufacturers need to collect sales tax on direct-to-consumer website sales?

  Yes, if the manufacturer has established sales tax nexus in a state. Once nexus is created through physical presence or by exceeding a state’s economic nexus threshold, sales tax must be collected on taxable direct-to-consumer sales in that state.

  Even if most sales are wholesale and exempt with proper resale documentation, those wholesale transactions can still count toward economic nexus thresholds in states that count gross sales for economic nexus thresholds. In many states, gross receipts include both wholesale and retail sales when determining whether the threshold has been met. For example, a manufacturer may exceed a $100,000 economic nexus threshold primarily due to wholesale revenue, which then requires registration and collection of sales tax on its smaller volume of direct ecommerce sales.

  For manufacturers expanding into online sales, monitoring nexus across all revenue streams is critical to ensuring timely registration and compliance.

• Does storing inventory in another state create sales tax nexus?

  Yes, in most cases it does. Owning inventory in a state, even if it is held in a third-party warehouse or fulfillment center, typically creates physical nexus.

  This is common for manufacturers selling through ecommerce platforms that use distributed fulfillment networks. Once nexus is triggered, the manufacturer may be required to register, collect sales tax on taxable sales, and file returns in that state.