This article explains what a resale certificate is and outlines when it's needed.

A resale certificate serves as proof that you're a legitimate retailer or purchaser buying products with the intent to resell them or use them as parts in products you plan to resell. In essence, it demonstrates that the products you're purchasing are for business purposes, not personal use.

A resale certificate is typically required when you resell goods within the United States. The requirement generally applies if you're registered to collect sales tax in at least one US state.

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