NEW STATE SALES TAX RULES: As a direct result of of the Supreme Court ruling in South Dakota v. Mayfair dated 6/21/2018, states have been given broader authority to enforce state sales tax collection requirements on businesses. LEAF is now required to collect state sales tax in certain states, but not all states. If your state requires LEAF to collect sales tax, we will calculate that tax as it applies to goods, services and/or shipping costs, and add it to your invoice. The tax rate used to calculate the tax will be the rate posted by your respective state, or the state the goods are to be shipped to, if different from your billing address. For a list of the states that currently require LEAF to collect state sales tax, please call our customer service line (1-800-532-3462) as this list has/will change over time.