Tax Calculation for Multi-Address Checkouts in the United States
Giftship’s multi-address functionality allows tax to be calculated based on multiple shipping addresses in a single checkout. If you charge sales tax in the United States, you will need to configure your nexus states within Giftship’s admin panel.
First, navigate to Shopify Admin -> Apps -> Giftship -> “Shipping to Multiple Adddresses”, and scroll to the section titled “Tax Calculation”.
For each state in which you have physical or economic nexus, select the state from the dropdown, and, if applicable, enter the zip code for you physical nexus location.
These values should match what you have configured in you Shopify tax settings for the United States.