While we are unable to provide tax advice, we want to make it easy to understand best practices for your tax settings on Walmart Marketplace. Here are some resources:
Log into your Walmart Seller Center
Go to the Tax Setup page
Select the States where you have nexus (requirement to collect sales tax). Be sure to follow Configuring Your Taxes In The Seller Center for State-specific nuances.
In the Tax Codes section, enter one tax code for each shipping option. Generic tax code '2038710' is recommended according to this video: https://vimeo.com/164512893
Here's a screenshot showing you how to enter the tax code for each shipping option:
6. Enter a short Tax Policy to inform Walmart customers about your general tax policies and rules. For example: "6% sales tax will be applied to all orders shipped to any Maryland address."