Future eCommerce Multi Vendor Marketplace Tax Consultation

I am seeking an experienced tax consultant to guide my multi vendor marketplace through future sales tax states. The ideal candidate has an extensive background in eCommerce, specifically with online marketplaces and a deep understanding of sales tax regulations. Their role would simply be to provide insight and advice on how to handle sales tax in the future.

Key Responsibilities:

- Provide expert advice on sales tax regulations for online multi vendor marketplaces
- Establish best practices for future sales tax states in my marketplace
- Remain up-to-date with the latest changes in eCommerce sales tax regulations

Required Skills and Experience:

- Proven record of tax consultancy, specifically in sales tax
- In-depth knowledge of eCommerce sales tax laws and regulations
- Experience with multi vendor marketplaces is highly desirable
- Strong analytical and consultancy skills.


--Specifically, I'm looking for clarification on how the future multi-vendor marketplace should handle sales tax collection for Vendors when it comes to the Marketplace surpassing state economic thresholds. The transaction occurs on the marketplace.

Are the below scenarios correct?

Marketplace and Vendor Both Have Nexus:
-The marketplace collects and remits sales tax.

Only Marketplace Has Nexus:
-The marketplace collects and remits sales tax.

Only Vendor Has Nexus:
-The vendor collects and remits sales tax.

No Nexus for Both:
-No sales tax is collected.